Résumé
Objective To study the anatomical and morphological characteristics of the subtalar joint surface and to explore its clinical significance. Methods Totally 365 dry calcaneus specimens (sex, age unknown) were selected. Its long axis sum and the short axis sum were measured using Vernier caliper. The Gissane's angle (the angle was formed by two lines along the anterior and posterior articular surfaces of calcaneus respectively) and the Bohler's angle (the angular measurement was formed by a line from the posterior calcaneal margin to the margin of the posterior facet and a second line from the margin of the posterior facet to the superior margin of the anterior calcaneal process) were measured using Goniometer. Results According to the anatomical morphology, the subtalar joint surface can be divided into 5 types: type I (189, 51.78%), type II (80, 21.92%), type III (5 1, 13.97%), type IV (37, 10.14%) and type V (8, 2. 19%). The long axis sum of type III (4. 55±0. 6) cm was significantly smaller than other types (P 0. 05). Conclusion In this experiment, there are five variations in the articular surface of calcaneal talus, mainly type I, and its anatomical morphological classification has certain guiding significance for clinical diagnosis and treatment.