Gouty Tophi Caused Limited Knee Range of Motion: A Case Report
Chusak Kijkunasathian MD*, Patarawan Woratanarat MD, PhD*, Nadhaporn Saengpetch MD*
Affiliation : * Department of Orthopaedics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
Background : Gout is a disease of purine metabolism characterized by monosodium urate crystal deposition.
Gouty tophi can mimic many conditions such as infection or neoplasm.
Objective : We descriptively presented a case of a 29-year-old male with gouty toph. Data was obtained from
patient chart. This patient presented with limited knee joint range of motion after sport injury. Arthroscopic
examination was performed in order to confirm the diagnosis of the meniscal injury.
Results : The result showed the synovium with white toothpaste-like chalky urate crystals in the joint cartilage.
Conclusion : An atypical presentation of gouty tophi can sometime mislead to diagnose an internal derangement
of the knee.
Keywords : Gout, Tophi, Arthroscopy, Knee, Limit range of motion, Locking
