Meet the shock absorber for your knee.

Test drive

Walk a few steps. Feel the difference.

Each step presses your thigh bone onto your shin bone, and the inner side of your knee takes most of it, about 60 to 80 percent. That is why arthritis so often starts there. Take a few steps and watch it heat up, then turn MISHA on.

On a computer, press the space bar to walk. On a phone, tap the button or walk with your phone.

Illustrative: peak knee force in walking (about 2.74× body weight, measured with sensor knee implants) × the inner side's share (we use 70%), and two-thirds of that with MISHA. A bag of sand is 50 lb; the everyday weights are rough averages, there to give a sense of scale. Real forces vary with each person and each step.

Your day

Your knee lifts tons every day.

One step is nothing. Thousands add up. Set up a normal day for you, press play, then replay the same day with MISHA.

• Stand up from a chairPeak ≈ 2.73× body weight
  −

  30 times

  +
• WalkPeak ≈ 2.74× body weight
  −

  5,000 steps

  +
• Squat to pick something upPeak ≈ 2.64× body weight
  −

  20 times

  +
• Go down stairsPeak ≈ 3.38× body weight
  −

  60 steps

  +
• Walk downhillPeak ≈ 3.39× body weight
  −

  0 steps

  +

Illustrative. Peak forces per movement come from people with sensor-fitted knee implants (CAMS-Knee study). We add up one peak per movement, take the inner side's share and, with MISHA, take off one-third. It is a way to picture the load, not a medical measurement.

The upgrade

How MISHA works

• The first of its kind. The MISHA Knee System, made by Moximed, is the first implantable shock absorber for knee arthritis. It works like the shock absorber in a car.
• Your knee stays your knee. It goes under the skin on the inner side of the knee, fixed with small plates to the thigh bone and the shin bone. The joint itself is left in place, and no bone is cut.
• It takes the hit with you. With every step it takes part of the pressure off the inner side of the knee. The Arthritis Foundation describes it as reducing about one-third of the normal load there.
• Who it is for. People with arthritis on the inner side of the knee who still have pain after treatments such as weight loss and physical therapy, and who are not ready for a knee replacement.
• FDA authorized. The US Food and Drug Administration authorized it in 2023.

Curious if it could work for you? Ask an orthopedic surgeon. Only your care team can tell you what is right for your knee.

Sources

1. Arthritis Foundation. FDA Clears New Implant for Knee OA (L. Rath, 25 Apr 2023): the first implantable shock absorber for knee OA; placement, who it is for, one-third load reduction.
2. Moximed. The MISHA Knee System: placed under the skin and outside the joint; no bone cutting; for inner-knee OA pain in people not ready for knee replacement.
3. Vincent KR et al. The pathophysiology of osteoarthritis: a mechanical perspective on the knee joint. PM&R 2012;4(5 Suppl):S3–S9 (inner side carries 60–80% of the load in walking, citing earlier work).
4. Taylor WR et al. A comprehensive assessment of the musculoskeletal system: the CAMS-Knee data set. J Biomech 2017;65:32–39 (peak knee forces measured with instrumented implants).
5. MOTION clinical trial (NCT06843980), Arthritis Foundation trial finder: the implant's design and the ongoing randomized study.

For entertainment and education only. Not medical advice. Concept piece by motionfarm, made from public sources. Not affiliated with or endorsed by Moximed. MISHA is a trademark of its owner.

3D bones: BodyParts3D, © The Database Center for Life Science, licensed under CC Attribution 4.0 International (cropped, smoothed and given cartilage by motionfarm). MISHA is a code-built illustration based on Moximed's public product photos, not the actual device design. BodyParts3D · CC BY 4.0