Study of the Functional Result of the Reinsertion of the Subscapular in Reverse Shoulder Prostheses According to the Healing of the Subscapular

Study Overview
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Brief Summary
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This study is based on the hypothesis that the functional result is better if the subscapularis is reinserted and healed. The originality of the study therefore consists in systematically monitoring the healing of this tendon postoperatively, with sufficient follow-up, by ultrasound and by an intra-tendon marker, in order to differentiate the result depending on whether the tendon is healed or not.

Official Title
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Study of the Functional Result of the Reinsertion of the Subscapular in Reverse Shoulder

Conditions
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Reverse Shoulder Prothesis, Healing of the Subscapularis

Intervention / Treatment
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* Procedure: Ultrasound


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Men or women over 18 years old Patient with an indication of reverse prosthesis for cuff rupture, or eccentric omarthrosis, or omarthrosis without cuff rupture but with posterior eccentricity Patient with a normal subscapularis preoperatively Patient benefiting from a social protection insurance Patient having signed the free and informed consent Exclusion Criteria: Patient with an indication of anatomical prosthesis Patient with an abnormal subscapularis preoperatively Patient operated for a revision of prosthesis Patient with an indication for prosthesis on fracture sequelae Patient with an indication for prosthesis on fracture Patient participating in another clinical study Protected patient: adult under guardianship, curatorship or other legal protection, deprived of liberty by judicial or administrative decision Pregnant, breastfeeding or parturient woman Patient hospitalized without consent.

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: Diagnostic
Allocation: Non-Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Patient with effective tendon healing<br> | Procedure: Ultrasound<br>* Ultrasound to visualize the intra tendinous marker. If this is in place, healing is effective. On the other hand, if it has migrated, there is no scarring.<br>|
| Active Comparator: Patient without tendon healing<br> | Procedure: Ultrasound<br>* Ultrasound to visualize the intra tendinous marker. If this is in place, healing is effective. On the other hand, if it has migrated, there is no scarring.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Mobility of internal rotation evaluation | The mobility of internal rotation will be assessed with the level of medial rotation of the Constant score (0 to 100 points - 5 different themes - 11 items) | 12 months | 
| Tendon healing assessment | The healing will be evaluated by an ultrasound allowing to visualize the intra tendinous marker. If this is in place, healing is effective. On the other hand, if it has migrated, there is no scarring | 12 months |