Fracture of the posterior external tubercle of the talus
Introduction
Introduction to talus posterior tuberosity fracture The talus posterior tuberosity fracture is the result of plantar flexion injury, and the pressure acts on the talus nodules from the posterior lip of the tibia. This occurrence of a cartilage joint fracture is usually the result of a sudden jump of the cheekbones or toes during exercise. The ballerina's talar lateral nodule elongation (Stieda protrusion) is more prone to this damage. basic knowledge The proportion of illness: 0.002% Susceptible people: no specific population Mode of infection: non-infectious Complications: ischemic necrosis
Cause
Causes of posterior talus fractures
The talus fracture is rare, but it can occur when the foot falls from the height, and the foot first hits the ground. Due to the different external forces of the foot, various types of talus fractures are produced, and the foot is flexed and deformed by the posterior tibial or calcaneal nodule. The anterior talus fracture of the talus was caused by the impact of the upper edge.
Prevention
Prevention of talus posterior tuberosity fracture
Appropriate functional exercise, but due to the slow healing of talus fracture, the fixation time should be slightly longer, must be taken by X-ray film, the fracture has been clinically healed before the fixation can be lifted. At this time, the ankle joint should be gradually increased. With smoked and medicated medicine, massage and massage the muscles to promote the blood supply of the foot, prevent the ischemic necrosis of the talus, the fracture is firmly healed, and the weight can be exercised.
Complication
Complications of posterior talus fractures Complications ischemic necrosis
The blood supply to the talus is not sufficient, mainly relying on the nourishing arteries that enter the sacral neck, so it is not easy to heal after the fracture, and even ischemic necrosis occurs.
Symptom
Symptoms of talus posterior tuberosity fracture Common symptoms Ankle pain Foot swelling Swelling Heel congestion and edema
There is often pain and swelling in the back of the ankle, and it is difficult to walk down the mountain or down the stairs. There may also be sustained swelling without a significant history of trauma. The surface can be hot, but to a lesser extent, the patient's pain is aggravated when the foot is bent to the lower leg. It is said that sometimes the dorsiflexion is also the case. However, the latter method is still suspicious. The lateral radiograph of the ankle is necessary for a positive diagnosis. A bilateral X-ray examination should be performed to exclude the triangular bone.
Examine
Examination of talus posterior tuberosity fracture
X-ray examination confirmed the diagnosis.
Diagnosis
Diagnosis and diagnosis of posterior talus fractures
diagnosis
Diagnosis can be based on medical history, clinical symptoms, and laboratory tests.
Differential diagnosis
Post-injury ankle pain, swelling, tenderness, dysfunction are very significant, easy to distinguish from simple ankle sprain, because the calcaneus and ankle fracture can occur simultaneously with talus fracture, sometimes clinical identification is difficult, more need X-ray The diagnosis is confirmed, but the posterior talus fracture is easily confused with a less experienced surgeon with a sub-bone similar in size to the posterior talus. The latter is a smooth-edged sub-bone with no defect at the posterior border of the talus, and a posterior talus fracture. On the contrary, attention should be paid to identification.
