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The primary goal of this study was to present the biomechanical and long-term clinical results of recently developed minimally invasive Achilles tendon reconstruction technique.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Minimally invasive Achilles tendon reconstruction was applied to 8 foot and ankle cadaveric specimens as well as 18 patients with chronic Achilles tendon tears. Repaired cadavers were subjected to the biomechanical testing using a cyclic loading protocol. Patients with reconstructed Achilles tendon were subjected to the clinical, functional and isokinetic tests at 12\u00a0months after the treatment.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>All of tested Achilles cadaveric specimens survived 2 loading blocks (250 cycles of 10\u2013100\u00a0N load followed by additional 250 cycles of 10\u2013200\u00a0N load). With three specimens, it was possible to perform the third cyclic loading block with 20-300\u00a0N load and two specimens survived the fourth block with 20\u2013400\u00a0N load. Therefore, a mean number of 838 cycles (\u00b1178) within the range of 509\u20131000 was recorded. Two specimens which survived all 1000 cycles were pulled to failure at 25\u00a0mm\/s rate. The results obtained in the load to failure testing were as follows: 398\u00a0N and 608\u00a0N of maximum load. The results of functional heel rise endurance test and single leg hop for distance test indicated a decrease in the endurance and strength of the injured limb. However, the results of the weight-bearing lunge tests indicated no tendency for elongation of the Achilles tendon. A comparative analysis of the isokinetic test results for the non-injured and injured limb was revealed no statistically significant differences for every isokinetic test (n. s.), with significant difference for isometric strength parameters (<jats:italic>p<\/jats:italic>\u2009=\u20090.0006).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>The results of the biomechanical tests as well as 1-year extensive functional, clinical and isokinetic results of the minimally invasive technique for chronic Achilles tendon tears are encouraging. Patients returned to their normal physical activity, including sport pre-injury level in most cases.<\/jats:p><\/jats:sec><jats:sec><jats:title>Level of evidence<\/jats:title><jats:p>III<\/jats:p><\/jats:sec>","DOI":"10.1007\/s00167-019-05723-9","type":"journal-article","created":{"date-parts":[[2019,10,13]],"date-time":"2019-10-13T02:17:00Z","timestamp":1570933020000},"page":"305-311","update-policy":"http:\/\/dx.doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["Minimally invasive reconstruction technique for chronic Achilles tendon tears allows rapid return to walking and leads to good functional recovery"],"prefix":"10.1002","volume":"28","author":[{"given":"Pawe\u0142","family":"B\u0105kowski","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kinga","family":"Ciemniewska-Gorzela","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Krzysztof","family":"Tala\u015bka","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jan","family":"G\u00f3recki","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Dominik","family":"Wojtkowiak","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gino M. 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