Table 1 Baseline characteristic of participants
Characteristic | Without popliteal cyst (n = 795) | With popliteal cyst (n = 105) | P |
|---|---|---|---|
Age, years | 62.2 (7.3) | 63.2 (8.0) | 0.18* |
Female gender, % | 49.9 | 47.6 | 0.65 |
Body mass index, kg/m2 | 27.6 (4.5) | 27.9 (4.9) | 0.53* |
WOMAC knee pain | |||
Weight-bearing, 0 to 27 mm | 4.7 (4.9) | 5.8 (5.0) | 0.03* |
Non-weight-bearing, 0 to 18 mm) | 3.2 (4.7) | 3.1(4.7) | 0.95* |
Total pain, (0 to 45 mm | 5.1 (5.0) | 6.0 (4.9) | 0.07* |
Prevalence of bone marrow lesions, % | 34.0 | 40.0 | 0.23 |
Prevalence of osteophytes, % | 8.2 | 16.2 | 0.01 |
Medial tibiofemoral JSN, % | 52.6 | 54.5 | 0.30 |
Lateral tibiofemoral JSN, % | 23.4 | 27.3 | 0.34 |
Cartilage defect, ≥2, % | |||
Medial tibial | 20.4 | 80.4 | <0.001 |
Lateral tibial | 15.3 | 28.6 | 0.01 |
Medial femoral | 19.7 | 31.4 | <0.001 |
Lateral femoral | 9.6 | 15.2 | 0.01 |
Patellar | 38.9 | 49.5 | 0.01 |
Effusion, WORMS ≥1, % | 25.9 | 30.5 | 0.56 |
Subgastrocnemius bursitis, grade ≥1, % | 9.7 | 36.2 | <0.001 |