Ultrasound Guied Percutaneus Electrical Nerve Stimulation on the suprascapular nerve and axillary nerve, along with a manual physical therapy protocol in patients with pain and lack of function after a shoulder surgery.

Only a physiotherapy protocol based on available evidence, applied to patients with pain undergoing shoulder surgery.

Intervention performed by needling in the vicinity of the peripheral nerves of the shoulder under ultrasound-guided control.

The Numeric Pain Rating Scale (NPRS) is a unidimensional, outcome measure of pain intensity in adults, including those with chronic pain due to rheumatic diseases.

The NPRS is a segmented numerical version of the visual analog scale (VAS) in which a respondent selects a whole number between zero and ten that best reflects the intensity of their pain.

The common format is a horizontal bar or line, and like the VAS, the NPRS is based on terms that describe the extremes of pain severity.

Therefore, the numerical rating scale consists of 11 points (NPRS), where values close to 0 reflect less pain and values close to 10 reflect greater pain.

This is a questionnaire that determines the degree of disability in the arm, shoulder and hand, providing the evaluator with a specific outcome measure of the upper extremity.

The questionnaire consists of 30 questions that are divided into several items: 21 of them evaluate a module on physical status, 6 on painful symptoms, and 3 final questions explore the patient's social environment. The sum of the scores for each of the items is used to calculate a final value that ranges from 0 (no disability) to 100 (most severe disability).

The Shoulder Pain and Disability Index (SPADI) was developed to measure shoulder pain and disability in both primary care with mixed diagnosis and surgical patient populations, including rotator cuff injuries, adhesive capsulitis, replacement surgery or shoulder prosthesis and in a large population study of painful shoulder symptoms.

SPADI is a self-completed questionnaire with 13 items that evaluate the level of pain and the degree of difficulty with activities of daily living in the use of the upper extremities. The pain subscale is made up of 5 items and the disability subscale is made up of 8.

The reliability of SPADI provides an average intraclass correlation coefficient of 0.89 (ICC 0.66-0.95) and a 95% CI. A Spanish version is available that demonstrated satisfactory psychometrics in populations with different shoulder disorders.