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Moderate to Severe Multifidus Fatty Atrophy is the Risk Factor for Recurrence After Microdiscectomy of Lumbar Disc
Fengzhao Zhu1, Dongqing Jia2, Yaqing Zhang1
1Department of Orthopedics, Xinqiao Hospital, Army Medical University, Chongqing, China.
Objective:
We attempted to investigate the potential risk factors of recurrent lumbar disc herniation (rLDH) after tubular microdiscectomy.
Methods:
We retrospectively analyzed the data of patients who underwent tubular microdiscectomy. The clinical and radiological factors were compared between the patients with and without rLDH.
Results:
This study included 350 patients with lumbar disc herniation (LDH) who underwent tubular microdiscectomy. The overall recurrence rate was 5.7% (20 of 350). The visual analogue scale (VAS) score and Oswestry Disability Index (ODI) at the final follow-up significantly improved compared with those preoperatively. There was no significant difference in the preoperative VAS score and ODI between the rLDH and non-rLDH groups, while the leg pain VAS score and ODI of the rLDH group were significantly higher than those of the non-rLDH group at final follow-up. This suggested that rLDH patients had a worse prognosis than non-rLDH patients even after reoperation. There were no significant differences in sex, age, body mass index, diabetes, current smoking and drinking, disc height index, sagittal range of motion, facet orientation, facet tropism, Pfirrmann grade, Modic changes, interdisc kyphosis, and large LDH between the 2 groups. Univariate logistic regression analysis revealed that rLDH was associated with hypertension, multilevel microdiscectomy, and moderate-severe multifidus fatty atrophy (MFA). A multivariate logistic regression analysis indicated that MFA was the sole and strongest risk factor for rLDH after tubular microdiscectomy.
Conclusion:
Moderate-severe MFA was a risk factor for rLDH after tubular microdiscectomy, which can serve as an important reference for surgeons in formulating surgical strategies and the assessment of prognosis.
Insights
Moderate-severe multifidus fatty atrophy (MFA) is a key risk factor for recurrent lumbar disc herniation (rLDH) after tubular microdiscectomy. Identifying MFA aids surgeons in surgical planning and prognosis assessment for rLDH patients.
Area of Science:
- Neurosurgery
- Orthopedics
- Spinal Surgery
Background:
- Recurrent lumbar disc herniation (rLDH) presents a significant challenge after initial surgical treatment.
- Tubular microdiscectomy is a common procedure for lumbar disc herniation (LDH).
- Identifying risk factors for rLDH is crucial for improving patient outcomes.
Purpose of the Study:
- To investigate potential risk factors associated with recurrent lumbar disc herniation (rLDH) following tubular microdiscectomy.
- To identify predictors of poor prognosis in patients experiencing rLDH.
Main Methods:
- Retrospective analysis of 350 patients who underwent tubular microdiscectomy for LDH.
- Comparison of clinical and radiological factors between patients with and without rLDH.
- Logistic regression analysis to determine significant risk factors for rLDH.
Main Results:
- The overall recurrence rate was 5.7%.
- Moderate-severe multifidus fatty atrophy (MFA) was identified as the sole and strongest independent risk factor for rLDH.
- Patients with rLDH showed a worse prognosis, indicated by higher leg pain visual analogue scale (VAS) and Oswestry Disability Index (ODI) scores at final follow-up.
Conclusions:
- Moderate-severe MFA is a significant risk factor for rLDH after tubular microdiscectomy.
- This finding is vital for surgeons in developing surgical strategies and assessing prognosis.
- Early identification of MFA may help mitigate the risk of recurrence.
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