Gout arthritis of the ankle successfully treated with arthroscopic debridement: A case report

Introduction: Gout is an inflammatory arthritis that causes acute pain due to the accumulation of uric acid crystals. Hyperuricemia primarily causes it, resulting in the deposition of monosodium urate crystals in and around joints. Gout can affect joints such as the metatarsophalangeal joint and the foot's talus bone. Treatment involves addressing hyperuricemia and managing symptoms with medications like febuxostat. Surgical treatment is crucial, especially in cases of chronic tophaceous gout or severe joint damage, including arthroscopic debridement, ankle arthrodesis, or total ankle arthroplasty.

Case presentation: A 32-year-old male with a history of hyperuricemia experienced pain in his left ankle for a year. The ankle was swollen and prone to pain when he walked. Magnetic resonance imaging (MRI) tests revealed the thickening and irregular shape of the anterior talofibular ligament (ATFL), suggesting a rupture. The arthroscopic operation revealed a crystal deposit, leading to the diagnosis of gout arthritis and subsequent debridement for the patient. Following the surgery, the patient experienced minimal pain, an improved range of motion, and a significant improvement in swelling within a week. The patient was able to walk with minimal assistance and without aid.

Discussion: Gout arthritis and ATFL injuries share common clinical features, including joint swelling, limited motion, and joint deformity. The presence of monosodium urate (MSU) crystals and inflammation in both conditions complicates diagnosis. Performing arthroscopic debridement surgery in gout arthritis presents challenges due to tophi and inflammation, as well as the risk of articular cartilage damage. Expertise is crucial for successful arthroscopic debridement, with patient selection, preoperative planning, and thorough removal of MSU crystals being key factors.

Conclusion: Thorough evaluation, patient selection, preoperative planning, joint identification, removal of MSU crystals, and comprehensive postoperative care are crucial for successful arthroscopic debridement for gout arthritis of the ankle.