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Fate of the osteochondral fragments in osteochondritis dissecans after Legg-Calvé-Perthes’ disease

¹ Department of Orthopedics, Chonnam National University Hospital, Hak-dong 8, Gwangju, Korea.

Correspondence should be sent to Dr S. M. Rowe.

The treatment of osteochondritis dissecans after Legg-Calvé-Perthes’disease hasnot been clearly determined. It may be either by simple observation or surgical removal of the osteochondral fragment. We studied the evolution of the lesion in 13 children and reviewed 92 hips reported in the literature. In our patients ten showed a tendency towards spontaneous healing, one required drilling + grafting to obtain fusion, and in two there was separation into the joint. These loose bodies were in the acetabular fossa and caused no symptoms. On reviewing the literature, we found only four cases of hips with loose bodies from osteochondritis dissecans. These were lying in the inferomedial capsule and were also asymptomatic. Treatment of osteochondritis dissecans after Legg-Calvé-Perthes’ disease should therefore be conservative unless the fragment interferes with the mechanics of the hip.