To compare the functional and anatomical outcomes, and patient satisfaction and compliance between two different postoperative immobilization methods - abduction shoulder brace versus simple arm sling - following 2 common shoulder surgical procedures - rotator cuff repair (RCR) and reverse total shoulder arthroplasty (RTSA) through a prospective randomized clinical trial.
Scientific Background and Gaps Rotator cuff repair and reverse total shoulder arthroplasty are common procedures that aim to provide patients with less pain, better shoulder function, and overall improved quality of life. The number of these procedures performed annually has increased dramatically, and improved outcomes have been demonstrated for each intervention. Part of the success of these operations is dependent on postoperative rehabilitation and patient compliance. Shoulder immobilization versus early range of motion following each procedure has conflicting data, and recent studies have shown that the method of shoulder immobilization may not influence clinical outcomes. Previous studies, both clinical and biomechanical, have demonstrated that arm position following RCR impacts tension and stress placed on the repair, but few have shown whether this translates to improved patient outcomes. Some surgeons prefer simple arm slings for the above-named procedures, while others opt for the abduction brace. Multiple studies have shown the optimal shoulder position that places the least amount of tension on the RCR, or soft tissue envelope following RTSA, however there is no consensus as to the optimal postoperative immobilization technique that significantly affects patient outcomes. An antirotation sling is significantly cheaper than an abduction shoulder brace, and our anecdotal experience is that patients experience more difficulties with an abduction shoulder brace than an antirotation sling. Our study aims to determine whether patient outcomes are significantly affected by immobilization with an abduction brace or simple arm sling. Our hypothesis is that antirotation slings are no better or worse than shoulder abduction braces in regards to shoulder range of motion, satisfaction and compliance with the immobilization method, and pain. Study Rationale There is a lack of evidence regarding abduction braces versus simple arm slings for postoperative immobilization following rotator cuff repair and reverse total shoulder arthroplasty. A better understanding of outcomes between each device will allow for more options available to the patient and surgeon, as well as a potential for decreased cost to the patient as there is a substantial difference in cost between the two devices.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Donjoy Ultrasling IV
Donjoy shoulder immobilizer
University of Missouri
Columbia, Missouri, United States
Postoperative range of motion
Both active and passive range of motion will be measured in forward elevation, external rotation at the side, internal rotation at extension, external rotation at abduction, and internal rotation at abduction by the examiners using a handheld goniometer. Multiple time points are for assessing the changes in motion.
Time frame: Measured at 6 weeks, 12 weeks, 5 months, and 12 months following the index procedure.
Visual analog scale (VAS) pain score
Measures subjective pain; minimum 0, maximum 10 with 0 being a pain-free condition and 10 being the worst pain ever experienced
Time frame: Measured at 6 weeks, 12 weeks, and 5 months, and 12 months after surgery
American Shoulder and Elbow Surgeons (ASES) score
Measures patient's subjective shoulder function using a series of survey questions regarding subjective rating of range of motion, strength, use, and pain of the shoulder; minimum 0 to maximum 100 with 0 being the worst shoulder function and 100 being the best shoulder function
Time frame: Assessed at 5 and 12 months after surgery
Patient compliance 5-point Likert-type scale
Measure compliance with their assigned immobilization method measured using a 5-point Likert-type scale (Question: Did you wear the sling as instructed in the protocol? Not at all, occasionally, about a half of the time, for the most part, yes definitely)
Time frame: Assessed at 12 weeks after surgery
Patient satisfaction 5-point Likert-type scale
Measures overall patient satisfaction with their immobilization method using a 5-point Likert-type scale (Question: Are you satisfied with the immobilization method using the sling you wore? Not at all, not much, so-so, pretty much, yes definitely)
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Time frame: Measured at 12 weeks
Complications
Such as shoulder dislocations, wound healing issue, pain development at areas other than the operated shoulder due to the immobilization, etc
Time frame: Assessed at 12 months after surgery
QuickDASH (Disability of arm, shoulder, and hand) score system
Measures the extent of subjective disability of upper extremity; consisted of survey questions regarding subjective pain and function of the upper extremity; Minimum 0, maximum 100 with 0 being no disability and 100 being most severe disability)
Time frame: Assessed at 5 and 12 months after surgery