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The effects of oblique lateral interbody fusion (OLIF) and minimally invasive transforaminal lumbar interbody fusion (MI-TLIF) have not been compared by a meta-analysis. The present study aimed to summarize the radiographic and clinical outcomes of OLIF and MI-TLIF for degenerative lumbar disease.

We performed a systematic review of related studies and report the outcomes of OLIF and MI-TLIF for degenerative lumbar disease. The radiographic outcomes measures included disc height, segmental lordotic angle, lumbar lordotic angle, and fusion. The clinical and functional outcomes included operative blood loss, operative time, length of hospital stay, complications, visual analog scale, and Oswestry disability index. Data pooling and meta-analysis with the random effects model were performed to evaluate the results.

A total of 47 studies met the inclusion criteria. Similar changes in …