The goal of this interventional study is to demonstrate the benefit of combining filling of the posterosuperior notch of the humerus with a coracoid stop on the rate of return to sports at the same level as before at 12 months post-surgery.

The level of sport will be categorized as recreational, competitive, or professional.

This is a prospective, single-center, comparative study of two parallel randomized groups, using a single-blind design.

The patients included will be randomized into two groups with a 1:1 ratio: one group will undergo the filling technique, while the second group will not. The rest of the surgery will be similar.

Randomization will be stratified according to initial athletic level.

Inclusion Criteria:

• Adult patient affiliated with or entitled to social security coverage
• Patient who has received informed consent about the study and signed a consent form
• Patient presenting with previous shoulder instability associated with a compromising humeral lesion determined by CT scan measurement

Exclusion Criteria:

• Patient non-compliant with follow-up over 1 year
• Recurrence of a previously operated shoulder
• Patient under judicial protection, guardianship, or trusteeship.