"This procedure, with an anterior approach to the psoas (ATP), was first adopted by Meyer in 1977 1, but it is only with Silvestre (2012) 2 that it was referred to as OLIF."
"Although this technique can be used between L1-S1, for anatomical reasons, it is not necessarily preferred at L1-L2 (due to the thoracic cage, access to the disc space may not be optimal, and also due to the possible presence of floating ribs) as well as L5-S1 (due to the iliac wing and the need to mobilise the iliac vessels) 2."