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Fig. 2 | Journal of Orthopaedic Surgery and Research

Fig. 2

From: Clinical efficacy and safety of modified tracer fixation technique in robot-assisted percutaneous pedicle screw fixation for thoracolumbar fractures

Fig. 2

A 46-year-old male patients, with L2 fracture, underwent robot-assisted PPS fixation by spinous process-fixed tracer. a, b, c: perioperative X-ray, CT and MRI show L2 vertebral fracture. d: spinous process clamp is used to fix the tracer to the spinous process. e, f, g: nail placement path planning; guide pin is inserted into the vertebral body, fixing screws and universal screws are then placed. h: Postoperative 7-day X-ray shows good positions of pedicle screw and rod, and acceptable vertebral height restoration. i: postoperative 3-month X-ray indicates good positions of pedicle screw and rod, no loosening or significant loss of height, and basically completed fracture healing. j: postoperative 6-month X-ray reveals good positions of pedicle screw and rod, no loosening or significant loss of height, and good fracture healing

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