PURPOSE: To identify changes in cervical alignment parameters following surgical correction of thoracolumbar deformity and then assess the preoperative parameters which induce changes in cervical alignment following corrective thoracolumbar deformity surgery. METHODS: A retrospective study of 49 patients treated for thoracolumbar deformity with preoperative planning of an acceptably aligned coronal and sagittal plane in each case. We compared cervical spine parameters in two distinct low [preoperative C7 sagittal vertical axis (SVA) ≤ 6 cm] and high (preoperative C7 SVA ≥ 9 cm) C7 SVA groups. Multilinear regression analysis was performed and revealed the relationship between postoperative cervical lordosis and preoperative spinopelvic parameters and surgical plans. RESULTS: In the lower C7 SVA group, cervical lordosis was significantly increased after thoracic/lumbar deformity correction (p < 0.01). In contrast, the high C7 SVA group showed decreased cervical lordosis postoperatively (p < 0.01). Multilinear regression analysis demonstrated the preoperative parameters (preoperative C2-7 angle, T1 slope, surgical plan for PT and C7 SVA), which determine the postoperative cervical lordosis. CONCLUSION: In spinal deformity procedures, preoperative spinal alignment parameters, and surgical plans could affect postoperative cervical spine alignment.
PURPOSE: To identify changes in cervical alignment parameters following surgical correction of thoracolumbar deformity and then assess the preoperative parameters which induce changes in cervical alignment following corrective thoracolumbar deformity surgery. METHODS: A retrospective study of 49 patients treated for thoracolumbar deformity with preoperative planning of an acceptably aligned coronal and sagittal plane in each case. We compared cervical spine parameters in two distinct low [preoperative C7 sagittal vertical axis (SVA) ≤ 6 cm] and high (preoperative C7 SVA ≥ 9 cm) C7 SVA groups. Multilinear regression analysis was performed and revealed the relationship between postoperative cervical lordosis and preoperative spinopelvic parameters and surgical plans. RESULTS: In the lower C7 SVA group, cervical lordosis was significantly increased after thoracic/lumbar deformity correction (p < 0.01). In contrast, the high C7 SVA group showed decreased cervical lordosis postoperatively (p < 0.01). Multilinear regression analysis demonstrated the preoperative parameters (preoperative C2-7 angle, T1 slope, surgical plan for PT and C7 SVA), which determine the postoperative cervical lordosis. CONCLUSION: In spinal deformity procedures, preoperative spinal alignment parameters, and surgical plans could affect postoperative cervical spine alignment.
Authors: Virginie Lafage; Christopher Ames; Frank Schwab; Eric Klineberg; Behrooz Akbarnia; Justin Smith; Oheneba Boachie-Adjei; Douglas Burton; Robert Hart; Richard Hostin; Christopher Shaffrey; Kirkham Wood; Shay Bess Journal: Spine (Phila Pa 1976) Date: 2012-02-01 Impact factor: 3.468
Authors: Steven D Glassman; Keith Bridwell; John R Dimar; William Horton; Sigurd Berven; Frank Schwab Journal: Spine (Phila Pa 1976) Date: 2005-09-15 Impact factor: 3.468
Authors: Themistocles Protopsaltis; Nicolas Bronsard; Alex Soroceanu; Jensen K Henry; Renaud Lafage; Justin Smith; Eric Klineberg; Gregory Mundis; Han Jo Kim; Richard Hostin; Robert Hart; Christopher Shaffrey; Shay Bess; Christopher Ames Journal: Eur Spine J Date: 2016-07-20 Impact factor: 3.134
Authors: Subaraman Ramchandran; Themistocles S Protopsaltis; Daniel Sciubba; Justin K Scheer; Cyrus M Jalai; Alan Daniels; Peter G Passias; Virginie Lafage; Han Jo Kim; Gregory Mundis; Eric Klineberg; Robert A Hart; Justin S Smith; Christopher Shaffrey; Christopher P Ames Journal: Eur Spine J Date: 2017-11-28 Impact factor: 3.134
Authors: Donald J Blaskiewicz; Jeffrey E Harris; Patrick P Han; Alexander W Turner; Gregory M Mundis Journal: Eur Spine J Date: 2017-05-13 Impact factor: 3.134
Authors: Cyrus M Jalai; Peter G Passias; Virginie Lafage; Justin S Smith; Renaud Lafage; Gregory W Poorman; Bassel Diebo; Barthélemy Liabaud; Brian J Neuman; Justin K Scheer; Christopher I Shaffrey; Shay Bess; Frank Schwab; Christopher P Ames Journal: Eur Spine J Date: 2016-04-13 Impact factor: 3.134