TABLE 1.
Age, y | Mechanical Lateral Distal Femoral Angle, deg | Medial Proximal Tibial Angle, deg | Mechanical Axis Deviation, mm | ||||||
---|---|---|---|---|---|---|---|---|---|
Patient | Sex | Chronological | Bone | Surgical | Nonsurgical | Surgical | Nonsurgical | Surgical | Nonsurgical |
1 | M | 9.7 | — | 85 | 86 | 86 | 86 | 0 | –1 |
2b | M | 10.3 | 12.0 | 86 | 87 | 87 | 89 | 2 | 2 |
3 | M | 11.1 | — | 88 | 90 | 90 | 87 | 1 | –1 |
4 | M | 12.0 | 12.5 | 86 | 88 | 89 | 87 | 1 | –1 |
5 | F | 12.2 | 13.5 | 83 | 85 | 88 | 86 | 1 | 1 |
6 | M | 12.3 | 12.5 | 85 | 87 | 87 | 88 | 0 | 1 |
7 | M | 12.3 | — | 88 | 87 | 87 | 89 | 1 | 0 |
8 | F | 12.3 | 12.0 | 85 | 85 | 80 | 83 | –1 | –1 |
9 | M | 12.4 | 13.0 | 81 | 86 | 87 | 84 | 2 | –1 |
10 | M | 12.8 | 12.5 | 83 | 84 | 88 | 88 | 1 | 2 |
11 | M | 13.1 | 14.0 | 85 | 87 | 90 | 85 | 1 | –2 |
12 | M | 13.2 | 15.0 | 88 | 87 | 89 | 89 | 0 | 1 |
13 | M | 13.3 | 14.0 | 86 | 86 | 82 | 84 | –2 | –1 |
14 | M | 13.5 | 13.0 | 93 | 92 | 94 | 92 | 2 | 4 |
15 | M | 13.5 | 14.0 | 85 | 86 | 84 | 85 | –1 | –1 |
16 | F | 13.7 | 15.0 | 88 | 87 | 88 | 88 | 0 | 0 |
17 | F | 14.1 | — | 85 | 86 | 83 | 83 | –1 | –1 |
18c | M | 14.4 | 14.0 | 86 | 83 | 88 | 86 | 10 | 10 |
19 | M | 14.4 | 15.0 | 84 | 86 | 79 | 80 | –2 | –3 |
20 | M | 14.6 | 12.5 | 83 | 83 | 87 | 84 | 2 | 0 |
21d | F | 14.7 | — | 87 | 87 | 89 | 94 | 1 | 2 |
22 | M | 14.8 | 16.0 | 86 | 87 | 88 | 89 | 1 | 1 |
23 | F | 15.0 | 13.0 | 87 | 88 | 87 | 87 | 0 | 1 |
Median | 86 | 87 | 87 | 87 | 1 | 0 | |||
Range | 81 to 93 | 83 to 92 | 79 to 94 | 80 to 94 | –2 to 10 | –3 to 10 | |||
P value | .177 | .562 | .453 |
aNegative values denote varus positioning. F, female; M, male.
bPatient had a 2.2-cm leg-length difference (operative > nonoperative).
cPatient demonstrated bilateral physiological valgus.
dPatient had a 1.2-cm leg-length difference (operative > nonoperative).