PREMATURE WEAR AND OSTEOLYSIS IN THE ABG UNCEMENTED HIP ARTHROPLASTY

We found the ABG cementless hip has excessive acetabular wear and premature failure due to osteolysis.In 60 patients implanted at mean age 56 years, 66 hips (mean follow up 48 months), 7 were revised and 7 have severe acetabular osteolysis. In some this is entirely asymptomatic. There was significant association with osteolysis, length of follow up and wear but no correlation between wear and acetabular component position, age, liner thickness, and use of ceramic or CoCr heads.We recommend regular lifelong radiological review of these hips and suspension of use of this prosthesis until a wider review is undertaken.