Postoperative Sclerotic Modic Changes after Transforaminal Lumbar Interbody Fusion

Author:

Xiao Yang,Zhu Ce,Xiu Peng,Wang Liang,Zhang Zhuang,Deng Zhipeng,Song Yueming,Yang Xi

Abstract

Study Design. A retrospective cohort study. Objective. This study aimed to assess postoperative sclerotic Modic changes (MCs) following transforaminal lumbar interbody fusion (TLIF) for lumbar degenerative disc disease (LDD), investigating their prevalence, risk factors and association with clinical outcomes. Summary of Background Data. Sclerotic MCs may occur in patients with LDD after lumbar interbody fusion. The incidence and characteristics of postoperative sclerotic MCs, as well as their clinical impact, are unknown. Methods. The study included 467 patients (510 levels) who underwent single or two-level TLIF surgery, divided into a postoperative sclerotic MC group (60 patients, 66 levels) and non-MC group (407 patients, 444 levels). The time of development and location of postoperative sclerotic MCs, fusion rate, cage subsidence, bilateral process decompression, and cross-link usage were recorded. Preoperative, postoperative, and follow-up VAS and ODI scores were collected. Multivaraible logistic regression was used to evaluate factors associated with the development of postoperative sclerotic MCs. Results. The prevalence of postoperative sclerotic MCs was 12.8%. The postoperative sclerotic MC group had higher BMI. The postoperative sclerotic MC group demonstrated a fusion rate of 47%, significantly lower than that of the non-MC group (71%) at 6 months post-operation. At final follow-up, the fusion rate in the postoperative sclerotic MC group was 62%, significantly lower than that of the non-MC group (86%). Post-operative VAS and ODI scores were significantly higher in the group with postoperative sclerotic MCs. BMI and osteoporosis were significantly associated with the development of postoperative sclerotic MCs. Conclusion. Postoperative sclerotic MCs generally appear within the first year after surgery, with a prevalence of 12.8%. The presence of postoperative sclerotic MCs can adversely impact post-operative outcomes. To prevent postoperative sclerotic MCs, we postulate extending the immobilization period with external bracing and improving the management of BMI and osteoporosis in the peri-operative time window.

Publisher

Ovid Technologies (Wolters Kluwer Health)

Subject

Neurology (clinical),Orthopedics and Sports Medicine

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