We previously reported the average ten-year results associated with the use
of porous-coated noncemented acetabular shells that were placed at a high hip
center at the time of revision total hip arthroplasty in thirty-four patients
(thirty-six hips) with severe acetabular bone loss. We now report the average
16.8-year results for twenty-one patients (twenty-three hips). Of the original
cohort of forty-four patients (forty-six hips), thirty-nine patients
(forty-one hips; 89%) retained the shell. Two shells (4.3%) were revised
because of aseptic loosening, and three (6.5%) were revised because of
infection. Six femoral components were revised because of femoral osteolysis,
and seven were revised because of aseptic loosening without osteolysis. On the
basis of our results after an average duration of follow-up of 16.8 years, we
believe that the placement of an uncemented acetabular component at a high hip
center continues to be an excellent technique for revision total hip
arthroplasty in selected patients with severe acetabular bone loss.
Level of Evidence: Therapeutic Level IV. See Instructions
to Authors for a complete description of levels of evidence.