Optimizing preoperative bone health assessment for adult spinal deformity: a prospective correlation analysis of intraoperative pedicle screw insertion torque and imaging modalities in Japan

Autor: Keishi Maruo, Fumihiro Arizumi, Tomoyuki Kusukawa, Masakazu Toi, Masaru Hatano, Tetsuto Yamaura, Kazuya Kishima, Toshiya Tachibana
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Asian Spine Journal, Vol 18, Iss 4, Pp 532-540 (2024)
Druh dokumentu: article
ISSN: 1976-1902
1976-7846
DOI: 10.31616/asj.2023.0443
Popis: Study Design Prospective cohort study. Purpose This study aimed to identify the optimal preoperative bone health assessment for adult spinal deformity (ASD) surgery through correlation analysis between intraoperative pedicle screw (PS) insertion torque and various bone quality measures, including bone mineral density (BMD) assessed by dual-energy X-ray absorptiometry (DEXA), Hounsfield unit (HU) by computed tomography (CT), and vertebral bone quality (VBQ) score by magnetic resonance imaging. Overview of Literature Existing data on optimal assessment tools for ASD surgery are limited. Methods The study included patients with ASD aged >60 years who underwent spinal corrective fusion surgery from the lower thoracic spine to the pelvis. The intraoperative PS insertion torque was measured using a torque meter. Pearson correlation coefficients were calculated between the PS insertion torque and the BMD, HU, and VBQ score. Preoperative bone quality was compared between the proximal junctional failure (PJF) and non-PJF groups. Results Thirty-one patients with 177 PS at T10, T11, and T12 were analyzed. The PS insertion torque showed a moderate positive correlation with lumbar spine BMD (r=0.59–0.69, p0.05). Notably, a strong correlation was found between the PS insertion torque and the HU value for screws of the same size (r=0.71 and 0.74, p
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