Table 3 Unexpected angulation of a mechanical axis of the lower extremity after femoral derotation osteotomy
From: Unexpected angular or rotational deformity after corrective osteotomy
Osteotomy site | External rotation of distal fragment | ||||||
|---|---|---|---|---|---|---|---|
10° | 20° | 30° | 40° | 50° | 60° | ||
Intertrochanter | 3D angle | 1.6 | 3.1 | 4.7 | 6.2 | 7.6 | 7.6 |
Varus | 1.4 | 2.8 | 4.4 | 6.0 | 7.5 | 7.5 | |
Extension | 0.8 | 1.3 | 1.6 | 1.6 | 1.3 | 1.3 | |