STEMCELL blog

What you need to know about knee replacement

Overview

A total knee replacement is an invasive therapy, by which the ailing knee joint is restored with an imitation substance. The knee is like a pivot joint that facilitate movement at the specific location where the thigh meets the lower leg. The thigh bone joins with the large bone of the lower leg at the knee joint  

How the procedure is performed

While performing the total knee replacement procedure, the edge of the femur bone is detached and restored with a metal covering, the  edge of the lower leg bone is also evacuated and restored with a transmitting plastic material with a metal support. A plastic button may also be joined beneath the kneecap depending on the condition of the knee joint. The imitation substance of the knee joint is called prosthesis

The back cross tendons are tissues that usually balances both the sides of the knee joint so that the lower leg might not be able to glide backward with the thigh bone, in the total knee replacement surgery the certain ligaments are restored, aborted or replaced by polyethylene substance. The total knee replacement is available with a variety of alternates along with certain side effects and benefits

Consideration for total knee replacement

The total knee replacement is ideal for candidates whose knee joints are degenerated by arthritis, sudden fall or any other orthopedic disease. The most reported cause of opting total knee replacement is the osteoarthritis of the knees

Despite of the cause the symptoms of intolerable pain and decreased mobility, hindrances in the routinely tasks encourage sufferers to consider the option of total knee replacement. Taking a decision for total knee replacement is not convenient enough. The patients should consider the potential risks as well as the benefits of  the total knee replacement procedure

What are the risks of undergoing a total knee replacement?

 

As with the surgery,there are several risks attached. The total knee replacement also brings some potential risks that cannot be neglected which include

  • Blood clots
  • Pulmonary embolism
  • Shortness of breath
  • Chest pain which may lead to shock
  • Urinary tract infections
  • Nausea
  • Vomiting
  • Knee pain
  • Liver damage

 

Post operative care

Soon after the surgery, ensure the following post operative care procedures

  • Participate in light exercises
  • Take special protection against injury and fall
  • Visit the orthopedic in a month
  • Before any dental procedure make sure you take a visit with you knee surgeon
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Knee replacement surgery, the best option for knee pain

If you are feeling difficulty in performing your daily activities and routinely tasks. If it has become a problem for you to climb the stairs, walk the dog or simply get out of bed. You have undergone several treatments, injections and therapies, but still no progress, think again it’s a time for knee replacement surgery

Knee replacement surgery is also known as Arthroplasty is one of the most practiced treatment for knee pain caused by arthritis, it will help in relaxing the immobility of the  knee caused by severe arthritis and pain

How the procedure is performed?

 The surgery is done by cutting carefully the injured part of the knee with a sharp instrument and substituting it with metal or plastic instrument. The instrument is then attached with acrylic cement to the shin, thigh bone and knee cap

The need for surgery

The most common reason for knee replacement surgery is Osteoarthritis- condition that occurs in later age when the cartilage between the knee joint breaks other reasons might include;

Rheumatoid arthritis

Occurs when the body’s immune system weakens and damage the lining of the knee

Deformities

People suffering from curved legs or deformed knees can also opt for knee replacement surgery to restore the correct shape of their legs

Knee injuries

A knee replacement surgery can be helpful in certain injuries leading to knee fracture or damage of the tissues, resulting in unbearable pain and immobility of the knee joint

Restrained blood flow

If a patient suffers from loss of blood flow to the knee joints due to any blockage in the  veins, which is commonly known as Osteonecrosis, knee replacement surgery is advised by the clinicians

Different Types of Surgery

Knee replacement surgery can be performed in four different methods depending on the severity of the condition,

Whole knee replacement

This is the most practiced form of knee replacement surgery. During this process the superficial of the shin bone and the thigh bone is replaced that joins with the knee

One sided knee replacement

This surgery is performed with smaller incisions as compared to the total knee replacement procedure, but it is only recommended if you have strong knee tendons. This surgery is performed in the case, if arthritis have attacked your partial knee

Kneecap replacement

In most cases, several physicians contradict with this procedure and the success if the total knee replacement procedure prevails over this method. This method is done by replacing the underside of the knee cap barely

 Revision knee replacement

This procedure is performed if other surgeries are getting no success and your problem persists. In the case of severe arthritis you are advised to undergo this procedure if you already had two or three surgeries

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Is It Safe to Opt for Knee Replacement Surgery?

Our legs carry all our body weight every time we perform any physical activity, especially while we are standing. The skeletal system of our legs is divided as the following;

  • Femur, also called the thigh bone.
  • Tibia, which is the leg bone.
  • Patella, which joins femur and tibia with a hinged joint.

It is very important to take great care for the knee, as it provides flexibility for the legs, which allows us to carry out various activities. An injury to the knee causes severe pain and inability to use the legs for any day-to-day work. These injuries can be caused by direct blows to the kneecap and can also be damaged internally if stretched or twisted more than the hinge joint is capable to tolerate. When the injuries go to the point of doing physical damage to the adjacent bones, the need arises to go for knee replacement surgery.

Today, various sorts of joint replacement surgeries have become very common, as surgery provides a permanent solution to the problem and knee replacement surgery is no expectation today.

If there is a chance that the bones will grow, plastic or metal replacements are used instead of the joint, which is also called prosthesis. There are diverse conditions in which knee replacement surgery is opted for.

  • Unrestricted implant takes place when prosthesis is not connected to anything. It is based on the ligaments and muscles around the knee to establish itself.
  • Semi-limited implant is considered when the surgeon removes the ligaments of inner knee if he feels that this would provide more stability.
  • Constraint implant is generally not the first choice. This implant contains the entire mechanism of knee joint made and replaced artificially and is performed if the knee is badly damaged.

Post-Surgery Routine

Once you have had knee replacement surgery, there are a lot of precautions and exercises involved to keep the knee functioning properly, because the body has to adapt to the new artificial things inserted inside.

Possible Complications

There may also be complications such as infection, blood clotting, loosening or stiffness of the joint while the body is adapting after surgery. This can cause some discomfort, followed by pain, but it indicates that the body is getting accustomed to the implants and the discomfort soon disappears. Within some span of time, the body will start to function as naturally as it can, but precautions must be taken no matter how comfortable the patient feels.

To conclude and answering to the question posed in the title, we can confidently say that knee replacement surgery is 100% safe option if you have to opt for it.