Comparison of the Predictive Roles of CT- and MRI-Based Pedicle Regional Osteoporosis Status Measurements for Pedicle Screw Loosening After Posterior Lumbar Interbody Fusion.

ABSTRACT: Study DesignRetrospective Study.ObjectivesTo compare the efficacy of pedicle Hounsfield unit (HU) values and pedicle bone quality (PBQ) scores in predicting pedicle screw loosening (PSL) after posterior lumbar interbody fusion (PLIF) in elderly patients and to identify the most discriminative bone mineral density (BMD) assessment indicator.MethodsThis retrospective analysis included 275 consecutive patients who underwent PLIF. L₁ and pedicle HU values were obtained from CT scans, whereas vertebral bone quality (VBQ) and PBQ scores were obtained from MRI. Logistic regression analysis determined factors associated with PSL. Receiver-operating characteristic curve analysis was conducted to assess the predictive value of pedicle HU and PBQ score for PSL and to additionally compare t

SUBMITTER: Du P 

PROVIDER: S-EPMC12397096 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature