Amputation/prosthetic foot or leg

Amputees have enormous demands when it comes to the properties of shoes. Even at the beginning of rehabilitation, having the right shoes has a significant impact on the individual’s later gait pattern. The kyBoot stands out from all of the other shoe models on the market thanks to its air-cushion sole. If the amputee struggles to roll over the ankle in normal shoes, this completely disappears with the kyBoot.

The soft, springy soles absorb impact on all surfaces and enable the prosthetic foot to gently use the rollover motion. This saves a lot of energy and relieves stress on the residual limb. As a result, the hips and back are also relieved, which often leads to increased quality of life.

Click here if you are an amputee who wears a prosthesis and would like to get quick and thorough advice from an expert.


Amputation is the removal of a body extremity.

An amputation above the ankle would be described as a major amputation.

The term minor amputation denotes amputations below the ankle region (i.e. up to and including the Chopart amputation).

Border zone amputation is a collective term used in German-speaking countries to refer to the combination of a minor amputation at the border to vital tissue, necrosectomy or debridement.


Most planned limb amputations are necessary as a consequence of arterial occlusion (peripheral arterial occlusive disease). The indication is usually established in stage IV, when extensive tissue necrosis or infected gangrene with pending sepsis develops and vascular surgery measures are not an option or have been exhausted. In exceptional cases the indication is also established in stage III when existing chronic pain cannot be managed and the patient’s quality of life is so restricted that the amputation is the ‘lesser evil’. The amputation level depends on the quality of circulation, which is determined by means of angiography, and the most effective prosthetic fitting option.

Diabetic gangrene is the second most common indication (see diabetes mellitus). In contrast to arterial occlusive disease, the aim here is to carry out what’s known as a ‘border zone amputation’. This means amputating at the most distal location possible, right in the area that is only just still healthy. These are therefore often amputations of the toes, the forefoot (amputation/disarticulation in the Chopart or Lisfranc joint) or the hindfoot (Pirogoff amputation). This approach, which used to be frowned upon and called ‘salami slicing’, has become widely accepted since the 1990s because of improvements in wound management, systemic antibiotic treatment and diabetes control. Nevertheless, many transtibial (lower leg) or transfemoral (thigh) amputations still have to be performed ‘ultima ratio’ as the final option.

Amputations due to accident injuries are rare compared to the first two indications.

Malignant tumours very rarely require a limb to be amputated. Usually these are bone or soft tissue tumours (sarcomas).
There has been a significant increase in amputations in recent years due to MRSA bacteria.

Possible consequences

  • Phantom sensations
  • Phantom pain
  • Postoperative pain
  • Residual limb pain
  • Neuroma pain
  • Wound healing problems, both superficial and deep
  • Deep wound infection
  • Residual limb necrosis
  • Residual limb oedema
  • Contractures
  • Skin diseases on the residual limb
  • Anxiety and depression

Conventional therapy

Aftercare following an amputation primarily covers three areas:

  • Prosthetic fitting
  • Administration of medications
  • Physiotherapy
  • Walking rehabilitation

Alternative forms of treatment such as acupuncture or mirror box therapy are used with great success as well.

The kybun principle of operation – being proactive

The kyBoot offers a unique walking experience for customers with prosthetic legs:

  • Learning the physiological gait after an amputation is much easier with the kyBoot thanks to the soft, springy soles, as the kyBoot does not require the typical heel impact of other shoes and enables the wearer to feel contact with the ground.
  • This relieves the strain on the stump in the prosthetic.
  • The prosthesis holds better, i.e. it is not pushed away from the residual limb as much.
  • The soft, elastic sole compensates for surface irregularities.
  • The toes rarely get caught on the ground in the kyBoot so you stumble much less often.
  • You can tread forward confidently on the prosthesis with an easy rollover.
  • Balance while standing and walking is significantly improved.
  • The legs no longer feel so heavy after walking.
  • You can walk more confidently, more relaxed and save more energy than in conventional shoes. Your gait is also improved.
  • Getting up from a chair or the toilet etc. or getting out of the car is much easier than with other shoes. We also shouldn’t forget the safety factor. The kyBoot has a far wider stepping surface, which reduces the risk of slipping.
  • The kyBoot is extremely slip-resistant on all dry and wet surfaces, even in snowy conditions and on wet stone floors.

Initial reactions

Specific initial reactions when wearing prosthetic legs

You may find the first steps you take in the kyBoot somewhat irritating. This is particularly true for customers who previously always wore hard shoes. This will only have a negligible effect for beginners learning how to walk again. Experience has shown that the body gets used to this within a short period of time . Be patient, it’ll be worth it.

Click here for the general initial reactions experienced by kyBounder and kyBoot beginners: Initial reactions

kybun exercises

For information about the special kyBoot exercises or the basic kyBounder exercises , please click here: kybun exercises

Application tips


  • Take small steps in your kyBoot shoes at first.
  • Be sure to maintain an upright body posture without cramping up!
  • Keep your gaze forward while keeping the shoulders loose.
  • We recommend a second generation kyBoot model(Comfort or SlimFit sole). These models have a somewhat wider sole in the area of the midfoot, providing added stability.
    Seek advice from your local kyBoot expert.
  • Try to consciously perceive the feeling of the roll-off phases. Venture out onto different surfaces. You will subconsciously gain more confidence when walking.
    After a while, you will hardly pay any attention to your steps, which will allow you to relax when walking.
  • If the second generation kyBoot model is too unstable for you, we recommend the kyBounder. You can choose the thickness you are comfortable with (the thicker, the less stable, the more intensive the training). You can also hold on to a fixed object.
  • Precise movements are essential, especially if you suffer from joint pain or osteoarthritis. Pay attention to exact movements and be sure to take a break in case of fatigue or weakness. Lateral/medial rolling of the ankle joint on the soft, elastic material has to be corrected so that the load is applied to the leg with proper axial alignment and so that strain on the back is kept to a minimum. Read more under ‘Lateral/medial rolling of the ankle joint’.
  • Take your time! The kyBoot and the kyBounder are intensive ‘training devices’ and pose a major challenge for the body. It may take a few months before you can walk in the kyBoot or stand on the kyBounder for several hours in a row. The duration of use is highly individual and depends on numerous factors. It also varies from day to day. Listen to your body and accept your personal limits.
  • Contact a kybun dealer you trust if you have further questions, feel unstable or if there is no alleviation of pain when using the kyBoot even though you are following the tips.

Opinions/customer testimonials

I actually discovered the kyBoot completely by chance. I tried on a pair and found that I could actually walk very well in them. Now it is simply my shoe. I can really step on each heel and roll over my foot to the toes. The shoe helps me get a firmer footing and compensates for the movements within my stump. It simply feels great to walk and the main advantage by far is that I don’t stumble anymore. This was always a problem I experienced when I was wearing other shoes.  I would often trip over my toes and stumble when walking on uneven streets.
My strides are longer by six to eight per cent when I’m wearing the kyBoot. According to my calculations, this means that for every 100 kilometres, I need to walk six to seven kilometres less when I’m wearing the kyBoot. This is incredible.
I had my doubts that this incredibly soft air cushioning would be able to withstand the strain of everyday use, so to test it out I wore the kyBoot every day for six months – I didn’t take it off once. When those six months were through, the look and feel of the shoe hadn’t diminished at all.
Shoes are very important. They are an important part of the prosthesis. As I said, I could never find the right shoe for me during all the time I spent wearing the prosthesis. The kyBoot is simply the perfect shoe for me. I first learnt about the kyBoot when I got onto the bus at a different bus stop. I saw a kyBoot shop right behind me. There was an intriguing exhibition going on, where a film was being shown. I went to the shop the next day and asked if the kyBoot could also be something for people who wear prostheses. Mr Meier was very friendly and knowledgeable and gave me all the information I needed. He said he didn’t have any experience with people who wear prostheses, but that I could try on a pair of the kyBoot shoes if I wanted to. I took him up on the offer and since then, I have been impressed with the shoe each and every day.
It was a soft and comfortable feeling. I actually felt very comfortable from the very beginning. I tried walking around in the shoes at this shop for 15 minutes. Then I walked out onto the street right away and wore the shoes all day. I continued to walk, taking tiny steps, feeling very comfortable in the shoes. The main advantage by far is the fact that I don’t stumble anymore. I used to always get caught, either at my toes  or at my heels, which made me skid. Walking is now very pleasant and soft, even for the stump. I no longer feel the hard impact on my knee or stump. It is simply a wonderful, soothing feeling all around.
I am so impressed by the kyBoot. I will never buy myself any other shoe again. That simply won’t do. Once you try the kyBoot, you can never turn back. I can only say positive things about my experiences with the shoe. As I said, I will never wear another shoe brand again.
I had both my legs amputated at the thigh 25 years ago, and two years ago I had the latest high-tech prosthetics fitted. I’d hoped to be able to finally walk better with them but sadly this wasn’t the case and I was left disappointed. Despite the modern technology, which cost me €90,000, I still couldn’t walk on cobblestones.  But then I found the kyBoot shoes online. At first I was unsure about the soft sole of the kyBoot shoes but I discovered a completely new feeling after walking just a few steps. I felt like I could feel every millimetre of the ground. It was incredible that the prosthetic foot unexpectedly began to work and the kyBoot shoes perfected the entire roll-off phase of the foot. Getting up from a chair or out of the car has also proven to be much easier. I don’t slip on wet surfaces or snow anymore thanks to the kyBoot shoes.  I already have four pairs of kyBoot shoes now and cobblestones are no longer a problem! Jürgen Zeller is now a freelance consultant for kybun AG in southern Germany, acting as an expert adviser to other affected individuals. For more information, visit us at
I feel much lighter and smoother when I’m walking. The shoe has changed my whole life.
I can now walk without any pain. I used to always feel a pressure in the prosthesis and was actually always in pain when walking. The pain is now completely gone, and I feel wonderful wearing the prosthesis.
When I first tried on the shoes I felt everything under my feet rolling away. This was a completely new experience for me. People may not realise at all that an amputee with an artificial foot can have so much sensitivity that he can still feel the ground through his prosthetic foot. But this is actually the case.