Medical knowledge page data
Required time hours
Page data
Part of Deformity Correction Of Lower Limb Bones
Type Medical knowledge page
Keywords Orthopedic Surgery, Complex Bone Deformity, Lower-limb, Surgical Training, Surgical Simulation, X-ray planning, 3D Printing, Cloud software
SDG Sustainable Development Goals SDG03 Good health and well-being
Authors Amit Dinanath Maurya
Published 2021
License CC-BY-SA-4.0
Affiliations AlgoSurg Inc
Mangal Anand Hospital (Mumbai)
Global Surgical Training Challenge
Impact Number of views to this page. Views by admins and bots are not counted. Multiple views during the same session are counted as one. 112

Video summary[edit | edit source]

  • 16:30 Tibial Proximal Mechanical Axis
  • 17:30 Tibial Distal Mechanical Axis
  • 18:40 Magnitude of Angulation Correction
  • 23:44 Tibial Proximal Anatomical Axis
  • 24:00 Tibial Distal Anatomical Axis

Limb axis planning in the frontal plane[edit | edit source]

Fig. 8a. Mechanical and anatomical axis planning in the frontal plane, in femur or tibia bones.
When there is Malalignment or Malorientation in femur or tibia bones, the bone with deformity can be divided into proximal and distal bone segments. The proximal and distal bone segments have their own proximal mechanical axis (PMA) or proximal anatomical axis (PAA) line and distal mechanical axis (DMA) or distal anatomical axis (DAA) line respectively (Fig. 8a)

Bone angulation deformity in the frontal plane[edit | edit source]

Fig. 8j. Bone angulation deformities in the frontal plane: uniapical and multiapical deformities.

The bone angulation deformity can be seen in either the frontal plane (visible on AP x-rays) or sagittal plane (visible on LAT x-rays) or both.

These angulation deformities can be at one level or location in the bone referred to as 'Uniapical deformity' or it can be at multiple locations also referred to as 'Multiapical deformity' (Fig. 8j)