Schizas Classification As A Predictor of Complications In Patients Undergoing Over-The-Top Lumbar Decompression

Abstract

Cuauhtemoc Gil Ortiz Mejia, Apolinar De La Luz Lagunas, Andres Jaime Aguirre, Leslie P. Zuniga Macias and Cesar Ivan Hernandez Zamora

Summary: The Schizas classification allows us to speak in a standardized way about the degree of narrowing in cases of the lumbar canal. Currently, the use of minimally invasive approaches has become popular in the tubular over-the-top approach.

Objective: The objective of this study is to show whether there is a relationship between a greater degree of narrowing of the canal according to the Schizas classification with the presence of any early or late complication after a patient undergoes over-the-top lumbar decompression.

Methods: This is an analytical and retrospective study from July 2020 to February 2023. From each of the files, the MR was reviewed to classify the patients according to the Schizas classification, with follow-up in the post-operatory immediately and a follow-up 6 months after the intervention.

Results: We investigated whether there was a relationship between the degree of narrowing of the canal according to the Shizas classification and the presence of late complications, which was the poor response to the intervention, in which a significance of our p=0.035 was obtained, and it was observed that the highest degree of complications was present in the Shizas classifications B and C.

Conclusions: The Shizas classification proves to be a useful tool as a predictor of complications so that we can propose intraoperative strategies for the resolution of this type of complication to reduce risks and costs in this type of tubular decompression.

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