ArticleNeurospine2025
Proximal Thoracic Alignment Change Influences Cervical Sagittal Alignment After Correction Surgery in Patients With Lenke Type 2 Adolescent Idiopathic Scoliosis.
Article in Neurospine, 2025. 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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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
5 citing papers in PubMed.
- Preoperative mid-cervical disc degeneration is associated with residual cervical kyphosis after surgery for adolescent idiopathic scoliosis.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
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- In Correction Surgery for Adolescent Idiopathic Scoliosis with Lenke Type 1 and 2 curves, Obtaining Kyphosis in the Upper Thoracic Spine Is Important for Preventing Postoperative Cervical Kyphosis.Spine surgery and related research · 2026Article
- From the Editor-in-Chief: Featured Articles in the June 2025 Issue.Neurospine · 2025Article
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11 authors.
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No grant is acknowledged in the PubMed record.
Abstract
objectiveTo examine the factors influencing cervical sagittal alignment (CSA) after posterior correction and fusion surgery (PSF) for patients with Lenke type 2 adolescent idiopathic scoliosis (AIS).
methodsA total of 102 female patients with Lenke 2 AIS and a minimum 2-year follow-up were included. The upper instrumented vertebra was T2 in all patients. Sagittal and coronal parameters were measured before and 2 years after surgery. Patients were categorized into cervical malalignment (CM) and noncervical malalignment (NCM) groups following Passias' criteria. Radiographic factors influencing CSA were analyzed.
resultsPreoperatively, 57 patients (55.9%) were assigned to the CM group and 45 patients (44.1%) to the NCM groups. The cervical lordosis (CL) in CM group was more kyphotic (19.3° vs. 3.3°), smaller proximal thoracic kyphosis (PTK; 9.7° vs. 15.4°), and smaller T1 slope (7.1° vs. 14.0°) than those in the NCM group. Main thoracic kyphosis (MTK) did not show significantly difference between the 2 groups (11.3° vs. 14.4°). Two years after surgery, the CM group demonstrated significant improvements in CSA. PTK increased from 9.7° to 13.5°, T1 slope increased from 7.1° to 10.5°, and cervical kyphosis improved from -19.3° to -8.8°, while MTK remained unchanged (11.3° vs. 11.6°).
conclusionPSF significantly improved CSA in patients with preoperative CM. Increased PTK, correlated with improved CL, suggests that PSF-induced PTK enhancement, rather than MTK, drives T1 slope and subsequent CSA improvement.
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