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Fri Jul 26 2019

WHAT IS KNEE REPLACEMENT SURGERY?


In today’s life, many of us experience knee pain at some point in their lives. Sports, exercises and other activities can cause muscle strains and more serious injuries to ligaments and cartilage. When one or more of its parts become injured, you may feel different types of knee pain. This can affect people of any age. The severity of the knee pain can vary, from a minor ache to severe and disabling pain. There are various causes that led to knee pain or injury such as:

 

  1. Tear of Knee Cartilage

  2. Dislocation

  3. Rheumatoid Arthritis (painful swelling)

  4. Medial collateral ligament injury

  5. Knee Contusion

  6. Fractures, etc.

Knee injuries are fairly common and some of them can be resolved at home. But if your knee pain continues to more than 3-4 days, it may turn into a severe injury and you should visit a doctor. If you are not able to walk, climb a flight of stairs, or simply get out of a chair. You’ve tried medicines, injections, and physical therapy. Nothing seems to work. If that’s the case, certainly, it could be time to consider knee replacement surgery.

WHAT IS KNEE REPLACEMENT SURGERY?

Knee Replacement Surgery is the most common bone surgery which can help to ease the pain caused by severe arthritis, various deformities in the position of the knee, knee injuries or loss of blood flow in them. There are four main types of  Knee Replacement Surgery which are:

  1. Total Knee Replacement Surgery

  2. Partial Knee replacement Cartilage Surgery

  3. Knee Cap Replacement

  4. Complex Knee Replacement

TOTAL KNEE REPLACEMENT SURGERY

The Total Knee Replacement is a complex procedure that requires an orthopaedic surgeon to make precise measurements to remove the diseased portions of your bone. During the procedure, the surgeon builds the artificial knee inside your leg, one component at a time, to create a highly realistic artificial joint. The procedure of the surgery is as follows: 

STEP-1: MAKING THE KNEE INCISION

The surgeon makes an incision across the front of your knee to gain access to the patella, more commonly referred to as the kneecap. In minimally invasive knee surgery, the incision is usually about 4 to 6 inches long. The jury is still out as to whether or not the pros of the smaller scar outweigh the cons of a smaller surgical area.

STEP-2: ROTATING THE PATELLA (KNEECAP)

The first part of your knee that is exposed is your kneecap, called the patella. Once your knee is open, the surgeon rotates the patella outside the knee area. This allows the surgeon to view the area needed to perform the surgical procedure.

STEP-3: PREPARING THE FEMUR (THIGHBONE)

The first bone your surgeon will resurface is your femur, commonly known as the thigh bone. Once the surgeon has opened up and exposed your knee joint, he or she will carefully measure your bones and make precise cuts using special instruments. The damaged bone and cartilage from the end of the femur are cut away. The end of your femur is cut and resurfaced to fit the first part of the artificial knee, the femoral component.

STEP-4: IMPLANTING THE FEMORAL COMPONENT 

The surgeon attaches the metal femoral component to the end of your femur and uses bone cement to seal it into place.

STEP-5: PREPARING THE TIBIA (SHINBONE)

The next bone your surgeon resurfaces is your tibia or shinbone. The surgeon removes damaged bone and cartilage from the top of the tibia and then shapes the bone to fit the metal and plastic tibial components.

STEP-6: IMPLANTING THE TIBIAL COMPONENT

The bottom portion of the implant, called the tibial tray, is fitted to the tibia and secured into place using bone cement. Once the tray is in place, the surgeon will snap in a polyethene (medical-grade plastic) insert to sit between the tibial tray and the femoral component and act as a kind of buffer. This insert will provide support for your div as you bend and flex your knee.

STEP-7: RE-ADJUSTING THE PATELLA

Before returning the patella to its normal position, the surgeon might need to flatten the patella and fit it with additional plastic components in order to ensure a proper fit with the rest of your implant. The plastic piece, if needed, is cemented to the underlying bone.

STEP-8: FINALIZING THE PROCEDURE

Your surgeon will bend and flex the knee to ensure that the implant is working correctly, and that alignment, sizing, and positioning is suitable. To complete the procedure, the surgeon will close the incision with stitches or staples, and then bandage it and prep you for recovery.

COMPLICATIONS OF KNEE REPLACEMENT SURGERY

Knee Replacement Surgery has emerged as a mainstream surgery. Serious complications occur in less than 2% of cases. However, it’s still important to be aware of the risks before you enter the operating room. The whole procedure does come up with several complications that include:

  1. Complications from Anaesthesia

  2. Blood clot

  3. Infection

  4. Complications from transfusion

  5. Allergy to metal components

  6. Wound and Bleeding injuries

  7. Neurovascular damage

  8. Prosthesis problem and implant failure

  9. Knee stiffness

  10. Artery injuries

It’s important to know the benefits and the risks before undergoing surgery despite the high degree of safety and success associated with Knee Replacement Surgery. Only then can you make the right decision.

RELATED: Know how a physiotherapist can help you in easing your pain.

If you have any queries regarding the knee replacement surgery, you can contact Radix Healthcare, which is known for its highly specialized surgeons for Total Knee Replacement Surgery.





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