This procedure will have you dancing afterward Knee Pain is a common problem that can be caused by a variety of factors, ranging from arthritis to injury. Joint aspiration is a procedure that can be used to relieve knee pain and prevent the formation of infection. In this procedure, a needle is inserted into the knee joint and fluid is drawn out. In addition, a corticosteroid may be injected into the joint to help reduce inflammation. Ultrasound guidance is used to improve the accuracy of knee j

The group of engineers uses the needle to extend the legs of dead spiders with hydraulic pressure to grasp objects. #engineering | Interesting Engineering