Abstract

Little information is available on associations between different lumbar interbody fusion (LIF) surgeries and postoperative outcomes. The present study aims to comprehensively investigate whether different LIF techniques are associated with postoperative outcomes such as complications and length of hospital stay. The United States Nationwide Inpatient Sample (NIS) was searched for patients diagnosed with recurrent lumbar disc herniation who underwent lumbar interbody fusion (LIF) surgeries between 2005 and 2014. Patients were categorized based on LIF approaches: anterior lumbar interbody fusion (ALIF); lateral lumbar interbody fusion (LLIF); or posterior lumbar interbody fusion/transforaminal lumbar interbody fusion (PLIF/TLIF). A total of 2625 patients were included in this study. After adjusting for age, severity of illness, and comorbidities, patients who received LLIF and PLIF/TLIF approaches had significantly shorter hospital stays than those receiving ALIF (LLIF vs. ALIF, β = −0.64; PLIF/TLIF vs. ALIF, β = −0.40). In addition, patients who received LLIF and PLIF/TLIF approaches had significantly lower risk of digestive system complications compared to those receiving ALIF (LLIF vs. ALIF, aOR = 0.25; PLIF/TLIF vs. ALIF, aOR = 0.18). In conclusion, in patients with recurrent lumbar disc herniation, LLIF and PLIF/TLIF approaches are associated with shorter hospital stays and lower risk of digestive system complications than ALIF. However, LIF approaches do not correlate significantly with the risk of postoperative bleeding or nervous system complications.

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