A knee joint external fixation device may include: an humeral upper fixation member, a lower tibia fixation member, and a femur fixation member, wherein at least one main support rod and one support rod are disposed between the upper and lower fixation members of the tibia The universal connection or support enables the present invention to expand the various angles of the medial aspect of the tibia according to different patient requirements in response to the high tibial osteotomy； and a joint member is provided between the femoral fixation member and the supracondylar fixation member to counteract the femoral application. The pressure on the inside of the tibial plateau includes a protrusion that can roll and slide relative to a socket of the joint member to allow the femur to roll and traverse the tibial plateau during movement of the knee joint. The movement of the movement allows the present invention to be applied to an external fixation device for a high tibial osteotomy or a knee cartilage tissue repair operation outside the patient's leg.一種膝關節之外固定裝置，可包括：一脛骨上固定構件、一脛骨下固定構件以及一股骨固定構件，其中在該脛骨上、下固定構件間，至少由一主支撐桿及一次支撐桿呈萬向連接或支撐，使本發明可以因應脛骨高位截骨術依不同患者需求撐開脛骨內側的各種角度；而在股骨固定構件與該脛骨上固定構件間，設有一關節構件，以抵消股骨施加於脛骨平台內側的壓力，該關節構件含有一突部可於該關節構件的一承接座上相對地滾動、滑移，以因應膝關節在運動時，股骨在脛骨平台上所進行的滾動及橫移的運動，使本發明可以適用於高位脛骨截骨手術或膝關節軟骨組織修復手術於患者腿部外所裝置的外固定裝置。
