In vitro radiographic characteristics and biomechanical properties of the canine lumbar vertebral motion unit after lateral corpectomy, mini-hemilaminectomy and hemilaminectomy

Summary Objective: The purpose of this study was to assess the effect of three surgical procedures (left lateral corpectomy [LC], LC plus mini-hemilaminectomy [LC-MH], and LC plus hemilaminectomy [LC-H]) on the biomechanics and intervertebral collapse of a lumbar vertebral motor unit (VMU). Methods: Six canine cadaveric first and second lumbar vertebrae (L1-L2) VMU were retrieved. Range-of-motion (ROM) was measured while a custom-built...