Table 2. Clinical characteristics of PVNS patients with AVN.
| Case no. | Gender | Age (Y) | Laterality | Ficat type | Alcohol abuse | Glucocorticoid history | Trauma history | Initial symptom | WBC (×109/L) | ESR (mm/h) | CRP (mg/L) | Affected site | Same joint |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Case 1 | Male | 16 | Right | II | No | No | No | Swelling, pain | 9.17 | 16 | 3.77 | Knee | No |
| Case 2 | Male | 28 | Left | IV | No | No | No | Pain | 8.13 | 4 | 0.17 | Hip | Yes |
| Case 3 | Female | 31 | Left | II | No | No | No | Pain | 7.23 | 6 | 1.75 | Hip | Yes |
| Case 4 | Female | 35 | Right | III | No | No | No | Pain | 7.59 | 70 | NA | Hip | Yes |
| Case 5 | Female | 35 | Bilateral | II | No | No | No | Pain | 5.15 | 50 | 7.91 | Hip | Yes |
| Case 6 | Female | 55 | Left | IV | No | No | No | Pain | 7.10 | 4 | 0.32 | Hip | Yes |
WBC = white blood cell count, ESR = erythrocyte sedimentation rate, CRP = C-reactive protein.
NA = not available, Y = year.
The cut-off values for serum WBC, ESR and CRP are 9.5 × 109/L, 15 mm / h, 5 mg / L, respectively.