Patient No | Stage III Volume | Stage I Volume | |||||
---|---|---|---|---|---|---|---|
cm3 | % | cm3 | % | ||||
1 | 16.3 | 39.2 | 6.2 | 13.9 | |||
2 | 10.3 | 24.8 | 8.5 | 19.1 | |||
3 | 12.8 | 19.1 | 4.3 | 6.6 | |||
4 | 23.9 | 57.5 | 13.8 | 21.1 | |||
5 | 26.8 | 64.4 | 15.4 | 23.5 | |||
6 | 26.2 | 40.1 | 16 | 29.4 | |||
7 | 20.3 | 31 | 21.2 | 32.4 | |||
8 | 13.3 | 20.3 | 8.8 | 17.3 | |||
9 | 16.9 | 25.8 | 13.8 | 27.1 | |||
10 | 12 | 18.3 | 4.6 | 7 | |||
11 | 32 | 36.7 | 15.4 | 30.2 | |||
12 | 18.5 | 21.2 | 3.1 | 3.8 | |||
13 | 38.8 | 59.3 | 20 | 34.5 | |||
14 | 21.2 | 32.4 | 17 | 26 | |||
15 | 26.2 | 40.1 | 12 | 18.3 | |||
16 | 43.5 | 38.5 | 5.9 | 6.8 | |||
17 | 43.5 | 38.5 | 7.5 | 9.1 | |||
18 | 29.6 | 51.1 | 10 | 15.4 | |||
19 | 29 | 44.3 | 7.5 | 13 | |||
20 | 23.2 | 40.1 | 14.6 | 37.6 | |||
21 | 13 | 19.9 | 4.4 | 6 | |||
22 | 27.6 | 40.7 | 12.5 | 14.4 | |||
23 | 20 | 30.6 | 3.3 | 6.1 | |||
24 | 6 | 9.2 | 1 | 2.4 | |||
25 | 36.1 | 39.2 | 12.4 | 27.8 | |||
26 | 36.7 | 56.1 | 5.5 | 11.5 | |||
27 | 33.8 | 51.7 | 7.3 | 13.4 | |||
28 | 25.4 | 30.8 | 8 | 14.7 | |||
29 | 43.6 | 39.1 | 15.6 | 17 | |||
30 | 22.5 | 34.4 | 14.6 | 22.3 |
For all the data, cm3 = the volume of osteonecrosis in cm3; % = the percentage of the femoral head affected by osteonecrosis; the volume of the femoral head is not the same on each side as determined by the radius measured on each magnetic resonance imaging scan.