biportal en · ADJ
Etymology
From bi- + portal.
Meanings
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(not-comparable) Having or using two portals.
In addition, bilateral biportal access is necessary for anterior column stabilization when a minimally invasive posterolateral approach is employed (see Chapter 5).
2007, Parviz Kambin, Arthroscopic and Endoscopic Spinal Surgery: Text and Atlas, page 55:The introduction of a biportal approach allowed for direct visualization of instruments introduced through a cannula inserted into the disc from the opposite posterolateral portal.
2011, Harry N. Herkowitz, Steven R. Garfin, Frank J. Eismont, Rothman-Simeone The Spine E-Book: Expert Consult, page 1042: