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
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 ant 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 excessive polyethylene wear was observed in non-deformed femoral canal group. On the acetabular side, nocases 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.
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