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
treatment of non-inflammatory osteoarthrosis, were followed for three to
seven years (average, four and one-half years). At the latest follow-up
evaluation, thirty-seven hips (84 per cent) had an excellent Harris rating;
three (7 per cent), good; one (2 per cent), fair; and three (7 per 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 due to
complications. In another hip, there was a progressive radiolucent 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, at least for the
time-period studied, has a high rate of success for the management of
patients less than forty-five years old who have non-inflammatory
osteoarthrosis of the hip.