Abstract
The authors performed 11 total hip arthroplasties with Kerboull cross shell in 11 patients (1 man and 10 women) from 1998 to 2001. The average age of the patients at the time of operation was 66 years (range, 41-80), and the follow-up intervals were 6-42 months. Acetabular deficiency according to AAOS (American Academy of orthopaedic surgeons classification) was type II for 6 hips, and type III for 5 hips. The types of bone graft were autograft bone in 2 hips, and allograft in 9 hips (with hydroxyapatite particles in 5 of the 9 hips). Full weight-bearing was allowed after 4∼8 weeks in order to stabilize the femoral component. The mean preoperative JOA (Japanese Orthopaedic Association) score was 21 versus 73 at the latest follow-up.
The authors had to bend the pallet of the Kerboull cross shell to adapt to the bone in each case. Loosening and radiolucent line was observed in 1 case of bonenecrosis after radiation therapy for uterine cancer. There was no loosening or radiolucency in the other 10 cases. Our results suggest that bending the pallet of the Kerboull cross shell did not cause problems in these cases, however the follow-up is still short term.
