Anterior Cruciate Ligament (ACL) Degeneratio Mucosa is a condition resulting from mucoid degeneration of ACL. Exact etiology is unknown, however ACL Degeneratio Mucosa impairs everyday functioning. In the literature there were some reports of treatment by ACL excision and subsequent reconstruction, however such treatment brings risk of deteriorated function. In this study the investigator will evaluate the technique of ACL "decompression" by the means of longitudinal incisions and evacuation of extrafibrous mucoid tissue.
patients with ACL degeneratio mucosa decided to undergo a surgical treatment
range of motion impairment caused by mucoid or cystic changes in ACL confirmed by MRI
non-adherence to the study protocol
active knee inflammation
range of motion impairment due to other extra- and intra-articular reasons