Influence of the Dominance of the Shoulder Stabilized by the Open Latarjet Procedure on the Functional Recovery of the Shoulder at 4.5 Months Postoperatively.

* Patients from two studies : "Reproducibility of functional tests of the shoulder for the return to sport of patients operated on anterior instability of the shoulder "CPP n ° 2018-A03013-52 and "Validation of the S-STARTS composite score to assess the functions of the shoulder and the patient's ability to return to sport after stabilization of the shoulder by the Latarjet procedure (VAL-S-STARTS)" MR3016020520 * healthy volunteers from two studies : "Reproducibility of functional tests of the shoulder for the return to sport of patients operated on anterior instability of the shoulder "CPP n ° 2018-A03013-52" and "Risk factors for shoulder dislocation in rugby players. Predictive validity of the S-STARTS composite score "MR4612110620 Inclusion criteria: Patients: o patient between 15 and 45 years old * Occurrence of the injury requiring surgery during a sports activity * Reduced shoulder instability by the open Latarjet procedure * Surgery performed by surgeons from the Santy Orthopedic Center (Lyon) * Inclusion by decision of the surgeon during the visit 4 months postoperatively Healthy volunteers : * volunteer between 15 and 45 years old * Practice a regular sporting activity Both groups: * Patient having signed an informed consent * Subject affiliated or beneficiary of a social security scheme Exclusion Criteria: Patient group: * Contraindication of the surgeon * Have another pathology in the upper limbs * Present a constitutional hyperlaxity * Have stiffness or recurrence of dislocation of the shoulder post-surgery Healthy volunteers : * Medical history of upper limb pain / injury within the past 12 months * Medical history of orthopedic surgery on the upper limbs Both groups: * Protected subject: adult under guardianship, curatorship or other legal protection, deprived of liberty by judicial or administrative decision