Abstract
We have performed 30 Total Hip Arthroplasties in 28 cases since 1992. We were able to follow 26 cases and 28 hips (cemented; 13 cases 14 hips, uncemented 13 cases, 14 hips). The mean length of follow-up was 28.9 months (range, 13 to 52 months). Femoral side radiographic assessment showed good fixation and stability in all cemented THAs, and 12 Bone ingrown and 2 Bone ingrowth suspected in uncemented THAs, when Engh's Fixation/Stability Score was adjusted. The mean postoperative JOA score was 76.1 for the cemented group and 79.1 for the uncemented group. The pain score was superior in the cemented group to the uncemented group, and the walking and activity score were superior in the uncemented group to the cemented group. Thigh pain was detected in 5 hips (4 cases) for the uncemented group (35.8 per cent), and in 2 hips for the cemented group (14.3 per cent), although the result was not statically significant. There seem to be some cases which develop thigh pain in the uncemented THAs, although rigidly fixed bone ingowth is recognized on the radiographs, probably due to uneven load transfer from the prosthesis to the bone.
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