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Observational Study
. 2021 Jan 21;11(1):1858.
doi: 10.1038/s41598-020-79867-x.

Factors affecting the onset and progression of rotator cuff tears in the general population

Tsuyoshi Ichinose  1 , Hitoshi Shitara  2 , Tsuyoshi Tajika  1 , Tsutomu Kobayashi  3 , Atsushi Yamamoto  4 , Noritaka Hamano  1 , Tsuyoshi Sasaki  1 , Daisuke Shimoyama  1 , Masataka Kamiyama  1 , Ryosuke Miyamoto  1 , Kenji Takagishi  5 , Hirotaka Chikuda  1
Affiliations
Observational Study

Factors affecting the onset and progression of rotator cuff tears in the general population

Tsuyoshi Ichinose et al. Sci Rep. .

Abstract

While previous studies have revealed factors affecting the progression of rotator cuff tear (RCT), none have yet described factors affecting its onset. The purpose of this longitudinal observational study was to analyze factors affecting the RCT onset and progression in the general population. The present study included 185 shoulders from 93 participants who completed all the examinations in both 2012 and 2017. Participants received a questionnaire with age, gender, arm dominance, and presence of pain at rest, in motion, and at night. The range of motion (ROM), simple shoulder test (SST) were also examined. Anteroposterior radiograph of the shoulder joint was performed to evaluate the degree of osteoarthritic changes by the Samilson-Prieto (S-P) classification. The degree of RCT was examined by ultrasonography. There were 132 shoulders without RCT and 53 with RCT in 2012. RCT occurred in 21 of 132 shoulders, and the factor affecting the RCT onset was S-P grade 2 osteoarthritic change in 2012 (odds ratio [OR] 10.10). RCT progressed in 22 of 53 shoulders, and the factor affecting RCT progression was the presence of motion pain in 2012 (OR 13.76). These results added new knowledge regarding the natural course of RCT onset and progression.

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Conflict of interest statement

The authors declare no competing interests.

Figures

Figure 1
Figure 1
The figure shows the anteroposterior radiograph of Samilson-Prieto grade 0 (normal).
Figure 2
Figure 2
The figure shows the anteroposterior radiograph of Samilson-Prieto grade 1.
Figure 3
Figure 3
The figure shows the anteroposterior radiograph of Samilson-Prieto grade 2.
See this image and copyright information in PMC

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