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This Article Full Text Full Text (PDF) All Versions of this Article: 33/10/1463    most recent 0363546505278301v1 Alert me when this article is cited Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in ISI Web of Science Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Request Permissions Request Reprints Citing Articles Citing Articles via HighWire Citing Articles via ISI Web of Science (1) Citing Articles via Google Scholar Google Scholar Articles by Provencher, M. T. Articles by Mologne, T. S. Search for Related Content PubMed PubMed Citation Articles by Provencher, M. T. Articles by Mologne, T. S. Related Collections Shoulder Arthroscopy

Arthroscopic Treatment of Posterior Shoulder Instability

Results in 33 Patients

From the Division of Orthopaedic Shoulder & Sports Medicine, Department of Orthopaedic Surgery, Naval Medical Center San Diego, San Diego, California

^* Address correspondence to Matthew T. Provencher, MD, LCDR, MC, USNR, Naval Medical Center San Diego, Department of Orthopaedic Surgery, 34800 Bob Wilson Drive, Suite 112, San Diego, CA 92134-1112 (e-mail: mtprovencher{at}nmcsd.med.navy.mil).

Background: Posterior shoulder instability is a relatively rare condition and a surgical challenge. Arthroscopic techniques have allowed for a potential improvement as well as diagnosis and management of this condition.

Purpose: To evaluate the outcomes of arthroscopic posterior shoulder stabilization and to evaluate preoperative and intraoperative variables as predictors of success.

Study Design: Case series; Level of evidence, 4.

Methods: Thirty-three consecutive patients with a mean age of 25 years (range, 19–34 years) who underwent posterior arthroscopic shoulder stabilization with suture anchors (mean, 3 anchors) or suture capsulolabral plication (mean, 5.3 stitches) or both were reviewed at a mean follow-up of 39.1 months (range, 22–60 months). Shoulder outcomes rating scores were determined using the American Shoulder and Elbow Surgeons Rating Scale, the Western Ontario Shoulder Instability Index, the Subjective Patient Shoulder Evaluation, and the Single Assessment Numeric Evaluation.

Results: There were 7 failures: 4 for recurrent instability and 3 for symptoms of pain. Overall, outcomes scores demonstrated mean values of the American Shoulder and Elbow Surgeons Rating Scale of 94.6, Subjective Patient Shoulder Evaluation of 20.0, Western Ontario Shoulder Instability Index of 389.4 (81.5% of normal), and Single Assessment Numeric Evaluation of 87.5. Patients with voluntary instability demonstrated worse outcomes (P = .025), and those with prior surgery of the shoulder also did worse (P = .02).

Conclusion: Arthroscopic treatment of posterior shoulder instability is an effective means to improve symptoms associated with recurrent posterior subluxation of the shoulder. It can provide predictable success in the setting of unidirectional, nonvoluntary posterior instability without prior surgery.

Key Words: posterior shoulder instability • shoulder instability • arthroscopic • posterior

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				T. S. Mologne, K. Zhao, M. Hongo, A. A. Romeo, K.-N. An, and M. T. Provencher The Addition of Rotator Interval Closure After Arthroscopic Repair of Either Anterior or Posterior Shoulder Instability: Effect on Glenohumeral Translation and Range of Motion Am. J. Sports Med., June 1, 2008; 36(6): 1123 - 1131. [Abstract] [Full Text] [PDF]

				C. A. Radkowski, A. Chhabra, C. L. Baker III, S. G. Tejwani, and J. P. Bradley Arthroscopic Capsulolabral Repair for Posterior Shoulder Instability in Throwing Athletes Compared With Nonthrowing Athletes Am. J. Sports Med., April 1, 2008; 36(4): 693 - 699. [Abstract] [Full Text] [PDF]