Immobilization After an Anterior Glenohumeral Joint Dislocation With a Bankart Lesion

Inclusion Criteria: * \> 18 years old * \< 40 years old * anterior glenohumeral joint dislocation proved by radiography * dislocation needing a reduction manoeuvre * home close to evaluation site for 24 months follow-up visits * signed consent form Exclusion Criteria: * associated fracture * Hill-Sachs lesion = or \> than 30% * neurovascular deficit * hypermobility * pre-existing instability of the injured shoulder * systemic neurological disease * allergy to gadolinium * functional sequel to the shoulder due to previous injury * incapacitated adult patient * minor patient * home far from evaluation site * refusal to sign the consent form