Related Experiment Video
Updated: Jun 13, 2026
10:10
Reverse Total Shoulder Arthroplasty
Published on: July 5, 2011
Arthroscopic stabilization of posterior shoulder instability
1Medisch Centrum Alkmaar, Alkmaar, The Netherlands.
Summary
Arthroscopic stabilization for posterior shoulder instability using labral refixation or capsulorrhaphy offers effective treatment. Thermal capsular shrinkage yielded poor results and is not recommended for this condition.
Area of Science:
- Orthopedic Surgery
- Sports Medicine
- Arthroscopy
Background:
- Posterior shoulder instability is a rare condition with complex patho-anatomy.
- The efficacy of arthroscopic repair for posterior shoulder instability is not well-established.
Purpose of the Study:
- To evaluate the outcomes of arthroscopic stabilization procedures for posterior shoulder instability.
Main Methods:
- A case series of 18 patients (19 shoulders) with posterior shoulder instability underwent arthroscopic thermal capsular shrinkage, capsulorrhaphy, or labral refixation.
- Clinical outcomes were assessed using Rowe and DASH scores, and subjective/objective evaluations of function, range of motion, pain, and instability.
Main Results:
- Significant improvement in Rowe scores from 46 to 74 (P = 0.005) at a mean 50-month follow-up.
- Recurrent instability occurred in 21% of patients; outcomes were inferior after thermal shrinkage and in atraumatic cases.
- Labral refixation and capsulorrhaphy demonstrated safe and effective results.
Conclusions:
- Arthroscopic stabilization via labral refixation or capsulorrhaphy is a safe and effective treatment for posterior shoulder instability.
- Thermal capsular shrinkage showed poor outcomes and should be avoided for this indication.
