The Journal of Bone and Joint Surgery (American) 83:1484-1489 (2001)
© 2001 The Journal of Bone and Joint Surgery, Inc.
Uncemented Acetabular Components with Bulk Femoral Head Autograft for Acetabular Reconstruction in Developmental Dysplasia of the Hip
Results at Five to Twelve Years
Mark J. Spangehl, MD, FRCS(C),
Daniel J. Berry, MD,
Robert T. Trousdale, MD and
Miguel E. Cabanela, MD
Investigation performed at the Mayo Clinic, Rochester, Minnesota
Background: Anterolateral acetabular bone deficiency
is one of the technical problems associated with total hip arthroplasty
in patients with developmental hip dysplasia. The purpose of this
study was to evaluate the results of one method of acetabular reconstruction
for hip dysplasiaplacement of an uncemented socket in
conjunction with a bulk femoral head autograft.
Methods: Forty-four hips in thirty-five patients
(twenty-nine female and six male; average age, thirty-nine years)
with developmental hip dysplasia were treated with primary total
hip arthroplasty with use of an uncemented porous-coated titanium
cup fixed with screws and an autogenous bulk femoral head graft.
The patients were followed clinically in a prospective fashion for
five to 12.3 years (mean, 7.5 years), and radiographs were analyzed
retrospectively.
Results: Four acetabular components were revised:
two, because of severe polyethylene wear and osteolysis; one, because
of aseptic loosening; and one, because of fracture of the acetabular
shell. The mean Harris hip score for the unrevised hips improved
from 51 points preoperatively to 91 points postoperatively. No unrevised
socket had definite radiographic evidence of loosening. Forty-three
of the forty-four hips had no radiographic evidence of resorption
of the graft or had radiographic evidence of resorption limited
to the nonstressed area of the graft lateral to the edge of the
cup.
Conclusions: This method of reconstruction provided
reliable acetabular fixation and appeared to restore acetabular
bone stock in patients with developmental hip dysplasia. We use
this technique for patients with moderate anterolateral acetabular
bone deficiency requiring total hip arthroplasty.

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