To the top

Page Manager: Webmaster
Last update: 9/11/2012 3:13 PM

Tell a friend about this page
Print version

A Flat Sagittal Spinal Al… - University of Gothenburg, Sweden Till startsida
To content Read more about how we use cookies on

A Flat Sagittal Spinal Alignment Is Common among Young Patients with Lumbar Disc Herniation

Journal article
Authors Olof Thoreson
Joel Beck
Klas Halldin
Helena Brisby
Adad Baranto
Published in Open Journal Of Orthopedics
Volume 6
Issue 9
Pages 294-304
ISSN 2164-3008
Publication year 2016
Published at Institute of Clinical Sciences, Department of Orthopaedics
Pages 294-304
Language en
Keywords Intervertebral Disc Displacement, Sagittal Alignment, Spine, Surgery, Young Adult
Subject categories Orthopedics


Background: Recent studies suggest a correlation between spinal sagittal alignment and different types of lumbar pathologies due to different load patterns on the lumbar spine. The main objective of this study was to investigate the preoperative spinal sagittal alignment in young patients (<25 years) undergoing lumbar disc herniation surgery. Methods: Information regarding preoperative clinical examinations was collected from the patient medical charts. Preoperative MRI examinations were used to classify lumbar types according to four sagittal spinal alignment groups (1: a long thoracic kyphosis, 2: a flat back, 3: a normal spine and 4: an increased thoracic kyphosis). Other MRI findings were also noted. Classification of lumbar types was performed independently by three spine surgeons. To compare two sample proportions the 2-sample z-test was performed. Results: The distribution of lumbar curve types was: Type 1, 17% (9 patients); Type 2, 62% (33 patients); Type 3, 17% (9 patients) and Type 4, 4% (2 patients). The distribution of operated levels was: L3 - L4, 2% (1 patient); L4 - L5, 47% (25 patients); L5 - S1, 42% (22 patients) and L4 - L5 + L5 - S1, 9% (5 patients). Conclusions: A majority of the young patients (62%) that underwent surgery due to herniated disc in the lumbar spine were classified as Type 2 indicating a flat back. Future studies are needed to increase the knowledge about spinopelvic sagittal alignment and the correlation to spinal pathologies.

Page Manager: Webmaster|Last update: 9/11/2012

The University of Gothenburg uses cookies to provide you with the best possible user experience. By continuing on this website, you approve of our use of cookies.  What are cookies?