Tag Archives: knee injury

Can You 3D Print Knee Cartilage?

By  aenriquez  published  January 8, 2018

Young or old, you’ve probably felt a nagging pain in your knee at some point.  In fact, some studies suggest that knee pain has increased up to 65% in the over the past few decades. But for some that pain becomes constant and unbearable. That can be for a number of reasons including:

Printing 3D Cartilage for Knee Surgeries

  • Osteoarthritis (often referred to as degenerative or “wear and tear” arthritis
  • Damage to the meniscus or cartilage (this can also be caused by osteoarthritis)
  • Gout
  • Tendonitis
  • Bursitis
  • Torn ligament or tendon

 

For many of these conditions, there are clear treatment plans that pave a way to recovery. However, cartilage damage (the regions of cartilage in the knee are known as menisci) has previously been tricky to treat. But now revolutionary technologies and surgeries could provide hope to those suffering in silence.

 

What do the menisci do?

 

The menisci sit on the bones of your knee and act as cushions. They absorb shocks and make sure the bones of your knee don’t bump and rub against each other. However, unlike most tissues they don’t have a blood supply and as such can’t get the nutrients they need to repair themselves. Damage often occurs in young people with sports injuries. You may hear doctors talk of the “unhappy triad” where athletes tear their ACL, MCL and damage their medial meniscus. This is what happened to Judy Hobson who talked to the DailyMail about her road to recovery

 

“I had to give up sport altogether. I could barely walk a couple of hundred yards and was starting to limp. I was miserable because it was such a huge part of my life. I even thought about having my leg amputated and being fitted with an artificial limb”

 

A 3D printing breakthrough

 

New hope could be on the horizon as researchers at the University of Alberta are working on 3D printing knee cartilage needed for transplant surgery. They have been able to print a 3D leaf made of natural proteins. One of the engineers, Stella Matthews, said

 

“It is the first step towards tissue engineering,”

 

Next, they will try to print cartilage shaped for the individual that surgeons can transplant into the patient’s knee.

 

What can be done at the moment?

 

Whilst these results are highly exciting, they aren’t available for the patient right now. However, patients can still have a meniscus replacement surgery. This is what Judy Hobson had done. Again talking to the Daily Mail she said

 

“After nine months, I could walk more than a mile pain-free – now it’s five or six miles and I’ve also started to play a little volleyball again. I’m so grateful to the person who donated the meniscus.”

 

Specialist clinics across the United States offer the procedure. Ricky Valadez, who had the procedure and talked to Fox32 about it said

 

“The best thing, in the long run, is I’m going to be able to have the opportunity to do whatever I want and not be held back,”.

 

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Can Knee Cartilage Repair Without Surgery?

By  aenriquez  published  November 16, 2017

Knee cartilage repairCan knee cartilage repair without surgery? Cartilage is essential for the free and painless movement of any joint. A common injury to the knee is to the cartilage in the joint. Cartilage – often referred to as hyaline cartilage – in the knee is soft and spongy and has a number of functions. Firstly, it acts as a shock absorber, absorbing pressure and stopping bone on bone contact during jumping walking and running. Secondly, it maintains the synovial fluid (this is the medical term for the fluid within the joint) within the joint with the right concentrations of salts and other substances. Finally, it provides a smooth surface for joint movement to occur on. By having a smooth surface and stopping bone on bone contact (called eburnation) the joint is able to move freely and without pain. As such, when this cartilage is damaged, pain and an inability to move the joint can occur. This can come on slowly, in the case of osteoarthritis (which is due to long-term wear and tear on the joint) or suddenly, as in the case of a meniscus injury from a twisting motion in sports like Football or Tennis. Either way, the cartilage is often repaired using surgery – but this is associated with a number of risks and is not always ideal for older patients. So can knee cartilage repair without surgery?

One exciting new prospect is regenerative medicine. This stem cell therapy could cause cartilage regeneration. By taking knee cartilage regeneration supplements, patients avoid length and risky surgeries that can actually make the situation worse! There are a number of examples of regenerative medicine for knee cartilage including platelet-rich plasma therapy (whereby somebodies blood without the red blood cells) is given, Bone marrow-derived stem cell injections (as the name suggests, stem cells are taken from bone marrow), Amniotic derived stem cell injections (here stem cells are taken from the amniotic fluid that a baby is surrounded by in the mother’s womb). In platelet-rich plasma therapy, for example, all that is needed is a sample of the patients’ blood. After the platelets are sported out the doctor injects the liquid into the patient painful joint. This is much simpler than a lengthy surgical procedure where patients often have to stay in the hospital to recover. These therapies have been shown to be beneficial in smaller studies for a number of years now. Currently, larger scale studies are underway with promising results. In the future perhaps surgeries to repair cartilage (commonly in the knee but also the elbow, shoulder and other joints) may be a thing of the past!

As we have seen there are options for knee cartilage repair that do NOT involve risky surgery. Regenerative medicine could be the breakthrough many doctors have been waiting for as it is associated with so few risks and has so many benefits.

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Being Managed by One of The Best for a Bicycle Knee Injury

By  aenriquez  published  November 13, 2017

Bicycle Knee InjurykneeOne of the worst orthopedic pathologies one can experience includes a bicycle knee injury. The reason for this is because not only are there three potential bones that can fracture, but numerous another anatomy such as ligaments, tendons, muscles, and soft tissue can be damaged as well. What makes a bicycle knee injury such a potentially problematic trauma is that due to the velocity that an affected individual falls at, this can result in high impact injuries that can involve lots of tissue loss.

Patients who experience severe injuries due to the trauma may end up receiving orthopedic and reconstructive surgeries for the bone and tissue damage sustained. Fractures may include those of the femur (upper leg), patella (knee cap), and/or the tibia and even then fibula (lower leg bones).

Ligament injuries may include those of the collateral ligaments that stabilize the sides of the knee, or the cruciate ligaments which are the support structures inside the knee. If these cruciate ligaments are torn then surgical interventions include either repairing the injured anatomy or replacement of these ligaments with either a donor ligament from the upper leg (graft) or with a synthetic graft if a donor ligament is not appropriate enough.

In order to have the best possible outcomes following such an injury, one will need to be managed by one of the best orthopedic surgeons who specialize in managing such injuries.

One Of The Best  

One of the best orthopedic surgeons specializing in the management of knee injuries is Dr. Sumit Dewanjee, MD, who is based at FXRX in Phoenix, AZ.

Dr. Dewanjee is a Board Certified and Fellowship Trained Orthopedic Surgeon with specialty training in knee surgery to manage injuries, diseases, and disorders affecting this particular joint. The therapies that he is highly competent in performing include the following:

  • Arthroscopy of the knee which entails making small surgical incisions and using small instruments to visualize the inside of the knee and manage any possible problems. Major pathologies such as the mentioned cruciate ligament tears are managed via arthroscopic surgery to improve the recovery time of the patient, as well as to help reduce the risk of any possible complications. Other pathologies such as a tear in the meniscus (cartilage) of the knee are managed this way, too.
  • Partial and total knee replacement surgery which is performed on damaged and severely degenerated knee joints where conservative therapies are no longer helpful or effective.
  • Regeneration of cartilage is performed when there are isolated areas of the knee where the cartilage has worn down, but the patient is not yet a candidate for a total or partial knee replacement. Here, certain procedures, which can only be performed by specialized surgeons such as Dr. Dewanjee, are done which help to stimulate the growth of the missing cartilage in the area where it is needed.
  • Treating arthritis of the knee can be performed by injecting certain medication in the knee joint. The administration of a hyaluronic acid, which is a synthetic type of synovial fluid that is normally found in the knee joints, can only be performed by specialist orthopedic surgeons.
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Most Frequents questions that are asked to a knee surgeon

By  admin2  published  October 6, 2015

Have you ever suffered a knee injury? No, no, not the mere cuts and bruises but one which is deep and cannot be treated from the surface. Such injuries can be painful. In fact, most of you won’t be able to take the pain and gobble down painkillers in one go. But, that’s not the solution, right? If your injury is severe, it may lead to complications later on. So, why not go and see and knee surgeon before things get too complicated?

Taking an appointment with a knee surgeon is no big deal. But yes, finding the right one is. You have the internet. Search for the best knee surgeon in your area and shortlist few names. Then you can see their reputation on the web and get an idea how satisfied their patients are. Select the best one and make an appointment.

It is true that when you visit the chamber of the knee surgeon, you will have a lot of things going on in your mind like:

  • Is my condition pretty severe?
  • Will he want to operate?
  • Do I need a knee replacement surgery? And so on.

In the midst of so many things going on in your mind, you may forget some necessary questions like the cost of a knee surgery, its side effects, how long are you going to take the medicines and etc. do one thing. Write them out on a piece of paper. But yes, do not scribble it. Make a proper list like the one given below:

Questions to be asked to the knee surgeon:

  • What is the guarantee that my implant will be successful and it will not move from its position in future?

Yes, there are few real chances of that happening. You doctor, if he is a reputed one, will make sure that it doesn’t. He will be quite experienced enough to make the right cut at the right angle to insert the implant.

  • What will happen if in future the implant becomes loose?

If you have not noticed yet, doctors do not give a 100% guarantee on anything. But, they give their best to minimize the chances of such incidents as the one mentioned above. If you are aware that you have had a knee transplant, you will be careful for the rest of your life. And that much is required to keep the implant steady. Otherwise, you just have no risk if your doctor is an experienced surgeon.

  • What are the chances of getting an infection?

Knee surgical infection

There is almost no chance of getting an infection if you have chosen an experienced knee surgeon. This is because all surgical instruments are sterilized properly and you will be under the effect of antibiotics that prevent infection.

  • Is there any chance of nerve damage?
knee surgeon phoenix

Nerve damage

Yes, you may have heard about something like this. We all have. But the chances are really less if your doctor is experienced and knowledgeable about the whole thing. He will explain everything to you before you take any decision and less you are satisfied, he will continue answering your questions. After all it’s your knee, a very important contributor in your locomotion.

You can easily find an experienced knee surgeon in Phoenix, Arizona. Just take help of the internet and choose the most reputed one among the results. You will be in good hands for sure.

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