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Stress Fracture of the Talus
The talus bone is the bone at the top of the ankle which the tibia or shin bone sits on. Stress fractures of the talus are sometimes seen in footballers and track and field athletes.
Talar stress fracture symptoms
Symptoms of a stress fracture of the talus include pain on the outside of the ankle which will have come on gradually. The pain will get worse with exercise particularly running and ease with rest. There is likely to be tenderness and possibly swelling over the sinus tarsi which is a small canal where nerves pass into the ankle. Bone scans and CT scans can confirm the diagnosis as a stress fracture is unlikely to show up on an X-ray until healing has begun.
Stress Fracture of the talus explained
The talus is a tarsal bone in the ankle which sits on top of the calcaneus or heel bone and supports the tibia and fibula shin bones. The talus is more susceptible to developing a stress fracture when the ankle is repeatedly overpronated and plantar flexed or rolling in and flattening at the same time as pointing the foot downwards.
This movement is seen in pole vaulters who plant the pole too late making the foot land too far forward at take off.
Treatment of a talar stress fracture
Treatment usually involves six weeks immobilization in a plaster cast. Surgery to remove the lateral process of the talus bone is sometimes done which can speed up the healing and rehabilitation process.
Biomechanical correction of any over pronation with orthotic inserts is done if required. Identifying the causes of the stress fracture in the first place is important. This can be training errors, poor technique or simply doing too much too soon.
A full and gradual rehabilitation program to strengthen up the ankle should be done. If the ankle has been immobilized in a cast then mobility exercises will be important initially. Restoring the co-ordination or proprioception of the ankle through balance or wobble board exercises should be done regularly.