Abstract
One hundred seventy-five threaded titanium alloy prostheses (TTAP) acetabular cups and 125 cemented cups were evaluated clinically and radiographically at 1 to 3 years postoperatively. The series was statistically different in that there were more women in the cemented group than in the non-cemented group (P less than .001). The cemented group was also older than the threaded group (P less than .001). Pain, ambulation, function, range of motion, and roentgenograms were evaluated in all patients. There were no significant differences in the clinical function of the two groups, but there were fewer radiolucencies in the radiographic analysis of the TTAP group. This may be an artificial difference, since two TTAP acetabular cups were removed for loosening, but none of the cemented cups were removed.
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