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BackgroundLateral epicondylitis (LE) also known as tennis elbow is a common disease of middle-aged population. Surgery is a treatment of choice in patients not responded to the conservative management. Open and arthroscopic release are the two main choices for LE surgery; however, an overall consensus is not available. This study was aimed to compare the clinical outcomes after conventional open and arthroscopic procedures.MethodsAn electronic search of databases including, Medline, Web of Science, Embase, Cochrane Library, and Scopus was conducted to identify all eligible studies describing the post-operative clinical outcomes of patients with LE, up to October 2018. All studies considering the non-pediatric cases who received at least 6-month preoperative conservative treatment and were followed more than 6 months after surgery were included. Data on patient satisfaction, functional outcomes, pain, and complication rates, were extracted for each study. If appropriate, the meta-analysis was performed to combine the results for all outcomes that were reported in a minimum of 3 studies utilizing the same surgical technique.ResultsA total of 34 eligible articles including 15 open studies, 13 arthroscopic studies, and 6 studies in both techniques were enrolled. Studies were from different parts of the world with a whole sample size of 1508 cases. Various outcome measuring methods including Quick DASH and VAS, and different clinical outcomes were reported. The results indicated no significant difference between arthroscopic and open surgery methods in terms of VAS, DASH score, time for returning to work, overall outcomes, and patients' satisfaction (P >0.05). However, postoperative complications were significantly higher in the open group when compared with the arthroscopic procedure (57.3% vs 33.4% P=0.001).ConclusionThe present study suggests that despite no superiority for each techniques regarding the pain relief, subjective function, and better rehabilitation, arthroscopic method have been associated with less complications.

Clinical Outcomes of Open versus Arthroscopic Surgery for Lateral Epicondylitis, Evidence from a Systematic Review.