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Clinical Orthopaedics and Related Research®

, Volume 470, Issue 4, pp 961–964 | Cite as

Arthroscopically Determined Degree of Injury After Shoulder Dislocation Relates to Recurrence Rate

  • Vicente Gutierrez
  • Juan Edo Monckeberg
  • Miguel Pinedo
  • Fernando Radice
Symposium: Arthroscopy

Abstract

Background

The glenohumeral joint is the most mobile articulation in the body and the most commonly dislocated diarthrodial joint with peaks in the incidence of dislocation occurring during the second and sixth decades. Age at the time of the initial dislocation is inversely related to the recurrence rate. Traumatic anterior instability is often associated with intraarticular injuries. The frequency of injuries may increase with dislocation or subluxation episodes.

Questions/purposes

We compared the frequency of lesions associated with traumatic anterior instability in patients with primary and recurrent instability.

Methods

We retrospectively reviewed 96 selected patients with traumatic anterior instability treated arthroscopically between 2005 and 2008. Forty-five had arthroscopy after a first episode of dislocation (Group I) and 51 had two or more episodes of instability (Group II). We compared the frequencies and percentage of intraarticular lesions in both groups.

Results

We observed a Bankart lesion in all patients of both groups. The posterior Bankart lesion was observed more frequently in Group II than in Group I: 47% versus 28%. SLAP lesions were observed in 12% in Group I and 24% in Group II. In 10 patients in Group II, there was an associated rotator cuff tear.

Conclusions

Patients with recurrent shoulder dislocation had a higher arthroscopic degree of injury. These patients presented more posterior labral lesions, SLAP tears, and rotator cuff pathology than patients with a first episode of shoulder dislocation.

Level of Evidence

Level II, prognostic study. See Guidelines for Authors for a complete description of levels of evidence.

Keywords

Rotator Cuff Rotator Cuff Tear Shoulder Instability Shoulder Dislocation Recurrent Dislocation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© The Association of Bone and Joint Surgeons® 2012

Authors and Affiliations

  • Vicente Gutierrez
    • 1
  • Juan Edo Monckeberg
    • 1
  • Miguel Pinedo
    • 1
  • Fernando Radice
    • 1
  1. 1.Clínica Las CondesSantiagoChile

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