+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Spinopelvic alignment and sagittal balance of asymptomatic adults with 6 lumbar vertebrae

Spinopelvic alignment and sagittal balance of asymptomatic adults with 6 lumbar vertebrae

European Spine Journal 25(11): 3583-3588

The purpose of this study was to evaluate total spinal alignment in asymptomatic individuals with 6 lumbar vertebrae (LVs). The present study comprised 167 Japanese adult volunteers with no spinal symptoms. In all individuals, standing radiographs of the entire spine were taken to measure the pelvic incidence (PI), sacral slope (SS), pelvic tilt (PT), lumbar lordosis (LL), C7 sagittal vertical axis (C7SVA), T1 slope, thoracic kyphosis (TK), C2-C7 sagittal vertical axis (C2-C7 SVA), and C2-C7 lordosis (C2-C7L). We used these parameters to compare individuals with 5LVs to those with 6LVs. We performed additional investigations regarding the relationship between L6 morphological characteristics and parameters. Out of 167 individuals, 6LVs were present in 29 (17.4 %). PI was significantly greater in individuals with 6LVs (64.8° ± 9.54°) than in those with 5LVs (51.3° ± 10.1°, P < 0.0001). Individuals with 6LVs also had significantly larger SS, PT, and C7SVA values (SS: P = 0.0125, PT: P < 0.0001, C7SVA: P = 0.0172). LL tended to be nonsignificantly greater in individuals with 6LVs (P = 0.1588). All of these changes were more noticeable in individuals in whom the L6 vertebra was classified as type II and III according to the Castellvi classification. Meanwhile, the presence of 6LVs has little influence on the alignment of the superior lumber vertebrae. Asymptomatic individuals with 6LVs presented with different spinopelvic alignment compared to those with 5LVs. We need to establish a treatment strategy for symptomatic 6LV cases.

Please choose payment method:

(PDF emailed within 0-6 h: $19.90)

Accession: 058890264

Download citation: RISBibTeXText

PMID: 26482498

DOI: 10.1007/s00586-015-4284-4

Related references

Factors determining cervical spine sagittal balance in asymptomatic adults: correlation with spinopelvic balance and thoracic inlet alignment. Spine Journal 15(4): 705-712, 2015

Spinopelvic Parameters and Sagittal Alignment of Symptomatic Degenerative Adult Spinal Disorder Patients With 6 Lumbar Vertebrae. Clinical Spine Surgery 32(1): E43, 2019

Characteristics of sagittal spinopelvic alignment in asymptomatic Han Chinese adults. Experimental and Therapeutic Medicine 16(5): 4107-4113, 2018

An analysis of spinopelvic sagittal alignment after lumbar lordosis reconstruction for degenerative spinal diseases: how much balance can be obtained?. Spine 39(26 Spec No.): B52, 2014

Correlation between lumbar intervertebral disc height and lumbar spine sagittal alignment among asymptomatic Asian young adults. Journal of Orthopaedic Surgery and Research 13(1): 34, 2018

Sagittal balance of the cervical spine: an analysis of occipitocervical and spinopelvic interdependence, with C-7 slope as a marker of cervical and spinopelvic alignment. Journal of Neurosurgery. Spine 23(1): 16-23, 2015

A Change in Lumbar Sagittal Alignment After Single-Level Anterior Lumbar Interbody Fusion for Lumbar Degenerative Spondylolisthesis with Normal Sagittal Balance. Clinical Spine Surgery (): -, 2014

A Change in Lumbar Sagittal Alignment After Single-level Anterior Lumbar Interbody Fusion for Lumbar Degenerative Spondylolisthesis With Normal Sagittal Balance. Clinical Spine Surgery 30(7): 291-296, 2017

Association Between Lumbar Spine Sagittal Alignment and L4-L5 Disc Degeneration Among Asymptomatic Young Adults. Spine 41(18): E1081-7, 2016

Characteristics of Spinopelvic Sagittal Alignment in Lumbar Degenerative Disease. World Neurosurgery 126: E417, 2019

The influence of thoracic inlet alignment on the craniocervical sagittal balance in asymptomatic adults. Journal of Spinal Disorders and Techniques 25(2): E41, 2012

Are There Age- and Sex-related Differences in Spinal Sagittal Alignment and Balance Among Taiwanese Asymptomatic Adults?. Clinical Orthopaedics and Related Research 476(5): 1010-1017, 2018

Age-related variations in global spinal alignment and sagittal balance in asymptomatic Japanese adults. Neurological Research 39(5): 414-418, 2017

Spinopelvic Sagittal Alignment after Microendoscopic Laminotomy in Patients with Lumbar Degenerative Spondylolisthesis. Journal of Neurological Surgery. Part A Central European Neurosurgery 79(6): 479-485, 2018

The characteristics of spinopelvic sagittal alignment in patients with lumbar disc degenerative diseases. European Spine Journal 23(3): 569-575, 2014