INCORPORATION OF ALLOGRAFT FOR ACETABULAR RECONSTRUCTION - SINGLE-PHOTON EMISSION CT IN 21 HIP ARTHROPLASTIES FOLLOWED FOR 2.5-5 YEARS

We studied 21 hips in 20 patients who had acetabular reconstruction wi th a femoral head allograft in primary (n 2) and secondary (n 19) tota l hip arthroplasty. The fate of the graft was evaluated by serial bone SPECTs (single photon emission computed tomography). With a mean foll ow-up period of 37 (30-60) months, 14 of the 21 hips showed evidence o f incorporation at earliest 13 (6-18) months after operation. There wa s no correlation between the fate of allograft and the compatibility o f A, B, O blood typing between host and donor, the use of bone cement in the fixation of acetabular component, or loosening of the acetabula r component.