Could a shot of your own fat make rotator cuff surgery last longer?

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Age \> 18 years * Full-thickness supraspinatus and infraspinatus tendon tears (C1, C2, and C3 according to the SCOI classification) * Indication for arthroscopic rotator cuff repair * Informed consent to participate in the study * Informed consent to participate for the duration of the study Exclusion Criteria: * Partial rotator cuff tendon tears (A1, A2, A3, B1, B2, and B3 according to the SCOI classification) * Massive rotator cuff tear (C4 according to the SCOI classification) * Subscapularis tendon tear (grade III, IV, or IV according to Lafosse classification) * Associated anterior, posterior, or multidirectional shoulder instability * Indication for repair of a SLAP lesion of the biceps anchor * Grade III or IV muscle atrophy of the supraspinatus and infraspinatus tendons (according to Goutallier or Fuchs classification) * Intra-articular hyaluronic acid or corticosteroid infiltration within 3 mo from the planned surgical procedure * Medical comorbidities contraindicating arthroscopic shoulder surgery * Local (shoulder, abdominal region, gluteal region) or systemic infection, osteomyelitis, or sepsis * Diabetes mellitus, untreated thyroid disease, chronic kidney disease, rheumatoid arthritis * Immunodeficiency * Chronic disorders involving coagulation, platelet aggregation, or severe coagulopathy * Severe cardiovascular disease * Stroke or acute cardiovascular event within 6 mo from the planned surgical procedure * Weight loss for any cause .30 kg in 12 mo or .10 kg in 12 mo without a cause * Eating disorders or body dysmorphic disorder * Varices, phlebitis, or scars next to the planned adipose tissue harvesting site * Alcohol/drug addiction or psychiatric disease compromising compliance with postoperative protocols * Pregnancy or breastfeeding women * Informed consent not accepted