Clinical Research Directory

Inclusion Criteria: * Patients who, after having received information about the design, the purposes of the study, the possible risks that may arise from it, and who may at any time deny their collaboration, give their written consent to participate in the study. * \>18 years * Patients who present: * Symptomatic ruptures of the supraspinatus muscle (SE) with or without involvement of the infraspinatus (IE) with anteroposterior size of the rupture of 1 to 4 cm. * With less than 3cm of retraction, * With the absence of severe muscular atrophy confirmed by magnetic resonance imaging or CT (Absence of Goutalier grade I or II atrophy in muscle mass). MRI or CT must have been performed at most 6 months before the intervention. * That it be confirmed during the exploratory arthroscopy at the beginning of the intervention. * That after repair a coverage of the native footprint of the tendon of at least 80% is obtained * No presence of rupture that requires repair in the tendons of the subscapularis muscles or minor round * Understand the purpose of the study and be available for regular hospital visits. * Negative urine pregnancy test performed in the 7 days prior to the start of study treatment in premenopausal women or \<2 years after menopause Exclusion Criteria: * Pregnancy or planning to become pregnant during the course of the study. * SE tendon tears of more than 3cm retraction * Tendon ruptures of the SE and IE muscles with anteroposterior size of the rupture greater than 4 cm. * SE and / or IE tendon ruptures that are considered irreparable or only partially repairable at the time of the intervention * Presence of ruptures of the subscapularis and / or minor round tendons * Presence of grade III or IV Goutallier atrophy in the supraspinatus muscle mass * History of other orthopedic pathologies in the affected shoulder (previous shoulder surgeries, fractures, tendon re-ruptures of the supraspinatus or other tendons, rheumatic diseases, septic arthritis, ...)