Proximal tibial osteotomy for genu varum: Radiological evaluation of deformity correction with a plate vs external fixator

Figure 1 Knee X-ray images. A: Caton-Deschamps Index (a/b) for evaluation of the patella height; B: Posterior proximal tibial angle.

Figure 2 High tibial osteotomy with plate and screws. A: Pre-operation; B: Post-operation.

Figure 3 High tibial osteotomy with external fixator. A and B: Before correction medial proximal tibial angle: 82, joint line obliquity angle: 2, mechanical axis deviation: 33 mm, lateral distal femoral angle: 90; C: After correction with external fixator; D: After removal of external fixator.