Conical 대퇴 스템을 사용한 무시멘트 인공 고관절 전치환술

Abstract

Purpose: The purpose of this study is to evaluate the clinical and radiological results of the cementless total hip arthroplasty using a conical stem. Materials and Methods: From December 2000 to December 2006, total hip arthroplasty with the conical stem was performed in 36 patients and 41 hips. Minimal follow up period was 5 years and the mean age was 68.2 years (range 22-88years). The causes for the total hip arthroplaty were avascular necrosis(AVN) in 27 cases, degenerative osteoarthritis ini 4 cases, traumatic osteoarthritis in 3 cases, femoral neck fracture in 3 cases, nonunions of trochateric fracture in 3 cases, hip fracture and dislocation 1 case. The clinical results were evaluated using the Harris hip score and according to the pain on inguinal area or thigh. The radiographic evaluation was performed to determine the level of osteolysis and instability around the acetabular cup and the femoral stem. Results: At the most recent follow-up, the mean Harris hip score was 92 points without inguinal or thigh pain. The complications included two cases of transient peroneal nerve palsy caused by postoperative compressive dressing and one case of heterotopic ossification. Radiologically, bone ingrowth was noted in all cases without migration of acetabular and femoral stem, changing of the position, subsidence, loosening or osteolysis. Conculsion: Cementless total hip arthroplasty with the conical femoral stem shows good clinical and radiologic results at minimal 5 years follow up.