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Arthroscopic findings after shoulder dislocation

B Hintermann1, A Gächter

  • 1Department of Orthopaedic Surgery, University of Basel, Switzerland.

The American Journal of Sports Medicine
|September 1, 1995
PubMed
Summary
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Shoulder instability often results from multiple issues, not a single cause. Arthroscopy reveals common findings like anterior labral tears and capsule insufficiency in patients with shoulder dislocations.

Area of Science:

  • Orthopedic Surgery
  • Sports Medicine
  • Arthroscopy

Background:

  • Shoulder instability is a common clinical problem.
  • Understanding the underlying causes is crucial for effective treatment.
  • Previous studies have suggested various etiologies for shoulder instability.

Purpose of the Study:

  • To prospectively evaluate arthroscopic findings in patients with shoulder instability.
  • To identify common morphologic changes associated with glenohumeral joint instability.
  • To establish a rationale for specific surgical interventions based on arthroscopic evidence.

Main Methods:

  • Prospective arthroscopic examination of 212 patients with documented shoulder dislocations.
  • Detailed documentation of intra-articular and capsular pathologies.

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  • Correlation of findings with the clinical presentation of instability.

    • Main Results:

    • Anterior glenoid labral tears (87%) and ventral capsule insufficiency (79%) were highly prevalent.
    • Hill-Sachs compression fractures (68%) and glenohumeral ligament insufficiency (55%) were also common.
    • Other findings included rotator cuff tears (14%) and SLAP lesions (7%), indicating multifactorial causes.

    Conclusions:

    • Shoulder instability is typically multifactorial, with no single causative lesion.
    • Arthroscopy provides essential diagnostic information for planning surgical management.
    • Specific labral and capsular abnormalities correlate with different types of anterior instability.