1. Langzeitergebnisse zu maßgefertigten Femurschäften
- Author
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Charles Pioger, Maxime Fabre-Aubrespy, Jean-Noël Argenson, Xavier Flecher, Christophe Jacquet, Matthieu Ollivier, Institut des Sciences du Mouvement Etienne Jules Marey (ISM), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU)
- Subjects
musculoskeletal diseases ,Adult ,Male ,Reoperation ,medicine.medical_specialty ,Sports medicine ,Arthroplasty, Replacement, Hip ,[SDV]Life Sciences [q-bio] ,Aseptic loosening ,Prosthesis Design ,03 medical and health sciences ,0302 clinical medicine ,Survivorship curve ,medicine ,Humans ,Orthopedics and Sports Medicine ,030212 general & internal medicine ,Femur ,Survivors ,ComputingMilieux_MISCELLANEOUS ,Retrospective Studies ,030222 orthopedics ,business.industry ,Long term results ,Middle Aged ,Confidence interval ,Surgery ,Prosthesis Failure ,Treatment Outcome ,Radiological weapon ,Orthopedic surgery ,Female ,Implant ,Hip Prosthesis ,business ,Follow-Up Studies - Abstract
The progress of 3D imaging and manufacturing of implants has made it possible to achieve a custom-made concept in THA. The custom-made cementless femoral stem provides optimal implant stability combined with restoration of the native hip mechanics. The purpose of this study was to evaluate the long-term survivorship of custom-made hip femoral stems in two populations of patients undergoing THA: patients under 50 years old (young patients group) and patients with high-grade developmental dysplasia of the hip (DDH group). A series of 232 primary custom-made cementless THA stems were retrospectively evaluated in patients less than 50 years old at the time of surgery and at follow-up after an average of 20 years. A second series of 26 custom-made cementless stem THAs for late DDH (21 patients) including only Crowe grade III and grade IV were also retrospectively evaluated with an average follow-up of 16 years. The clinical and radiological evaluations were performed preoperatively and at yearly intervals. For the young patient group, the follow-up ranged from 14 to 27 years. The HHS and the Merle D’Aubigne-Postel score significantly improved from preoperatively to a mean of 94.1 (range 48–100) and 15.9 (range 9–18), respectively. Taking stem revision for aseptic loosening as an endpoint, survivorship was 96.8% at 20 years (95% confidence interval, CI 95.1–98.5). For the DDH group, the follow-up ranged from 10 to 22 years. The mean HHS increased significantly from preoperative 49 ± 22 points to the most recent follow-up examination with 86 13 points and survivorship was 96.1% (95% CI, 92.7–99.9). Custom-made femoral stems provide good functional outcome and long-term survivorship in two specific populations of patients undergoing THAs: patients under 50 years old with high expectations and patients with high-grade DDH.
- Published
- 2020
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