Lumbar disc herniation treated by microendoscopic discectomy : Prognostic predictors of long-term postoperative outcome

Der Orthopäde
Xin HongXiao-tao Wu

Abstract

Microendoscopic discectomy (MED) is becoming an established and effective minimally invasive surgical method for the treatment of lumbar disc herniation (LDH); however, the absence of prognostic factors for long-term outcomes after MED results in a lack of specific criteria for appropriate patient selection. Therefore, we evaluated the long-term outcomes and associated predictors in patients who underwent MED for LDH. Baseline and follow-up data for 664 LDH patients who suffered from sciatica and underwent primary MED were reviewed retrospectively. Variables at baseline that were analyzed as potential prognostic factors included sociodemographic characteristics, clinical findings, and imaging features. Follow-up data including improvements in the Visual Analog Scale (VAS) score and Oswestry Disability Index (ODI), postoperative low back pain (LBP), reoperation, and excellent/good results according to the modified MacNab criteria were set as outcome variables for univariate and further multivariate logistic regression analyses. The mean follow-up period was 63.8 ± 20.0 months (range 24-96 months). On average, sufficient improvements in both the VAS score (72.8%) and ODI (63.4%) were observed. In addition, a low postoperative LBP...Continue Reading

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