Fig. 4.

Flowchart of the treatment for diffused pigmented villonodular synovitis of the knee (the authors’ preferred treatment option, based on literature review).7, 14, 33, 34, 35, 36

Observation: The risk of recurrence should be assessed based on the degree of involvement of the anterior and posterior compartments of the knee joint, the effective resection capacity of all lesions, and the surgeon's experience in the treatment of these lesions.7, 14, 33, 34, 35, 36