Adjacent Instability after Instrumented Lumbar Fusion

Wen Jer Chen*, Po Liang Lai, Lih Huei Chen

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

10 Scopus citations


The invention of pedicle screw instrumentation has greatly improved outcomes of spinal fusion, which has become the treatment of choice for lumbar spondylolisthesis. As researchers accumulate experience, both theoretical and clinical advances are continually being reported. A review of the literature and the experience of the authors show that the development of adjacent instability, as in the breakdown of a neighboring unfixed motion segment, is a common consequence of an instrumented lumbar spine. This article reviews the risk factors and surgical treatment of adjacent instability. The authors believe that proper preoperative planning and complete surgical procedures are imperative to prevent adjacent instability. For those who need revision surgery, meticulous surgical techniques can achieve satisfactory results.

Original languageEnglish
Pages (from-to)792-798
Number of pages7
JournalChang Gung Medical Journal
Issue number11
StatePublished - 11 2003
Externally publishedYes


  • Adjacent instability
  • Adjacent segment
  • Failed back surgery syndrome
  • Lumbar fusion
  • Pedicle screw instrumentation


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