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Surgical procedures step-by-step. (a) Exposure of spine; (b) the templates fit the spine perfectly; (c) insert Kirschner wires; (d) remove template; (e) drill the screw trajectory; (f) insert screws; (g) Kirschner wires help to fix the osteotomy guidance template; (h) performance of a VCR osteotomy using ultrasonic osteotome; (i) the osteotomy rails on the lamina; (j) complete correction of spine deformity.
