THE FIBULAR INCISURE OF THE TIBIA ON CT SCAN - A CADAVER STUDY

Twenty cadaver lower limbs were used for CT assessment of the fibular incisure of the tibia. The length of the syndesmotic facet is shorter in the anterior (11.20 +/- 1.90 mm) than in the posterior (14.89 +/- 2 .72 mm) (P < 0.001). The angle between anterior and posterior facets i s 135.18 +/- 9.27 degrees. The depth of the fibular incisure of the ti bia is 4.29 +/- 1.26 mm. The vertical distance of tibiofibular overlap ping is 7.81 +/- 1.93 mm. The distance between anterior margin of the tibia and anterior margin of the fibula is 17.40 +/- 3.61 mm. The dist ance between the medial fibular border and the lateral border of the p osterior tibia is 2.01 +/- 0.49 mm. The syndesmotic notch could be div ided into two groups: significant concave surface and shallow concave surface. The position of the fibula in the incisural notch may depend on the depth of the fibular incisure of the tibia during traumatic for ces applied on the syndesmosis. CT can display the tibial tubercles an d clearly demonstrates the fibular incisure of the tibia and the inter ior of the tibiofibular space.