Effect of the posterior bundle of the medial collateral ligament on elbow stability

The Journal of Hand Surgery
J Whitcomb PollockGraham J W King

Abstract

The role of the posterior bundle of the medial collateral ligament in stability of the elbow remains poorly defined. The purpose of this study was to determine the effect of sectioning the posterior bundle of the medial collateral ligament on the stability of the elbow. Varus and valgus gravity-loaded passive motion and simulated active vertical motion were performed on 11 cadaveric arms using an in vitro elbow motion simulator. Varus/valgus angle and internal/external rotation of the ulna with respect to the humerus were recorded using an electromagnetic tracking system in varus, valgus, and vertical orientations. Testing was performed on the intact elbow and after sectioning of the posterior bundle of the medial collateral ligament. With active flexion in the vertical position, the varus/valgus kinematics were unchanged after sectioning of the posterior bundle of the medial collateral ligament. However, in pronation, there was an increase in internal rotation after sectioning of the posterior bundle of the medial collateral ligament compared with that of the intact elbow. This rotational difference was not detected with the forearm in supination. During supinated passive flexion in the varus position, sectioning of the poster...Continue Reading

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Citations

Oct 26, 2013·Journal of Orthopaedic Science : Official Journal of the Japanese Orthopaedic Association·Nina DjordjevićIn-Ho Jeon
Apr 7, 2012·The Journal of Hand Surgery·M T SaboG J W King
Jul 26, 2011·Journal of Shoulder and Elbow Surgery·Bashar AlolabiGraham J W King
Jul 17, 2016·Journal of Shoulder and Elbow Surgery·Elan J GolanMichael Hausman
Jan 24, 2014·Acta ortopedica brasileira·Marcelo Fernandes TribstAntonio Egydio de Carvalho
Apr 3, 2010·The Journal of Bone and Joint Surgery. American Volume·Timothy H BellGraham J W King
Apr 21, 2012·The Journal of Bone and Joint Surgery. American Volume·Kristofer J JonesDavid W Altchek
Jan 26, 2020·Surgical and Radiologic Anatomy : SRA·S ShimizuI Kageyama
Jan 21, 2020·Journal of Neural Engineering·Daniele BorzelliLaura Gastaldi
Apr 4, 2014·The Journal of Bone and Joint Surgery. American Volume·Bashar AlolabiGraham J W King
Feb 11, 2021·Journal of Biomechanical Engineering·Sydney RobinsonEmily Lalone
Jun 18, 2021·European Journal of Radiology·Zeid Al-AniAdam C Watts
Apr 28, 2010·Journal of Shoulder and Elbow Surgery·Marlis T SaboGraham J W King

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