Abstract
Primary synovial osteochondromatosis (PSO), a seldom-seen synovial proliferative disease involving chondral metaplasia, presents a unique challenge when affecting the ankle joint. Controversy exists regarding whether a combined posterior-anterior approach with total synovectomy is necessary to avert recurrence or malignancy. An 18-year-old Caucasian male presented to the outpatient clinic with clinical and imaging findings indicative of a stage III PSO. The surgical intervention involved a combined posterior-anterior arthroscopic approach with the removal of multiple loose bodies and complete synovectomy, resulting in complete relief of symptoms without recurrence at the 12-month follow-up. Pathological examination confirmed the diagnosis. The management of PSO in the ankle joint using a combined posterior-anterior arthroscopic approach with complete synovectomy demonstrated effectiveness in this case. Regular follow-ups are essential for monitoring long-term outcomes and detecting potential recurrence or malignant transformation.
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