With nanoscopy, the knee joint can be examined through an outpatient procedure and, if necessary, treated at the same time.

Thanks to nanoscopy, we can provide you with ideal therapy for knee complaints because we can see exactly where your pain is being caused.

What is nanoscopy?

A nanoscopy is a small procedure that allows the doctor to look at changes in your knee joint using a miniature camera. This procedure provides much more accurate and faster information for the doctor. This allows the doctor to choose the best therapy for you.

Nanoscopy instruments
Size comparison: Above you see a nanoscopy device, below a normal arthroscope

How does treatment work?

Before the nanoscopy, your knee is locally anaesthetised. A miniature camera system is then inserted into the knee. The system has a diameter of only 1.9 mm, which is about as thick as a needle used for knee infiltrations.

The doctor receives a live transmission of the current situation of your knee joint via this camera system. If this examination reveals minor cartilage damage or meniscus tears, these can be treated directly in the same session. This saves you a lot of time and costly hospital stays. Since we only treat one patient at a time, the Corona infection risk is also eliminated at this time!

We treatcartilage damage with the proven Chondrofiller collagen. We can also glue meniscus tears back together. To do this, we take a small amount of blood from you and produce the body's own glue from the enzyme thrombin obtained. This glue means that there is absolutely no risk of infection compared to other procedures (e.g. with fibrin).  

Nanoscopy with Dr. Olaf Beck

Nanoscopy for partial cruciate ligament tears

Nanoscopy makes it possible to inject cruciate ligament injuries directly with the patient's own blood (PRP) under visual control. This results in faster healing and a quicker return to training for athletes.

The treatment described above takes about 30 minutes. As no general anaesthetic is necessary, all risks of anaesthesia are eliminated. You can get up immediately after the procedure with the splint on.

The procedure is suitable for injuries where conservative therapy is performed with partial preservation. In this way, a future cruciate ligament replacement can be avoided. This is important because there are sensors in the anterior cruciate ligament that tell the brain where the knee joint is in space. If the cruciate ligament is replaced, this feedback is missing and patients describe this as "It's somehow no longer my knee!".


How is a meniscus tear treated?

First of all, it depends on the degree of cross-linking of the meniscus tear. The damaged parts of the torn meniscus can be removed or sutured after diagnosis. During removal, the frayed parts of the meniscus caused by the tear are sheared off. This allows the rough surface of the torn meniscus to be smoothed. In a few rare cases, the meniscus tear is restored by a transplantation, which is sewn in place and replaced by donor meniscus or biological tissue substitute.

Can a meniscus tear heal by itself? 

Whether the meniscus tear can heal on its own is also decided here on the basis of the degree of injury. You should know that the meniscus contains different zones. Some areas are well supplied with blood and other regions, which are more central in the knee joint, are not.

If the tear is in the region of the meniscus with good blood supply and it does not go too deep into the areas with poor blood supply, it can heal conservatively.

How long does it take for a torn meniscus to heal?

How long the meniscus takes to heal depends on the type and method of treatment and on the individual case of each patient. The exact type of injury and the location of the tear are decisive. In most cases, the meniscus takes 6 to 14 weeks to heal.

How quickly does a meniscus tear need to be operated on?

The pain and inability to move can be painful after a meniscus tear. The knee can usually no longer be fully extended or bent. You should therefore see a doctor as soon as possible to discuss the next steps.

What happens if a torn meniscus is not treated?

If you decide against the recommended treatment for the meniscus tear, this will inevitably lead to cartilage damage and arthrosis. The tear will be further damaged with every movement until walking will only be possible with great difficulty.


1. risks?

Postoperative effect. If this occurs, prosthesis and joint inner mucosa must be removed. Knee is then irrigated several times and then a "spacer" is then inserted (prosthesis made of bone cement containing an antibiotic). This spacer remains in the body for an average of 6 months, patient is not allowed to buy 6 months. After the 6 months, it is replaced with a full prosthesis.

2. complications?

- Incorrect placement of the prosthesis:
- too large or too small implants

Movement restrictions, in the worst case worse after surgery than before.

3. rehabilitation?

6-7 days in hospital. There are rehab facilities or outpatient rehab (4 hours a day in a hospital and treat there) → but for people living alone is not an option. 

4. service life and durability?

Depends on several factors: 

  1. Quality
  2. Medication 
  3. Gender and load 
  4. Positioning of the load, loose prostheses must be replaced. It is advisable to check the prosthesis every 2 years, so that any loosening can be seen and prevented.

5. sports?

Cycling, swimming, no problem. Stop-and-go sports, both shear forces on the knee joint, should be avoided if possible. 

6. the right time for the prosthesis?

This is achieved when the patient says it cannot get any worse. It may be that after the implementation of the knee prosthesis the complaints are worse than before. If a patient can walk 5 km before the surgery, he may be able to walk only 500 m after the surgery. Therefore, the right time is only when there is no other way out. 

7. duration of sick leave?

Sedentary work them earlier than stressful work. On average, it is 8-12 weeks.

8. how long do you walk with crutches?

After an arthroscopy with degenerative procedures, the patient must walk with supports for an average of 4 weeks, after which, depending on the findings, a splint takes over this function. However, if the meniscus is still implanted or if the upper and lower legs have cartilage damage on the opposite side and this has been repaired, this time is extended by 6-6 weeks, depending on the patient's body weight. 

9. what to discuss with doctor before knee surgery?

As a patient, you should leave the consultation with the feeling that you know that and why surgery may be necessary. This is the only way you can go into surgery with a good feeling. Therefore, you should definitely ask what the alternatives to surgery are (and why they may not be an option for you). You should also ask what the possible risks of the operation are - more on this below - as well as when the best time for the operation is. If you are still unsure after the surgery consultation, get a second opinion.

10. Should I get a second opinion before knee surgery?

A surgical intervention on the knee should be avoided if it can be avoided. On the one hand, every patient prefers to avoid going to the hospital, and on the other hand, every operation represents a limited, but nevertheless existing risk that should only be taken if other forms of therapy have been exhausted. This applies in particular to the question of whether an artificial knee joint needs to be used.

The knee joint is the joint in the body that is subjected to the greatest stress. In this respect, problems at the knee joint occur frequently. There are many things you can do to relieve the joint. Avoiding sports that put a strain on the knee in favor of physical activities that are easy on the knee and targeted exercises for the knee (physiotherapy); medication, bandages, orthoses - all of these can help to reduce pain and relieve and stabilize the knees.

Even when surgery is unavoidable, it is often not necessary to use an artificial knee joint. Today, there are already procedures that can even repair extensive cartilage damage with a transplant (cartilage cell transplantation).

If your treating physician advises you to undergo surgery, then it makes sense to obtain a second opinion. Often, obtaining a second opinion is also covered by health insurance. Of course, there are clear criteria as to when which procedure should be used. But there are also borderline cases where different specialists may well have different opinions. So if you want to be sure whether surgery is really necessary in your case, you should definitely get a second opinion from an expert in the field.

But always keep in mind that risk also brings opportunity; avoiding one risk can lead to another. Going without knee surgery may not only result in permanent pain and reduced mobility in the knee joint and, therefore, quality of life. It can also have repercussions on the leg and hip, should the pain lead to incorrect stresses in the knee.

11. what is the recovery process?

This question is very individual and cannot be answered in general terms. It depends on the individual case and in particular on the type of surgical intervention. In any case, it will take several weeks before you can walk again without crutches after a knee operation, and it usually takes up to six months, and in some cases even 12 months, before you can put full weight on your knee again.

In the case of a cartilage cell transplant, for example, the knee can usually only be loaded normally again one year after the operation. The recovery process for cruciate ligament tears is also very long; full weight-bearing is not permitted until six months at the earliest. This is more difficult to assess in the case of meniscus surgery. Whatever knee surgery you have, it is very important that physiotherapy begins immediately after the operation and that the recovery process is well supervised by specialists. Therefore, do not miss the follow-up examinations under any circumstances. They help to ensure that the

Whatever knee surgery you get, it is very important that immediately after the operation physiotherapy begins and that the recovery process is professionally well accompanied. Therefore, do not miss the follow-up examinations under any circumstances. They help to ensure that the operation is worthwhile for you and that you can hopefully move (almost) pain-free again.

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What my patients say

"By chance, I found Arthoprax during a Google search. Despite landing from abroad and the complicated diagnosis (cartilage damage to the kneecap), we were immediately impressed by Dr Beck's expertise and rigour. Dr. Beck learned the complex procedure and performed it in an exemplary manner. Dr Beck is thorough like no other orthopaedic surgeon. At our first appointment, he spent almost 45 minutes with us discussing the MRI results and x-rays. What struck us immediately was his holistic vision: the cause may not have been athletic stress (marathon running), but a misalignment of the hip or even a genetic defect. The day after the first meeting I asked for an appointment for surgery and got it within two weeks (Beethovenklinik in Cologne). Immediately after the surgery, at 6:30 in the morning, Dr. Beck came by the clinic. The next day he showed us photos on DVD of the various cartilage wear points. He mentioned in passing that the operation had taken two hours because he had had to find solutions for other defect sites. This practice is highly recommended for athletes. Now I have renewed hope that I can save my knee joint and resume long-distance running. The experience with Dr Beck and his team was just great."  

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"Dr Beck is a very good orthopaedist, always nice and friendly. He also takes time for his patients. I had very severe knee pain and also had a knee arthroscopy in 2011 without much success, but another doctor. After examination and MRI and consultation, Dr Beck explained the new treatment with collagen in great detail and answered every question with patience. When I decided to go for it, the operation by Dr Beck followed. I could hardly believe it, there was almost no pain and the physiotherapy was problem-free. I can only recommend Dr Beck. But also his practice team is always helpful and very friendly. Thank you again for the loving care".

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After detailed questioning about the complaints in the knee, the examination and an initial diagnosis followed, which was confirmed by an MRI. A good and detailed consultation followed, during which medical alternatives were discussed. After a period of reflection and further questions, which were answered patiently and in understandable terms, I decided on the "collagen gel" method to treat the cartilage defect in the course of an arthroscopy. The operation, performed by Dr. Beck himself, went smoothly. There was no pain in the knee after the operation. The follow-up treatment with the appropriate therapies (lymph drainage, gymnastics) was very successful. I am completely satisfied! Thank you Dr. Beck and his team!"  

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At a glance

All treatments

Of course, we also offer other treatments. Here is a brief overview of all of them: