METHOD OF TREATING PROGRESSIVE AND TUMOUR-LIKE FORMS OF SYNOVIAL CHONDROMATOSIS WITH PRESENCE OF GONARTHROSIS WITH DISSEMINATED DAMAGE TO KNEE JOINT OF PATIENT Russian patent published in 2025 - IPC A61B17/56 

FIELD: medical science.

SUBSTANCE: invention refers to medicine, namely to traumatology and orthopaedics, and can be used for treating progressive and tumour-like forms of synovial chondromatosis with gonarthrosis accompanying patient’s disseminated knee joint injury. From a posterior approach to a knee joint according to Trickey, using a Z-shaped incision, skin and a subcutaneous fat layer are dissected, then a fascia. Common peroneal nerve, then a tibial nerve are visualised, separated and taken on a traction suture; a popliteal vascular bundle is visualised, which is separated and taken aside in the lateral or medial side. Posterior joint capsule is approached, and the new growth is excised together with free-lying or adherent surrounding tissues. Synovial membrane is excised, and the menisci are resected. Posterior and anterior cruciate ligaments, heads of gastrocnemius muscle, soleus muscle are excised. Wound is washed, a haemostasis is performed, a silicone drain tube is inserted and closed in layers. Extremity is fixed in an orthosis. Rehabilitation course is carried out with restoration of range of motions in affected knee joint to flexion by 60°, extension by 180°. In 2 months, second stage of surgical treatment is carried out, skin incision 14-15 cm long is performed in patient placed on back under spinal anaesthesia. Subcutaneous fat, fascia, muscles and joint capsule are incised. Anterior synovcapsulectomy is performed with removing chondromic bodies; menisci and an anterior cruciate ligament are resected; a fat body is resected; a haemostasis is performed. Wound is closed in layers, and an aseptic dressing is applied. Extremity is fixed. Rehabilitation measures are prescribed on 1st-2nd postoperative day. For 1-1.5 months patient wears the orthosis on affected knee joint. Crutches are used for ambulation; in the late postoperative period, the patient is prescribed a rehabilitation course with restoration of the range of motions in the involved knee joint.

EFFECT: method provides functional and motor recovery, higher rehabilitation potential, as well as higher patient’s quality of life ensured by preserving the anatomic position of the patient’s knee joint after the surgical management.

2 cl, 3 ex