What air pressure is good for thigh prosthesis (broken knee)? Please, 3Q.

20,000 knee joints are generally uniaxial air pressure knee joints, which are suitable for patients with long residual limbs. It is characterized by flexible joints, but it is not easy to control. 30,000 is generally a four-bar pneumatic knee joint, which is suitable for many types of residual limbs and is characterized by stability. The specific price depends on the size of the pneumatic cylinder. The air pressure joints between this price range can be equipped with air pressure knee joints of British-Chinese Resistance, Otto Bok, Osso, Linde and other brands.