TOTAL HIP-REPLACEMENT WITHOUT CEMENT FOR NONINFLAMMATORY OSTEOARTHROSIS IN PATIENTS WHO ARE LESS-THAN 45 YEARS OLD

Forty-two patients (forty-four hips) who, at an age of less than forty -five years, had a total hip replacement without cement for the treatm ent of non-inflammatory osteoarthrosis, were followed for three to sev en years (average, four and one-half years). At the latest follow-up e valuation, thirty-seven hips (84 per cent) had an excellent Harris rat ing; three (7 per cent), good; one (2 per cent), fair; and three (7 pe r cent), poor. The mean Harris hip score was 92 points, compared with 43 points before the operation. Two hips (5 per cent) had a revision d ue to complications. In another hip, there was a progressive radioluce nt line around the femoral component, increased shedding of beads, and a low score for fixation and stability, according to the criteria of Engh et al. We concluded that total hip arthroplasty without cement, a t least for the time-period studied, has a high rate of success for th e management of patients less than forty-five years old who have non-i nflammatory osteoarthrosis of the hip.