ArticleJournal of orthopaedic surgery and research2025
A novel technique for intraoperative coronal alignment assessment in posterior spinal deformity surgery.
Article in Journal of orthopaedic surgery and research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeThis study aimed to introduce a novel method for assessing intraoperative coronal alignment in posterior spinal deformity surgery and to investigate its feasibility and efficacy in preventing postoperative coronal imbalance (CIB).
methodsAll enrolled patients underwent posterior spinal deformity surgery, with dot-line method employed to evaluate coronal alignment intraoperatively. Preoperative and postoperative radiographic and clinical parameters were analyzed. Additionally, patients were divided into type A, B, and C preoperatively, and subgroup analysis was conducted to further assess the effectiveness of this new method.
resultsOf 46 patients with preoperative CIB, 16 were classified as type B and 30 as type C. The prevalence of CIB was 11.70% at the final follow-up. Preoperative main Cobb angle averaged 55.39 ± 28.22° and improved to 15.19 ± 10.65° at the final follow-up (P < 0.05). Preoperative CBD corrected from 23.06 ± 16.77 mm preoperatively to 18.77 ± 14.48 mm at the final follow-up (P < 0.05). SVA was 34.59 ± 22.66 mm before surgery and 20.12 ± 12.21 mm at the final follow-up (P < 0.05). VAS score and SRS-22 score demonstrated significant improvements had at the final follow up (P < 0.05). Subgroup analysis showed postoperative CIB in 2 patients with type A, 4 patients with type B, and 5 patients with type C.
conclusionDot-line method is a viable technique for intraoperative assessment of coronal alignment in posterior spinal deformity surgery, effectively reducing and preventing postoperative CIB.
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