目的　研究跟骨前部与载距突的解剖关系, 探讨自跟骨前部外侧壁向载距突置钉的可行性和方法。  方法　观察跟骨前部与载距突的解剖形态。用解剖测量法、数字化X线摄影法和多层螺旋计算机断层扫描法,测量36只跟骨标本的前部和载距突数据，确定自跟骨前部外侧壁向载距突进钉点和方向。在标本上模拟置钉，评价置钉的安全性。  结果　跟骨前部与载距突具有密切的解剖关系。跟骨前部长(22.27±2.96)mm，宽(23.60±1.99)mm，高（25.25±3.03)mm。载距突长(24.24±2.27)mm,宽(15.44±1.41)mm,高　(10.96±1.25)mm，前倾角（39.13±5.28）°,外倾角（27.78±4.36）°。自跟骨前部外侧壁取两点向载距突置钉，前点进钉方向为上斜角（21.37±3.35）°，后斜角（22.39±3.13）°，有效固定长度（43.16±2.12）mm；后点进钉方向为上斜角（33.60±4.15）°，后斜角（10.09±1.03）°，有效固定长度（44.69±2.32）mm。模拟置钉，无螺钉穿透跟骨前部上面的骨皮质。  结论    载距突是跟骨骨折螺钉置入的理想位置，自跟骨前部外侧壁可以向载距突安全地置钉，跟骨前部与载距突的相互关系决定螺钉进钉方向和长度。这些数据为跟骨骨折内固定手术提供了可靠的解剖学依据。

Objective　To explore anatomic relationship of the anterior part of calcaneus and sustentaculum tali, and the feasibility of screw insertion from anterolateral wall of calcaneus into sustentaculum tali.　Methods　36 calcaneus specimens were performed anatomic measurement, digital radiography and computed tomography, respectively.  The special focus was on the anatomic parameters of the anterior part of calcaneus and sustentaculum tali. The screw insertion point and direction from anterolateral wall of calcaneus into sustentaculum tali were decided through the simulated operation. Meanwhile, the safety of screw insertion was evaluated.　Results　Anterior part of calcaneus closely related to sustentaculum tali. The length, width and height of them were (22.27±2.96)mm and (24.24±2.27)mm, (23.60±1.99)mm and (15.44±1.41)mm, and （25.25±3.03)mm and (10.96±1.25)mm, respectively. The anteversion and extraversion angles were（39.13±5.28）°and （27.78±4.36）°respectively. Two sites were selected as screw insertion point from the anterior part of calcaneus to the sustentaculum tali. For anterior point, the superior and inferior oblique angles were（21.37±3.35）°and （22.39±3.13）°respectively,  with the effective fixation length of (43.46±2.12）mm. For posterior point, the superior and posterior oblique angles were （33.60±4.15）°and （10.09±1.03）°respectively, with the effective fixation length of （44.69±2.32）mm. No screws penetrated through the cortex of the anterior part of calcaneus.　Conclusions　Sustentaculum tali is a ideal position for screw insertion for treating calcaneal fracture. Screws can be inserted safely into sustentaculum tali from anterolateral wall of calcaneus. The angles of insertion and the screw length are determined by the anatomic relations between them. Our work provide anatomical basis for internal fixation for treating calcaneal fracture.