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Fig. 6 | Journal of Orthopaedic Surgery and Research

Fig. 6

From: Pedicle screw loosening: the value of radiological imagings and the identification of risk factors assessed by extraction torque during screw removal surgery

Fig. 6

A typical case showing CT scan might be insensitive to detect screw loosening. a Anteroposterior X-ray showed radiolucent zone and double halo around the screw (black arrow) which indicate screw loosening. b Lateral X-ray showed that the same screw was pulled out (white arrow). c CT scan showed no gap around the same screw

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Journal of Orthopaedic Surgery and Research

ISSN: 1749-799X