Fig. 3From: Anterior knee pain post-multiple surgeries for tibia fracture effectively managed with infrapatellar fat pad injection: a case reportInjection into the infrapatellar fat pad. a Injection site (black arrow). The needle entry point is a 3-cm lateral from the center of the patellar tendon. b Ultrasound image after injection of 0.2% lidocaine 3 ml into each of the infrapatellar fat pad and the space between the patellar tendon and infrapatellar fat pad. Echo-free spaces (white arrow) are formed by local anestheticsBack to article page