US EditionTissue-integrated bionic knee can restore natural movement
MIDDLESEX COUNTY, MASSACHUSETTS, JUL 10 – The osseointegrated mechanoneural prosthesis improves stability and control by integrating directly with bone and nerves, with clinical studies showing better performance than traditional prostheses.
- Scientists at MIT have created an advanced bionic knee that attaches directly to muscle and bone tissue, enabling individuals with above-the-knee amputations to walk more quickly and navigate stairs with greater ease.
- The development builds on the agonist-antagonist myoneural interface surgery that reconnects muscle pairs to generate neural signals controlling the prosthetic limb.
- Two participants received the osseointegrated mechanoneural prosthesis combining AMI and the bone-anchored e-OPRA system, which transmits signals to a robotic controller for better mechanical control.
- The 2024 study showed users with the OMP had greater task performance and stronger feelings of prosthetic embodiment than those with traditional prostheses or AMI alone.
- Dr. Herr described the technology as being an integral part of self and expects the AMI procedure will soon become standard for above-the-knee amputations, pending further clinical trials.
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Bionic knee integrated with tissues may restore natural movement.
Anne Trafton | MIT News MIT researchers have developed a new bionic knee that can help people with above-the-knee amputations walk faster, climb stairs, and avoid obstacles more easily than they could with a traditional prosthesis. Unlike prostheses in which the residual limb sits within a socket, the new system is directly integrated with the user’s muscle and bone tissue. This enables greater stability and gives the user much more control over…
In a small clinical study led by MIT researchers, users of this prosthesis moved more easily and claimed that the limb felt more like part of their body.
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