Comparing surgical methods for shoulder instability with bone loss
Official title: Open Versus Arthroscopic Stabilization of Shoulder Instability With Subcritical Bone Loss: The OASIS Trial
Run by University of Pittsburgh · NCT04809064 · Data updated 2026-11-12
This study tests which of three different shoulder surgeries works best for military and civilian patients with some bone loss, to help them recover faster and get back to their activities.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 17 Years to 50 Years |
| Sex | All |
| Enrollment | 450 (estimated) |
| Sponsor | University of Pittsburgh Academic / other |
| Locations | 15 sites (Tempe, Arizona and 14 other locations) |
| Status | Recruiting |
| Started | January 24, 2022 |
| Main results expected | September 30, 2027 |
| Study ends | September 30, 2027 |
| Registry record updated | June 8, 2026 |
| Trial ID | NCT04809064 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are military personnel and civilians aged 17 to 50 who have experienced a traumatic anterior shoulder dislocation with 10-20% glenoid bone loss.
✕Probably not a fit
Patients with chronic multi-directional instability, significant concurrent shoulder injuries, or other serious medical conditions may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This clinical trial investigates the effectiveness of three surgical procedures for treating shoulder instability in military personnel and civilians with 10-20% glenoid bone loss. Participants will be randomly assigned to receive either arthroscopic Bankart repair with remplissage, open Bankart repair, or Latarjet procedure, followed by a tailored rehabilitation program. The study aims to optimize recovery time and improve patient-reported outcomes related to physical function and return to duty or sports activities.
Why it matters
Potential benefit: If successful, this study could lead to improved surgical options and rehabilitation strategies for patients with shoulder instability, enhancing their recovery and return to active lifestyles.
How similar studies have gone: Other studies have shown promising results with similar surgical approaches for shoulder instability, indicating potential for success in this trial.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Civilians and military personnel ages 17 to 50 * Traumatic anterior shoulder dislocation * Associated subcritical bone loss between 10-20% less the glenoid width quantified by standard of care CT scan, MRI, or 3D-MRI scan * Had shoulder instability surgery using either 1) arthroscopic Bankart repair with remplissage of Hill-Sachs lesion; 2) open Bankart; or 3) Latarjet Exclusion Criteria: * Chronic, non-traumatic multi-directional instability based on clinical exam * Concurrent shoulder injury in the involved shoulder (e.g., rotator cuff tears, motor nerve pathologies, osteoarthritis of a Samilson-Prieto grade \>2) * Have a history of shoulder surgery in the involved shoulder (prior instability surgery that included any of the following and the planned procedure would be a repeat of the index procedure: 1) arthroscopic Bankart repair with a remplissage of Hill-Sachs lesion, 2) open Bankart, or 3) Latarjet \[previous isolated arthroscopic Bankart repair only would not be an exclusion criterion\], rotator cuff repair, intra-articular soft tissue surgery); rotator cuff repair, intra-articular soft tissue surgery) * Prior rotator cuff procedure on involved shoulder (including intra-articular soft tissue surgery * Humeral sided bone lesions (Hill-Sachs lesion) that is sufficiently large enough to render the lesion "off-track" even after a bony augmentation procedure would be performed * Neuromuscular, neurological and other movement control pathologies including seizures * Vascular injury associated with the shoulder trauma that compromise adequate/normal healing or interferes with usual course of care * Traumatic brain injury or any condition that would preclude the ability to comply with post-operative guidelines * Cartilage lesion finding in the involved shoulder that would interfere with usual course of care * Known pregnancy at time of imagining and/or surgery based upon standard of care testing procedures * Any issue with the contralateral shoulder that would preclude participation in research procedures * Any condition in the opinion of the investigator/clinician that would preclude or limit full participation in study activities * Absence of a fixed address or no means of contact * Known inability to be available at all follow-up time points * Does not plan to return to pre-injury levels of work, sports or military duty
Where it's running
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Mayo Clinic
Tempe, Arizona, United States Recruiting -
US Naval Health Clinic (Academy)
Annapolis, Maryland, United States Recruiting -
University of North Carolina at Chapel Hill
Chapel Hill, North Carolina, United States Recruiting -
Duke University
Durham, North Carolina, United States Recruiting -
Wake Forest University
Winston-Salem, North Carolina, United States Recruiting -
Ohio State University, Wexner Medical Center
Columbus, Ohio, United States Recruiting
Show 9 more locations
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University of Pittsburgh
Pittsburgh, Pennsylvania, United States Recruiting -
Rhode Island Hospital - Brown University Health
Providence, Rhode Island, United States Recruiting -
Vanderbilt University Medical Center
Nashville, Tennessee, United States Recruiting -
San Antonio Military Medical Center
Fort Sam Houston, Texas, United States Recruiting -
Naval Medical Center
San Diego, California, United States Active not recruiting -
Steadman Clinic
Vail, Colorado, United States Active not recruiting -
University of Connecticut Health Center
Farmington, Connecticut, United States Active not recruiting -
Walter Reed National Military Medical Center
Bethesda, Maryland, United States Active not recruiting -
Naval Medical Center Camp Lejeune
Marine Corps Base Camp Lejeune, North Carolina, United States Active not recruiting
Study contacts
- Principal investigator: Adam Popchak, PhD, PT — University of Pittsburgh
- Study coordinator: Adam Popchak, PhD, PT
- Email: ajp64@pitt.edu
- Phone: (412) 383-6627
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
-
Sling vs Dynamic Shoulder Brace After Shoulder Stabilization
This pilot randomized trial tests whether a dynamic shoulder orthosis helps people recover faster after arthroscopic stabilization for anterior shoulder instability compared with a standard sling.
-
New training method for military personnel recovering from shoulder dislocation
This study tests a new shoulder training method to see if it helps military personnel recover better from a shoulder dislocation compared to regular physical therapy.
-
Comparing METHOXYFLURANE and Virtual Reality to Standard Pain Management for Shoulder Dislocation
This study is testing if using METHOXYFLURANE and virtual reality can help relieve pain better than standard methods for people with shoulder dislocations.
-
Evaluating treatment options for first-time shoulder dislocation
This study is testing whether a surgical option or a non-surgical approach works better for young people who have just dislocated their shoulder for the first time.
-
Comparing two surgical methods for shoulder dislocation treatment
This study is testing which of two shoulder surgeries, the Latarjet procedure or Anatomic Glenoid Reconstruction, works better for people with significant bone loss after multiple dislocations.
-
Comparing Latarjet and Modified Eden-Hybinette shoulder stabilization surgeries
This tests whether Latarjet or Modified Eden‑Hybinette surgery better prevents repeat anterior shoulder dislocations in people with recurrent traumatic dislocation and significant glenoid bone loss.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.