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Illustration of measuring AP1, AP2, LAT1, LAT2. (A,B) represent the anteroposterior (AP) view and lateral (LAT) view of the post-operative radiographs, respectively. AP1 = the width of the Bryan Disc; AP2 = the width of the adjacent endplate; LAT1 = the length of the Bryan Disc; LAT2 = the length of the adjacent endplate.
