Wear and Migration of Harris-Galante II Acetabular Cups: 29 cases followed for 3–6 years

We performed a 3–6 years radiographic follow-up of 28 patients (29 hips) operated on with a Harris-Galante II uncemented acetabular component and a cemented ScanHip® femoral stem. The patients average age when operated on was 50 (36–59) years. The primary aim was to measure wear of the plastic liner, but migration and radiolucency were also evaluated.

In all hips the mean linear wear rate was 0.17 mm/year and the mean volumetric wear rate was 116 mm³/year. The wear rates in hips with a 28 mm head (n=6) were 0.14 mm/year and 83 mm³/year, and in hips with a 32 mm head (n=22) the rates were 0.18 mm/year and 130 mm³/year. The total volumetric wear was significantly higher in hips with 32 mm head than in hips with a 28 mm head. No acetabular component was radiographically loose, but 3 femoral components were radiographically loose and in need of revision.