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Of these, the plantaris muscle is reported to present a particularly high range of morphological variations. The muscle, passing distally throughout the length of the lower leg, consists of a small muscle belly and a long, thin tendon. It originates, traditionally, on the popliteal surface of the femur and the knee joint capsule, and then inserts to the calcaneal tuberosity. It has been suggested that mid-portion Achilles tendinopathy may be caused by certain plantaris tendon morphologies. This case report describes a new anomalous plantaris tendon insertion, closely related to the Achilles tendon. It comprise four distinct insertions and one direct merge with the calcaneal tendon. The current classification should be extended to accommodate such \u2018rare cases\u2019 to facilitate more successful Achilles tendinopathy treatment.<\/jats:p>","DOI":"10.1007\/s12565-020-00540-4","type":"journal-article","created":{"date-parts":[[2020,4,4]],"date-time":"2020-04-04T15:03:40Z","timestamp":1586012620000},"page":"553-558","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":15,"title":["A highly complex variant of the plantaris tendon insertion and its potential clinical relevance"],"prefix":"10.1007","volume":"95","author":[{"given":"K.","family":"Kurtys","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"B.","family":"Gonera","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"\u0141.","family":"Olewnik","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"P.","family":"Karauda","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"M.","family":"Polguj","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2020,4,4]]},"reference":[{"key":"540_CR1","doi-asserted-by":"publisher","DOI":"10.16965\/ijar.2016.506","author":"SN Ahmed","year":"2017","unstructured":"Ahmed SN, Murudkar PK, Ahmed K (2017) A morphological study of plantaris muscle and its surgical perspective. 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