What is it about?

This article suggests major and minor classification of failure of lumbopelvic fixation, as well as validated the clinical significance of such classification. Major failure of lumbopelvic fixation will require revision, while minor failure will not. This article also reports clinical and radiographic risk factors for major failure, as well as proposes a modified Lenke classification of posterior lumber fusion grading.

Featured Image

Why is it important?

There is currently no general consensus regarding classification of failure of lumbopelvic fixation in relation to consideration of revision surgery.


In this article, the classification system was clinically validated. This classification was also recently validated through the following biomechanical studies: 1) The Role of Biological Fusion and Anterior Column Support in a Long Lumbopelvic Spinal Fixation and Its Effect on the S1 Screw-An In Silico Biomechanics Analysis. Cho W et al. Spine 46(4):E250-E256. 2) The role of sagittal alignment in predicting major failure of lumbopelvic instrumentation: a biomechanical validation of lumbopelvic failure classification. Cho W et al. Spine Deform. 8(4):561-568. We hope this classification will help guide adult spinal deformity surgeons when considering revision, avoiding unnecessary surgery while maximizing patient benefit.

Dr Woojin Cho

Read the Original

This page is a summary of: Failure of lumbopelvic fixation after long construct fusions in patients with adult spinal deformity: clinical and radiographic risk factors, Journal of Neurosurgery Spine, October 2013, Journal of Neurosurgery Publishing Group (JNSPG), DOI: 10.3171/2013.6.spine121129.
You can read the full text:



The following have contributed to this page