The invention relates to an orthopedic knee joint, comprising an upper part (2), on which upper connecting means (20) are disposed, a lower part (3) pivotally supported on the upper part (2), connecting means for orthopedic components (4), and a stop ( ) for delimiting an extension movement, wherein the stop (7) is configured displaceably and coupled to an adjusting device (64), which is coupled to a control device (6), which actuates the adjusting device (64) as a function of sensor data and changes the position of the stop (7).一種整形膝關節，具有一上部(2)、一下部(3)、連接整形元件(4)用的接頭手段、及一止擋部(7)，上方接頭手段(20)設在該上部(2)上，該下部以可樞轉的方式支承在該上部(2)上，該止擋部(7)用於限制伸展運動，其中，該止擋部(7)設計成可移位的方式，且與一調整裝置(64)耦合，該調整裝置(64)與一控制裝置(6)耦合，該控制裝置依感測器資料而定將該調整裝置(64)動作並改變止擋部(7)的位置。
