METHODS AND APPARATUS FOR SPINAL RECONSTRUCTIVE SURGERY AND MEASURING SPINAL LENGTH AND INTERVERTEBRAL SPACING, TENSION AND ROTATION

摘要

Methods and apparatus are disclosed for performing spinal reconstructive surgery, including measuring spinal length in the Y-axis at the middle column, measuring intervertebral spacing in the Y-axis at the middle column, measuring intervertebral tension applied to the posterior longitudinal ligament, establishing the height of intervertebral spacers along the Y-axis at the middle column based on one or more of such measurements, measuring intervertebral rotation around the Y-axis, and measuring flexion-extension or anterior-posterior rotation around the X-axis.