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Gradual remodeling of the spinal canal following oblique lateral interbody fusion (OLIF). (A) Preoperatively, a T2-weighted axial magnetic resonance image (MRI) at L4–5 shows severe spinal stenosis. (B) At postoperative 1-week following OLIF, there is no significant change in the spinal canal area. (C) However, a postoperative 1-year MRI shows a significantly widened spinal canal due to the stabilization effect of OLIF.
