Abstract
We reviewed the clinical and radiological results of 32-cemented femoral head resurfacing arthroplasty, performed by a single surgeon in 25 patients with femoral head osteonecrosis at a mean age of 36.2 years. All patients received a cemented conserve (Wright Medical Technology Inc., Arlington, TN, USA) femoral hemiresurfacing arthroplasty. Data were complete on 16 patients with 21 hips at a mean follow-up period of 50.8 months. Five patients had bilateral procedures. The Harris hip score, and the Merle d’Aubigné score improved significantly from 54.7 to 72.3 (P = 0.0001), and from 12.1 to 13.9 (P = 0.01), respectively. Seven hips had undergone revision to total hip arthroplasty at the time of follow-up while one hip is scheduled for revision surgery, representing a 38% failure rate. When clinical failure is defined as a Harris Hip Score of less than 70 at follow-up, clinical failure was 81% at 4.25 years.
Résumé
Les auteurs ont revu les résultats cliniques et radiologiques de 32 prothèses de resurfaçage cimentées de la tête fémorale posées par un même chirurgien chez 25 patients souffrant d’ostéonécrose de la tête du fémur et ayant un âge moyen de 63.2 ans. Tous les patients furent traités par la pose d’une arthroplastie de resurfaçage cimentée de type Conserve (Wright Medical Tchnology Inc., Arlington, TN, USA). La documentation a pu être complète chez patients correspondant à 25 hanches et un recul moyen de 50.8 mois. Cinq patients avaient bénéficié d’une arthroplastie bilatérale. Les scores de Harris et de Merle d’Aubigné ont été améliorés respectivement de 54.7 à 72.3 (P = 0.0001) et de 12.1 à 13.9 (P = 0.01). Sept hanches durent être reprises par arthroplastie totale au moment du follow-up et une autre est programmée pour reprise, ce qui fait un taux d’échec de 38%. Si l’on retint comme critère d’échec un score de hanche de Harris inférieur à 70. alors le taux d’échec clinique est de 81% à 4.25 années.
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Belzile, E.L., Raustol, O.A., Mounasamy, V. et al. Femoral head resurfacing in the treatment of osteonecrosis: 3 to 5-year follow-up. Eur J Orthop Surg Traumatol 17, 157–163 (2007). https://doi.org/10.1007/s00590-006-0147-3
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DOI: https://doi.org/10.1007/s00590-006-0147-3