抄録
To study the elongation of Osborne’s ligament due to elbow flexion, 19 cadavers were dissected. The length of Osborne’s ligament from its point of attachment to the humerus to its point of attachment to the ulna was measured in 10° increments of elbow flexion angle from 20° to 140°. Up to 40° 3, the length decreased slightly, and then increased almost linearly to an average of 7.62 mm or 52.3%. Osborne’s ligament had a tendency to gradually elongate at a flexion angle of more than 90°. However, this distance was shortened in four elbows due to variations in the sites of attachment of Osborne’s ligament.