Abstract
One of the common problems of total hip arthroplasty (THA) for hip dysplasia is insufficient acetabular bone coverage. We have performed reaming bone grafting (RBG) for acetabular bone defects localized at the superolateral to superior acetabular ridge (outer type). The objective of this study was to evaluate the short-term results of RBG for the outer type.
Eight hips in 8 patients who underwent outer-type RBG for primary THA between January 2012 and January 2013 were included. In 7 of these hips, the bone grafts showed bony incorporation. Only in one hip was the bone graft completely absorbed. The graft survival rate was 87.5%.
RBG is not technically difficult, and makes it easier to achieve bony incorporation than bulky bone grafting. However, in a few cases, the bone grafts are absorbed. One of the most important factors that predicts a good result is initial fixation to obtain rigid cup stability. If the indications are properly chosen, RBG is one of the most useful methods for recovery of acetabular bone stock.
