Laminoplasty Techniques for the Treatment of Multilevel Cervical Stenosis
Figure 4
Sawbones model of an open-door laminoplasty. A trough has been drilled in the lamina at the lamina-lateral mass junction with a burr until there is a thin remnant of lamina left. This cut has been completed with a Kerrison punch (a). After the complete trough on the open side, a second trough is drilled on the hinge side. Expand the canal and the opening on the open side with a curette on the open side between the laminae and lateral mass while rotating the lamina towards the hinged side with a Kocher, as shown in (b).
