From: High-energy extracorporeal shock wave therapy for nontraumatic osteonecrosis of the femoral head
Improved | Unchanged | Progressed | Collapsed | |
---|---|---|---|---|
ARCO stage I | ||||
Ia | 2 | 5 | 0 | 0 |
Ib | 1 | 0 | 0 | 0 |
Ic | 0 | 0 | 0 | 0 |
Total | 3 | 5 | 0 | 0 |
ARCO stage II | ||||
IIa | 0 | 1 | 1 | 0 |
IIb | 6 | 3 | 3 | 1 |
IIc | 5 | 3 | 6 | 2 |
Total | 11 | 7 | 10 | 3 |
ARCO stage III | ||||
IIIa | 0 | 1 | 3 | 1 |
IIIb | 0 | 0 | 1 | 1 |
IIIc | 0 | 0 | 3 | 3 |
Total | 0 | 1 | 7 | 5 |