Multifactorial Tendon Tissue Engineering Strategies

The tendon is a simple yet highly specialized tissue within the body, the function of which as a transmitter and dampener of forces between muscle and bone, is highly dependent upon its structure. Once this structure is damaged it will never be the same again, predisposing to more injury, and ultimately causing significant morbidity. Tissue engineering strategies can help to address this. Through the combination of cells, scaffolds, and mechanical stimulation, neotendon tissue can be created in vitro and used to help restore function in vivo. This chapter analyzes each of these in turn and then focuses on the approaches used for the flexor, Achilles, rotator cuff, and patellar tendons, and the creation of custom bioreactors to aid tendon development is also reviewed.

[1]  A. Scott,et al.  Enhanced collagen type I synthesis by human tenocytes subjected to periodic in vitro mechanical stimulation , 2014, BMC Musculoskeletal Disorders.

[2]  A. Carr,et al.  Development of a refined tenocyte expansion culture technique for tendon tissue engineering , 2014, Journal of tissue engineering and regenerative medicine.

[3]  Yin Mei Wong,et al.  Tendon‐derived stem cells (TDSCs) promote tendon repair in a rat patellar tendon window defect model , 2012, Journal of orthopaedic research : official publication of the Orthopaedic Research Society.

[4]  T. B. Kirk,et al.  Programmable mechanical stimulation influences tendon homeostasis in a bioreactor system , 2013, Biotechnology and bioengineering.

[5]  H. Im,et al.  Repetitive mechanical stretching modulates IL-1beta induced COX-2, MMP-1 expression, and PGE2 production in human patellar tendon fibroblasts. , 2005, Gene.

[6]  K. An,et al.  Repopulation of intrasynovial flexor tendon allograft with bone marrow stromal cells: an ex vivo model. , 2013, Tissue engineering. Part A.

[7]  J. Suh,et al.  Application of chitosan-based polysaccharide biomaterials in cartilage tissue engineering: a review. , 2000, Biomaterials.

[8]  T. Young,et al.  Effects of Cyclic Mechanical Stretching on the mRNA Expression of Tendon/Ligament-Related and Osteoblast-Specific Genes in Human Mesenchymal Stem Cells , 2008, Connective tissue research.

[9]  Shin-Ichiro Nishimura,et al.  Alginate and chitosan polyion complex hybrid fibers for scaffolds in ligament and tendon tissue engineering , 2005, Journal of orthopaedic science : official journal of the Japanese Orthopaedic Association.

[10]  D. Butler,et al.  In vitro characterization of mesenchymal stem cell-seeded collagen scaffolds for tendon repair: effects of initial seeding density on contraction kinetics. , 2000, Journal of biomedical materials research.

[11]  Stephen F. Badylak,et al.  The Effect of Range of Motion on Remodeling of Small Intestinal Submucosa (SIS) When Used as an Achilles Tendon Repair Material in the Rabbit , 1997 .

[12]  I. Heschel,et al.  Human preadipocytes seeded on freeze-dried collagen scaffolds investigated in vitro and in vivo. , 2001, Biomaterials.

[13]  W. Liu,et al.  Repair of tendon defect with dermal fibroblast engineered tendon in a porcine model. , 2006, Tissue engineering.

[14]  Lawrence V. Gulotta,et al.  Application of Bone Marrow-Derived Mesenchymal Stem Cells in a Rotator Cuff Repair Model , 2009, The American journal of sports medicine.

[15]  I. Lo,et al.  Cuff integrity after arthroscopic versus open rotator cuff repair: a prospective study. , 2006, Journal of shoulder and elbow surgery.

[16]  D. Lindsey,et al.  Flexor Tendon Tissue Engineering: Acellularized and Reseeded Tendon Constructs , 2009, Plastic and reconstructive surgery.

[17]  S. Arnoczky,et al.  In vitro alterations in cytoskeletal tensional homeostasis control gene expression in tendon cells , 2005, Journal of orthopaedic research : official publication of the Orthopaedic Research Society.

[18]  K. Xin,et al.  Tendon healing in vitro: bFGF gene transfer to tenocytes by adeno-associated viral vectors promotes expression of collagen genes. , 2005, The Journal of hand surgery.

[19]  Min Li,et al.  In vitro and in vivo research on using Antheraea pernyi silk fibroin as tissue engineering tendon scaffolds , 2009 .

[20]  Akio Minami,et al.  Application of Tissue Engineering Techniques for Rotator Cuff Regeneration Using a Chitosan-Based Hyaluronan Hybrid Fiber Scaffold , 2005, The American journal of sports medicine.

[21]  Yilin Cao,et al.  The regulation of phenotype of cultured tenocytes by microgrooved surface structure. , 2010, Biomaterials.

[22]  Marian F Young,et al.  Identification of tendon stem/progenitor cells and the role of the extracellular matrix in their niche , 2007, Nature Medicine.

[23]  Natalia Juncosa-Melvin,et al.  Mechanical stimulation of tissue engineered tendon constructs: effect of scaffold materials. , 2007, Journal of biomechanical engineering.

[24]  Younan Xia,et al.  Nanofiber scaffolds with gradations in mineral content for mimicking the tendon-to-bone insertion site. , 2009, Nano letters.

[25]  P. Simonian,et al.  Semitendinosus Augmentation of Acute Patellar Tendon Repair with immediate Mobilization , 1995, The American journal of sports medicine.

[26]  Sotirios Korossis,et al.  The use of ultrasonication to aid recellularization of acellular natural tissue scaffolds for use in anterior cruciate ligament reconstruction. , 2007, Tissue engineering.

[27]  Natalia Juncosa-Melvin,et al.  Mechanical stimulation of tendon tissue engineered constructs: effects on construct stiffness, repair biomechanics, and their correlation. , 2007, Journal of biomechanical engineering.

[28]  J. Wang,et al.  Platelet-Rich Plasma Releasate Promotes Differentiation of Tendon Stem Cells into Active Tenocytes , 2010, The American journal of sports medicine.

[29]  D. Lindsey,et al.  Tissue engineering of flexor tendons: the effect of a tissue bioreactor on adipoderived stem cell-seeded and fibroblast-seeded tendon constructs. , 2010, The Journal of hand surgery.

[30]  Whitney Bullock,et al.  Tenogenic differentiation of human MSCs induced by the topography of electrochemically aligned collagen threads. , 2012, Biomaterials.

[31]  C. Court-Brown,et al.  The epidemiology of musculoskeletal tendinous and ligamentous injuries. , 2008, Injury.

[32]  Natalia Juncosa-Melvin,et al.  Effect of scaffold material, construct length and mechanical stimulation on the in vitro stiffness of the engineered tendon construct. , 2008, Journal of biomechanics.

[33]  Marco Patruno,et al.  Successful recellularization of human tendon scaffolds using adipose‐derived mesenchymal stem cells and collagen gel , 2014, Journal of tissue engineering and regenerative medicine.

[34]  Milan Stevanovic,et al.  Reconstruction of large rotator cuff tendon defects with porcine small intestinal submucosa in an animal model. , 2006, Journal of shoulder and elbow surgery.

[35]  V. Denaro,et al.  Adhesion and collagen production of human tenocytes seeded on degradable poly(urethane urea) , 2013, Knee Surgery, Sports Traumatology, Arthroscopy.

[36]  Chunfeng Zhao,et al.  Surface Treatment of Flexor Tendon Autograft and Allograft Decreases Adhesion Without an Effect of Graft Cellularity: A Pilot Study , 2012, Clinical orthopaedics and related research.

[37]  J. Iannotti,et al.  Improved time-zero biomechanical properties using poly-L-lactic acid graft augmentation in a cadaveric rotator cuff repair model. , 2010, Journal of shoulder and elbow surgery.

[38]  Natalia Juncosa-Melvin,et al.  The effect of autologous mesenchymal stem cells on the biomechanics and histology of gel-collagen sponge constructs used for rabbit patellar tendon repair. , 2006, Tissue engineering.

[39]  James Chang,et al.  Tissue engineered intrasynovial tendons: in vivo graft survival and tensile strength , 2010, European Journal of Plastic Surgery.

[40]  D. Butler,et al.  Improving linear stiffness of the cell-seeded collagen sponge constructs by varying the components of the mechanical stimulus. , 2008, Tissue engineering. Part A.

[41]  Gil Navon,et al.  Neotendon formation induced by manipulation of the Smad8 signalling pathway in mesenchymal stem cells. , 2006, The Journal of clinical investigation.

[42]  Mitsuo Ochi,et al.  Rotator Cuff Regeneration Using a Bioabsorbable Material With Bone Marrow–Derived Mesenchymal Stem Cells in a Rabbit Model , 2012, The American journal of sports medicine.

[43]  A. Mauro,et al.  Indirect Co-Culture with Tendons or Tenocytes Can Program Amniotic Epithelial Cells towards Stepwise Tenogenic Differentiation , 2012, PloS one.

[44]  Bin Wang,et al.  Engineering of extensor tendon complex by an ex vivo approach. , 2008, Biomaterials.

[45]  Eric A Nauman,et al.  Mechanical characterization of collagen fibers and scaffolds for tissue engineering. , 2003, Biomaterials.

[46]  Zi Yin,et al.  Stepwise Differentiation of Human Embryonic Stem Cells Promotes Tendon Regeneration by Secreting Fetal Tendon Matrix and Differentiation Factors , 2009, Stem cells.

[47]  Joseph Bernstein,et al.  Fiber-aligned polymer scaffolds for rotator cuff repair in a rat model. , 2012, Journal of shoulder and elbow surgery.

[48]  Natalia Juncosa-Melvin,et al.  Effects of cell-to-collagen ratio in mesenchymal stem cell-seeded implants on tendon repair biomechanics and histology. , 2005, Tissue engineering.

[49]  Y. Yang,et al.  Chitosan microchannel scaffolds for tendon tissue engineering characterized using optical coherence tomography. , 2007, Tissue engineering.

[50]  J. Tibone,et al.  Six-month magnetic resonance imaging follow-up of large and massive rotator cuff repairs reinforced with porcine small intestinal submucosa. , 2004, Journal of shoulder and elbow surgery.

[51]  João L. Ellera Gomes,et al.  Conventional rotator cuff repair complemented by the aid of mononuclear autologous stem cells , 2011, Knee Surgery, Sports Traumatology, Arthroscopy.

[52]  James Chang,et al.  Human Flexor Tendon Tissue Engineering: In Vivo Effects of Stem Cell Reseeding , 2013, Plastic and reconstructive surgery.

[53]  Christian M. Puttlitz,et al.  Augmentation of a Rotator Cuff Suture Repair Using rhPDGF-BB and a Type I Bovine Collagen Matrix in an Ovine Model , 2011, The American journal of sports medicine.

[54]  Younan Xia,et al.  "Aligned-to-random" nanofiber scaffolds for mimicking the structure of the tendon-to-bone insertion site. , 2010, Nanoscale.

[55]  A. Mobasheri,et al.  Three‐dimensional high‐density co‐culture with primary tenocytes induces tenogenic differentiation in mesenchymal stem cells , 2011, Journal of orthopaedic research : official publication of the Orthopaedic Research Society.

[56]  Guanbin Song,et al.  RhoA/ROCK, cytoskeletal dynamics, and focal adhesion kinase are required for mechanical stretch‐induced tenogenic differentiation of human mesenchymal stem cells , 2012, Journal of cellular physiology.

[57]  S. Woo,et al.  The Marshall R. Urist Young Investigator Award , 1997 .

[58]  Yan Wang,et al.  Engineered scaffold-free tendon tissue produced by tendon-derived stem cells. , 2013, Biomaterials.

[59]  Beng Hai Lim,et al.  Bone marrow-derived mesenchymal stem cells influence early tendon-healing in a rabbit achilles tendon model. , 2007, The Journal of bone and joint surgery. American volume.

[60]  M. Demange,et al.  Patellar Tendon Healing With Platelet-Rich Plasma , 2012, The American journal of sports medicine.

[61]  S. Snyder,et al.  Histologic evaluation of a biopsy specimen obtained 3 months after rotator cuff augmentation with GraftJacket Matrix. , 2009, Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association.

[62]  Siew Lok Toh,et al.  The interaction between a combined knitted silk scaffold and microporous silk sponge with human mesenchymal stem cells for ligament tissue engineering. , 2008, Biomaterials.

[63]  G. Murrell,et al.  Restore orthobiologic implant: not recommended for augmentation of rotator cuff repairs. , 2007, The Journal of bone and joint surgery. American volume.

[64]  Rocky S Tuan,et al.  Mechanoactive tenogenic differentiation of human mesenchymal stem cells. , 2008, Tissue engineering. Part A.

[65]  Akio Minami,et al.  Rotator cuff regeneration using chitin fabric as an acellular matrix. , 2006, Journal of shoulder and elbow surgery.

[66]  Brian J Cole,et al.  Rotator cuff repair augmentation using a novel polycarbonate polyurethane patch: preliminary results at 12 months' follow-up. , 2011, Journal of shoulder and elbow surgery.

[67]  K. Yamakoshi,et al.  Reconstruction of a defect of the rotator cuff with polytetrafluoroethylene felt graft. Recovery of tensile strength and histocompatibility in an animal model. , 2003, The Journal of bone and joint surgery. British volume.

[68]  Xiumei Mo,et al.  The effect of mechanical stimulation on the maturation of TDSCs-poly(L-lactide-co-e-caprolactone)/collagen scaffold constructs for tendon tissue engineering. , 2014, Biomaterials.

[69]  Joseph W Freeman,et al.  Anterior cruciate ligament regeneration using braided biodegradable scaffolds: in vitro optimization studies. , 2005, Biomaterials.

[70]  James Chang,et al.  Human flexor tendon tissue engineering: decellularization of human flexor tendons reduces immunogenicity in vivo. , 2012, Tissue engineering. Part A.

[71]  Feng Xu,et al.  In vitro tendon engineering with avian tenocytes and polyglycolic acids: a preliminary report. , 2006, Tissue engineering.

[72]  J. Iannotti,et al.  Scaffold devices for rotator cuff repair. , 2012, Journal of shoulder and elbow surgery.

[73]  Shin-Ichiro Nishimura,et al.  Novel chitosan-based hyaluronan hybrid polymer fibers as a scaffold in ligament tissue engineering. , 2005, Journal of biomedical materials research. Part A.

[74]  Min Jung Song,et al.  Characterization of porous collagen/hyaluronic acid scaffold modified by 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide cross-linking. , 2002, Biomaterials.

[75]  David Zurakowski,et al.  Preclinical regulatory validation of an engineered diaphragmatic tendon made with amniotic mesenchymal stem cells. , 2011, Journal of pediatric surgery.

[76]  S. Lohmander,et al.  Variations in cellular proliferation and matrix synthesis in intrasynovial and extrasynovial tendons: an in vitro study in dogs. , 1994, The Journal of hand surgery.

[77]  Rocky S Tuan,et al.  Enhancement of tenogenic differentiation of human adipose stem cells by tendon-derived extracellular matrix. , 2013, Biomaterials.

[78]  N. Tran,et al.  Effect of uniaxial stretching on rat bone mesenchymal stem cell: Orientation and expressions of collagen types I and III and tenascin‐C , 2008, Cell biology international.

[79]  K. An,et al.  Multilayer tendon slices seeded with bone marrow stromal cells: A novel composite for tendon engineering , 2009, Journal of orthopaedic research : official publication of the Orthopaedic Research Society.

[80]  Orr Limpisvasti,et al.  The effect of recombinant human platelet-derived growth factor BB-coated sutures on rotator cuff healing in a sheep model. , 2010, Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association.

[81]  S. Teoh,et al.  Knitted poly-lactide-co-glycolide scaffold loaded with bone marrow stromal cells in repair and regeneration of rabbit Achilles tendon. , 2003, Tissue engineering.

[82]  Jonas Rubenson,et al.  Bioreactor design for tendon/ligament engineering. , 2013, Tissue engineering. Part B, Reviews.

[83]  Yilin Cao,et al.  Engineering human neo-tendon tissue in vitro with human dermal fibroblasts under static mechanical strain. , 2009, Biomaterials.

[84]  V. Sikavitsas,et al.  Tendon tissue engineering using cell-seeded umbilical veins cultured in a mechanical stimulator. , 2009, Tissue engineering. Part A.

[85]  Umile Giuseppe Longo,et al.  Platelet-Rich Plasma Augmentation for Arthroscopic Rotator Cuff Repair , 2011, The American journal of sports medicine.

[86]  H. Christ,et al.  Tenogenic differentiation of equine adipose-tissue-derived stem cells under the influence of tensile strain, growth differentiation factors and various oxygen tensions , 2013, Cell and Tissue Research.

[87]  Masatoshi Sato,et al.  Reconstruction of rabbit Achilles tendon with three bioabsorbable materials: histological and biomechanical studies , 2000, Journal of orthopaedic science : official journal of the Japanese Orthopaedic Association.

[88]  Jiake Xu,et al.  Porcine small intestine submucosa (SIS) is not an acellular collagenous matrix and contains porcine DNA: possible implications in human implantation. , 2005, Journal of biomedical materials research. Part B, Applied biomaterials.

[89]  D. Docheva,et al.  Collagen type I and decorin expression in tenocytes depend on the cell isolation method , 2012, BMC Musculoskeletal Disorders.

[90]  M. Herbert,et al.  Ultimate tensile failure loads of a human dermal allograft rotator cuff augmentation. , 2008, Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association.

[91]  E. Hackett,et al.  Comparison of Achilles tendon repair techniques in a sheep model using a cross-linked acellular porcine dermal patch and platelet-rich plasma fibrin matrix for augmentation. , 2010, The Journal of foot and ankle surgery : official publication of the American College of Foot and Ankle Surgeons.

[92]  Lawrence V. Gulotta,et al.  Bone Marrow–Derived Mesenchymal Stem Cells Transduced With Scleraxis Improve Rotator Cuff Healing in a Rat Model , 2011, The American journal of sports medicine.

[93]  Iñigo Mujika,et al.  Comparison of Surgically Repaired Achilles Tendon Tears Using Platelet-Rich Fibrin Matrices , 2007, The American journal of sports medicine.

[94]  S. Gambhir,et al.  Human flexor tendon tissue engineering: revitalization of biostatic allograft scaffolds. , 2012, Tissue engineering. Part A.

[95]  D. Butler,et al.  Repair of patellar tendon injuries using a cell–collagen composite , 2003, Journal of orthopaedic research : official publication of the Orthopaedic Research Society.

[96]  Siew Lok Toh,et al.  A bFGF-releasing silk/PLGA-based biohybrid scaffold for ligament/tendon tissue engineering using mesenchymal progenitor cells. , 2010, Biomaterials.

[97]  Hicham Drissi,et al.  Rapid Isolation of Human Stem Cells (Connective Tissue Progenitor Cells) From the Proximal Humerus During Arthroscopic Rotator Cuff Surgery , 2010, The American journal of sports medicine.

[98]  N. Maffulli,et al.  Prevention of adhesions in surgery of the flexor tendons of the hand: what is the evidence? , 2009, British medical bulletin.

[99]  Ashish Kapoor,et al.  Microtopographically patterned surfaces promote the alignment of tenocytes and extracellular collagen. , 2010, Acta biomaterialia.

[100]  Sambit Sahoo,et al.  Development of hybrid polymer scaffolds for potential applications in ligament and tendon tissue engineering , 2007, Biomedical materials.

[101]  Masataka Deie,et al.  Tendon-Bone Insertion Repair and Regeneration Using Polyglycolic Acid Sheet in the Rabbit Rotator Cuff Injury Model , 2008, The American journal of sports medicine.

[102]  K. An,et al.  Biomimetic modification of the gliding surface of extrasynovial tendon , 2006 .

[103]  G. M. Lepow,et al.  Reconstruction of a neglected achilles tendon rupture with an achilles tendon allograft: A case report. , 2006, The Journal of foot and ankle surgery : official publication of the American College of Foot and Ankle Surgeons.

[104]  S. Snyder,et al.  Arthroscopic replacement of massive, irreparable rotator cuff tears using a GraftJacket allograft: technique and preliminary results. , 2008, Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association.

[105]  Sachin P Badhe,et al.  An assessment of porcine dermal xenograft as an augmentation graft in the treatment of extensive rotator cuff tears. , 2008, Journal of shoulder and elbow surgery.

[106]  William N Levine,et al.  Scaffold fiber diameter regulates human tendon fibroblast growth and differentiation. , 2013, Tissue engineering. Part A.

[107]  Zi Yin,et al.  Ligament regeneration using a knitted silk scaffold combined with collagen matrix. , 2008, Biomaterials.

[108]  A. Yam,et al.  Synovial cell culture and tissue engineering of a tendon synovial cell biomembrane. , 2008, Journal of biomedical materials research. Part A.

[109]  M. Dunn,et al.  Development of cell-seeded patellar tendon allografts for anterior cruciate ligament reconstruction. , 2004, Tissue engineering.

[110]  Bin Wang,et al.  Enhanced proliferation capacity of porcine tenocytes in low O2 tension culture , 2010, Biotechnology Letters.

[111]  A. Castagna,et al.  In vitro study comparing two collageneous membranes in view of their clinical application for rotator cuff tendon regeneration , 2007, Journal of orthopaedic research : official publication of the Orthopaedic Research Society.

[112]  L. Qin,et al.  Effects of basic fibroblast growth factor (bFGF) on early stages of tendon healing: A rat patellar tendon model , 2000, Acta orthopaedica Scandinavica.

[113]  Daniel K. Lee Achilles tendon repair with acellular tissue graft augmentation in neglected ruptures. , 2007, The Journal of foot and ankle surgery : official publication of the American College of Foot and Ankle Surgeons.

[114]  Hollis G Potter,et al.  Biologic augmentation of rotator cuff tendon-healing with use of a mixture of osteoinductive growth factors. , 2007, The Journal of bone and joint surgery. American volume.

[115]  D. Butler,et al.  Use of mesenchymal stem cells in a collagen matrix for achilles tendon repair , 1998, Journal of orthopaedic research : official publication of the Orthopaedic Research Society.

[116]  Gavin C. Jones,et al.  Cyclical strain modulates metalloprotease and matrix gene expression in human tenocytes via activation of TGFβ☆ , 2013, Biochimica et biophysica acta.

[117]  Y. Morita,et al.  Determination of optimal cyclic uniaxial stretches for stem cell-to-tenocyte differentiation under a wide range of mechanical stretch conditions by evaluating gene expression and protein synthesis levels. , 2013, Acta of bioengineering and biomechanics.

[118]  G. Murrell,et al.  Early Inflammatory Reaction after Rotator Cuff Repair with a Porcine Small Intestine Submucosal Implant , 2005, The American journal of sports medicine.

[119]  D. Docheva,et al.  Conversion of human bone marrow-derived mesenchymal stem cells into tendon progenitor cells by ectopic expression of scleraxis. , 2012, Stem cells and development.

[120]  L. Yao,et al.  Phenotypic drift in human tenocyte culture. , 2006, Tissue engineering.

[121]  S. Badylak,et al.  The use of xenogeneic small intestinal submucosa as a biomaterial for Achilles tendon repair in a dog model. , 1995, Journal of biomedical materials research.

[122]  Young Ha Kim,et al.  Regeneration of Achilles' Tendon: The Role of Dynamic Stimulation for Enhanced Cell Proliferation and Mechanical Properties , 2010, Journal of biomaterials science. Polymer edition.

[123]  Ian Wimpenny,et al.  The application of poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) scaffolds for tendon repair in the rat model. , 2013, Biomaterials.

[124]  A. Carr,et al.  Tensile and shear mechanical properties of rotator cuff repair patches. , 2012, Journal of shoulder and elbow surgery.

[125]  Sumant G. Krishnan,et al.  Use of Graft Jacket as an Augmentation for Massive Rotator Cuff Tears , 2007 .

[126]  Joel D Stitzel,et al.  Co-electrospun dual scaffolding system with potential for muscle-tendon junction tissue engineering. , 2011, Biomaterials.

[127]  A. R. Baker,et al.  Commercial extracellular matrix scaffolds for rotator cuff tendon repair. Biomechanical, biochemical, and cellular properties. , 2006, The Journal of bone and joint surgery. American volume.

[128]  A. Deutsch,et al.  A prospective, randomized evaluation of acellular human dermal matrix augmentation for arthroscopic rotator cuff repair. , 2012, Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association.

[129]  Brian C. Pridgen,et al.  Flexor tendon tissue engineering: acellularization of human flexor tendons with preservation of biomechanical properties and biocompatibility. , 2011, Tissue engineering. Part C, Methods.

[130]  M. Tsukada,et al.  Attachment and growth of fibroblast cells on silk fibroin. , 1995, Biochemical and biophysical research communications.

[131]  S. Milz,et al.  Tenocytes of chronic rotator cuff tendon tears can be stimulated by platelet-released growth factors. , 2013, Journal of shoulder and elbow surgery.

[132]  Natalia Juncosa-Melvin,et al.  Combined effects of scaffold stiffening and mechanical preconditioning cycles on construct biomechanics, gene expression, and tendon repair biomechanics. , 2009, Tissue engineering. Part A.

[133]  T. A. Marberry A Synthetic Reinforcement Patch in Repair of Challenging Two-Tendon Rotator Cuff Tears , 2013 .

[134]  Zi Yin,et al.  The regulation of tendon stem cell differentiation by the alignment of nanofibers. , 2010, Biomaterials.

[135]  Robert A. Brown,et al.  In situ monitoring of tendon structural changes by elastic scattering spectroscopy: correlation with changes in collagen fibril diameter and crimp. , 2006, Tissue engineering.

[136]  A Minami,et al.  Chitosan-based hyaluronan hybrid polymer fibre scaffold for ligament and tendon tissue engineering , 2007, Proceedings of the Institution of Mechanical Engineers. Part H, Journal of engineering in medicine.

[137]  G. Prestwich,et al.  Prevention of peritendinous adhesions using a hyaluronan‐derived hydrogel film following partial‐thickness flexor tendon injury , 2008, Journal of orthopaedic research : official publication of the Orthopaedic Research Society.

[138]  F. Jakob,et al.  BMP12 and BMP13 gene transfer induce ligamentogenic differentiation in mesenchymal progenitor and anterior cruciate ligament cells. , 2010, Cytotherapy.

[139]  Ivan Martin,et al.  Advanced bioreactor with controlled application of multi-dimensional strain for tissue engineering. , 2002, Journal of biomechanical engineering.

[140]  J. Iannotti,et al.  Porcine Small Intestine Submucosa as a Flexor Tendon Graft , 2004, Clinical orthopaedics and related research.

[141]  J. Goh,et al.  Characterization of a novel polymeric scaffold for potential application in tendon/ligament tissue engineering. , 2006, Tissue engineering.

[142]  Russell F Warren,et al.  The Effect of Platelet-Rich Fibrin Matrix on Rotator Cuff Tendon Healing , 2012, The American journal of sports medicine.