OBJECTIVE. The purpose of this study was to determine the efficacy of sonog
raphy for revealing osteochondritis dissecans of the humeral capitellum.
SUBJECTS AND METHODS. Twenty-seven patients with capitellar osteochondritis
dissecans (27 males; range, 11-20 years; mean age, 14 years) underwent rad
iography and sonography performed with a 7.5-MHz mechanical sector probe. L
esions were assessed as stable or unstable. The sonographic assessment was
compared with radiographic assessment in 27 patients, MR assessment obtaine
d in 10, and surgical findings in 15.
RESULTS. Sonographic assessment agreed with radiographic assessment in 23 o
f the 27 patients, MR assessment in nine of the 10, and surgical findings i
n 14 of the 15. Sonography revealed that two lesions, which had been undere
stimated on radiography, were unstable.
CONCLUSION. Sonography facilitates the assessment of capitellar lesions so
that treatment can be optimized.