he 17BK2 Dynamic Unit is available for all four sizes of 17BK1 Static Correction System joints and, depending on the joint size, provides a maximum spring force of approx. 10 Nm.
The use of the 17BK2 dynamic unit allows extension or flexion, depending on the joint and indicators. The force of the spring is used to slowly return the joint to the desired position.
The tension can be adjusted continuously, allowing individual dynamic treatment of contractures.