Arthroendoscopical surgical method

Abstract

An arthroscopical surgical method including administering a fluorescent chemical agent into a joint, which is a treatment target, allowing the fluorescent chemical agent to be adsorbed by a degenerated region that has degenerated from a normal region in a cartilage inside the joint, which is the treatment target, displaying and observing an emission of fluorescence from the degenerated region, which has adsorbed the fluorescent chemical agent, by infrared excitation light on a display through an arthroscope, and allowing a surgeon to recognize the degenerated region in the cartilage inside the joint, which is the treatment target.

1 . An arthroscopical surgical method comprising:
 administering a fluorescent chemical agent into a joint, which is a treatment target;   allowing the fluorescent chemical agent to be adsorbed by a degenerated region that has degenerated from a normal region in a cartilage inside the joint, which is the treatment target;   displaying and observing an emission of fluorescence from the degenerated region, which has adsorbed the fluorescent chemical agent, by infrared excitation light on a display through an arthroscope; and   allowing a surgeon to recognize the degenerated region in the cartilage inside the joint, which is the treatment target.   
     
     
         2 . The method according to  claim 1 , further comprising:
 identifying the degenerated region in comparison with the normal region by switching to a first observation mode in which the fluorescence is emitted by irradiation of the infrared excitation light to display and observe the fluorescence in the degenerated region on the display through the arthroscope, and a second observation mode in which white light is irradiated and the normal region and the degenerated region in the joint is displayed on the display through the arthroscope and observed.   
     
     
         3 . The method according to  claim 1 , further comprising:
 administering the fluorescent chemical agent to a vein so that the fluorescent chemical agent is contained in blood, and   emitting the fluorescence by the infrared excitation light to display and observe the fluorescence of blood vessels in the joint and bloodstream information on the display through the arthroscope.   
     
     
         4 . The method according to  claim 1 , further comprising:
 transmitting ultrasonic vibration to a treatment portion of an ultrasonic treatment device;   removing the degenerated region so that a subchondral bone is exposed and formed as a bottom surface;   forming a cartilage edge which is nearly angled at 90 degrees with the exposed surface of the subchondral bone to form a pool-shaped depression;   boring the subchondral bone through the depression;   retaining a liquid containing blood, which has exuded from the subchondral bone in the depression; and   encouraging reproduction of the cartilaginous tissues in the depression.