The aim of this first study is to investigate in a case series through sequential sonographic imaging, using Doppler ultrasonography, the postoperative morphology, especially vascularity and findings of neovascularity, after bursa augmentation in arthroscopic rotator cuff repair.

The outcome of rotator cuff (RC) reconstruction with and without bursa augmentation, considering also the inflammatory status of the bursa, will be systematically investigated for the first time. The influencing role of the inflammatory status of the bursa, of the RC tendon and the synovial membrane at the time of the operation on the tendinous healing rate, the patient-relevant outcome factors and the revision rate will be assessed. In a further approach, basic knowledge about the role of bursa inflammation and its influence in the development and regeneration of tendon pathologies shall be gained. The findings of the whole project could lead to improve tendon healing in the reconstruction of the rotator cuff, taking advantage of augmentation potential of the subacromial bursa.

Inclusion Criteria:

• Patient aged 18 years and older
• Patient with C-shaped posterosuperior rotator cuff tear (SSP / ± ISP, ± SCP Tear Lafosse ≤ 1 (SCP no repair, only debridement))
• Retraction ≤ 2 according to Patte
• Fatty infiltration ≤ 2 according to Goutallier
• Eligible for arthroscopic double row rotator cuff repair in Suture Bridge technique.
• Written informed consent

Exclusion Criteria:

• Legal incompetence
• Last subacromial cortisone infiltration ≤ 6 months
• Systemic rheumatologic-inflammatory disease
• Diabetes Mellitus
• Smoker