• O Morath, E J Kubosch, J Taeymans, J Zwingmann, L Konstantinidis, N P Südkamp, and A Hirschmüller.
• Department of Orthopedics and Trauma Surgery, Medical Center - Albert-Ludwigs-University of Freiburg, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Germany.
• Scand J Med Sci Sports. 2018 Jan 1; 28 (1): 4-15.

AbstractChronic painful Achilles tendinopathy (AT) is a common disorder among athletes. Sclerotherapy (ST) and prolotherapy (PT) are two promising options among the numerous other conservative therapies. As their efficacy and potential adverse effects (AE) are still unclear, we systematically searched, analyzed, and synthesized the available literature on ST and PT for treating AT. Electronic databases, Google Scholar and articles' reference lists were searched according to PRISMA guidelines. Eligibility criteria were set up according to the PICOS-scheme including human and animal studies. Three authors independently reviewed the results and evaluated methodological quality (Coleman Methodology Score and Cochrane Risk of Bias Assessment). The initial search yielded 1104 entries. After screening, 18 articles were available for qualitative synthesis, six of which were subjected to meta-analysis. The mean Coleman Score of the 13 human studies was 50. Four RCTs were ranked as having a low risk of selection bias. Three of those reported a statistically significant drop in the visual analog scale (VAS) score, one a significant increase in the VISA-A Score. 12 of 13 human studies reported positive results in achieving pain relief and patient satisfaction, whereas only one study's finding differed. Meta-analysis revealed an unambiguous result in favor of the intervention (weighted mean difference D=-4.67 cm, 95% CI -5.56 to -3.76 cm [P<.001]). Only one serious AE and two minor AEs were reported in the entire literature. This systematic review suggests that ST and PT may be effective treatment options for AT and that they can be considered safe. Long-term studies and RCTs are still needed to support their recommendation.© 2017 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

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