system for the joint treatment of the patient and includes a parent device and a child substituted substitution device. Top substitution device comprises a substituent that is configured to match the shape of the joint surface and the upper and lower devices comprises a substituent that is configured to match the shape of the articular surface and the lower. Each of the substituents and exhibit sufficient flexibility enough to transition to the state inserted in a relatively flat state, in the inserted state any substituent consistent with a multi-side concave surface of the bearing surfaces and substantially to the compressive force if there is correspondence. By such a structure, the system can establish a new interface in the joint after sliding, and can be inserted on the basis of minimum invasion. Substituent may be formed as PEEK, and the corresponding may include a tooth that engages the bearing surfaces. Patient and the system for treatment and a top joint replacement devices, and lower replacement device. Top substitution device comprises a substituent that is configured to match the shape of the joint surface and the upper and lower devices comprises a substituent that is configured to match the shape of the articular surface and the lower. Each of the substituents and exhibit sufficient flexibility enough to transition to the state inserted in a relatively flat state, in the inserted state any substituent consistent with a multi-side concave surface of the bearing surfaces and substantially to the compressive force if there is correspondence. By such a structure, the system can establish a new interface in the joint after sliding, and can be inserted on the basis of minimum invasion. Substituent may be formed as PEEK, and the corresponding may include a tooth that engages the bearing surfaces.환자의 후관절 치료용 시스템은 상위 치환 디바이스 및 하위 치환 디바이스를 포함한다. 상위 치환 디바이스는 상위 후관절면의 형상에 정합하도록 구성된 치환체를 포함하고, 하위 디바이스는 하위 후관절면의 형상에 정합하도록 구성된 치환체를 포함한다. 각각의 치환체는 비교적 평평한 상태에서 삽입된 상태