Static and dynamic sagittal lumbar apex: a new concept for the assessment of lumbar lordosis distribution in spinal deformity

Iwai, Chizuo; Pizones, Javier; Boissière, Louis; Jakinapally, Sreenath; Yılgör, Çağlar; Larrieu, Daniel; Pellisé, Ferran; Vital, Jean-Marc; Bourghli, Anouar; Obeid, Ibrahim

doi:10.1007/s00586-021-06767-7

Cited by 2 publications

(2 citation statements)

References 25 publications

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“…The Global Alignment and Proportion (GAP) Score was also calculated [20,21], as a predictor of mechanical complications in ASD patients undergoing surgery, based on a pelvic incidence proportional method of analyzing the sagittal plane. For the lumbar lordosis distribution, the lumbar apex was defined as the most distant point from the line joining the inflection point and the midpoint of the sacral plate [22,23].…”

Section: Data Acquisitionmentioning

confidence: 99%

Alterations of gait kinematics depend on the deformity type in the setting of adult spinal deformity

et al. 2022

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Section: Data Acquisitionmentioning

confidence: 99%

Alterations of gait kinematics depend on the deformity type in the setting of adult spinal deformity

et al. 2022

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“…The sagittal malalignment is compensated for by the parts of axial skeleton in which thoracic kyphosis, pelvic tilt, and knee flexion increase, according to the grade of malalignment required to maintain a standing posture with a horizontal gaze [ 7 , 8 ]. As a result, an ideal correction in LL must be performed to restore full-body balance for those DLS patients [ 9 ]. Furthermore, previous studies have illustrated that the surgical procedure of thoracolumbar fusion with instrumentations can restore the spinopelvic alignments effectively in DLS [ 4 , 10 , 11 ].…”

Section: Introductionmentioning

confidence: 99%

How does the correction in lumbar lordosis affect the spinopelvic realignments in degenerative lumbar scoliosis underwent scoliosis surgery?

Zhang,

Song,

Jia

et al. 2023

Eur J Med Res

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Background To evaluate the effects of correction in lumbar lordosis (LL) that have on full-body realignments in patients with degenerative lumbar scoliosis (DLS) who had undergone long sacroiliac fusion surgery. Methods A multi-center retrospective study including 88 DLS patients underwent the surgical procedure of long sacroiliac fusion with instrumentations was performed. Comparisons of radiographic and quality-of-life (QoL) data among that at the pre-operation, the 3rd month and the final follow-up were performed. The correlations between the LL correction and the changes in other spinopelvic parameters were explored using Pearson-correlation linear analysis and linear regression analysis. The correlation coefficient (r) and the adjusted r2 were calculated subsequently. Results All radiographic and QoL data improved significantly (P < 0.001) after the surgical treatments. The LL correction correlated (P < 0.001) with the changes in the sacral slope (SS, r = 0.698), pelvic tilt (PT, r = -0.635), sagittal vertical axis (SVA, r = −0.591), T1 pelvic angle (TPA, r = −0.782), and the mismatch of pelvic incidence minus lumbar lordosis (PI–LL, r = −0.936), respectively. Moreover, LL increased by 1° for each of the following spinopelvic parameter changes (P < 0.001): 2.62° for SS (r2 = 0.488), −4.01° for PT (r2 = 0.404), −4.86° for TPA (r2 = 0.612), −2.08° for the PI–LL (r2 = 0.876) and -15.74 mm for SVA (r2 = 0.349). Changes in the thoracic kyphosis (r = 0.259) and pelvic femur angle (r = 0.12) were independent of the LL correction, respectively. Conclusions LL correction correlated significantly to the changes in spinopelvic parameters; however, those independent variables including the thoracic spine and hip variables probably be remodeled themselves to maintain the full-body balance in DLS patients underwent the correction surgery.

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Static and dynamic sagittal lumbar apex: a new concept for the assessment of lumbar lordosis distribution in spinal deformity

Cited by 2 publications

References 25 publications

Alterations of gait kinematics depend on the deformity type in the setting of adult spinal deformity

Alterations of gait kinematics depend on the deformity type in the setting of adult spinal deformity

How does the correction in lumbar lordosis affect the spinopelvic realignments in degenerative lumbar scoliosis underwent scoliosis surgery?

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