Objective: To assess the outcome of arthroscopic release in patients with cronicalchronic lateral epicondylitis. Materials and methods:Arthroscopic release in three patients with lateral epicondylitis was performed. The Mayo Elbow Performance Index (or Mayo Elbow Performance score) was used pre and post surgical treatment. Sample: Two females and one male. The patients were principal labourers and not athletes. Patients had significant pain and pain was the principal symptom that affected the score of the performance index.Results: Scores on the performance index improved after surgery. No neurological complications were reported and early return to normal daily activities was noted. Conclusion:Arthroscopic treatment was an alternative safe and effective method for treating chronic lateral epicondiyitis in three cases. This method makes it possible to simultaneously scan the articulation to diagnostic and treatment associated diseases. It is necessary most wide assays and comparative studies for establish sure treatment protocols.

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