S. Nakamura et al., LONG-TERM OUTCOME OF ROTATIONAL ACETABULAR OSTEOTOMY - 145 HIPS FOLLOWED FOR 10-23 YEARS, Acta orthopaedica Scandinavica, 69(3), 1998, pp. 259-265
We report the long-term outcome of rotational acetabular osteotomy in
145 dysplastic hips of 131 patients after an average follow-up of 13 (
10-23) years. The mean age at operation was 28 (11-52) years. The radi
ographic severity of osteoarthrosis before operation, according to the
criteria of the Japanese Orthopaedic Association, was stage I (no deg
enerative change) in 63 hips, stage II (early degenerative stage) in 4
9, stage III (progressive stage) in 21 and stage IV (end stage) in 12.
The clinical outcome based on the Merle d'Aubigne and Postel score wa
s excellent or good for 90 (80%) of the 112 hips which had stage I or
II osteoarthrosis preoperatively, and was excellent or good for only 9
of the 33 hips which had stage III or IV osteoarthrosis (p<0.001, chi
-square test). The radiographic severity of osteoarthrosis at the most
recent review was stage I or II for 79 (70%) of the 112 hips which ha
d stage I or II osteoarthrosis preoperatively. The long-term outcome o
f rotational acetabular osteotomy was satisfactory for a dysplastic hi
p with little, if any, osteoarthrosis, but was unsatisfactory for a hi
p with more advanced osteoarthrosis.