Chawanpaiboon P.Voravitvet S.Juntharamussakarn C.Ganokroj P.Mahidol University2025-08-042025-08-042025-01-01Jbjs Case Connector Vol.15 No.3 (2025)https://repository.li.mahidol.ac.th/handle/123456789/111528Case: A 35-year-old man with known gouty arthritis of the right knee and an extension block was found to have persistent tophi and reduced range of motion despite urate-lowering therapy. Arthroscopic surgery excised nodules of tophi in the intercondylar notch and a large central osteophyte that had obstructed full knee extension. The patient achieved full knee extension and satisfactory functional outcomes at 1 year postoperatively. Conclusion: Arthroscopic surgery can be effectively used in gouty knees with an extension block, resulting in excellent outcomes.MedicineArticleSCOPUS10.2106/JBJS.CC.25.002312-s2.0-10501168920121603251