Failure of a polyether-ether-ketone expandable interbody cage following transforaminal lumbar interbody fusion

Isaac C. Stein, Khoi D. Than, Kevin S. Chen, Anthony C. Wang, Paul Park

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

Purpose: Expandable cages are a more recent option for maintaining or restoring disc height and segmental lordosis with transforaminal lumbar interbody fusion (TLIF). Complications associated with expandable cages have not yet been widely reported. We report a case of postoperative failure of a polyether-ether-ketone (PEEK) expandable interbody device used during TLIF. Methods: A 50-year-old man presented with severe back and right leg pain after undergoing L4-5 and L5-S1 TLIFs with expandable cages and L3-S1 posterior instrumented fusion. Imaging showed retropulsion of a portion of the interbody cage into the spinal canal causing nerve compression. Displacement occurred in a delayed manner. In addition, pseudoarthrosis was present. Results: The patient underwent re-exploration with removal of the retropulsed wafer and redo fusion. Conclusions: Expandable cages are a recent innovation; as such, efficacy and complication data are limited. As with any new device, there exists potential for mechanical failure, as occurred in the case presented.

Original languageEnglish (US)
Pages (from-to)555-559
Number of pages5
JournalEuropean Spine Journal
Volume24
DOIs
StatePublished - May 1 2015

Keywords

  • Complication
  • Expandable interbody cage
  • PEEK
  • Retropulsion
  • TLIF

ASJC Scopus subject areas

  • Surgery
  • Orthopedics and Sports Medicine

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