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Updated: Apr 11, 2026

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Rotator interval.

Klaus Woertler1

  • 1Department of Radiology, Technische Universität München, Munich, Germany.

Seminars in Musculoskeletal Radiology
|May 30, 2015
PubMed
Summary

The rotator interval is a complex shoulder region. Understanding its anatomy and MR imaging is key to diagnosing and treating associated pain and instability.

Area of Science:

  • Orthopedics and Sports Medicine
  • Radiology
  • Anatomy

Background:

  • The rotator interval is an intricate shoulder joint region.
  • Clinical and imaging evaluation is challenging.
  • Abnormalities can cause instability, stiffness, and pain.

Purpose of the Study:

  • To provide an overview of rotator interval anatomy and MR anatomy.
  • To discuss normal variants and MR imaging techniques.
  • To review and illustrate common pathologic conditions.

Main Methods:

  • Review of anatomical structures.
  • Discussion of Magnetic Resonance (MR) imaging techniques.
  • Illustration of pathologies with clinical examples.

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Main Results:

  • Detailed description of rotator interval anatomy and MR appearance.
  • Identification of normal variants.
  • Presentation of common pathologies affecting the capsule, biceps tendon, and pulley system.

Conclusions:

  • Accurate diagnosis and treatment of rotator interval pathologies require a thorough understanding of its complex anatomy and MR imaging.
  • MR imaging is crucial for evaluating abnormalities in this region.
  • This article serves as a guide for clinicians and radiologists.