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Related Experiment Videos

Biceps tendon dislocation: evaluation with MR imaging.

T W Chan1, M K Dalinka, J B Kneeland

  • 1Department of Radiology, Devon MRI Center, Hospital of the University of Pennsylvania, Philadelphia 19104.

Radiology
|June 1, 1991
PubMed
Summary
This summary is machine-generated.

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Magnetic resonance (MR) imaging effectively identifies biceps tendon dislocation, revealing associated shoulder abnormalities. Familiarity with these MR findings is crucial for diagnosing this condition.

Area of Science:

  • Radiology
  • Orthopedic Imaging
  • Musculoskeletal Imaging

Background:

  • Biceps tendon dislocation is an uncommon shoulder injury that can be challenging to diagnose.
  • Magnetic resonance (MR) imaging is increasingly utilized for evaluating shoulder derangements.

Purpose of the Study:

  • To retrospectively evaluate magnetic resonance (MR) imaging findings in patients with suspected or confirmed biceps tendon dislocation.
  • To describe the characteristic appearance of dislocated biceps tendons and associated pathologies on MR images.

Main Methods:

  • Retrospective review of MR images from six patients with biceps tendon dislocation (two surgically confirmed, four suspected).
  • Evaluation of tendon position, signal intensity, and associated abnormalities on axial, coronal, and sagittal views.

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Main Results:

  • Dislocated biceps tendons were identified medial to the bicipital groove on MR images.
  • Associated abnormalities included tendon thickening, high signal intensity, surrounding fluid, and tears in adjacent structures (coracohumeral ligament, subscapularis, supraspinatus tendons).
  • Contributing factors like abnormal bicipital groove shape were also visualized.

Conclusions:

  • MR imaging is a valuable tool for diagnosing biceps tendon dislocation and associated shoulder injuries.
  • Radiologists must be familiar with the specific MR imaging features of biceps tendon dislocation for accurate diagnosis.