Surgical Safety and Effectiveness in Orthopedics: Swiss-wide Multicenter Evaluation and Prediction of Core Outcomes in Arthroscopic Rotator Cuff Reconstruction

Inclusion Criteria: * adult patients * diagnosed with a partial or full-thickness rotator cuff tear using magnetic resonance imaging (MRI) * planned primarily surgical partial or complete repair by arthroscopic procedure * able to understand the content of the patient information/ consent form and give consent to take part in the project Exclusion Criteria: * surgical procedure for irreparable tears, i.e. muscle transfer, acromio-humeral spacer or superior capsular reconstruction * revision surgery (prior repair of the rotator cuff in the same shoulder) * planned open or mini-open reconstructions * patients with a language barrier hindering questionnaire completion (either in German, French, Italian or English) * patients unlikely to attend clinical follow-up * pregnancy * legal incompetence