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Functional integrity of the shoulder joint and pectoralis major following subpectoral implant breast reconstruction
Authors
Aviram M. Giladi
Joshua M. Leonardis
+3 more
David B. Lipps
Daniel A. Lyons
Adeyiza O. Momoh
Publication date
1 July 2019
Publisher
'Wiley'
Doi
Cite
Abstract
Subpectoral implants for breast reconstruction after mastectomy requires the surgical disinsertion of the sternocostal fiber region of the pectoralis major. This technique is associated with significant shoulder strength and range of motion deficits, but it is unknown how it affects the underlying integrity of the shoulder joint or pectoralis major. The aim of this study was to characterize the long‐term effects of this reconstruction approach on shoulder joint stiffness and pectoralis major material properties. Robot‐assisted measures of shoulder strength and stiffness and ultrasound shear wave elastography images from the pectoralis major were acquired from 14 women an average of 549 days (range: 313–795 days) post reconstruction and 14 healthy, age‐matched controls. Subpectoral implant patients were significantly weaker in shoulder adduction (p < 0.001) and exhibited lower shoulder stiffness when producing submaximal adduction torques (p = 0.004). The underlying material properties of the clavicular fiber region of the pectoralis major were altered in subpectoral implant patients, with significantly reduced shear wave velocities in the clavicular fiber region of the pectoralis major when generating adduction torques (p = 0.023). The clinical significance of these findings are that subpectoral implant patients do not fully recover shoulder strength or stability in the long‐term, despite significant recovery time, and substantial shoulder musculature left intact. The impact of these procedures extends to the remaining, intact volume of the pectoralis major. Optimization of shoulder function should be a key aspect of the post‐reconstruction standard of care. © 2019 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 37:1610–1619, 2019.Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/149750/1/jor24257.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/149750/2/jor24257_am.pd
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Last time updated on 25/10/2020
Deep Blue Documents at the University of Michigan
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Last time updated on 11/03/2020