The prepsoas retroperitoneal approach is a minimally invasive technique used for anterior lumbar interbody fusion. The approach may have a more favorable risk profile than the transpsoas approach, decreasing the risks that come with dissecting through the psoas muscle. However, the oblique angle of the spine in the prepsoas approach can be disorienting and challenging. This technical report provides an overview of the use of navigation in prepsoas oblique lateral lumbar interbody fusion in a series of 49 patients.
Keywords: EMG = electromyography; OLIF; OR = operating room; PSIS = posterior superior iliac spine; VAS = visual analog scale; lumbar fusion; minimally invasive spinal fusion; prepsoas lumbar interbody fusion; spinal navigation.