Influence of an Anterior Latarjet-type Abutment Operation on Scapular Dyskinesia and the Muscular Stabilization Mechanisms of the Scapula (DyScapLat)

Study Overview
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Brief Summary
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The aim of this study is to assess the influence of anterior abutment surgery using the Latarjet method on the kinematics of the scapula. The sub-objectives will be to show that Latarjet-type surgery does not lead to scapular dyskinesia and modification of muscle activity compared to a control group that has not undergone an operation.

Official Title
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Influence of an Anterior Latarjet-type Abutment Operation on Scapular Dyskinesia and the Muscular Stabilization Mechanisms of the Scapula (DyScapLat)

Conditions
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Latarjet, Scapular Dyskinesis

Intervention / Treatment
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* Procedure: Latarjet method
* Other: Different arms exercices


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Patient Group: Male between 18 and 40 years-old Practice a regular sports activity before the injury (s) requiring surgery Present the clinical criteria leading to anterior abutment surgery using the Latarjet method Surgery performed by surgeons from the Jean-Mermoz Private Hospital (69008 Lyon) Have followed a post-surgery self-rehabilitation program Control group: Male between 18 and 40 years-old Practice a regular sports activity Both group: oPatient having signed an informed consent o Subject affiliated or beneficiary of a social security scheme Exclusion Criteria: Patient group: Have another shoulder pathology on the side of the operated limb or on the contralateral side Present a constitutional hyper laxity Have stiffness or recurrence of dislocation of the shoulder post-surgery Have a body mass index greater than 30 kg / m² (to ensure sufficient accuracy to measure the movements of the scapula) Wear a pacemaker or any other metal device (e.g. patch with metal material) Present a contraindication to the use of measuring devices (intolerance to a weak electromagnetic field) Control group: Present during the study or have presented in the past any musculoskeletal pathology in the right or left shoulder (WOSI or WORC score greater than 250). Have a body mass index greater than 30 kg / m² (to ensure sufficient accuracy to measure the movements of the scapula) Wear a pacemaker or any other metal device (e.g. patch with metal material) Present a contraindication to the use of measuring devices (intolerance to a weak electromagnetic field) Both group : o Protected subject: adult under guardianship, curatorship or other legal protection, deprived of liberty by judicial or administrative decision

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 40 Years

Sexes Eligible for Study
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Male

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Other
Allocation: Non-Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Patient requiring anterior abutment surgery by Latarjet method<br> | Procedure: Latarjet method<br>* This operation consists of fixing a bone graft<br>Other: Different arms exercices<br>* Perform 5 elevation movements in each of the elevation planes (sagittal, scapular and coronal) with the right and left arms Perform 5 circumduction movements with the right and left arms Maintain a weight of 1kg twice for 5 seconds with the arms at 90 ° of elevation.<br>|
| Active Comparator: Healthy volunteers<br> | Other: Different arms exercices<br>* Perform 5 elevation movements in each of the elevation planes (sagittal, scapular and coronal) with the right and left arms Perform 5 circumduction movements with the right and left arms Maintain a weight of 1kg twice for 5 seconds with the arms at 90 ° of elevation.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Difference in position of the scapula (tilt, rotation and bell) between the pre and post-test measured in the control group | For electromyographic analysis, the signals will be filtered, smoothed and normalized to obtain a percentage of activation relative to that measured during submaximal voluntary contractions. | 4 months |