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(a) The tip of the C3 spinous process is split using a high-speed drill. The attached muscles are not dissected. (b) A C2/3 fenestration is performed using a high-speed drill. (c) A gutter is created at the hinge side of C3 (↓) using a high-speed drill. (d) A gutter is created at the open side of C3 using a high-speed drill. The base of the C3 spinous process (*) is observed. (e,f) Mini-plates are placed at each lamina.
