Ankle Block
摘要
The ankle block is a regional anaesthesia technique that provides an effective sensory blockade for foot and ankle surgeries. It involves local anesthetic infiltration around five key nerves: the tibial, deep peroneal, superficial peroneal, sural, and saphenous nerves. These nerves, branching from the sciatic and femoral nerves, collectively supply the sensory innervation to the foot and ankle. The ankle block offers a motor-sparing advantage compared to more proximal lower limb blocks, making it ideal for ambulatory procedures. Both landmark-based and ultrasound-guided approaches can be used to perform the block. The ultrasound-guided technique enhances precision, minimising complications such as vascular puncture or nerve injury. Ankle blocks are widely utilised for perimalleolar and mid-tarsal procedures, providing reliable anaesthesia with a relatively simple and safe technique. Although the risk of complications is low, patients should be monitored for potential falls until the block resolves. Overall, the ankle block is an essential component of regional anaesthesia, offering an effective and practical solution for foot and ankle surgeries with minimal impact on motor function.