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Patients with OCD lesions, UCL injuries had greater varus, valgus angles vs patients with uninjured elbows
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Recently published results showed a greater varus carrying angle and larger valgus, distal humeral articular surface angle among patients with osteochondritis dissecans lesions and ulnar collateral ligament injuries compared to patients with normal elbows.
Based on MRI, researchers identified 19 pediatric patients with isolated osteochondritis dissecans defects of the capitellum; eight pediatric patients with isolated ulnar collateral ligament (UCL) complete tears; and 16 pediatric patients with normal elbows. Researchers reviewed radiographic measurements, including carrying angle, distal humeral articular surface angle and radial neck-shaft angle, from corresponding anterior-posterior elbow radiographs, and measured anterior angulation of the articular surface of distal humerus on the lateral radiographs.
Results showed significant differences in carrying angle between control patients and patients with osteochondritis dissecans lesions, and between control patients and patients with UCL injuries. Researchers noted patients with osteochondritis dissecans lesions or UCL injuries tended to be in more varus. Patients with osteochondritis dissecans lesions or UCL injuries had increased valgus at the distal humerus articular surface compared with patients with normal elbows. However, researchers found radial neck-shaft angle and anterior angulation of articular surface of distal humerus showed no significant differences between groups. – by Casey Tingle
Disclosure: The researchers report no relevant financial disclosures.
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