 It was necessary to remove portion of the posterior spinous process at T11 for a full visualization of the involved laminar fractures at T12.,At this point, a laminectomy was performed using 45-degree Kerrison rongeur, both 2 mm and 4 mm, and Leksell rongeur. 
It was necessary to remove portion of the posterior spinous process at T11 for a full visualization of the involved laminar fractures at T12.,At this point , a laminectomy was performed using 45 - degree Kerrison rongeur , both 2 mm and 4 mm , and Leksell rongeur .