Wikis > Biomechanics > Clinical Biomechanics > Biomechanical Assessment > Lower Limb Alignment > Calcaneal Bisection
Calcaneal Bisection:
Reference line for a number of measurements/observations. The traditional biomechanical assessment of lower limb alignment relies heavily on the calcaneal bisection, yet it is widely documented as being unreliable.
Technique:
• leg rotated to place posterior aspect of calcaneus in frontal plane
• posterior aspect of calcaneus is bisected by eyeballing the medial and lateral borders of the calcaneus (may be helpful to mark with the borders with a pen first)
During weightbearing, due to shifting of the plantar fat pad and skin, the calcaneal bisection may need to be redrawn in a weightbearing position for weightbearing measurements.
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