The hydroxyapatite-coated JRI-furlong hip. Outcome in patients under the age of 55 years.

We present the clinical and radiographic outcome of 68 consecutive primary total hip replacements performed in 54 patients under the age of 55 years using a hydroxyapatite-coated femoral component and threaded cup with a modular ceramic head (JRI-Furlong). We reviewed 62 (91%) hips at a median follow-up of 8.8 years (5 to 13.8) after implantation; six (9%) were lost to follow-up. At review there had been four (6%) revisions but only one for aseptic loosening (acetabulum). Radiographic review of the remaining hips did not identify any evidence of femoral or acetabular loosening. The median Harris and Merle d'Aubigné and Postel hip scores were 95.9 (42.7 to 100) and 17 (3 to 18) respectively. The JRI-Furlong hip gives promising functional and radiographic results in young patients in the medium term.

[1]  M. Røkkum,et al.  Total hip replacement with an entirely hydroxyapatite-coated prosthesis: 5 years' follow-up of 94 consecutive hips. , 1999, The Journal of arthroplasty.

[2]  H. J. Clarke,et al.  Stanmore total hip replacement in younger patients: review of a group of patients under 50 years of age at operation. , 1997, The Journal of bone and joint surgery. British volume.

[3]  W. Capello,et al.  Hydroxyapatite in Total Hip Arthroplasty: Clinical Results and Critical Issues , 1998, Clinical orthopaedics and related research.

[4]  D. Hungerford,et al.  Hoop-stress fractures of the proximal femur during hip arthroplasty. Management and results in 19 cases. , 1992, The Journal of bone and joint surgery. British volume.

[5]  R. M. D'aubigne,et al.  Functional results of hip arthroplasty with acrylic prosthesis. , 1954, The Journal of bone and joint surgery. American volume.

[6]  Konstantinos A. Giannikas,et al.  Medium-term results of the ABG total hip arthroplasty in young patients. , 2002, The Journal of arthroplasty.

[7]  B. Espehaug,et al.  The performance of two hydroxyapatite-coated acetabular cups compared with Charnley cups. From the Norwegian Arthroplasty Register. , 2002, The Journal of bone and joint surgery. British volume.

[8]  W. Capello,et al.  Hydroxyapatite coated implants. Total hip arthroplasty in the young patient and patients with avascular necrosis. , 1997, Clinical orthopaedics and related research.

[9]  W. Capello,et al.  Hydroxyapatite femoral stems for total hip arthroplasty: 10- to 13-year followup. , 2001 .

[10]  E. Morris,et al.  The Furlong hydroxyapatite-coated total hip replacement in patients under age 51. A 6-year follow-up study. , 1998, Acta orthopaedica Belgica.

[11]  R.G.T. Geesink,et al.  Hydroxyapatite Femoral Stems for Total Hip Arthroplasty: 10-to 13-Year Followup , 2001, Clinical orthopaedics and related research.

[12]  S. McNally,et al.  The results at nine to twelve years of the use of a hydroxyapatite-coated femoral stem. , 2000, The Journal of bone and joint surgery. British volume.

[13]  L. Sedel.  Long-term results of cemented total hip arthroplasty in patients 45 years old or younger: a 16-year follow-up study. , 1995, The Journal of arthroplasty.

[14]  A. Edidin,et al.  Fixation of Acetabular Cups without Cement in Total Hip Arthroplasty. A Comparison of Three Different Implant Surfaces at a Minimum Duration of Follow-up of Five Years* , 1998, The Journal of bone and joint surgery. American volume.

[15]  The hydroxyapatite-ABG hip system: 5- to 7-year results from an international multicentre study. The International ABG Study Group. , 2000, The Journal of arthroplasty.

[16]  C. Rand,et al.  Heterotopic ossification after uncemented hydroxyapatite-coated primary total hip arthroplasty. , 2001, The Journal of arthroplasty.

[17]  W. Capello,et al.  Hydroxyapatite Coated Stems in Younger and Older Patients With Hip Arthritis , 2002, Clinical orthopaedics and related research.

[18]  B M Wroblewski,et al.  Charnley low-frictional torque arthroplasty in patients under the age of 51 years. Follow-up to 33 years. , 2002, The Journal of bone and joint surgery. British volume.

[19]  D. Scott,et al.  Total hip arthroplasty with hydroxyapatite-coated prostheses. , 1996, The Journal of bone and joint surgery. American volume.

[20]  E. Morris,et al.  The Furlong hydroxyapatite-coated femoral prosthesis. A 4- to 7-year follow-up study. , 1998, Archives of orthopaedic and trauma surgery.

[21]  A. Carr,et al.  Survival analysis in joint replacement surgery. , 1993, The Journal of bone and joint surgery. British volume.

[22]  W. Harris,et al.  Traumatic arthritis of the hip after dislocation and acetabular fractures: treatment by mold arthroplasty. An end-result study using a new method of result evaluation. , 1969, The Journal of bone and joint surgery. American volume.

[23]  D W Murray,et al.  Survival analysis of joint replacements. , 1993, The Journal of bone and joint surgery. British volume.

[24]  Chyun-Yu Yang,et al.  Failure of hydroxyapatite-coated acetabular cups. Ten-year follow-up of 85 Landos Atoll arthroplasties. , 2002, The Journal of bone and joint surgery. British volume.

[25]  B. Wroblewski,et al.  Charnley low-frictional torque arthroplasty in patients under the age of 51 years , 2002 .

[26]  C. Engh,et al.  Femoral fracture during non-cemented total hip arthroplasty. , 1989, The Journal of bone and joint surgery. American volume.

[27]  F. Falez,et al.  Intraoperative type 1 proximal femoral fractures: influence on the stability of hydroxyapatite-coated femoral components. , 1998, The Journal of arthroplasty.

[28]  D. Scott,et al.  Current Concepts Review - Total Hip Arthroplasty with Hydroxyapatite-Coated Prostheses* , 1996 .

[29]  R. Mollan,et al.  A statistical analysis of hip scores. , 1993, The Journal of bone and joint surgery. British volume.

[30]  W. Paprosky,et al.  Extensively coated femoral components in young patients. , 1997, Clinical orthopaedics and related research.

[31]  J. Callaghan,et al.  Total hip arthroplasty in the young adult. , 1997, Clinical orthopaedics and related research.

[32]  H. J. Clarke,et al.  Stanmore Total Hip Replacement In Younger Patients: Review Of A Group Of Patients Under 50 Years Of Age At Operation , 1997 .