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Axial three-dimensional CT demonstrating acceptable tibial tunnel placement ranges for anterior to posterior (a/A) of 0.3 to 0.55 and medial to lateral (m/M) of 0.4 to 0.51. Tibial tunnel aperature location is calculated as a percentage of plateau width from the medial edge of the tibia (m/M). The depth of the tibia plateau is measured from the anterior edge (a/A).
