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Published in: International Orthopaedics 11/2018

01-11-2018 | Original Paper

The contribution of the scapula to active shoulder motion and self-assessed function in three hundred and fifty two patients prior to elective shoulder surgery

Authors: Jason E. Hsu, David Andrew Hulet, Chris McDonald, Anastasia Whitson, Stacy M. Russ, Frederick A. Matsen III

Published in: International Orthopaedics | Issue 11/2018

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Abstract

Purpose

Scapular motion is an important component of shoulder function. This study determined the contribution of the scapula to active shoulder motion in control subjects and patients with loss of shoulder function.

Methods

The Kinect system was used to assess active scapulothoracic (ST) and humerothoracic (HT) abduction in 12 controls and in 352 patients before elective shoulder surgery.

Results

For the controls, ST abduction averaged 26 ± 7° or 19% of the active HT abduction (135 ± 5°). For the 352 patients having elective surgery, active ST abduction averaged 12 ± 10°, or 17% of the active HT abduction (72 ± 38). For 10 of the 12 SST functions, patients unable to perform the function had significantly less scapulothoracic abduction, e.g., shoulders unable to lift one pound to shoulder level had 9 ± 8° of ST abduction in contrast to 17 ± 10 for those able to perform this function (p < .001).

Conclusions

Scapulothoracic motion is an important component of active shoulder motion and function in both healthy shoulders and in those compromised by common pathologies. This study suggests that rehabilitation directed at improving active scapulothoracic motion may improve the function of shoulders with loss of glenohumeral motion.

Level of evidence

Level III Prognostic Study
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Metadata
Title
The contribution of the scapula to active shoulder motion and self-assessed function in three hundred and fifty two patients prior to elective shoulder surgery
Authors
Jason E. Hsu
David Andrew Hulet
Chris McDonald
Anastasia Whitson
Stacy M. Russ
Frederick A. Matsen III
Publication date
01-11-2018
Publisher
Springer Berlin Heidelberg
Published in
International Orthopaedics / Issue 11/2018
Print ISSN: 0341-2695
Electronic ISSN: 1432-5195
DOI
https://doi.org/10.1007/s00264-018-4027-3

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