Surgical treatment for recurrent shoulder dislocations

The Arthroscopic Treatment of Anterior Shoulder Instability (ATRASI): A Pilot Multicentre Randomized Controlled Trial

NA · Nova Scotia Health Authority · NCT05564494

This study is testing two different surgical methods to see which one works better for people with recurring shoulder dislocations.

Quick facts

PhaseNA
Study typeInterventional
Enrollment200 (estimated)
Ages16 Years to 40 Years
SexAll
SponsorNova Scotia Health Authority (other)
Locations2 sites (New York, New York and 1 other locations)
Trial IDNCT05564494 on ClinicalTrials.gov

What this trial studies

This pilot trial aims to evaluate the feasibility of comparing two surgical techniques, arthroscopic Bankart repair and arthroscopic anatomic glenoid reconstruction, for treating recurrent shoulder dislocations. The study will assess the ability to recruit patients across multiple sites and adherence to the study protocol over a 24-month follow-up period. While the primary focus is on feasibility, the trial will also gather data on dislocation rates and functional outcomes to inform a larger definitive trial in the future.

Who should consider this trial

Good fit: Ideal candidates are individuals under 20 years old with recurrent anterior glenohumeral dislocations and evidence of bone loss on imaging.

Not a fit: Patients with uncontrolled diabetes, prior shoulder surgery, or other specific exclusions such as severe systemic illness or cancer may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved surgical options and outcomes for patients suffering from recurrent shoulder dislocations.

How similar studies have performed: Previous studies have shown that surgical management of shoulder instability can significantly reduce recurrence rates, indicating potential success for this approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Recurrent anterior glenohumeral dislocation (two or more incidents)
* Presence of glenoid and/or humerus bone loss on imaging (x Ray, CT or MRI)

Exclusion Criteria:

* Uncontrolled diabetes (Hgb A1C \>7%)
* Prior surgery of affected shoulder
* Pregnancy
* Multidirectional instability
* Posterior instability
* Paralysis of the shoulder
* Cancer
* Severe systemic illness
* Presence of massive rotator cuff tear
* Patients that present with \< 10% or \> 25% bone loss under preoperative imaging.
* Generalized laxity (\>5/9 Beighton Score)

Where this trial is running

New York, New York and 1 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Shoulder Instability, Arthroscopy, Multiple Dislocations

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.