The NEURO FLEX MAX system knee joint is a locked joint, which provides motion control. The patient can unlock it via a lock lever or a pulling cable. It is preassembled in a physiological joint angle of 5°. By exchanging the extension stop and filing the step lock stop disc, a locking in different flexion angles can be achieved.

The system joint has a permanent unlock function and can be used as a free moving, monocentric joint with integrated posterior offset. For this purpose, the lock lever is secured with a locating pin. The patient themself can enable or disable this function.

  • Alternative Function: Furthermore, accessory parts can be used to limit the maximum knee flexion angle (50°–90°) in steps of 10°. For this purpose, it is necessary to mount a flexion stop disc and cover plate specific to the alternative function and, if necessary, to file the flexion stop disc at the second stop. Other flexion angles can be obtained by exchanging the extension stop and filing the flexion stop disc at the first stop.

The NEURO FLEX MAX system knee joint with lock function can also be converted into the NEURO FLEX MAX system knee joint with step lock function. To do so, the locking pawl and the flexion stop disc must be replaced by a step lock pawl and a step lock stop disc.


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