Zach Pennington, Anthony L Mikula, Nikita Lakomkin, Michael Martini, Zachariah W Pinter, Mahnoor Shafi, Abdelrahman Hamouda, Mohamad Bydon, Michelle J Clarke, Brett A Freedman, William E Krauss, Ahmad N Nassr, Arjun S Sebastian, Jeremy L Fogelson, Benjamin D Elder
OBJECTIVE: To compare the prognostic power of Hounsfield units and VBQ score for predicting proximal junctional kyphosis (PJK) following long-segment thoracolumbar fusion to the upper thoracic spine (T1-T6) METHODS: Vertebral bone quality around the upper instrumented vertebrae (UIV) was measured using HU on preoperative CT and VBQ on preoperative MRI. Spinopelvic parameters were also categorized according to the SRS-Schwab classification. Univariable analysis to identify predictors of the occurrence of PJK and survival analyses with Kaplan-Meier method and Cox regression were performed to identify predictors of time to PJK (defined as ≥10° change in Cobb angle of UIV+2 and UIV)...
April 6, 2024: World Neurosurgery