артроскопия голеностопного сустава, задний импиджмент-синдром голеностопного сустава, os trigonum, отросток stieda, arthroscopy, posterior ankle impigement, stieda process, Orthopedic surgery, RD701-811

35 posterior ankle arthroscopies for posterior ankle impingement were performed within the period of time between January 2014-April 2015. Radiological investigation and MRI were held preoperatively. The examinations and operations revealed the following findings: os trigonum 21 (60%), posterior lateral fracture 6 (17%), Stieda process 8 (23%). The patients were tested on the scale of AOFAS pre and post-operatively. In comparison with preoperational period all the patients recognized the decrease or full disappearance of pain syndrome as well as functional improvements (AOFAS 59,8 preoperatively to 93,9 2 months postoperatively). The posterior ankle arthroscopy is an efficient and relatively safe method for posterior ankle impingement treatment which works efficiently to eliminate or decrease pain syndrome and helps to recover the function of plantaris.