▼This OpenSurgiSim surgical module is part of the Global Surgical Training Challenge.

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This didactic material encompass the knowledge and principles of lower-limb deformity corrections required for both surgery planning and psychomotor skills as well as information of application of the external fixator implant required for psychomotor skills. The material is enriched with easy to understand schematic diagrams and annotated videos of real workshop conducted by an expert surgeon. The material is listed in the order in which they should be learned, as follows:

• Line Diagrams of Long Bones
• Joint Center Points
• Axes of the Long Bones - Mechanical and Anatomical
• Joint Orientation Lines
• Joint Orientation Angles
• Mechanical Axis Deviation (MAD) and Hip-Knee-Ankle angle (HKA)
• Malalignment and Malorientation
• Rules of Bone Osteotomy
• Mechanical and Anatomical Axis Planning
• Oblique Plane Deformity - Graphical method
• External Fixation Devices - Rail Fixator