Can talus bone be replaced?
Can talus bone be replaced?
Total talus replacement is a new alternative surgical option for patients with avascular necrosis (AVN), a condition in which poor oxygenated blood flow causes eventual death of the bone.
What is talus surgery?
Talar surgery puts the talus bone back together as best as possible. During surgery you may have a general anesthetic and be completely asleep or have your leg numbed with a nerve block. The bone is exposed with one or two incisions and the broken pieces are realigned.
What is total talus replacement?
Total talus replacement is a new alternative surgical option for patients with AVN, a condition in which poor oxygenated blood flow causes eventual death of the bone. The specific root causes of AVN are somewhat unknown but may include high-impact trauma, drugs or corticosteroids.
Is the talus bone weight-bearing?
The talus (astragalus) articulates above with the bones of the lower leg to form the ankle joint. The other six tarsals, tightly bound together by ligaments below the talus, function as a strong weight-bearing platform.
Why is talus prone to avascular necrosis?
The talus is predisposed to avascular necrosis (AVN), or bone death due to ischemia, owing to its unique structure, characteristic extraosse- ous arterial sources, and variable intraosseous blood supply. Both trau- matic and atraumatic causes have been implicated in talar AVN.
What is talar AVN?
Abstract. The talus is predisposed to avascular necrosis (AVN), or bone death due to ischemia, owing to its unique structure, characteristic extraosseous arterial sources, and variable intraosseous blood supply. Both traumatic and atraumatic causes have been implicated in talar AVN.
Is a fractured talus the same as a broken ankle?
A broken ankle is a fracture of one of the bones of the ankle, including the tibia, fibula, and talus. Any crack, break, or chip in the anklebone is considered a fractured ankle, while a sprained ankle is an injury where there is tear or disruption of the ligaments (the fibrous tissue that holds bone to bone in a joint).
What causes talus pain?
Causes of Stress Fracture of the Talus. Excessive weight bearing and force to the ankle such as seen in running. Other contributing factors are: Bad foot biomechanics, excessive training, ill-fitting footwear, stiffness in the joint, poor flexibility and weakness of the muscle.
Is the Talus an irregular bone?
The talus is a small irregular bone with a joint above it and another one below it. The upper joint is where the bones of the lower leg meet the foot; the lower joint is where the talus meets the bones of the lower part of the foot.
What is synovial joint between the talus and tibia fibula?
The talocrural joint is a synovial hinge joint that connects the distal ends of the tibia and fibula in the lower limb with the proximal end of the talus. The articulation between the tibia and the talus bears more weight than that between the smaller fibula and the talus.
