• ABSTRACT
    • This study compared proximal femoral bone resorption in hybrid total hip arthroplasty cases that had poor or good contact between the collar and proximal medial femoral neck. A total of 94 patients (102 hips) comprised the study group. Mean patient age was 52 years, and mean follow-up was 4.86 years. Bone resorption of the proximal femur was evaluated with immediate postoperative and follow-up anteroposterior and lateral radiographs. Statistical analysis using the Mann-Whitney test showed no significant difference between the groups that had good or poor contact. The collar did not prevent calcar resorption even when ideal contact was achieved.