This is a post-marketing surveillance on Medacta Shoulder System

Inclusion Criteria:

• Patients older than 18 years
• Patient with one of the following diagnosis:

Primary osteoarthritis Secondary osteoarthritis Cuff tear arthropathy; insufficient rotator cuff Acute fracture (<21d) Rheumatoid or inflammatory arthritis Avascular necrosis Other posttraumatic condition Revision of shoulder arthroplasty

Exclusion Criteria:

• Patients with malignant diseases (at the time of surgery)
• Patients with proven or suspect infections (at the time of surgery)
• Patients with functional deficits other than dysfunction of the shoulder (at the time of surgery)
• Patients with known incompatibility or allergy to products materials (at the time of surgery)

Patients requiring TSA and who are suitable to receive Medacta Shoulder System will be proposed to take part to the current post-marketing surveillance study during their pre-operative visit.