A radiographic analysis of cage positioning in lateral transpsoas lumbar interbody fusion

Timothy L. T. Siu*, Elmira Najafi, Kainu Lin

*Corresponding author for this work

Research output: Contribution to journalArticle

1 Citation (Scopus)


Direct Lumbar Interbody Fusion (DLIF) and eXtreme Lateral Interbody Fusion (XLIF) are the most common surgical platforms available for performing transpsoas spinal fusion but no study has been carried out to compare them. We evaluated 21 DLIF and 22 XLIF cage positions by measuring the distance between the posterior vertebral border and the centre of the cage normalised to the midsagittal length of the inferior end plate. We found that DLIF cages were significantly more anteriorly located than XLIF (0.65 vs 0.52, p = 0.001) at L4-5, suggesting that XLIF would permit implantation of wider cages than DLIF.

Original languageEnglish
Pages (from-to)142-146
Number of pages5
JournalJournal of Orthopaedics
Issue number1
Publication statusPublished - 1 Mar 2017



  • cage position
  • lateral transpsoas
  • lumbar vertebrae
  • spinal fusion

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