Distractors
Extension is used in correcting posture and shear is used in correcting scoliosis
Extension is aligning in the frontal plane and shear is aligning in the sagittal plane
Extension is the balance to flexion and shear is the balance to compression
Key
Extension is a true elongation of the spine and shear is a false elongation comprised of vertebral subluxation
Question
What is the difference between vertebral extension and vertebral shear?