Acta Chir Orthop Traumatol Cech. 1995; 62(2):94-98
[Experience with hybrid hip prosthesis walter-motorlet/poldi.].
- Ortopedická klinika IPVZ, Fakultní nemocnice Bulovka, Praha.
In 1987-1992 at the Orthopaedic Clinic IPVZ 108 hybrid endoprostheses of the hip joint, type Walter-Motorlet/Poldi were implanted (non-cemented socket Walter-Motorlet, cemented shank Poldi). The authors submit evaluations of 75 endoprotheses made 2-7 years after surgery (mean follow-up period 3 and a half years). The mean age of the patients was 49 years (range 39-62 years), the most frequent preoperative diagnosis was secondary postdysplastic coxarthrosis (52%), other diagnoses were primary coxarthrosis (24%), idiopathic necrosis of the head of the femur (20%) and posttraumatic coxarthrosis (4%). Genneral evaluation according to Harris revealed excellent results in 6% of the patients and unsatisfactory results in 1% of the patients. Subjective evaluation of the painfulness revealed a painless hip joint in 56%, mild occasional pain was reported by 30% of the patients and mild pain which can be mitigated by aspirin was recorded in 14% of the patients. The prosthesis became loosened in one patient bilaterally - it was a case of poor indication of a total endoprosthesis of the hip joint in a patient with a metabolic disorder and osteopathy. The general incidence of paraarticular ossifications was 17%. Comparison of the results with a similar group of patients with non-cemented total endoprostheses Walter-Motorlet, the results obtained with hybrid total endoprostheses are better from the subjective and objective aspect. Key words: hybrid total endoprosthesis of the hip joint, aseptic loosening.
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