Abstract: The invention relates to a device for determining the stability of a knee joint. The device comprises includes a measuring sensor (14), which can be attached via a fastening device (16) to a lower leg (12) associated with the knee joint (11). The measuring sensor (14) is designed to measure an acceleration in at least one direction (z) during a movement of the lower leg (12). Furthermore, a processing device (18) is provided for processing measured values of the measuring sensor (14) in order to infer the stability of the knee joint (11) from the processed measured values.

Abstract: The invention relates to an orthopedic orthosis for the purpose of bracing a body region of a patient, which may include at least one sensor contrivance provided for detection of movements of said body region. According to the present invention, provision is made, in particular, for the orthosis to have at least one resiliently deformable sensor portion, which is disposed on the orthosis such that a movement of the body region causes resilient deformation of said sensor portion, that the sensor contrivance has at least one actor for coupling waves into the sensor portion and at least one sensor for sensing the waves coupled into the sensor portion, and that the actor and the sensor of the sensor contrivance are disposed on the sensor portion such that the sensor can sense the wave coupled into the sensor portion by the actor and changed according to the deformation of the sensor portion. The use thereof is for the detection of orthopedically detrimental movements of a patient.