Variation in stress distribution patterns across the radial head fovea in osteochondritis dissecans: predictive factors in radiographic findings

Journal of Shoulder and Elbow Surgery
Yuki MatsuiNorimasa Iwasaki

Abstract

Predictive factors for the development of osteoarthritis in adolescent osteochondritis dissecans (OCD) of the humeral capitellum remain unclear. The objectives of this study were to assess subchondral bone density in the radial head fovea of patients with OCD and to evaluate stress distribution in the radiocapitellar joint. The relationship between radiologic classification and stress distribution, according to multivariate ordinal regression analysis, was also investigated. Computed tomography (CT) imaging data from 54 male patients with OCD (mean age, 13.1 years) were collected. Stress in the radial head fovea was measured using CT osteoabsorptiometry. A stress map was constructed and divided into 4 sections, and percentages of high-density regions in each section were quantitatively analyzed. Multivariate ordinal regression analyses were performed of bone density, incorporating the stage, location, and size of the OCD lesion and the presence of medial elbow disturbance in the radiographic images. The percentage of high-density area in the anteromedial, posteromedial, and the anterolateral sections of the radial head fovea were significantly increased compared with the posterolateral section. Multivariate ordinal regression a...Continue Reading

Citations

Aug 29, 2019·AJR. American Journal of Roentgenology·Jie C NguyenRichard Kijowski
Jul 28, 2019·The American Journal of Sports Medicine·Tadanao FunakoshiYoshiyasu Itoh
Sep 16, 2021·The American Journal of Sports Medicine·Dani RotmanShawn W O'Driscoll

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