Free Move - An innovative new wrist endoprosthesis
The wrist is by far the most differentiated and complex part of the human musculoskeletal system. Diseases of its joint structure are currently often treated with a wrist arthrodesis, which means the loss of mobility by rigid fixation of the wrist joint. This leads to significant functional limitations of the hand, although the mobility of the wrist could be widely preserved by the use of a wrist endoprosthesis. However, taking the current state of the art into account, wrist endoprostheses are comparatively rarely used as they have a number of disadvantages. Errors such as luxations, loosening or even fractures happen quite often so that conventional wrist endoprostheses frequently have to be replaced after 5 to 7 years. In addition, an endoprosthesis does not always re-establish the full range of motion of the hand.
The invention discloses a customized wrist endoprosthesis based on the patient’s data, with individually designed joint surfaces. This adaptation to the anatomy of the patient should preserve the natural range of motion of the hand as far as possible. Luxation protection prevents displacement of the wrist prosthesis, which often occurs when the natural range of motion is exceeded. The error rate is minimized and the life span of the prosthesis is prolonged. In addition, the inventive endoprosthesis can be produced by the use of additive manufacturing (e.g. 3D-printing). Therefore, its production is cheaper and less complex compared to common manufacturing processes. The invention should enable the patient a pain-free wrist joint replacement and preserve the natural range of motion. In the medium term, the invention should establish an alternative treatment to the wrist arthrodesis commonly applied today.
- Reduction of risks and following surgeries
- Patient-specific adaptation for improved mobility and higher patient satisfaction compared to previous treatment methods
- Cost-effective and simplified production
- Patent application filed, not yet published
- Proof of concept and ongoing research
RWTH Aachen University is looking for partners for patent exploitation and for research partners for joint development.