Table 2 The numbers at each angle in Group A, B, C, and D
Group A | Group B | Group C | Group D | |
|---|---|---|---|---|
0° flexion | 130 knees | 26 knees | 1 knee | 1 knee |
30° flexion | 41 knees | 52 knees | 10 knees | 55 knees |
60° flexion | 49 knees | 39 knees | 19 knees | 51 knees |
90° flexion | 44 knees | 29 knees | 18 knees | 67 knees |