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Rev Bras Ortop. 2017 Jun 15;52(4):423-427. doi: 10.1016/j.rboe.2017.06.002. eCollection 2017 Jun-Jul.

Relationship between the critical shoulder angle and the development of rotator cuff lesions: a retrospective epidemiological study.

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1
Universidade Federal de Uberlândia, Departamento de Ortopedia e Traumatologia, Uberlândia, MG, Brazil.

Abstract

in English, Portuguese

OBJECTIVE:

To perform a retrospective epidemiological study of radiographs in order to evaluate the relationship between the anatomy of the scapula and the development of rotator cuff injuries (RCIs).

METHODS:

This study retrospectively evaluated the relation of the critical shoulder angle (CSA) and RCIs from January 2011 to November 2013; patients were examined in the Orthopedics and Traumatology Department of a university hospital. The CSA was measured by radiographic standardization of two groups: a control group of 34 asymptomatic shoulders and a study group of 44 shoulders with complete RCIs.

RESULTS:

The mean age in the control group was 59.97 years (45-84) and the mean age in the group with RCIs was 59.75 years (45-84). Regarding the CSA, the control group had a mean angle of 33.59° (±3.37) and the group with RCIs had a mean angle of 39.75° (±5.35; p < 0.007).

CONCLUSION:

There is an association between CSA and RCIs.

KEYWORDS:

Acromion/radiography; Articular range of motion; Rotator cuff/radiography; Shoulder joint

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