Anaesthesia Structures pierced in lumbar spinal puncture are all of the following except: March 2011 A Ligamentum flavum B Duramater C Supraspinous ligament D Posterior Longitudinal ligament 💡 Explanation Structures pierced in lumbar spinal puncture are all of the following except: March 2011 ✓ Correct Answer: D. Posterior Longitudinal ligament