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Updated: Apr 14, 2026

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Clinical and Radiographic Factors Associated With Rotator Cuff Tears: A Case-Control Study.

Zied Masmoudi1, Sofiane Masmoudi1, Mohamed Ali Khlif1

  • 1Orthopaedics, Faculty of Medicine of Tunis, Tunis El Manar University, Tunis, TUN.

Cureus
|April 13, 2026
PubMed
Summary
This summary is machine-generated.

Rotator cuff tears are linked to anatomical factors like the critical shoulder angle (CSA) and clinical factors such as obesity and occupation. The CSA showed the strongest predictive value for rotator cuff tears.

Keywords:
acromial indexbody mass indexcritical shoulder angleoccupational exposurerisk factorsrotator cuff injuries

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Area of Science:

  • Orthopedic Surgery
  • Radiology
  • Epidemiology

Background:

  • Rotator cuff tears (RCTs) result from intrinsic and extrinsic factors.
  • Understanding associated risk factors is crucial for prevention and management.

Purpose of the Study:

  • To assess the association between 12 clinical and radiographic factors and RCT occurrence.
  • To identify independent predictors of rotator cuff tear development.

Main Methods:

  • Retrospective case-control study with 40 RCT cases and 40 matched controls.
  • Clinical data and radiographic parameters (critical shoulder angle - CSA, acromial index - AI) were analyzed.
  • Multivariable logistic regression and ROC curve analysis were performed.

Main Results:

  • RCTs were significantly associated with higher BMI, dominant side involvement, high-risk occupation, higher AI, and higher CSA.
  • CSA demonstrated superior predictive performance over AI.
  • CSA, BMI, dominant side involvement, and high-risk occupation were independent predictors of RCTs.

Conclusions:

  • RCTs are associated with anatomical (CSA) and clinical factors (BMI, occupation, dominant side).
  • CSA is a strong radiographic predictor of rotator cuff tears.
  • Findings support improved risk stratification and preventive strategies focusing on weight and ergonomics.