Reverse Shoulder Arthroplasty With or Without Concomitant Latissimus and Teres Major Transfer for Shoulder Pseudoparalysis With Teres Minor Dysfunction

Study Overview
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Brief Summary
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The overall objective of this study is to compare the clinical benefit and safety of two different surgical techniques of primary reverse total shoulder arthroplasty for the treatment of shoulder pseudoparalysis from chronic rotator cuff disease with associated teres minor dysfunction. The first surgical technique includes a concomitant latissimus and teres major transfer (transfer group) and the second technique does not include a concomitant latissimus and teres major transfer (control group).

Official Title
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Reverse Shoulder Arthroplasty With or Without Concomitant Latissimus and Teres Major Transfer for Shoulder Pseudoparalysis With Teres Minor Dysfunction: A Prospective, Randomized Investigation

Conditions
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Osteoarthritis of the Shoulder

Intervention / Treatment
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* Procedure: Transfer group
* Procedure: Control group


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Shoulder pseudoparalysis due to chronic rotator cuff dysfunction with or without glenohumeral arthritis. Chronic rotator cuff tear with severe retraction, atrophy, fatty infiltration. Active forward elevation of less than 90 degrees Teres minor dysfunction Positive lag and hornblower sign Grade 2 or greater fatty infiltration of the teres minor and infraspinatous seen on MRI Able to attend scheduled office visits Meet all criteria to have a latissimus and teres major transfer Exclusion Criteria: Revision arthroplasty Previous shoulder infection Neuro-muscular disorder (ie: Parkinson's) Advanced dementia

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: Transfer group<br>The first surgical technique includes a concomitant latissimus and teres major transfer (transfer group). | Procedure: Transfer group<br> <br> |
| Active Comparator: Control group<br>The second technique does not include a concomitant latissimus and teres major transfer (control group). | Procedure: Control group<br> <br> |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| ADLER Score | Activities of Daily Living and External Rotation (ADLER) Score: This tool measures patients' ability to do various tasks on a daily basis. | 2 Year | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| DASH Score | Disabilities of the Arm, Shoulder, and Hand score | 1 Year, 2 Year | 
| ASES score | American Shoulder and Elbow Surgeons Score | 1 Year, 2 Year | 
| SF-12 Score | General Health Outcome score | 1 Year, 2 Year | 
| Range of Motion | Shoulder range of motion | 1 Year, 2 Year | 
| X-Ray Measurements | X-ray measurements from the anteroposterior (AP) and axillary views of the shoulder. | 1 Year, 2 Year | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Reverse total shoulder