ArticleGlobal spine journal2023
The Use of Intraoperative CT Hounsfield Unit Values for the Assessment of Bone Quality in Patients Undergoing Lumbar Interbody Fusion.
Article in Global spine journal, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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5 citing papers in PubMed.
- Preventing adjacent segment disease after lumbar fusion: a new perspective emphasizing individualized factors.Quantitative imaging in medicine and surgery · 2026Article
- Advances in Preoperative and Intraoperative Technologies for Safe Resection of Gliomas in Cognitive Regions.Cancers · 2025Review
- Preoperative MRI-based endplate quality: a novel tool for predicting cage subsidence after anterior cervical spine surgery.Journal of orthopaedic surgery and research · 2024Article
- Decompression with or without fusion in degenerative adjacent segment stenosis after lumbar fusions.Neurosurgical review · 2022Article
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4 authors.
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Abstract
STUDY
designRetrospective Cohort Study.
objectiveTo evaluate the accuracy of intraoperatively measured computed tomography (CT) Hounsfield unit (HU) values by comparison with preoperative CT HU values and to compare the radiation exposure between preoperative and intraoperative CT scans.
methodsHU values of lumbar vertebrae were measured and compared between preoperative and intraoperative CT scans in patients undergoing lumbar interbody fusion. In patient group one, Canon CT scanners were used preoperatively and the AIRO CT scanner was used intraoperatively. In patient group two, Canon CT scanners were used preoperatively and the O-arm Cone Beam CT (CBCT) scanner was used intraoperatively. In a subgroup analysis of patient group one, radiation by means of CT Dose Index (CTDI) was compared between Canon and AIRO CT scanners.
resultsIn the first patient group, a total of 250 vertebrae were analysed in 74 patients showing a strong Pearson correlation of >.94 between pre- and intraoperative HU values. Bland-Altman analysis indicated consistency and equivalence with a bias of 3.9 and 95% limits of agreement from -27.17 to 34.97 when comparing all pre- and intraoperative HU values of L1-5. In the second patient group, a total of 27 vertebrae were analysed in 10 patients showing weak Pearson correlation and Bland-Altman analysis indicated no equivalence. CTDI did not differ between Canon and AIRO CT scanners.
conclusionCorrect and reliable CT HU measurement as mandatory key factor for the intraoperative assessment of bone quality and robotic-assisted surgery is feasible with intraoperative AIRO CT imaging without increase of radiation exposure.
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