Background: Percutaneous endoscopic debridement and drainage (PEDD) has played a vital role in
the management of spinal infection; however, limited PEDD results are available to date.
Objectives: The purpose of this systematic review is to examine the existing literature, to give an
objective estimate of the outcomes of PEDD using a meta-analytical approach.
Study Design: Meta-analysis and systematic review of retrospective single-arm studies.
Methods: A comprehensive online review was performed in MEDLINE, EMBASE, PubMed, Web of
Science, and Cochrane databases from 1980 to October 2018. Eligible studies included the singlearm studies that mentioned PEDD in the management of spinal infection. Pooled event rates for
positive bacteria culture, pain control satisfaction, and reoperation were estimated. The complications
of PEDD were also recorded.
Results: Nine single-arm PEDD articles (158 patients) were included. The pooled event rate was
82% (95% CI: 75%-88%) for positive bacteria culture, 81% (95% CI: 73%-87%) for pain control
satisfaction, and 21% (95% CI: 15%-29%) for reoperation. There are few complications reported in
the literature that included transient paresthesia in the affected lumbar segment and local kyphosis.
Limitations: First, all included studies were retrospective series with inherent methodological
limitations. Second, the sample size and the number of studies that were found to be eligible was
small. In addition, all included studies are single-arm, and further studies are necessary in large
randomized controlled trials on comparing the efficacy of conservative therapy, PEDD, and open
surgical intervention.
Conclusions: PEDD not only has a high rate of causative-pathogen identification, but also provides
satisfactory clinical outcome. Early PEDD intervention in spinal infection is encouraging; however,
further studies in large randomized controlled trials on comparing the efficacy of conservative
therapy, PEDD, and open surgical intervention are necessary.
Key words: Percutaneous endoscopic debridement and drainage, spinal infection, meta-analysis