Arthroscopic Versus Open Stabilization for Traumatic Shoulder Instability

Status Completed

Clinical Trial Summary

The purpose of this study is to compare arthroscopic and open shoulder stabilization procedures by measuring the disease-specific quality of life outcome in patients with traumatic unidirectional anterior instability of the shoulder at 2 and 5 years.

Hypothesis: There is no difference in disease-specific quality of life outcomes in patients with traumatic unidirectional anterior shoulder instability, undergoing an arthroscopic versus an open stabilization procedure.

Clinical Trial Description

Shoulder instability most commonly affects people in the late teens to mid thirties, which are the most active years, recreational and vocational. The resulting disability, time lost from work, as well as the effect on an individual's quality of life represent a significant clinical problem for the population and for the healthcare system.

The normal anatomy in the unstable shoulder can be restored using arthroscopic or open surgical stabilization techniques. There is considerable controversy surrounding the issue of arthroscopic versus open shoulder stabilization. Advocates of arthroscopic procedures cite the following as advantages: faster recovery, less post operative pain, decreased operative time, improved cosmetics, greater return of shoulder motion and the more accurate identification of intraarticular pathology. Those in favor of an open procedure cite superior long term results showing fewer recurrences with an open stabilization.

There are few published reports directly comparing arthroscopic versus open shoulder stabilization repairs. It is also difficult to compare the results of existing studies as they report on heterogeneous patient populations, using a variety of techniques on mixed pathologies, using different outcome scales and variable definitions of success and failure. This study will address this controversial issue by comparing the disease-specific quality of life outcomes in patients with traumatic unidirectional anterior shoulder instability undergoing an arthroscopic versus an open stabilization procedure.

This study is designed as a prospective randomized clinical trial with a second prospective analytical cohort study arm. In the randomized arm, patients are assigned to arthroscopic or open surgery based on varied block, computer-generated randomization. The expertise-based randomization method is used in this study, whereby the surgeons perform either arthroscopic or open surgery, but not both. Therefore, a patient is not only randomized to a treatment group, but is also assigned to the expert surgeon for that treatment.

Patients in the prospective analytical cohort study arm of the trial undergo shoulder stabilization (open or arthroscopic) with any surgeon and complete the same follow-up visits, however they have not been randomized. The outcomes of the prospective cohort will be compared to those of the randomized arm to determine if the expertise-based randomization method has an effect on patient outcome.

Disease-specific quality of life is assessed using the validated Western Ontario Shoulder Instability (WOSI) Index. The index has 21 questions divided into 4 categories: physical symptoms, sport/recreation/work, lifestyle and emotions. This self-administered questionnaire utilizes a 100mm visual analog scale format to provide an overall score out of 100. A lower score reflects a better quality of life. ;

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Single Blind (Outcomes Assessor), Primary Purpose: Treatment

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT00251264
Study type	Interventional
Source	University of Calgary
Contact
Status	Completed
Phase	N/A
Start date	November 2001
Completion date	December 2013

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