Np. Badhe et Pw. Howard, Partially hydroxyapatite-coated stemmed acetabular cup and nonstructural bone-graft in the management of severe acetabular deficiency, J ARTHROPLA, 15(1), 2000, pp. 63-68
We evaluated the use of a stemmed acetabular cup with morcellized allograft
in the treatment of severe acetabular deficiency requiring reconstruction
at arthroplasty. There were 29 hips, of which 22 were revision operations (
18 aseptic, 4 postinfective) and 7 were complex primary hip replacements. A
ll patients had severe acetabular deficiency as classified by the American
Academy of Orthopaedic Surgeons: type IIB, 3; type ma, 18; type IIIB, 8. Th
e patients had a mean follow-up of 46 months (range, 14-74 months). The hip
center of rotation improved from a mean preoperative, side-to-side differe
nce of 11.5 mm to 2.5 mm postoperatively (P < .001). The medial bone stock
improved from a mean preoperative value of 1.5 mm to 11 mm postoperatively
(P < .001). The Harris Hip Score improved from a mean preoperative score of
42 points to a postoperative score of 84 points (P < .001). There was I ca
se of failure resulting from sepsis. The early results with this method of
reconstruction of severe acetabular deficiency show encouraging restoration
of bone stock, with no cases of aseptic loosening until the last follow-up
.