A measurement device for assessing knee movement, comprises: an elongated base member； a moveable member configured for movement along and relative to the elongated base member to provide a first assessment of knee movement； and an auxiliary measuring component mounted to the moveable member to provide a second assessment of knee movement, said auxiliary measuring component including (i) a first arm having a first end and a second end opposite the first end, (ii) a second arm having a first end and a second end opposite the first end, (iii) wherein second end of the first arm is pivotally connected to the second end of the second arm, such that the first arm rotates relative to the second arm, and (iv) wherein the second assessment of knee movement is based on the relative positioning of the first arm relative to the second arm.
