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Related Experiment Videos

Posterior dislocation of the shoulder: recommendations for a classification

K D Heller1, J Forst, R Forst

  • 1Orthopaedic Department, Medical Faculty, RWTH Aachen, Germany.

Archives of Orthopaedic and Trauma Surgery
|January 1, 1994
PubMed
Summary

Posterior shoulder dislocation is rare, often subacromial, and can be traumatic or atraumatic. A new classification and follow-up score aid in assessing shoulder stability post-treatment.

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Area of Science:

  • Orthopedics
  • Sports Medicine
  • Anatomy

Background:

  • Posterior shoulder dislocation is an uncommon injury, accounting for only 2.1% of all shoulder dislocations.
  • The injury can result from direct or indirect forces, with constitutional factors also contributing to its occurrence.
  • Anatomically, the vast majority (97.5%) of these dislocations are subacromial.

Purpose of the Study:

  • To review the international literature on posterior shoulder dislocation and subluxation.
  • To develop a classification system based on the etiology of posterior shoulder instability.
  • To detail a follow-up assessment score for evaluating shoulder stability after treatment.

Main Methods:

  • A comprehensive review of 300 articles from the international literature on posterior shoulder dislocation and subluxation.

Related Experiment Videos

  • Development of a classification system for posterior shoulder dislocations and subluxations based on etiological factors.
  • Inclusion of recurrent voluntary dislocations as a separate category.

    • Main Results:

    • Posterior shoulder dislocations and subluxations were classified as traumatic or atraumatic, primary or recurrent.
    • Recurrent cases of voluntary dislocation were addressed distinctly within the classification.
    • A follow-up assessment score was developed, emphasizing shoulder stability post-treatment.

    Conclusions:

    • A new etiological classification for posterior shoulder dislocation and subluxation has been established.
    • The classification differentiates between traumatic, atraumatic, primary, and recurrent types, including voluntary dislocations.
    • The proposed follow-up score aids in objectively assessing shoulder stability after therapeutic interventions.