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Related Experiment Video

Updated: Feb 28, 2026

Arthroscopic Management of Massive Irreparable Rotator Cuff Tears: Whole Rotator Cable Reconstruction Using Proximal Biceps Tendon Autograft
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The vacuum arthrogram in the shoulder: correlation with rotator cuff disease

S C Reed1, P Welsh

  • 1Orthopaedic and Arthritic Hospital, Toronto, Ontario, Canada.

Journal of Shoulder and Elbow Surgery
|September 1, 1996
PubMed
Summary

Plain shoulder X-rays can show a vacuum arthrogram, which accurately predicts an intact rotator cuff. This finding has high specificity and positive predictive value for rotator cuff integrity.

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Area of Science:

  • Radiology
  • Orthopedic Surgery
  • Diagnostic Imaging

Background:

  • Plain radiographs are commonly used for shoulder assessment.
  • Vacuum phenomena can be observed on shoulder radiographs.
  • The diagnostic utility of vacuum arthrograms for rotator cuff integrity is not fully established.

Purpose of the Study:

  • To evaluate the accuracy of vacuum arthrograms on plain shoulder radiographs as a predictor of rotator cuff integrity.

Main Methods:

  • Retrospective review of 122 consecutive shoulder arthrograms.
  • Analysis of preceding plain films for the presence of vacuum arthrograms.
  • Correlation of vacuum arthrogram findings with rotator cuff status.

Main Results:

  • Twenty-five vacuum arthrograms were identified on preceding plain films.
  • Vacuum arthrograms demonstrated high accuracy in predicting an intact rotator cuff.
  • Specificity was 0.98 and positive predictive value was 0.96.

Conclusions:

  • The presence of a vacuum arthrogram on plain shoulder radiographs is a reliable indicator of an intact rotator cuff.
  • This imaging finding can aid in non-invasively assessing rotator cuff status.
  • Further research may explore its role in clinical decision-making for shoulder injuries.