Retrospective study shows lower Hounsfield unit increases screw loosening risk in spinal fusion surgery, indicating a predictive tool for preoperative planning.
Lower HU values measured along the PS trajectory using single-slice CT images were significantly associated with a higher risk of screw loosening. This straightforward method may serve as a valuable tool for identifying high-risk patients during the preoperative planning phase of spinal fusion surgery.
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Yamamoto et al. (2025) studied this question.
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