Oct 3, 2006

Thrust plate prosthesis for osteonecrosis of the femoral head: short-term results of 15 patients followed 2-6 years

Journal of Orthopaedic Science : Official Journal of the Japanese Orthopaedic Association
Vasfi KaratosunAlper Gültekin

Abstract

The thrust plate prosthesis is an implant with a metaphyseal fixation at the proximal femur that transmits the load forces of the hip onto the femoral neck. In this prospective study, 15 patients (8 women, 7 men) with 19 cementless thrust plate prostheses because of femoral head necrosis were examined. A clinical and radiologic evaluation was performed preoperatively, at 3, 6, 12, 18, and 24 months postoperatively, and every year thereafter. The mean follow-up period was 44 (range, 24-72) months. The average age at the time of surgery was 49 (27-70) years. The pathogenesis of femoral head necrosis included alcoholism (6 joints of 3 cases), Gaucher disease (1 joint of 1 case), Sheehan syndrome (2 joints of 1 case), and idiopathic (10 joints of 10 cases). The Harris hip score increased from 53 (range, 15-71) to 97 (92-100) points on the final evaluation. Although mean preoperative hip flexion and abduction were 78 degrees (45 degrees -110 degrees ) and 24 degrees (10 degrees -45 degrees ), respectively, these increased to 114 degrees (75 degrees -125 degrees ) and 47 degrees (45 degrees -50 degrees ) 12 months after surgery and remained stable up to the latest follow-up. None of the patients displayed mechanical problems, and rev...Continue Reading

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Citations

Mentioned in this Paper

Aseptic Necrosis of Femur Head
Pathogenic Aspects
Necrosis
Pathogenesis
Bone Plates
Bone Necrosis
Articular System
Abduction
Sample Fixation
Gaucher Disease

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