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Clinical Trial Summary

The primary objective of the pilot study is to assess the feasibility of a definitive trial to determine the effect of arthroscopic soft tissue stabilization vs. non-operative management on the risk of recurrent anterior dislocation rates and functional outcomes following in patients presenting with a first-time dislocation (FTD) over a 24-month period.


Clinical Trial Description

Background The shoulder is the most commonly dislocated joint in the body with a global incidence that ranges from 15 to 25 per 100 000 people. It is estimated that approximately 70 000 shoulder dislocations occur annually in the United States. In North America, a sampling of individuals presenting with shoulder dislocations to US emergency departments identified an overall incidence rate in the United States of 24 (95% confidence interval, 20.8 to 27.0) per 100,000 person-years and a maximum incidence rate (47.8 [95% confidence interval, 41.0 to 54.5]) occurring in those between the ages of twenty and twenty-nine years. A review of shoulder reductions performed in emergency rooms in Ontario, Canada between 2002 and 2010 identified 719 dislocations affecting primarily young patients with a median age of 35 years and 74% male. The incidence density rate of shoulder dislocations was found to be 23/100,000 person-years and highest among young males (98/100,000 person-years). Recurrence mainly occurs in the first 2 years after the first anterior shoulder dislocation event, and recurrent instability significantly affects quality of life, sport, and professional activities.4 Epidemiologic data suggests that younger patients are at significantly higher the risk of recurrence. In a prospective study of 252 patients by Robinson et al, the recurrence rate after 5 years reached 86.6% in patients aged 15 to 20 years, 73.8% in patients between 21 and 25 years of age, and 46.8% in patients between 26 and 30 years of age. Participation in contact and overhead throwing sports and higher sporting levels also increases the risk of recurrence. Management options in patients with a first-time shoulder dislocation include non-operative and operative approaches. Anterior dislocations often injure the anterior and inferior glenoid labrum, described as the Bankart lesion. This lesion was observed arthroscopically in 94% to 100% of patients and often result in long-term instability. Thus, there is debate as to whether arthroscopic Bankart repair should be routinely performed in patients after a first-time anterior shoulder dislocation. Historically, non-operative treatment has been the most common method of managing first-time dislocations. Additionally, for young athletes, non-operative treatment is often advocated in season to allow for rapid return to sport despite concerns regarding recurrent instability. Owens et al. demonstrated that non-operative management of an in-season shoulder dislocation can allow a return to sports in as little as 7 to 21 days, however early return increased the risk for further instability episodes, particularly in throwing or overhead athletes. Another study found that although 88.6% of 15- to 25- year-old athletes undergoing non-operative management returned to sport, 71.4% experienced recurrent dislocations. Given recent research and limited available evidence over the past 10 years, surgical management has been suggested as a potentially more reliable method to prevent further dislocations and improve patient outcomes when compared with non-operative management. Arthroscopic soft tissue repair (Bankart repair) has become increasingly popular given the advancement in surgical technique allowing for a minimally invasive and reliable improvement in instability with a low risk of complication. The high recurrence rate in younger patients may justify offering surgical treatment after the first episode of FTD. A recent systematic review by Hurley et al. found arthroscopic Bankart repair resulted in a 7-fold lower recurrence rate and a higher rate of return to play than conservative management. Current surgical practice however is generally consideration for surgical management only if further instability or recurrence has occurred. Recurrence however increases a patient's risk of further injury to the humeral head and glenoid - potentially resulting in poorer outcomes. Although some studies show arthroscopic treatment after first episodes of FTD in younger patients results in low dislocation rates, such treatment is not universally recognized or practiced. Additionally, concern regarding overtreatment exists - a network meta-analysis by Kavaja et al. found for patients 47% of patients receiving non-surgical management did not experience further shoulder dislocations. Significant controversy therefore exists regarding optimal management of this widespread condition. Need for a Pilot Study Prior to a Large Trial A pilot study is needed prior to a large trial to determine the feasibility of a larger trial in terms of ability to recruit across clinical sites, adherence to study protocol and ability to follow participants for 24 months. Primary objective is to examine the feasibility of a larger trial. Feasibility objectives include: 1. Ability to recruit across multiple clinical sites. 2. Ability to follow participants for 24 months. 3. Ability to operate on patients within 3 months following enrollment. 4. Assessment of crossovers. Secondary objectives: compare arthroscopic capsuloligamentous repair vs. non-surgical intervention on: 1. Recurrent shoulder dislocations up to 24 months' post-treatment. 2. Symptoms of instability without dislocation up to 24 months post treatment. 3. Clinical outcomes measured by Western Ontario Shoulder Instability (WOSI) Index, American Shoulder and Elbow Society (ASES) score, Shoulder Activity Scale, EQ-5D, Visual Analog Scale (VAS) Pain Score, and Patient Satisfaction questionnaire. 4. Physical examination: range of motion, stability. 5. Return to previous level of activity and work. 6. Safety, shoulder-related complications and serious adverse events. The investigators propose a multi-centre pilot RCT of 50 participants across Canada, United States, South America and/or Europe to compare the effect of arthroscopic surgical stabilization (Bankart procedure) and non-operative management (physical therapy) in patients with a post-traumatic first-time shoulder anterior dislocation. Eligible and consenting participants will be followed-up by the site for 24 months. Outcomes will be assessed at 6 weeks, 6 months, 12 months, and 24 months post-treatment. Eligible participants will be randomized to one of two treatment groups: - Arthroscopic capsuloligamentous repair (Bankart +/- Remplissage Procedure; intervention group) - Non-operative management (physical therapy; control group) Once participants have provided informed consent, baseline demographics, relevant medical history, and details regarding their diagnosis will be collected from the participant, the attending surgeon, their medical record and through physical examination. Participants will also complete The Western Ontario Shoulder Instability Index (WOSI), the American Shoulder and Elbow Surgeons questionnaire (ASES), EQ-5D, patient satisfaction scale at the time of enrolment. After surgery, surgical and peri-operative details will be collected from the attending surgeon and the participant's medical records. Adverse events occurring during the surgical procedure or perioperative period will also be documented. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05715021
Study type Interventional
Source McMaster University
Contact Miriam Garrido Clua, MSc
Phone 905-522-1155
Email mgarrido@stjoes.ca
Status Recruiting
Phase N/A
Start date July 12, 2023
Completion date March 1, 2027

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