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Biomedical subjects

R M Kay

Publications and source records attributed to R M Kay.

92 records · Page 6Linked to original sources
PubMedDate not supplied

Variability in measurement of acetabular index in normal and dysplastic hips, before and after reduction.

This study examined the variability in the measurement of the acetabular index (AI) in normal and dysplastic hips, both before and after reduction. This variability for dysplastic hips is greater than that of normal hips. The variability is greater before an open or closed reduction than after reduction, and the variability after an open reduction is nearly 3 times greater than after a closed reduction. The 95% confidence interval of the AI is 10.1 degrees intraobserver and 21.9 degrees interobserver for all hips. The AI is most accurate in the situation in which it is most useful, after a closed reduction of a dysplastic hip. A 95% confidence interval of 5.1 degrees in this selected population supports the use of the AI for monitoring acetabular remodeling after closed reductions in accordance with previous clinical recommendations.

Acetabulum↗
PubMedDate not supplied

Late metachronous involvement of the contralateral hip in Legg-Calvé-Perthes disease.

Bilateral hip involvement in Legg-Calvé-Perthes disease occurs in approximately 10-13% of cases. Although both synchronous and metachronous involvement of the two hips have been described, metachronous involvement is rare and generally occurs within 6 months to 4 years of initial diagnosis. We report the cases of two patients diagnosed with late metachronous involvement of the contralateral hip 8.5 and 9.8 years after initial presentation. This is later than previously reported metachronous involvement in Legg-Calvé-Perthes disease and emphasizes that patients with Legg-Calvé-Perthes disease may be at prolonged risk for recurrent disease.

Child, Preschool↗