Hybrid형 인공 고관절 전치환 성형술의 3-5년 추시 결과 = 3-5 Year Results of Hybrid Total Hip Arthroplasty

다국어 초록 (Multilingual Abstract)

Forty-three patients(forty-six hips), who underwent hybrid total hip arthroplasties with a cemented femoral component and a noncemented acetabular component between November 1991 to March 1993, were followed for a minimum of three years(mean, 44 months). The purpose of this retrospective follow-up study is to obtain the short-term results and to analyze and to compare the clinical and radiological findings in two groups of the patients: the one group has 25 hips with non-deformed femoral canals(male in 19 hips) and the other group has 21 hips with deformed femoral canals(male in 15 hips). The average age of the patients at operation was 61 years(52-78 years) in non-deformed femoral canal group and 51 years(31-72 years) in deformed femoral canal group. The operation had been performed by a single surgeon(J-M Lee) using transgluteal or transtrochanteric approach. Clinically, the average Harris hip score at the last follow-up was 98 points in non-deformed and 89 points in deformed femoral canal group. One hip failed because of the late infection and was revised with two-stage method, who is now walking well without any complaint of pain or the recurrence of infection. No patient had moderate to severe pain or limping. Radiologically, one hip had radiolucent line on the whole zones of Gruen because of the reactivation of quiescent tuberculosis of the hip joint, who had been treated by currettage of soft tissues without removal of the implants and longterm medication of the anti-tuberculous drugs. One hip of excessive polyethylene wear was observed in non-deformed femoral canal group. On the acetabular side, no case showed radiolucent line around the whold three zones of De Lee and Chanley. Although we obtained relatively good short-term results even in a young age group and in the patients with deformed femoral canals, the long term follow-up is mandatory for correct evaluation.