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The Basic (IQL-Biomet, Valencia, Spain) hip prosthesis was used in 430 implant procedures, of which 417 had mean follow-up of 6 years. Radiographic follow-up was performed at 1, 3, 6, and 12 months postoperatively, and annually thereafter. The average Harris hip score improved from 35.7 preoperatively to 90.9 postoperatively. Clinical results after 2 years of follow-up showed 6% thigh pain, which decreased to 2% at 6 years. Radiographic evaluation demonstrated 22 cases of calcar resorption, 14% of which had distal pedestal formation. Heterotopic ossification was noted radiographically in 36%. These mid-term results obtained with the Basic prosthesis are similar to the findings of other series and warrant its use.