In Brief:
The differences in adjacent segment mobility were investigated among lateral lumbar interbody fusion (LLIF), transforaminal lumbar interbody fusion (TLIF), and posterior lumbar interbody fusion (PLIF) with their associated interbody devices. L2–L5 cadaveric spines (n = 21, seven specimens per group) with L3–L4 pedicle screw-rod (PSR)+LLIF, TLIF, or PLIF were tested using pure moment loads (7.5 Nm). LLIF had the least adjacent segment mobility.