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Fig. 5 | BMC Surgery

Fig. 5

From: Size selection and placement of pedicle screws using robot-assisted versus fluoroscopy-guided techniques for thoracolumbar fractures: possible implications for the screw loosening rate

Fig. 5

A Postoperative 1-year plain X-ray demonstrated left screw loosening at T12, L1, and L2 in a 39-year-old male who underwent short-segment fixation from T12 to L2 (black arrow: double halo sign); B postoperative 1-year CT demonstrated left screw loosening at L1 in a 47-year-old male who underwent short-segment fixation from T11 to L12 (white arrow: lucent zone)

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