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Gouty synovitis after total knee arthroplasty: a case report
L Crawford1, A Kumar, G J Shepard
1Department of Orthopaedics, Royal Bolton Hospital, Farnworth, Bolton, United Kingdom.
Journal of Orthopaedic Surgery (Hong Kong)
|December 29, 2007
Summary
Acute gouty synovitis can occur after total knee arthroplasty (TKA), even without a prior gout history. Identifying urate crystals in synovial fluid confirms the diagnosis, preventing unnecessary surgical revision for inflamed knees post-TKA.
Area of Science:
- Orthopedic Surgery
- Rheumatology
- Crystal-Induced Arthropathies
Background:
- Total knee arthroplasty (TKA) is a common orthopedic procedure.
- Post-operative knee inflammation can mimic various conditions.
- Gout is a known cause of joint inflammation, typically in patients with a history of hyperuricemia.
Observation:
- A case of acute gouty synovitis was observed following TKA.
- The patient had no prior history of gout or diagnosed hyperuricemia.
- Diagnosis was established through synovial fluid analysis.
Findings:
- Synovial fluid analysis revealed the presence of characteristic urate crystals.
- These crystals confirmed the diagnosis of acute gouty synovitis.
- The clinical presentation mimicked other inflammatory or infectious causes of knee effusion post-TKA.
Implications:
- Acute gouty synovitis is a rare but important consideration in the differential diagnosis of knee inflammation after TKA.
- Prompt diagnosis via crystal identification can prevent misdiagnosis and unnecessary surgical interventions.
- This case highlights the importance of considering crystal-induced arthropathy in post-arthroplasty joint effusions, irrespective of patient history.
