Forces across the middle of the intact clavicle during shoulder motion

Journal of Shoulder and Elbow Surgery
Maria IannoloScott M VanValkenburg

Abstract

The optimal management of displaced middle third clavicle fractures is currently under investigation. Advances in fracture fixation technology have expanded the indications for operative fracture management. Data are currently unavailable regarding the normal forces and moments that occur in the middle clavicle with motion of the glenohumeral joint. This study tested our null hypothesis that active range of motion in internal rotation, external rotation, and abduction would produce a similar magnitude of force across the middle clavicle. Clavicle forces were measured in 6 whole fresh frozen cadavers using a 6 degree-of-freedom load cell mounted to the middle third of the clavicle. The rotator cuff tendons were isolated, divided, and connected to a system of weights. The forces across the clavicle in 3 orthogonal directions were quantified during simulated active abduction, internal rotation, and external rotation. There were statistically greater axial compressive force and torque in the clavicle during humeral abduction compared with internal or external rotation. During external rotation, there were statistically greater tensile forces compared with abduction or internal rotation. There were no statistical differences in the ...Continue Reading

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Citations

Feb 26, 2016·Forensic Science International : Synergy·Elena Ruiz MediavillaAndrés Santiago Sáez
Jan 19, 2016·Journal of Shoulder and Elbow Surgery·David J WilsonEdward D Arrington
Feb 3, 2015·International Journal for Numerical Methods in Biomedical Engineering·Megan Pendergast, Razvan Rusovici
Oct 26, 2013·Computer Methods in Biomechanics and Biomedical Engineering·Marie CronskärMats Tinnsten
Sep 13, 2017·Orthopaedic Journal of Sports Medicine·Christopher G LarsenSteven C Chudik
Sep 9, 2017·Journal of Applied Biomaterials & Functional Materials·Cyrill SuterAndrej M Nowakowski
Aug 11, 2018·European Journal of Trauma and Emergency Surgery : Official Publication of the European Trauma Society·Martijn HulsmansMark van Heijl
Feb 23, 2020·Pharmaceutics·Pariksha Jolene KondiahViness Pillay
Aug 17, 2021·Shoulder & Elbow·Ezequiel E ZaidenbergCarlos R Zaidenberg

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