Ultrasound-Guided Femoral Nerve Block Anesthesia for Tibiofibular Fracture

Objective: The intraspinal anesthesia is the main anesthesia method for the internal fixation of lower limb fracture. It is easy to cause pain aggravation during the process of puncture. Pre-anesthesia by femoral nerve block can reduce the pain of patients. Our purpose study is to complete the internal fixation of tibiofibular fracture through ultrasound-guided femoral nerve block, and to explore its anesthesia effect. Method: A total of 60 patients undergoing internal fixation and reduction of tibiofibular fractures in our hospital in recent years were randomly divided into control group (routine intraspinal anesthesia) and experimental group (addition ultrasoundguided femoral nerve block before intraspinal anesthesia). The localization of femoral nerve under ultrasound guidance was evaluated. The visual analog scale (VAS) of pain at the time of moving from delivery bed to operation bed (T₀) and the placement of intraspinal anesthesia (T₁) was emulated. The heart rate (HR), mean arterial pressure (MAP) and Blood oxygen saturation (SPO₂) were recorded at the time of before operation bed (T₂), after operation bed (T₃), lateral position during puncture (T₄), supine position after puncture immediately (T₅), and 3 min after puncture (T₆). The mini mental state examination scale (MMSE) were evaluated 2 h before operation (T₇) and 2 h after operation (T₈). Result: During the ultrasound guidance, the femoral nerve was the light-colored region of the inverted triangular hyperechoic area on the lateral side of the femoral artery. Compared with control group, the VAS score of T₁ and the HR and MAP of T₄–T₆ in the experimental group were significantly lower. Conclusion: Ultrasound-guided femoral nerve block is simple in location, and it is safe and reliable in anesthesia for the internal fixation of tibiofibular fracture.