Inferior Tibiofibular Joint’s Micromovement Characteristics And Its Clinical Guidance On Injury Rehabilitation Exercise

Objective:To get and analyze the data of distal tibiofibular joint’s micromovement, which was tested the ankle joint at different location. This study is to get the data and characteristic of distal tibiofibular joint’s micromovement.Methods:Put two marks at high spot of medial malleolus and lateral malleolus of normal distal tibiofibular joint, and then distal tibiofibular joint were tested the ankle location of dorsiflexion, extension, varus, extroversion by3D-laser scanning camera.Computer calculated the rotation of the two sign object in x, y, z axis(x delegate coronal axis,y delegate sagittal axis,z delegate tibia axis).Results:The more location of ankle joint increased in the condition of dorsiflexion、 extension, varus, extroversion, and the more motion of distal tibiofibular joint.①The more rotation of dorsiflexion increased, The more motion increased in x, y, z axis, but the x axis s change was the most obviously, was-0.73±0.05mm. the y axis’s change was second, that was0.55±0.04mm. The z axis’s change was only a little,that was0.22±0.06mm;②The more rotation of extension increased, the more motion increased in x、y axis, z changed only a little,but the y axis’s change was the most obviously, was1.13±0.10mm. The motion of x and z axis’s change was little, which was0.94±0.09mm and0.67±0.11mm;③The more rotation of varus increased, the more motion increased in x, y, z axis, but the y axis’s change was the most obviously, was1.70±0.16mm. The x and z axis’s change was less, was1.04±0.12mm and0.56±0.07mm;④The more rotation of extroversion increased, the more motion increased in y、z axis, the less motion in x axis, but the y axis’s change was the most obviously, was1.32±0.13mm, the z axis’s change was second, is-0.87±0.10mm. The X axis’s change was third, was-0.84±0.11mm;⑤In every location of the ankle joint, the relative rotation of the fibula showed almost the same characteristics.The more motion of dorsiflexion, extension, varus, and extroversion rotation increased, the more relative rotation of the fibula, The dorsiflexion and extension axis’s change was less, was3.77±0.36°and4.36±0.44°. While the varus and extroversion was more,the varus change was the most obviously,was-6.72±0.35°. the extroversion change was second, was-5.86±0.42°;⑥In the location of varus and extroversion of the ankle joint,The more relative in x, y, z axis of motion changes, while the rotation of varus came to the largest, the fibula’s3D relative motion and rotation came to nearly the largest, in case of this for extroversion was less, for dorsiflexion and extension, the change was even less.⑦The data used in preliminary clinical guidance function to exercise short-term results were satisfactory.Conclusions:①Distal tibiofibular joint’s range of motion is mostly gradually increasing with the increase in ankle’s range of motion.②Distal tibiofibular joint’s fibula relative to the rotation of the tibia with the increase in ankle range of motion and gradually increases.③Basically defines the inferior tibiofibular joint in the ankle joint to do a wide variety of sports specific displacement range in three dimensions and fibula’s relative rotation range to the tibial.④The results of the inferior tibiofibular separation injury rehabilitation exercise in short-term Efficacy of the inferior tibiofibular joint micromovement characteristics of rehabilitation practice methods is worthy of recognition.