[Effect of adjacent segmental facet joint degeneration on adjacent segment disease after lumbar fusion and fixation].

Objective: To explore the effect of facet joint degeneration in adjacent segments on the incidence of adjacent segment disease (ASD) after lumbar fusion and fixation.

Methods: A retrospective analysis was performed on 138 patients who underwent LS posterior lumbar interbody fusion (PLIF) from June 2016 to June 2019. Patients were divided into a degeneration group (68 cases) and a non-degenerative group (70 cases) based on the presence or absence of L facet joint degeneration before surgery (graded using the Weishaupt standard).