A nomogram for predicting screw loosening after single-level posterior lumbar interbody fusion utilizing cortical bone trajectory screw: A minimum 2-year follow-up study
| Autor: | Yiqi Zhang, Yue Li, Yong Hai, Li Guan, Xinuo Zhang, Aixing Pan, Hongyi Lu, Bingchao Wu, Yuzeng Liu |
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| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Frontiers in Surgery, Vol 9 (2022) |
| Druh dokumentu: | article |
| ISSN: | 2296-875X 46658114 |
| DOI: | 10.3389/fsurg.2022.950129 |
| Popis: | PurposeThis study aims to investigate the risk factors for screw loosening after single-level posterior lumbar interbody fusion (PLIF) utilizing cortical bone trajectory (CBT) screw and establish a nomogram for predicting screw loosening.MethodsA total of 79 patients (316 screws) who underwent single-level PLIF with CBT screw were included in the study. Preoperative, postoperative, and final follow-up demographic data, surgical data, and radiographic parameters were documented and analyzed to identify risk factors, and a predictive nomogram was established for screw loosening. The nomogram was assessed by concordance index (C-index), calibration plot, decision curve analysis (DCA), and internal validation.ResultsThe incidence of screw loosening was 26.6% in 79 patients and 11.4% in 316 screws. Multifactorial regression analysis confirmed that fixed to S1 (FS1, OR = 3.82, 95% CI 1.12–12.71, P = 0.029), the coronal angle of the screw (CA, OR = 1.07, 95% CI 1.01–1.14, P = 0.039), and cortical bone contacted layers (CBCLs, OR = 0.17, 95% CI 0.10–0.29, P |
| Databáze: | Directory of Open Access Journals |
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