Inclusion Criteria:  Chronic pain (existing for more than three months at the time of examination) in the shoulder associated with the following pathology:  rotator cuff injury adhesive capsulitis arthrosis of the shoulder joint arthrosis of the acromioclavicular joint subacromial impingement syndrome a history of arthroscopic surgery Signed informed consent to participate in the study Lack of indications for shoulder surgery Age> 18 years old 5 The positive effect of the test blockade of the suprascapular, axillary and lateral thoracic nerves with a local anesthetic (reduction of the pain level from the baseline according to NRS by at least 50%)  Exclusion Criteria:  Rotator cuff calcific tendinopathy infectious arthritis Instability of the shoulder joint cervical radiculopathy contraindications to local anesthetics coagulopathy and anticoagulant therapy pregnancy oncology the impossibility of subjective assessment of the level of pain and function of the joint