Table 2.

Intra-articular tophi sites and total number of tophi sites within the knee joint.

MRI findings	n (%)
Intra-articular tophi site
Infrapatellar fad & anterior joint recess	20 (76.9%)
Intercondylar fossae	22 (84.6%)
Tibial eminence	4 (15.4%)
Lateral rim of lateral femoral condyle	24 (92.3%)
Lateral rim of tibial plateau	15 (60.0%)
Medial rim of medial femoral condyle	16 (61.5%)
Medial rim of tibial plateau	15 (60.6%)
Total number of tophi sites
≥ 2	25 (96.2%)
≥ 3	23 (88.5%)
≥ 4	18 (69.2%)
≥ 5	13 (50.0%)
≥ 6	8 (30.8%)

Magnetic resonance imaging (MRI) was employed to identify tophi sites in 26 patients.

Data are expressed as number (percentage).