Rotation & Orientation 진행상황

The purpose of this study –To provoke the attention for the concept of orientation and rotation to orthopedic surgeons –Demonstrate the practical guideline for deformity correction by affine geometry.

3 simulations –Simplified motion of shoulder joint using affine geometry –Simplified cylinder model for deformity correction of a long bone –Proximal femoral derotational osteotomy(FDO) using 3D reconstruction model of femur

Internal Rotation Cutting plane D angle Valgus Extension D angle Valgus Extension D angle Valgus Extension D angle Valgus Extension D angle Valgus Extension D angle Valgus Extension D angle Valgus Extension D angle Valgus Extension D angle Valgus Extension D angle Valgus Extension D angle Valgus Extension D angle Valgus Extension

External Rotation of distal fragment intertrochanter 3D angle Varus Extension

진행방향

Deformity correction 에 대해.. –Preoperative planning –Intraoperative guidence

보행모델에서 족부 디자인

Key joint?

Short lever arm

Operation for planovalgus

Operation for cavovarus

Key joint 로서 talonavicular joint 2 part foot model

Spasticity 에 따른 보행모델 적용

GMFCS level I

GMFCS level II

GMFCS level III

Spasticity 에 따른 보행 예측 수술 후 보행 예측