Abstract
A retrospective study was undertaken to evaluate the clinical and radiographic outcomes of 74 cementless total hip arthroplasties (THA) in 69 young Chinese patients. The Asian size and MMA AML stems with smoothly tapered tip were used, and the patients were followed up for at least five years. The mean Harris hip score was 45.4 preoperatively and 95.3 at the last follow-up. The incidence of thigh pain was 5.4%, and was related to the short stature of the patient (<160 cm) (P = 0.030). Six patients (6 hips, 8.1%) had acetabular osteolysis in zone 2; reoperation was performed in one patient because of osteolysis and wear of the polyethylene liner. The survival rate of the metal acetabular and femoral components was 100% (95% confidence interval, 0.95–1.0). Primary THA with this AML prosthesis had an acceptable mid-term result in young Chinese patients.
Résumé
Cette étude rétrospective a pour but d’évaluer sur le plan clinique et radiographique le devenir de 74 prothèses de hanche sans ciment posées chez 69 jeunes patients d’origine chinoise. une taille de type asiatique et une pièce fémorale de type MMA AML avec un revêtement de surface discret a été utilisé chez nos patients. Ces patients ont été suivis durant au moins 5 ans. Le score moyen de Harris était de 45,4 en préopératoire et de 95,3 au dernier suivi. Le taux de douleur de cuisse était de 5,4% et ce taux était en rapport avec la petite taille des patients (< à 1m60 p = 0,030). 6 patients (6 hanches, 8,1%) présentaient une ostéolyse acétabulaire en zone 2, une réintervention a été nécessaire chez un patient du fait de cette ostéolyse et d’une usure de l’insert polyéthylène. Le taux de survie du composant de la pièce fémorale et du composant métallique acétabulaire est de 100% (95% intervalle de confiance, 0,95–1,0). les prothèses totales de hanche primaire de type AML ont une bonne tolérance à moyen terme chez les jeunes patients d’origine chinoise.
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Qiu, X., Yang, J., Shen, B. et al. Mid-term results using a cementless hip prosthesis in young Chinese patients: a five- to seven-year follow-up study. International Orthopaedics (SICOT) 33, 1507–1512 (2009). https://doi.org/10.1007/s00264-008-0705-x
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DOI: https://doi.org/10.1007/s00264-008-0705-x