ArticleBioMed research international2023
Computed Tomography-Based Prediction of Lumbar Pedicle Screw Loosening.
Article in BioMed research international, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 3 of them syntheses that pooled it.
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Who cites it
10 citing papers in PubMed, 3 syntheses or guidelines pooled it, 18 citations in OpenAlex.
- Generation and validation of a Hounsfield unit (HU) threshold for predicting mechanical and junctional complications following thoracolumbar or lumbar fusion: a systematic review and meta-analysis.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2026Pooled it
- Accuracy of CT hounsfield units for predicting cage subsidence and pedicle screw loosening after lumbar interbody fusion: a systematic review and meta-analysis.Neurosurgical review · 2025Pooled it
- Evaluating the prognostic role of computed tomography Hounsfield units in anticipating spinal outcomes post-instrumentation: a systematic review and meta-analysis.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2025Pooled it
- Multimodal model predicts screw loosening at user-specified postoperative time points after single-level lumbar interbody fusion.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2026Article
- Risk factors for screw loosening following lumbar interbody fusion surgery in degenerative lumbar disease: a systematic review and meta-analysis.Asian spine journal · 2025Article
- Risk factors for pedicle screw loosening: a comprehensive review.Journal of orthopaedic surgery and research · 2025Review
- Can Preoperative Hounsfield Unit Measurement Help Predict Mechanical Failure in Metastatic Spinal Tumor Surgery?Journal of clinical medicine · 2024Article
- Article
- The utility of vertebral Hounsfield units as a prognostic indicator of adverse events following treatment of spinal epidural abscess.North American Spine Society journal · 2024Article
- Supplementary posterior fusion in patients operated on employing TLIF may decrease the instrumentation failure rate.Frontiers in surgery · 2023Article
Corrections and comments
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Authors and funding
7 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Objective: Pedicle screw loosening is one of the main complications after pedicle screw fixation. However, there are few reliable measures for prediction of screw loosening. The current study was carried out to find an effective method to use preoperative CT scanning as a predictor of screw loosening in the elderly patients and provide guidance for preoperative surgical planning. Methods: Patients who were treated with lumbar pedicle screw fixation procedure in our department for degenerative lumbar disorders between January 2015 and January 2021 were retrospectively included in the current study. CT scan attenuation of each vertebra was measured with Hounsfield units (HU). Screw loosening was determined in postoperatively X-ray tests. One-way analysis of variance (ANOVA) and receiver operating characteristic (ROC) curve analysis were carried out with IBMSPSS 24.00 software. Results: Screw loosening was observed in 44 of 215 patients (124 male, 91 female, average age 58.4 ± 7.6 years) during a mean follow-up time of 19.0 ± 11.2 months (range 12-32 months). No significant differences were found among the patients concerning patient gender, BMI, habit of smoking, and whether or not the patient had diabetes or suffered from spondylolisthesis ( Conclusions: A prospective CT scan HU value-based prediction can be used to decide whether or not to use screw augmentation methods. A cut-off L1-L5 average HU value of 124 HU can be used as an independent risk factor for screw loosening in instrumented lumbar vertebra. More predictive indexes should be involved to achieve higher sensitivity and specificity in future clinical practice.
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