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Fig. 5 | Journal of Orthopaedic Surgery and Research

Fig. 5

From: Deformity angular distance ratio independently predicts intraoperative neuromonitoring alerts in spinal deformity correction

Fig. 5

A 26-year-old male with congenital kyphosis underwent vertebral column resection (VCR) at T11–T12 and posterior spinal instrumentation from T6 to L3. Intraoperative neuromonitoring (IONM) remained stable, with no new postoperative neurological deficits. (a) Preoperative anterior-posterior and (b) lateral whole-spine radiographs demonstrate a T10–L1 kyphotic curve measuring 107.2°, with preserved coronal alignment. The sagittal deformity angular ratio (S-DAR) was calculated as 26.8 (107.2/4), and the sagittal deformity angular distance ratio (S-DADR) was calculated as 19.5 (107.2/5.5). Postoperative 7-month (c) anterior-posterior and (d) lateral radiographs show successful correction of the kyphotic curve to 30.2°

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Journal of Orthopaedic Surgery and Research

ISSN: 1749-799X