The Arthrocentesis Model is an anatomically correct task trainer that is perfect for performing arthrocentesis. The ultrasound compatible model represents an extended left leg and includes the patella, patella ligament, tibia, fibula, femur, synovial sac, and synovial fluid. Simulated synovial fluid can be removed from a joint cavity using either the medial or lateral approach and insertion sites include suprapatellar and parapatellar