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This is the first study to compare the prone transpsoas (PTP) approach for lateral lumbar interbody fusion (LLIF) and transforaminal lumbar interbody fusion (TLIF) through an analysis of radiographic and clinical outcomes.

A retrospective chart review of data for patients who underwent the PTP approach or TLIF for degenerative lumbar spine disease was conducted. Propensity score matching was completed through the utilization of a linear regression model with the classification of surgery (PTP vs. TLIF) being used as the indicator (dependent variable) and the radiographic outcomes as covariates (independent variables). Both cohorts (PTP and TLIF) were propensity score matched according to preoperative radiographic parameters using a 1-to-1 ratio to the nearest neighbor. Eleven patients in the TLIF group were matched to an equal number of patients in the PTP group who …