Reproducibility of Functional Shoulder Tests for the Return to Sport of Patients Operated on Previous Shoulder Instability

Inclusion Criteria: Patient group : * Male patient * Between 18 and 30 years-old * Occurrence of the injury requiring surgery during a sports activity * Reduction of shoulder instability by the Latarjet technique * Surgery performed by surgeon from Santy orthopedic center (Lyon) * Patient's inclusion by decision of the surgeon during the 4 months postoperatively visit Healthy volunteer group : * Male patient * Between 18 and 30 years-old * Patient regularly practicing sport activity. Both groups : * Patient having signed an informed consent * Affiliated subject or beneficiary of a social security scheme Exclusion Criteria: Patient group : * Contra indication from surgeon * Having another pathology in the upper limbs * Present a constitutional hyperlaxity * Have stiffness or recurrence of dislocation of the shoulder post-surgery Healthy volunteer group : * Report a history of upper extremity pain / injury within the past 12 months * Report a history of orthopedic surgery on the upper limbs All participants : * Protected subject : adult under guardianship, guardianship or other legal protection, deprived of liberty by judicial or administrative decision * pregnant woman, breastfeeding, parturient