Prolonged standing at work has been linked to health problems including foot, leg and back pain, varicose veins, circulatory problems, including a possible increased stroke risk. [1]. There are many other potentially very serious health concerns. Worsening of existing coronary heart disease as well as varicose veins and chronic venous insufficiency has been associated with prolonged standing. Pain in the lower limbs and feet are also associated. [2] Studies suggest back pain associated with long surgery is about twice as common in those who stand compared to those medical staff who usually work sitting, even after controlling for age and lifting weights. The main reason is the back position must to be inclinate in the most part of the surgery. The design of orthesis for the lower extremity with chest support represents an alternative to medical staff health problems who standing for long periods on surgical procedure. The surgical orthesis system proposal in this research is positioned on middle side of the leg and is designed such that support the body weight during the surgical procedure. The system can be used for release pressure on ankle, knee and hip joints.