Extended report
Bilateral hip osteonecrosis: influence of hip size on outcome
Ph Hernigou, J C Lambotte
Service de Chirurgie
Orthopedique, Hôpital Henri Mondor, 51 avenue de Lattre de Tassigny,
94010 Creteil, France
Correspondence to: Professor Hernigou
Accepted for publication 28 March 2000
OBJECTIVE
To measure
the volume of osteonecrosis in 30 patients with disease in both hips
(one side with collapse and the other without at Ficat stage I).
METHOD
The volume of
the osteonecrosis was measured by magnetic resonance imaging.
RESULTS
The
progression to collapse was influenced by the size of the lesion in
each patient. The first collapsed hip was that with the largest volume
of osteonecrosis.
CONCLUSION
The volume
of the osteonecrotic lesion on the second hip (stage I without
collapse) is a good predictor of the time to collapse of this second hip.
© 2000 by Annals of the Rheumatic Diseases
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