Prediction of Spinal Canal Expansion Following Cervical Laminoplasty: A Computer-Simulated Comparison Between Single and Double-Door Techniques

Abstract

Our investigation provides insight into canal expansion after laminoplasty. The increased amount of canal following laminoplasty can be predicted by the regression equations. This may allow preoperative determination of the optimal size of the opening needed to establish adequate canal space for the spinal cord. Both single and double-door techniques of laminoplasty provide sufficient room for posterior migration of the spinal cord, although gaining different canal expansion.