Fig. 4From: The effectiveness of preoperative assessment using a patient-specific three-dimensional pseudoarticulation model for minimally invasive posterior resection in a patient with Bertolotti’s syndrome: a case reporta Three-dimensional plaster model of the left lumbosacral transitional vertebrae. b Painted area shows the range to be resected. c, d Rehearsal of resection using a high-speed drillBack to article page