A. Sakai

发表

A novel non-invasive mechanical technique of cup and stem placement and leg length adjustment in total hip arthroplasty for dysplastic hips

Y. Okazaki, Takashi Murayama, H. Ohnishi, 2015, International Orthopaedics.

Deficiency of vitamin A delays bone healing process in association with reduced BMP2 expression after drill-hole injury in mice.

Toshitaka Nakamura, T. Ninomiya, Kazuhiro Tanaka, 2010, Bone.

Sequential changes in transforming growth factor (TGF)-β1 concentration in synovial fluid and mRNA expression of TGF-β1 receptors in chondrocytes after immobilization of rabbit knees

Toshitaka Nakamura, T. Norimura, R. Okazaki, 2001, Journal of Bone and Mineral Metabolism.

Alpha-Defensin-1 in Synovial Fluid is Useful for Diagnosis of Joint Infection.

K. Sabanai, Toshiharu Mori, A. Sakai, 2020, Journal of UOEH.

Stage-dependent changes in trabecular bone turnover and osteogenic capacity of marrow cells during development of type II collagen-induced arthritis in mice.

M. Ito, T. Nakamura, M Ito, 2002, Bone.

Selective cyclooxygenase-2 inhibitor prevents reduction of trabecular bone mass in collagen-induced arthritic mice in association with suppression of RANKL/OPG ratio and IL-6 mRNA expression in synovial tissues but not in bone marrow cells

Toshitaka Nakamura, Kazuhiro Tanaka, A. Sakai, 2008, Journal of Bone and Mineral Metabolism.

Flt-1 tyrosine kinase-deficient homozygous mice result in decreased trabecular bone volume with reduced osteogenic potential.

S. Niida, Toshitaka Nakamura, A. Sakai, 2007, Bone.

Ultrashort time-to-echo quantitative magnetic resonance imaging of the triangular fibrocartilage: differences in position

Y. Korogi, T. Aoki, A. Nozaki, 2018, European Radiology.

The posterior tibial slope is mainly created by the posterior rotation of the tibial condyles

R. Nagamine, A. Sakai, Kang-Il Kim, 2020, Journal of orthopaedic surgery.

Proximal tibia vara involves the medial shift of the tibial articular surface

R. Nagamine, A. Sakai, T. Suguro, 2020, Journal of orthopaedic surgery.

Comparison of gender differences in health-related quality of life between patients with hand disease and those with other musculoskeletal disorders of the knee and lumbar spine.

A. Sakai, Yoshiaki Yamanaka, Takafumi Tajima, 2021, Journal of orthopaedic science : official journal of the Japanese Orthopaedic Association.

Changes in trabecular bone turnover and bone marrow cell development in tail-suspended mice.

A. Sakai, T. Nakamura, 2001, Journal of musculoskeletal & neuronal interactions.

Cortical bone loss due to skeletal unloading in aldehyde dehydrogenase 2 gene knockout mice is associated with decreased PTH receptor expression in osteocytes.

A. Sakai, Yoshiaki Yamanaka, Takafumi Tajima, 2018, Bone.

Elcatonin prevents bone loss caused by skeletal unloading by inhibiting preosteoclast fusion through the unloading-induced high expression of calcitonin receptors in bone marrow cells.

A. Sakai, Manabu Tsukamoto, K. Menuki, 2016, Bone.

A Diagnostic Approach to Myelopathy Based on Prognostic Factors in Patients with Lower Extremity Symptoms.

K. Shimizu, A. Sakai, T. Muramoto, 2020, Spine.

Arthroscopic Fragment Fixation Using Hydroxyapatite/Poly-L-Lactate Acid Thread Pins for Treating Elbow Osteochondritis Dissecans

Toshitaka Nakamura, Hajime Utsunomiya, A. Sakai, 2015, The American journal of sports medicine.

Nonunion of the isolated capitate waist fracture

Toshitaka Nakamura, N. Okimoto, A. Sakai, 2002, Journal of orthopaedic science : official journal of the Japanese Orthopaedic Association.

Reduced Expression of Platelet Endothelial Cell Adhesion Molecule‐1 in Bone Marrow Cells in Mice After Skeletal Unloading

Toshitaka Nakamura, Yoshiya Tanaka, S. Nakayamada, 2005, Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research.

Enhanced expression of Wnt9a in the flexor tenosynovium in idiopathic carpal tunnel syndrome

A. Sakai, Yoshiaki Yamanaka, K. Menuki, 2015, Journal of orthopaedic research : official publication of the Orthopaedic Research Society.

Bisphosphonate (YM529) delays the repair of cortical bone defect after drill-hole injury by reducing terminal differentiation of osteoblasts in the mouse femur.

Toshitaka Nakamura, Masahiro Tanaka, A. Sakai, 2005, Bone.

Fifteen-Year Comparison of Wear and Osteolysis Analysis for Cross-Linked or Conventional Polyethylene in Cementless Total Hip Arthroplasty for Hip Dysplasia-A Retrospective Cohort Study.

H. Ohnishi, Toshiharu Mori, A. Sakai, 2017, The Journal of arthroplasty.

Analysis of the proportion and neuronal activity of excitatory and inhibitory neurons in the rat dorsal spinal cord after peripheral nerve injury

Y. Ueta, A. Sakai, Y. Motojima, 2021, Neuroscience Letters.

Elcatonin injections suppress systemic bone resorption without affecting cortical bone regeneration after drill‐hole injuries in mice

Toshitaka Nakamura, A. Sakai, Shinya Tanaka, 2009, Journal of orthopaedic research : official publication of the Orthopaedic Research Society.

Systemic bone loss, impaired osteogenic activity and type I muscle fiber atrophy in mice with elastase-induced pulmonary emphysema: Establishment of a COPD-related osteoporosis mouse model.

K. Sabanai, Toshiharu Mori, A. Sakai, 2019, Bone.

Disturbance of osteonal bone remodeling and high tensile stresses on the lateral cortex in atypical femoral fracture after long-term treatment with Risedronate and Alfacalcidol for osteoporosis

Hideaki Takahashi, N. Yamamoto, A. Sakai, 2021, Bone reports.

Endoscopic shelf acetabuloplasty combined with labral repair, cam osteochondroplasty, and capsular plication for treating developmental hip dysplasia.

Toshitaka Nakamura, Akihiro Ariumi, H. Iida, 2014, Arthroscopy techniques.

Extensor pollicis longus tendon ruptures after the use of volar locking plates for distal radius fractures.

Toshitaka Nakamura, A. Sakai, S. Moritani, 2013, Hand surgery : an international journal devoted to hand and upper limb surgery and related research : journal of the Asia-Pacific Federation of Societies for Surgery of the Hand.

Current Smoking Is Associated with Delayed Wound Healing But Not with Improvement of Contracture after the Open Palm Technique for Dupuytren's Disease.

A. Sakai, Yoshiaki Yamanaka, Takafumi Tajima, 2019, The journal of hand surgery Asian-Pacific volume.

Reduced bone formation in alcohol-induced osteopenia is associated with elevated p21 expression in bone marrow cells in aldehyde dehydrogenase 2-disrupted mice.

T. Oyama, T. Kawamoto, Toshitaka Nakamura, 2011, Bone.

The CeCORD-J study on collagenase injection versus aponeurectomy for Dupuytren's contracture compared by hand function and cost effectiveness

N. Iwasaki, R. Shinomiya, H. Kato, 2022, Scientific Reports.

Transient receptor potential vanilloid 1 and 4 double knockout leads to increased bone mass in mice

Y. Ueta, N. Okimoto, H. Ohnishi, 2020, Bone reports.

Disruption of aldehyde dehydrogenase 2 gene results in altered cortical bone structure and increased cortical bone mineral density in the femoral diaphysis of mice.

T. Kawamoto, Toshitaka Nakamura, T. Isse, 2013, Bone.

The anabolic action of intermittent PTH in combination with cathepsin K inhibitor or alendronate differs depending on the remodeling status in bone in ovariectomized mice.

Toshitaka Nakamura, Toshiharu Mori, A. Sakai, 2009, Bone.

Modulation of bone turnover by alfacalcidol and/or alendronate does not prevent glucocorticoid-induced osteoporosis in growing minipigs

Toshitaka Nakamura, Masako Ito, A. Shiraishi, 2005, Journal of Bone and Mineral Metabolism.

Skeletal Unloading Alleviates the Anabolic Action of Intermittent PTH(1–34) in Mouse Tibia in Association With Inhibition of PTH‐Induced Increase in c‐fos mRNA in Bone Marrow Cells

Toshitaka Nakamura, Masahiro Tanaka, N. Okimoto, 2004, Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research.

Trabecular bone mass and bone formation are preserved after limb immobilisation in p53 null mice

T. Norimura, R. Okazaki, A. Ootsuyama, 2004, Annals of the rheumatic diseases.

Climbing Exercise Increases Bone Mass and Trabecular Bone Turnover Through Transient Regulation of Marrow Osteogenic and Osteoclastogenic Potentials in Mice

T. Notomi, Toshitaka Nakamura, N. Nakura, 2003, Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research.

Hypocalcemia and bone mineral changes in hemodialysis patients with low bone mass treated with denosumab: a 2-year observational study.

Y. Ubara, A. Sakai, N. Sawa, 2021, Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association.

Predictors of Poor Clinical Outcome After Arthroscopic Labral Preservation, Capsular Plication, and Cam Osteoplasty in the Setting of Borderline Hip Dysplasia

Dean Matsuda, Hajime Utsunomiya, A. Sakai, 2018, The American journal of sports medicine.

Arthroscopic Shoelace Capsular Closure Technique in the Hip Using Ultratape.

J. Chahla, Hajime Utsunomiya, A. Sakai, 2017, Arthroscopy techniques.

Endoscopic shelf acetabuloplasty can improve clinical outcomes and achieve return to sports-related activity in active patients with hip dysplasia

Dean Matsuda, Hajime Utsunomiya, Toshiharu Mori, 2017, Knee Surgery, Sports Traumatology, Arthroscopy.

Hip Arthroscopic Management Can Improve Osteitis Pubis and Bone Marrow Edema in Competitive Soccer Players With Femoroacetabular Impingement

Dean Matsuda, Hajime Utsunomiya, Hirotaka Nakashima, 2019, The American journal of sports medicine.

Posterior Pituitary Hormones and Pain

Y. Ueta, A. Sakai, M. Kawasaki, 2015 .

Prostaglandin E2 receptor (EP4) selective agonist (ONO-4819.CD) accelerates bone repair of femoral cortex after drill-hole injury associated with local upregulation of bone turnover in mature rats.

Toshitaka Nakamura, Masahiro Tanaka, A. Sakai, 2004, Bone.

Risk Factors for Decrease in The Cross-Sectional Area of the Paraspinal Muscle in 1,849 Individuals: A 10-Year Longitudinal Study

A. Sakai, K. Narusawa, T. Nakagawa, 2021 .

Disturbance of Osteonal Remodeling in Atypical Femoral Fracture: A Short Review of Pathogenesis and a Case Report: Histomorphometric Analysis of Fracture Site

Hideaki Takahashi, N. Yamamoto, A. Sakai, 2021, Osteoporotic Fracture and Systemic Skeletal Disorders.

Treatment status and radiographic features of patients with atypical femoral fractures.

J. Iwamoto, S. Ohtori, Tetsuji Yamamoto, 2017, Journal of orthopaedic science : official journal of the Japanese Orthopaedic Association.

Study of Atypical Femoral Fracture Cases Coupled in a Multicenter Study.

Hidetoshi Tanaka, Masahiro Tanaka, A. Sakai, 2016, Journal of UOEH.

Analyses of Oxidative DNA Damage and Its Repair Activity in the Livers of 3′‐Methyl‐4‐dimethylaminoazobenzene‐treated Rodents

K. Higashi, T. Hirano, H. Kasai, 2000, Japanese journal of cancer research : Gann.

Acetaldehyde dehydrogenase 2 deficiency increases mitochondrial ROS emission and induces mitochondrial protease Omi/HtrA2 in skeletal muscle.

K. Kitagawa, T. Kawamoto, K. Nakayama, 2020, American journal of physiology. Regulatory, integrative and comparative physiology.

Large-dose ascorbic acid administration suppresses the development of arthritis in adjuvant-injected rats

R. Okazaki, K. Tanaka, N. Okimoto, 1999, Archives of Orthopaedic and Trauma Surgery.

Proposal of accurate cup placement procedure during total hip arthroplasty based on pelvic tilt discrepancies in the lateral position

A. Sakai, M. Kawasaki, Manabu Tsukamoto, 2021, Scientific Reports.

Serum 25-hydroxyvitamin D concentrations in Japanese postmenopausal women with osteoporotic fractures

S. Ikeda, A. Sakai, Yoshiaki Yamanaka, 2019, Osteoporosis and sarcopenia.

Hand function and cost effectiveness after collagenase injection versus aponeurectomy for Dupuytren’s contracture: results of the CeCORD-J study

N. Iwasaki, R. Shinomiya, Toshikazu Tanaka, 2021 .

Oxidative stress causes muscle structural alterations via p38 MAPK signaling in COPD mouse model

K. Nakazato, K. Azuma, Qian Zhou, 2022, Journal of Bone and Mineral Metabolism.

Spontaneous Differentiation of Human Mesenchymal Stem Cells on Poly-Lactic-Co-Glycolic Acid Nano-Fiber Scaffold

Yoshiya Tanaka, S. Nakayamada, K. Yamaoka, 2016, PloS one.

Association of bone mineral density with deformity of the distal radius in low-energy Colles' fractures in Japanese women above 50 years of age.

Toshitaka Nakamura, A. Sakai, Yoshiaki Yamanaka, 2008, The Journal of hand surgery.

A comparative study of clinical and radiological outcomes of dorsally angulated, unstable distal radius fractures in elderly patients: intrafocal pinning versus volar locking plating.

Toshitaka Nakamura, A. Sakai, S. Moritani, 2007, The Journal of hand surgery.

Hinged elbow fixation and treatment of unstable elbow dislocation with ipsilateral arteriovenous shunts: A case report.

A. Sakai, Yoshiaki Yamanaka, M. Sawano, 2021, Journal of orthopaedic science : official journal of the Japanese Orthopaedic Association.

Subacromial bursitis following human papilloma virus vaccine misinjection.

Toshitaka Nakamura, A. Sakai, S. Uchida, 2012, Vaccine.

Dietary Calcium and Phosphorus Ratio Regulates Bone Mineralization and Turnover in Vitamin D Receptor Knockout Mice by Affecting Intestinal Calcium and Phosphorus Absorption

S. Kato, Toshitaka Nakamura, M. Uehara, 2003, Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research.

Is Arthroscopic Hip Labral Repair/Reconstruction Surgery Effective for Treating Femoroacetabular Impingement in the Presence of Osteoarthritis?

C. Larson, Hajime Utsunomiya, Hirotaka Nakashima, 2019, Clinical journal of sport medicine : official journal of the Canadian Academy of Sport Medicine.

Survey of hip fractures in Japan: Recent trends in prevalence and treatment.

J. Iwamoto, S. Ohtori, Tetsuji Yamamoto, 2017, Journal of orthopaedic science : official journal of the Japanese Orthopaedic Association.

Effect of estradiol on fibroblasts from postmenopausal idiopathic carpal tunnel syndrome patients

A. Sakai, Yoshiaki Yamanaka, Takafumi Tajima, 2018, Journal of cellular physiology.

The ALDH2 rs671 polymorphism is associated with athletic status and muscle strength in a Japanese population

K. Nakazato, T. Okamoto, Mikako Sakamaki-Sunaga, 2021, Biology of sport.

Disruption of the Aldehyde Dehydrogenase 2 Gene Results in No Increase in Trabecular Bone Mass Due to Skeletal Loading in Association with Impaired Cell Cycle Regulation Through p21 Expression in the Bone Marrow Cells of Mice

T. Kawamoto, Toshiharu Mori, A. Sakai, 2017, Calcified Tissue International.

Development of a novel knee contracture mouse model by immobilization using external fixation

A. Sakai, Yoshiaki Yamanaka, Takafumi Tajima, 2021, Connective tissue research.

Effects of central administration of oxytocin-saporin cytotoxin on chronic inflammation and feeding/drinking behaviors in adjuvant arthritic rats

Y. Ueta, T. Maruyama, K. Sabanai, 2016, Neuroscience Letters.

Exposure of macrophage-like cells to titanium particles does not affect bone resorption, but inhibits bone formation

Toshitaka Nakamura, H. Kawaguchi, A. Sakai, 1999, Journal of orthopaedic science : official journal of the Japanese Orthopaedic Association.

Hip arthroscopy enables classification and treatment of precollapse subchondral insufficiency fracture of the femoral head associated intra-articular pathology

Dean Matsuda, Hajime Utsunomiya, Toshiharu Mori, 2017, Knee Surgery, Sports Traumatology, Arthroscopy.

Trabecular Bone Turnover and Bone Marrow Capacity for Bone Cells in Immobilization-Related Bone Loss

A. Sakai, 1999 .

Primary Site Identification of Soft‐Tissue Mass: Things to Know in MRI Assessment

Y. Korogi, T. Aoki, Y. Hayashida, 2020, Journal of magnetic resonance imaging : JMRI.

Endogenous oxytocin exerts anti-nociceptive and anti-inflammatory effects in rats

M. Shimizu, M. Muratani, S. Lightman, 2022, Communications Biology.

Skeletal unloading reduces cluster of differentiation (CD) 38 expression in the bone marrow and osteoblasts of mice.

Yoshiya Tanaka, Hajime Utsunomiya, K. Yamaoka, 2020, Journal of orthopaedic science : official journal of the Japanese Orthopaedic Association.

Potential of Continuous Local Antibiotic Perfusion Therapy for Fracture-Related Infections

A. Sakai, Yoshiaki Yamanaka, Kenji Kosugi, 2022, Infectious Diseases and Therapy.

Upregulation of the hypothalamo-neurohypophysial system and activation of vasopressin neurones attenuates hyperalgesia in a neuropathic pain model rat

Y. Ueta, K. Nishimura, T. Onaka, 2022, Scientific Reports.

Mechanical comparison of novel bioabsorbable plates with titanium plates and small-series clinical comparisons for metacarpal fractures.

Toshitaka Nakamura, A. Sakai, K. Menuki, 2012, The Journal of bone and joint surgery. American volume.

Component gap control during posterior-stabilised total knee arthroplasty using the posterior condylar pre-cut technique

R. Nagamine, K. Sabanai, N. Okimoto, 2021, Journal of Experimental Orthopaedics.

Apoptosis and p53 expression in chondrocytes relate to degeneration in articular cartilage of immobilized knee joints.

Toshitaka Nakamura, T. Norimura, R. Okazaki, 2003, The Journal of rheumatology.

Bone marrow capacity for bone cells and trabecular bone turnover in immobilized tibia after sciatic neurectomy in mice.

Y. Tanaka, T. Norimura, R. Okazaki, 1996, Bone.

Arthroscopic Shoelace Side-to-Side Repair Technique Using Ultratape for the Treatment of Longitudinal Midsubstance Rotator Cuff Tears

A. Sakai, S. Uchida, Hitoshi Suzuki, 2017, Arthroscopy Techniques.

Useful technique using negative pressure wound therapy on postoperative lower leg open wounds with compartment syndrome

Kentaro Matsui, A. Sakai, Hiroyuki Okada, 2014 .

Elbow Ulnar Collateral Ligament Shoelace Repair with Internal Bracing for Treating Throwing Athletes Who Have Ulnar Collateral Ligament Instability

Hajime Utsunomiya, A. Sakai, Yoshiaki Yamanaka, 2021, Arthroscopy techniques.

Osteoclasts are not activated in middle ear cholesteatoma

Hideaki Suzuki, A. Sakai, T. Ohbuchi, 2016, Journal of Bone and Mineral Metabolism.

Treatment with once‐weekly alendronate oral jelly compared with once‐weekly alendronate oral tablet for Japanese patients with primary osteoporosis: An open‐label, prospective, observational study

Y. Uemura, H. Tsurukami, N. Okimoto, 2018, Health science reports.

Endoscopic Shelf Acetabuloplasty for Treating Acetabular Large Bone Cyst in Patient With Dysplasia

Dean Matsuda, Kazuki Yamada, A. Sakai, 2018, Arthroscopy techniques.

Bone marrow cell development and trabecular bone dynamics after ovariectomy in ddy mice.

T. Norimura, T. Suda, T. Nakamura, 1998, Bone.

Candidal Prosthetic Hip Infection in a Patient with Previous Candidal Sepsis - A Case Report.

H. Ohnishi, A. Sakai, Y. Murata, 2016, Journal of UOEH.

Performance of two bone substitutes of novel cotton-like β-TCP/PDLGA and granular β-TCP on bone regeneration in the femoral bone defect of the Beagle dogs

A. Sakai, Yoshiaki Yamanaka, Naoka Toyota, 2020, Bone reports.

Isolation and Characterization of Synovial Mesenchymal Stem Cell Derived from Hip Joints: A Comparative Analysis with a Matched Control Knee Group

I. Sekiya, Hajime Utsunomiya, Hirotaka Nakashima, 2017, Stem cells international.

Synovial Mesenchymal Stem Cells Derived From the Cotyloid Fossa Synovium Have Higher Self-renewal and Differentiation Potential Than Those From the Paralabral Synovium in the Hip Joint

I. Sekiya, Hajime Utsunomiya, Hirotaka Nakashima, 2018, The American journal of sports medicine.

Effects of peripherally administered cholecystokinin-8 and secretin on feeding/drinking and oxytocin-mRFP1 fluorescence in transgenic rats

Y. Ueta, T. Maruyama, H. Ohnishi, 2016, Neuroscience Research.

Effects of transforming growth factor beta s and basic fibroblast growth factor on articular chondrocytes obtained from immobilised rabbit knees.

T. Norimura, R. Okazaki, N. Kunugita, 1996, Annals of the rheumatic diseases.

Neuropathic Pain Up-Regulates Hypothalamo-Neurohypophysial and Hypothalamo-Spinal Oxytocinergic Pathways in Oxytocin-Monomeric Red Fluorescent Protein 1 Transgenic Rat

Y. Ueta, T. Maruyama, K. Nishimura, 2019, Neuroscience.

Comparison of the induction of c-fos-eGFP and Fos protein in the rat spinal cord and hypothalamus resulting from subcutaneous capsaicin or formalin injection

Y. Ueta, T. Maruyama, H. Ohnishi, 2017, Neuroscience.

Disruption of the p53 Gene Results in Preserved Trabecular Bone Mass and Bone Formation After Mechanical Unloading

Toshitaka Nakamura, T. Norimura, R. Okazaki, 2002, Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research.

Preliminary Report of Suppurative Arthritis of the knee

Yoshiyuki Kobayashi, A. Sakai, Katsumi Suzuki, 1987 .

Case Report and Literature Review of Periprosthetic Atypical Femoral Fractures After Total Hip Arthroplasty.

Toshiharu Mori, A. Sakai, Manabu Tsukamoto, 2019, Journal of UOEH.

Effects of pulsing electromagnetic fields on cultured cartilage cells

T. Norimura, A. Sakai, K. Suzuki, 2004, International Orthopaedics.

A Case of Open Reduction and Internal Fixation Using Kirschner Wire and Wire Cerclage for Four-Part Fracture-Dislocation of the Proximal Humerus

A. Sakai, T. Oshige, N. Ihara, 2007 .

Isolation and Characterization of Human Mesenchymal Stem Cells Derived From Shoulder Tissues Involved in Rotator Cuff Tears

I. Sekiya, Toshitaka Nakamura, Hajime Utsunomiya, 2013, The American journal of sports medicine.

The effect of an associated ulnar styloid fracture on the outcome after fixation of a fracture of the distal radius.

A. Sakai, S. Moritani, Y. Zenke, 2009, The Journal of bone and joint surgery. British volume.

Isolation and Characterization of Synovial Mesenchymal Stem Cells Derived From Patients With Chronic Lateral Ankle Instability: A Comparative Analysis of Synovial Fluid, Adipose Synovium, and Fibrous Synovium of the Ankle Joint

I. Sekiya, Hirotaka Nakashima, A. Sakai, 2022, Orthopaedic journal of sports medicine.

1072 Distal Biceps Brachii Tendon Repairs: A Single-Incision Technique Using a Cortical Button With Interference Screw Versus a Double-Incision Technique Using Suture Fixation Through Bone Tunnels

Kyle T. Aune, Walter A. Laughlin, B. Reider, 2015 .

Combined open and arthroscopic approaches in hip preservation surgery

Dean Matsuda, A. Sakai, S. Uchida, 2018 .

Assessment of influences of posterior rotation of the tibial condyles on the Insall-Salvati ratio

R. Nagamine, A. Sakai, Kang-Il Kim, 2022, Scientific reports.

Bony Entrapment of Ulnar Nerve after Closed Forearm Fracture: A Case Report

T. Nakamura, A. Sakai, N. Toba, 2004, Journal of orthopaedic surgery.

Arthroscopic treatment for symptomatic lateral discoid meniscus: The effects of different ages, groups and procedures on surgical outcomes.

Hirotaka Nakashima, A. Sakai, S. Uchida, 2018, The Knee.

Vascular endothelial growth factor is expressed along with its receptors during the healing process of bone and bone marrow after drill-hole injury in rats.

Toshitaka Nakamura, Masahiro Tanaka, A. Sakai, 2003, Bone.

Congenital extension contracture of metacarpophalangeal joints

A. Sakai, K. Suzuki, T. Nakamura, 1997, Archives of Orthopaedic and Trauma Surgery.

Postoperative Deep Gluteal Syndrome After Hip Arthroscopic Surgery

A. Sakai, H. Martin, K. Kizaki, 2020, Orthopaedic journal of sports medicine.

Role of Inducible Nitric Oxide Synthase in Skeletal Adaptation to Acute Increases in Mechanical Loading

Toshitaka Nakamura, K. Ikeda, Ken Watanabe, 2002, Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research.

Lower lumbar osteoporotic vertebral fractures with neurological symptoms might have two different pathogeneses according to early magnetic resonance images

K. Doi, A. Sakai, Y. Oishi, 2019, Acta Neurochirurgica.

Comparison of once-weekly teriparatide and alendronate against new osteoporotic vertebral fractures at week 12

Y. Fujino, S. Ikeda, A. Sakai, 2019, Journal of Bone and Mineral Metabolism.

Presence or absence of adjacent vertebral fractures has no effect on long-term global alignment and quality of life in patients with osteoporotic vertebral fractures treated with balloon kyphoplasty.

K. Doi, A. Sakai, Y. Oishi, 2020, Journal of orthopaedic science : official journal of the Japanese Orthopaedic Association.

Shorter unipedal standing time and lower bone mineral density in women with distal radius fractures

A. Sakai, Y. Zenke, T. Nakamura, 2010, Osteoporosis International.

Association of unipedal standing time and bone mineral density in community-dwelling Japanese women

K. Aoyagi, Y. Abe, A. Sakai, 2009, Osteoporosis International.

Hip Arthroscopy for Diffuse Idiopathic Skeletal Hyperostosis Using a Capsulotomy-First Approach.

Dean Matsuda, A. Sakai, Y. Yukizawa, 2020, Orthopedics.

Loss-of-Function Mutations in PTPN11 Cause Metachondromatosis, but Not Ollier Disease or Maffucci Syndrome

J. Seidman, M. Vikkula, I. Holm, 2011, PLoS genetics.

In-vivo postoperative motion analysis of metal and ceramic bipolar hip hemiarthroplasty.

T. Majima, N. Okimoto, Toshiharu Mori, 2017, Journal of Orthopaedic Science.

Chronic alcohol consumption prevents 8-hydroxyguanine accumulation in 3'-methyl-4-dimethylaminoazobenzene-treated mouse liver.

T. Hirano, H. Kasai, A. Sakai, 2009, Biochemical and biophysical research communications.

The neurohypophysial oxytocin and arginine vasopressin system is activated in a knee osteoarthritis rat model

Y. Ueta, T. Maruyama, K. Nishimura, 2020, Journal of neuroendocrinology.

Osteoclast development in immobilized bone is suppressed by parathyroidectomy in mice

Toshitaka Nakamura, Toshiharu Mori, A. Sakai, 2004, Journal of Bone and Mineral Metabolism.

Mechanical Unloading and Bone Marrow Cells

Toshitaka Nakamura, K. Sakata, H. Tsurukami, 1999 .

Chronic obstructive pulmonary disease severity in middle-aged and older men with osteoporosis associates with decreased bone formation

K. Sabanai, Toshiharu Mori, A. Sakai, 2020, Osteoporosis and sarcopenia.

[Analysis of tendon injuries accompanying distal radius fractures using volar locking plates].

A. Sakai, K. Menuki, Y. Zenke, 2014, Journal of UOEH.

Comparison of Functional Outcome Between Early and Delayed Internal Fixation Using Volar Locking Plate for Distal Radius Fractures.

A. Sakai, S. Moritani, Takashi Maehara, 2015, Journal of UOEH.

Clinical Results of Volar Locking Plate for Distal Radius Fractures: Conventional versus Minimally Invasive Plate Osteosynthesis

Toshitaka Nakamura, A. Sakai, S. Moritani, 2011, Journal of orthopaedic trauma.

[An Experience of Using a Distraction Plate for an Elderly Patient with a Highly Communited Intraarticular Distal Radius Fracture].

A. Sakai, K. Menuki, Y. Zenke, 2019, Journal of UOEH.

Wnt signaling in idiopathic carpal tunnel syndrome

A. Sakai, K. Menuki, Y. Zenke, 2016 .

Short-term efficacy and safety of collagenase injection for Dupuytren's contracture: Therapy protocol for successful outcomes in a clinical setting.

A. Sakai, Takafumi Tajima, Manabu Tsukamoto, 2019, Journal of orthopaedic science : official journal of the Japanese Orthopaedic Association.

Efficacy and safety of collagenase Clostridium histolyticum injection for Dupuytren’s contracture in non-Caucasian Japanese patients (CORD-J Study): the first clinical trial in a non-Caucasian population

H. Hirata, A. Sakai, R. Kakinoki, 2017, The Journal of hand surgery, European volume.

Results of “Open Technique” for Dupuytren's Contracture

A. Sakai, Katsumi Suzuki, K. Abe, 1988 .

More radial shortening after low-energy Colles’ fractures is associated with type 2 diabetes mellitus among postmenopausal women, irrespective of bone mineral density

A. Sakai, K. Menuki, Y. Zenke, 2013, Journal of orthopaedic science : official journal of the Japanese Orthopaedic Association.

Treatment with or without internal fixation for ulnar styloid base fractures accompanied by distal radius fractures fixed with volar locking plate.

Toshitaka Nakamura, A. Sakai, S. Moritani, 2012, Hand surgery : an international journal devoted to hand and upper limb surgery and related research : journal of the Asia-Pacific Federation of Societies for Surgery of the Hand.

Radiographic Measurements as a Predictor of Correction Loss in Conservative Treatment of Colles' Fracture.

A. Sakai, Takafumi Tajima, K. Menuki, 2019, Journal of UOEH.

Linburg-Comstock syndrome: a case report.

Toshitaka Nakamura, A. Sakai, K. Menuki, 2012, Hand surgery : an international journal devoted to hand and upper limb surgery and related research : journal of the Asia-Pacific Federation of Societies for Surgery of the Hand.

Trabecular Bone Turnover and Bone Marrow Cell Development in Tail‐Suspended Mice

Toshitaka Nakamura, T. Norimura, H. Tsurukami, 1999, Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research.

Longitudinal study of risk factors for decreased cross-sectional area of psoas major and paraspinal muscle in 1849 individuals

A. Sakai, K. Narusawa, T. Nakagawa, 2021, Scientific Reports.

Climbing exercise enhances osteoblast differentiation and inhibits adipogenic differentiation with high expression of PTH/PTHrP receptor in bone marrow cells.

Toshitaka Nakamura, N. Okimoto, N. Kunugita, 2008, Bone.

Arthroscopic osteochondral autologous transplantation for the treatment of osteochondritis dissecans of the femoral head

Hajime Utsunomiya, A. Sakai, E. Honda, 2017, SICOT-J.

Hip Arthroscopic Osteochondral Autologous Transplantation for Treating Osteochondritis Dissecans of the Femoral Head.

Hajime Utsunomiya, H. Hayashi, A. Sakai, 2015, Arthroscopy techniques.

Hip arthroscopic management for treating a rhythmic gymnast with a large bone cyst at the femoral head in the setting of hip dysplasia—a case report

A. Sakai, S. Uchida, Akihisa Hatakeyama, 2022, Journal of hip preservation surgery.

15-year comparison of cementless total hip arthroplasty with anatomical or high cup placement for Crowe I to III hip dysplasia.

Toshitaka Nakamura, N. Nakura, H. Tsurukami, 2012, Orthopedics.

Clinical and Radiographic Predictors for Worsened Clinical Outcomes After Hip Arthroscopic Labral Preservation and Capsular Closure in Developmental Dysplasia of the Hip

Toshitaka Nakamura, Hajime Utsunomiya, Toshiharu Mori, 2016, The American journal of sports medicine.

Cleft Sign and Bone Marrow Edema of the Pubic Symphysis Are Associated With Sports and Bony Morphology in Patients With Femoroacetabular Impingement and Labral Tears

Hajime Utsunomiya, A. Sakai, Manabu Tsukamoto, 2022, Orthopaedic journal of sports medicine.

Hip Dysplasia in Athletes

Dean Matsuda, A. Sakai, S. Uchida, 2019, Hip and Groin Pain in the Athlete.

Post-traumatic Malunion of the Distal Radial Intra-articular Fractures Treated With Autologous Costal Osteochondral Grafts and Bioabsorbable Plates

Toshitaka Nakamura, A. Sakai, K. Menuki, 2014, Techniques in hand & upper extremity surgery.

Long-term outcomes of metacarpal fractures surgically treated using bioabsorbable plates: a retrospective study

A. Sakai, Takafumi Tajima, K. Menuki, 2020, BMC Musculoskeletal Disorders.

Effects of a weekly injection of human parathyroid hormone (1-34) and withdrawal on bone mass, strength, and turnover in mature ovariectomized rats.

T. Nakamura, H. Tsurukami, N. Okimoto, 1998, Bone.

Highly Cross-Linked Polyethylene Reduces Osteolysis Incidence and Wear-Related Reoperation Rate in Cementless Total Hip Arthroplasty Compared With Conventional Polyethylene at a Mean 12-Year Follow-Up.

H. Ohnishi, Toshiharu Mori, A. Sakai, 2017, The Journal of arthroplasty.

Human parathyroid hormone (1-34) increases mass and structure of the cortical shell, with resultant increase in lumbar bone strength, in ovariectomized rats

Toshitaka Nakamura, Masako Ito, N. Okimoto, 2004, Journal of Bone and Mineral Metabolism.

Regulation of mineral-to-matrix ratio of lumbar trabecular bone in ovariectomized rats treated with risedronate in combination with or without vitamin K2

Toshitaka Nakamura, Masako Ito, R. Phipps, 2004, Journal of Bone and Mineral Metabolism.

Factors associated with mortality among patients with necrotizing soft tissue infections: An analysis of 4597 cases using the Diagnosis Procedure Combination Database.

S. Matsuda, Y. Fujino, A. Sakai, 2020, International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases.

Patients aged in their 70s do not have a high risk of progressive osteoarthritis following arthroscopic femoroacetabular impingement correction and labral preservation surgery

Dean Matsuda, Hajime Utsunomiya, Hirotaka Nakashima, 2019, Knee Surgery, Sports Traumatology, Arthroscopy.

A Comparison of Clinical Outcome Between Athletes and Nonathletes Undergoing Hip Arthroscopy for Femoroacetabular Impingement

Hajime Utsunomiya, A. Sakai, S. Uchida, 2017, Clinical journal of sport medicine : official journal of the Canadian Academy of Sport Medicine.

1α-Hydroxyvitamin D3 suppresses trabecular bone resorption by inhibiting osteoclastogenic potential in bone marrow cells after ovariectomy in mice

Toshitaka Nakamura, S. Nishida, A. Sakai, 2001, Journal of Bone and Mineral Metabolism.

Effect of trabecular bone contour on ultimate strength of lumbar vertebra after bilateral ovariectomy in rats.

M. Ito, T. Nakamura, H. Tsurukami, 2001, Bone.

Efficacy of combined treatment with alendronate (ALN) and eldecalcitol, a new active vitamin D analog, compared to that of concomitant ALN, vitamin D plus calcium treatment in Japanese patients with primary osteoporosis

M. Ito, T. Tomomitsu, H. Tsurukami, 2015, Osteoporosis International.

Acute Mono-Arthritis Activates the Neurohypophysial System and Hypothalamo-Pituitary Adrenal Axis in Rats

Y. Ueta, T. Maruyama, K. Nishimura, 2020, Frontiers in Endocrinology.

Arthroscopic Technique for Isolated Posterolateral Rotational Instability of the Knee.

A. Sakai, C. Pascual-Garrido, S. Uchida, 2017, Arthroscopy techniques.

Biomechanical comparison of lag screw and non-spiral blade fixation of a novel femoral trochanteric nail in an osteoporotic bone model

H. Terayama, N. Okimoto, A. Sakai, 2021, Scientific Reports.

Zoledronic acid sequential therapy could avoid disadvantages due to the discontinuation of less than 3-year denosumab treatment

N. Okimoto, Y. Okazaki, A. Sakai, 2020, Journal of Bone and Mineral Metabolism.

Effectiveness of monthly intravenous ibandronate on the low responders to oral bisphosphonate: the MOVEMENT study

H. Hagino, Y. Imanishi, H. Tsurukami, 2019, Journal of Bone and Mineral Metabolism.

A comparative study of the effects of daily minodronate and weekly alendronate on upper gastrointestinal symptoms, bone resorption, and back pain in postmenopausal osteoporosis patients

N. Okimoto, A. Sakai, T. Yoshioka, 2013, Journal of Bone and Mineral Metabolism.

Influence on the bone mineral density and bone metabolism marker after the interruption and reinitiation of monthly minodronate therapy in postmenopausal women with osteoporosis

N. Okimoto, A. Sakai, K. Menuki, 2018, Osteoporosis and sarcopenia.

Efficacy of non-steroidal anti-inflammatory drugs on zoledronic acid-induced acute-phase reactions: randomized, open-label, Japanese OZ study

J. Saito, S. Fujiwara, N. Okimoto, 2019, Journal of Bone and Mineral Metabolism.

[Effects of SERMs on bone health. Efficacy of SERM for incidence of fractures in osteoporotic patients with lifestyle-related diseases].

Toshitaka Nakamura, A. Sakai, 2010, Clinical calcium.

Design of a Multicenter, Randomized, Open Label, Parallel Group Study to Evaluate the Efficacy of Loxoprofen on Acute-Phase Reactions in Japanese Primary Osteoporosis Patients Treated with Zoledronic Acid

S. Fujiwara, N. Okimoto, S. Ikeda, 2017 .

A Clinical Study of Monteggia Fractures

Toshitaka Nakamura, A. Sakai, Katsumi Suzuki, 1997 .

Genetic Disruption of All NO Synthase Isoforms Enhances BMD and Bone Turnover in Mice In Vivo: Involvement of the Renin‐Angiotensin System

Masato Tsutsui, Hiroaki Shimokawa, Hideyuki Hirasawa, 2008, Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research.

Pisiform malalignment associated with distal radius fractures.

A. Sakai, Takafumi Tajima, K. Menuki, 2018, Journal of orthopaedic science : official journal of the Japanese Orthopaedic Association.

Closed Reduction and Immobilization for Traumatic Isolated Dislocation of the Carpometacarpal Joint of the Thumb in Rugby Football Players

Toshitaka Nakamura, N. Okimoto, Y. Okazaki, 2001, The American journal of sports medicine.

Surgical management of obturator neuropathy with a concomitant acetabular labral tear — a case report

A. Sakai, S. Uchida, Eiichiro Nakamura, 2018, Acta orthopaedica.

The prevalence and risk factors of pubic bone marrow edema in femoroacetabular impingement and hip dysplasia

A. Sakai, S. Uchida, Akihisa Hatakeyama, 2021, Journal of hip preservation surgery.

Possible involvement of TRPV1 and TRPV4 in nociceptive stimulation- induced nocifensive behavior and neuroendocrine response in mice

Y. Ueta, T. Maruyama, H. Ohnishi, 2015, Brain Research Bulletin.

High-resolution MRI predicts steroid injection response in carpal tunnel syndrome patients

Y. Korogi, T. Aoki, Y. Hayashida, 2014, European Radiology.

Higher risk of cam regrowth in adolescents undergoing arthroscopic femoroacetabular impingement correction: a retrospective comparison of 33 adolescent and 74 adults

Hajime Utsunomiya, A. Sakai, S. Uchida, 2019, Acta orthopaedica.

Effect of metformin treatment and its time of administration on joint capsular fibrosis induced by mouse knee immobilization

A. Sakai, Takafumi Tajima, Manabu Tsukamoto, 2021, Scientific Reports.

[Pathophysiology of immobilization osteoporosis.]

A. Sakai, K. Menuki, 2017, Clinical calcium.

Clinical and Radiographic Predictors for Unsalvageable Labral Tear at the Time of Initial Hip Arthroscopic Management for Femoroacetabular Impingement

Hajime Utsunomiya, Hirotaka Nakashima, A. Sakai, 2019, The American journal of sports medicine.

Prevalence and involvement patterns of radiographic hand osteoarthritis in Japanese women: the Hizen–Oshima Study

Toshitaka Nakamura, K. Aoyagi, S. Honda, 2006, Journal of Bone and Mineral Metabolism.

Presynaptic glutamatergic transmission and feedback system of oxytocinergic neurons in the hypothalamus of a rat model of adjuvant arthritis

Y. Ueta, H. Ohnishi, A. Sakai, 2020, Molecular pain.

Presynaptic feedback system of oxytocinergic neurons in the hypothalamus of a rat model of adjuvant arthritis

Y. Ueta, H. Ohnishi, A. Sakai, 2019 .

Decrease in osteoporotic fracture in the western Kitakyushu region by the STOP-Fx study

K. Sabanai, S. Ikeda, A. Sakai, 2023, Journal of Bone and Mineral Metabolism.

Attenuation of Post‐Traumatic Osteoarthritis After Anterior Cruciate Ligament Injury Via Inhibition of Hedgehog Signaling

K. Sabanai, A. Sakai, Manabu Tsukamoto, 2019, Journal of orthopaedic research : official publication of the Orthopaedic Research Society.

Delayed cortical bone healing due to impaired nuclear Nrf2 translocation in COPD mice.

K. Azuma, A. Sakai, Takafumi Tajima, 2023, Bone.

Disruption of the aldehyde dehydrogenase 2 gene increases the bone anabolic response to intermittent PTH treatment in an ovariectomized mouse model.

A. Sakai, Takafumi Tajima, Manabu Tsukamoto, 2020, Bone.

T. Kawamoto, Toshiharu Mori, A. Sakai, 2017, Calcified Tissue International.

Findings as a starting point to unravel the underlying mechanisms of in vivo interactions involving Wnt10a in bone, fat and muscle.

Y. Sasaguri, H. Izumi, K. Kohno, 2019, Bone.

Cyclooxygenase-2 selective inhibition suppresses restoration of tibial trabecular bone formation in association with restriction of osteoblast maturation in skeletal reloading after hindlimb elevation of mice.

Toshitaka Nakamura, Masahiro Tanaka, A. Sakai, 2006, Bone.

Intermittent Administration of Human Parathyroid Hormone(1–34) Prevents Immobilization‐Related Bone Loss by Regulating Bone Marrow Capacity for Bone Cells in ddY Mice

Toshitaka Nakamura, T. Norimura, R. Okazaki, 1999, Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research.

Vertebrobasilar Infarction Due to Bow Hunter's Syndrome in a Patient with Rheumatoid Arthritis: A Case Report.

Y. Korogi, S. Ide, S. Kakeda, 2021, Journal of UOEH.

Radiologic Correlation Between the Ischiofemoral Space and Morphologic Characteristics of the Hip in Hips With Symptoms of Dysplasia.

Dean Matsuda, Hirotaka Nakashima, A. Sakai, 2018, AJR. American journal of roentgenology.

Fluorescent Visualisation of Oxytocin in the Hypothalamo‐neurohypophysial/‐spinal Pathways After Chronic Inflammation in Oxytocin‐Monomeric Red Fluorescent Protein 1 Transgenic Rats

Y. Ueta, T. Maruyama, K. Sabanai, 2015, Journal of neuroendocrinology.

ApoE Gene Deficiency Enhances the Reduction of Bone Formation Induced by a High‐Fat Diet Through the Stimulation of p53‐Mediated Apoptosis in Osteoblastic Cells

S. Niida, Toshitaka Nakamura, H. Shimokawa, 2007, Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research.

Effects of 1,25(OH)2D3 on turnover, mineralization, and strength of bone in growing rats with liver cirrhosis induced by administration of carbon tetrachloride.

Toshitaka Nakamura, H. Tsurukami, N. Okimoto, 2003, Bone.

Osteoblast Development in Bone Loss Due to Skeletal Unloading

Toshitaka Nakamura, A. Sakai, 2011 .

Unipedal standing exercise and hip bone mineral density in postmenopausal women: a randomized controlled trial

Toshitaka Nakamura, A. Sakai, Y. Zenke, 2010, Journal of Bone and Mineral Metabolism.

Why not use your own body weight to prevent falls? A randomized, controlled trial of balance therapy to prevent falls and fractures for elderly people who can stand on one leg for ≤15 s

Meigen Liu, H. Hagino, N. Endo, 2013, Journal of orthopaedic science : official journal of the Japanese Orthopaedic Association.

Validity and application of Doiguchi's pelvic tilt measurement method.

M. Osaki, K. Chiba, A. Sakai, 2023, Journal of Orthopaedic Science.

Septic Arthritis of Childhood

A. Sakai, Yasuyuki Kobayashi, Katsumi Suzuki, 1989 .

Accurate cup placement using a portable navigation system during total hip arthroplasty based on pelvic orientation in the lateral decubitus position.

A. Sakai, M. Kawasaki, Manabu Tsukamoto, 2022, Artificial organs.

Differentiation potential of synovial mesenchymal stem cells isolated from hip joints affected by femoroacetabular impingement syndrome versus osteoarthritis.

I. Sekiya, J. Huard, Hajime Utsunomiya, 2020, Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association.

Arthroscopic Technique to Reduce Suture Button Migration During Anterior Cruciate Ligament Reconstruction Procedure

Hajime Utsunomiya, A. Sakai, S. Uchida, 2017, Arthroscopy techniques.

Effects of transforming growth factor s and basic fibroblast growth factor on articular chondrocytes obtained from immobilised rabbit kneesf

Toshitaka Nakamura, T. Norimura, R. Okazaki, 2022 .

Kienböck disease treated by excisional arthroplasty with a palmaris longus tendon ball: a comparative study of cases with or without bone core.

A. Sakai, K. Menuki, N. Toba, 2004, Hand surgery : an international journal devoted to hand and upper limb surgery and related research : journal of the Asia-Pacific Federation of Societies for Surgery of the Hand.

Endoscopic Shelf Acetabuloplasty Concomitant With Labral Repair, Cam Osteoplasty, and Capsular Plication to Treat Acetabular Dysplasia in Artistic Athletes: A Case Series

Hajime Utsunomiya, A. Sakai, Manabu Tsukamoto, 2021, Orthopaedic journal of sports medicine.

Possible Involvement of the Rat Hypothalamo‐Neurohypophysial/‐Spinal Oxytocinergic Pathways in Acute Nociceptive Responses

Y. Ueta, T. Maruyama, T. Onaka, 2016, Journal of neuroendocrinology.

Adiponectin inhibits fibrosis of the palmar aponeurosis in Dupuytren’s contracture in male patients

A. Sakai, Takafumi Tajima, Manabu Tsukamoto, 2023, Bone & joint research.

Role of Trpv1 and Trpv4 in surgical incision-induced tissue swelling and Fos-like immunoreactivity in the central nervous system of mice

Y. Ueta, T. Maruyama, K. Nishimura, 2018, Neuroscience Letters.

Bone Microstructure Changes due to Once-/Twice-Weekly Teriparatide Administration: A Report of Five Cases Using High-Resolution Peripheral Quantitative Computed Tomography.

N. Okimoto, A. Sakai, M. Kawasaki, 2021, Modern rheumatology case reports.

Molecular and Clinical Elucidation of the Mechanism of Action of Steroids in Idiopathic Carpal Tunnel Syndrome

A. Hachisuka, T. Aoki, A. Sakai, 2021, The Journal of bone and joint surgery. American volume.