ArticleOrthopaedic journal of sports medicine2025
Forearm Rotation at the Time of Elbow Ulnar Collateral Ligament Reconstruction Graft Tensioning Does Not Affect Postoperative Medial Elbow Joint Gapping.
Article in Orthopaedic journal of sports medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: The role of forearm rotation at the time of ulnar collateral ligament (UCL) reconstruction (UCLR) graft tensioning is poorly understood. Purpose: To compare postoperative medial elbow joint gapping in cadaveric elbows after UCLR graft tensioning with the forearm in supination versus pronation. Study Design: Descriptive laboratory study. Methods: A total of 18 full-arm human specimens were stripped of soft tissue except elbow ligamentous and capsular structures. Elbows with an intact, native ligament were tested for medial elbow gapping during valgus stress at 30°, 60°, and 90° with the forearm in neutral, maximal supination, and maximal pronation. Joint gapping was determined with a 3-dimensional motion capture system and calibrated digitized points on the ulna and humerus. The UCL was transected, and reconstruction was performed using a standard docking technique. Elbows were randomized to full supination or pronation at the time of final graft tensioning, and medial elbow joint gapping was again measured for the same positions and same technique. Analysis of variance test was used to compare differences in native and postoperative medial elbow joint gapping ( Results: The position of forearm rotation did not affect the amount of medial elbow joint gapping during valgus stress at all tested elbow flexion angles with an intact, native UCL. The position of forearm rotation during UCL graft tensioning also did not affect postoperative medial elbow joint gapping during valgus stress at all tested elbow flexion angles. Conclusion: Forearm rotation with an intact UCL and at the time of UCL graft tensioning did not affect the amount of medial elbow joint gapping during valgus torque.
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