Method of surgically repairing an injured human joint and a prosthetic device therefor

摘要

A method of surgically repairing an injured human joint such as a finger joint by means of a prosthetic device. The prosthetic device comprises a U-shaped sack partially filled with a pressure sensitive material. The prosthetic device is implanted between two bones comprising the injured joint in a manner to control the growth of the scar capsule at the joint to prevent the joint from becoming stiff. The pressure sensitive material in the sack moves between the two bones in response to any slackness of the scar to fill out the slackness and thereby prevent shortening of the scar that would restrict motion.