INTRODUCTION: The variations of the cervical lordosis after correction of sagittal imbalance have been poorly studied. The aim of our study is to verify whether the cervical lordosis changes after surgery for sagittal imbalance. MATERIALS AND METHODS: Thirty-nine patients were included in the study. Cervical, thoracic and lumbar spine, pelvic and lower-limb sagittal parameters were recorded. The cranial alignment was measured by the newly described Cranial Slope. RESULTS: The global cervical kyphosis (preop -43°, postop -31.5°) and the upper (preop -24.1°, postop -20.2°) and lower cervical kyphosis (preop -18.1°, postop -9.2°) were significantly reduced after surgical realignment of the trunk. A positive linear correlation was observed between the changes in T1 slope and the lower cervical lordosis, and between T1 slope and the global cervical alignment. CONCLUSIONS: The cervical lordosis is reduced by surgical correction of malalignment of the trunk, suggesting an adaptive role to maintain the head's neutral position.
INTRODUCTION: The variations of the cervical lordosis after correction of sagittal imbalance have been poorly studied. The aim of our study is to verify whether the cervical lordosis changes after surgery for sagittal imbalance. MATERIALS AND METHODS: Thirty-nine patients were included in the study. Cervical, thoracic and lumbar spine, pelvic and lower-limb sagittal parameters were recorded. The cranial alignment was measured by the newly described Cranial Slope. RESULTS: The global cervical kyphosis (preop -43°, postop -31.5°) and the upper (preop -24.1°, postop -20.2°) and lower cervical kyphosis (preop -18.1°, postop -9.2°) were significantly reduced after surgical realignment of the trunk. A positive linear correlation was observed between the changes in T1 slope and the lower cervical lordosis, and between T1 slope and the global cervical alignment. CONCLUSIONS: The cervical lordosis is reduced by surgical correction of malalignment of the trunk, suggesting an adaptive role to maintain the head's neutral position.
Authors: Steven D Glassman; Sigurd Berven; Keith Bridwell; William Horton; John R Dimar Journal: Spine (Phila Pa 1976) Date: 2005-03-15 Impact factor: 3.468
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: 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