Results of conversion total hip prosthesis performed following painful hemiarthroplasty

Fifteen of 18 cases who underwent conversion total hip prosthesis due to pa inful hemiarthroplasty, between 1992 and 1997, were investigated retrospect ively. The 13 (86.6%) women and two (13.4%) men (mean age, 59 years) were f ollowed up for an average of 32 months. Pre-operative and post-operative Ha rris hip scores were 36.4 (28 - 42) and 85.9 (69 - 98), respectively. In al l cases the femoral component had more than 2 mm radiolucency in Gruen zone s I, IV and VII, and five cases had acetabular protrusion; other cases had cartilage erosion. In the last follow-up of conversion total hip prosthesis , there was no radiolucency in either femoral or acetabular components. Com paring our results of conversion total hip prosthesis with primary total hi p prosthesis results for femoral neck fractures in the literature we conclu de that, in elderly patients with femoral neck fractures, primary total hip prosthesis has better results.