The C-Brace: a leg brace that thinks with every step.

For people living with leg weakness or partial paralysis, the C-Brace by Ottobock does what a locked brace never could — it reads your movement in real time and lets you walk on stairs, slopes, and uneven ground, with support that catches you if you stumble.

A custom-fabricated C-Brace stance-control knee-ankle-foot orthosis
How it works

Not a locked knee. A smart one.

A traditional knee-ankle-foot orthosis (KAFO) gives you one choice: a knee locked straight, or one that swings free. The C-Brace is the first orthosis to control both the stance and the swing phase of your gait with a microprocessor. Sensors track your knee angle and motion continuously, and a hydraulic knee adjusts its resistance instantly — firm when you bear weight, released for a natural bend as you step.

  • Walk at whatever speed feels natural, not one rigid pace.
  • Take stairs and ramps step over step, instead of one leg at a time.
  • Bend the braced leg under load to sit down normally.
  • Cross grass, gravel, and uneven sidewalks with support that adapts.
  • Recover from a trip — stumble detection holds the knee so you can catch yourself.

And it's designed to fit into your day, not dominate it:

  • Low-profile enough to wear discreetly under your clothes.
  • Light enough that walking takes noticeably less effort.
  • Adjustable from a companion smartphone app — including a dedicated cycling mode.
A C-Brace stance-control orthosis in everyday life.
C-Brace stance-control orthosis
Who it helps

People we see benefit most.

The C-Brace is designed for neurological leg weakness. The strongest candidates generally have intact hip and gluteal strength, with weakness or partial paralysis below that level. Leading indications include:

  • Incomplete paraplegia (typically with little to no spasticity).
  • Post-polio syndrome.
  • Incomplete spinal cord injury and certain peripheral nerve injuries.
  • Some neuromuscular conditions, and stroke-related weakness when spasticity is mild and hip strength is sufficient.

Only a hands-on evaluation can tell whether the C-Brace is right for you — which is exactly what a free consultation is for. We evaluate C-Brace candidates at all six of our clinics: Justice (Chicago), Tinley Park, Rockford, Munster, Las Vegas, and Henderson.

The evidence

What the research shows.

The C-Brace is one of the most-studied advanced orthoses available. In published research comparing it with conventional braces, users saw meaningful gains in safety, walking, and confidence:

~70%

fewer falls on average than with conventional braces, in a 2023 randomized trial of 102 people.[1]

33 → 3

average falls in the previous six months, before fitting and again at one year, in a registry of 48 patients.[2]

Faster

walking speed and improved balance confidence, both statistically significant.[2]

A note on results: these are findings from published studies, not guarantees. Individual outcomes vary with your diagnosis, strength, and commitment to rehabilitation — which is why every fitting starts with an honest evaluation.
  1. Ruetz A, DiBello T, Toelle C, et al. A microprocessor stance and swing control orthosis improves balance, risk of falling, mobility, function, and quality of life of individuals dependent on a knee-ankle-foot orthosis for ambulation. Disability and Rehabilitation. 2023;46(17):4019–4032. doi:10.1080/09638288.2023.2258342
  2. Lundstrom RL, Klenow TD, Morris A, et al. The C-Brace microprocessor controlled stance and swing orthosis improves safety, mobility, and quality of life at one year: interim results from a prospective registry. Journal of Rehabilitation and Assistive Technologies Engineering. 2024;11:20556683241269539. doi:10.1177/20556683241269539
The trial

Try it before you commit.

You don’t have to take this on faith. Before a custom C-Brace is ever made, we can fit a trial orthosis so you can feel how it walks — on real stairs, real slopes, in real life. If it works for you, we capture the measurements and casting for a device built entirely around your body, then pair it with a rehabilitation plan so the technology turns into daily function.

Like any powered device, it’s charged and maintained, and there’s a learning curve as you build trust in the dynamic knee. Our role is to be honest about the trade-offs — for some people a traditional KAFO, a different orthosis, or focused therapy is the better fit, and we’ll tell you that. When the C-Brace is right, the difference can be remarkable. Compare the C-Brace with Agilik and NEURO HiTronic →

Cost & insurance

We’ll verify your coverage first.

The C-Brace is billed under Medicare code L2006, the code for microprocessor-controlled knee-ankle-foot orthoses, and is covered under the Medicare leg-brace benefit when it’s medically necessary and prescribed — typically with you responsible for 20% after your Part B deductible. Some commercial plans still review it case by case, so before anything is built we verify your benefits, document medical necessity, and explain any out-of-pocket cost up front — no surprises.

FAQ

Frequently asked questions.

Is the C-Brace covered by insurance?
The C-Brace is billed under Medicare code L2006, the code for microprocessor-controlled knee-ankle-foot orthoses, and is covered under the Medicare leg-brace benefit when it’s medically necessary and prescribed — typically with you responsible for 20% after your Part B deductible. Some commercial plans review it case by case, so we verify your benefits and document medical necessity before anything is built.
How is the C-Brace different from a regular KAFO?
A traditional knee-ankle-foot orthosis usually locks the knee straight for stability, which produces a stiff, tiring gait. The C-Brace controls the knee dynamically with a microprocessor and hydraulics — giving firm support when you bear weight and a controlled bend when you swing your leg, so you can take stairs and slopes step over step.
Who is a candidate for a C-Brace?
It’s considered for people with leg weakness or partial paralysis from conditions such as incomplete paraplegia, post-polio syndrome, incomplete spinal cord injury, certain nerve injuries, and some neuromuscular conditions. The best results tend to come when hip and gluteal strength are intact but the leg is weak below that level. Candidacy is always confirmed by a hands-on evaluation.
Can I try the C-Brace before committing?
Yes. Before a custom C-Brace is fabricated, your orthotist can fit a trial orthosis so you can feel how it walks on real stairs, slopes, and uneven ground. If it works for you, we capture the measurements and casting for a device built around your body.
Is the C-Brace waterproof?
No. The C-Brace is water-resistant for everyday life but is not waterproof — it shouldn’t be worn in the shower or while swimming, and shouldn’t be submerged.
How long does the battery last?
A full charge lasts all day with typical use. The battery is built in, so most people charge it overnight. Charge it while you’re seated or have the brace off, because the brace doesn’t work while it’s charging.