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What is a knee joint?
Knee is a complex joint that connects thigh bone (femur) to the leg bone (tibia). In addition to that, knee cap (patella) articulates with femur.
Normally, joint surfaces are lined with very fine articular cartilage, which ensure movement with minimum friction. There are also other specialised structures inside the knee like the meniscus, which help in knee motion and act as shock absorbers.
What causes knee pain?
If for any reason the cartilage gets worn out, the surface of the joints become rough and movement may become painful.
Joint cartilage usually wears out because of the ageing process, leading to osteoarthritis. Wearing out can also be caused by different forms of arthritis, such as rheumatoid arthritis, post injury arthritis, etc.
How is knee pain treated?
In early stage of knee arthritis, pain can usually be controlled with weight reduction, physiotherapy and mild medication.
During end stage of arthritis, when degeneration or arthritis advances too much, there is severe decrease in joint space and consequently significant amount of pain while walking, getting up from chair, and sometimes even while resting. In such a scenario, surgery may be required to replace the knee.
What is knee replacement?
Knee replacement is a misnomer. It is better to describe it as knee resurfacing or knee arthroplasty. The procedure involves removal of worn out cartilage along with a bit of bone. Then with special tools (jigs), a shape is created to properly fit in an implant. Special bone cement is used to fix the implant to the bone.
Implants help the joint move with very low friction, almost like the original joint. They are metallic on one side and special plastic on the other. At BLK, implants from various international companies are available and only the best are used for such procedures.
Uses of Navigation/ Computer Assistance/ MIS surgery
Navigation may not be required in routine knee replacement. It may be more useful if there are deformities in thigh or leg bones. In routine cases, available jigs are extremely good and accurate.
While long incisions were made earlier, nowadays smaller incisions are utilised with the help of MIS jigs.
What is the surgery process?
How to prepare for surgery?
What is the recovery process?
Discharge from hospital
What precautions should be taken after surgery?
Short- term precautions
Long term precautions
Care At Home
What are the risks / complications of the procedure?
All surgical procedures and anaesthetics carry some risks, particularly if there are other medical problems such as the patient being overweight etc. Our team has been trained to make sure such risks are minimized and the treatment is carried out safely. However, there are some specific risks related to knee surgery that patients need to be aware of. However, chances of immediate complications are less than 2 %.
How soon does a patient recover from surgery?
Frequently asked questions
Q. Do I need knee replacement?
A. It depends on the extent of pain and difficulty in walking. Advice is given after analyzing X-ray findings. It is you who’s suffering from pain and you are as much a part of decision making as your doctor.
Q. Do I need computer assisted or navigation / MIS for my knee replacement?
A. For routine knee replacement, available jigs are extremely good and accurate. Only in cases of complex deformities of thigh and leg bone that computer aided assistance may be required.
Computer navigation is an evolving technology and needs time to achieve perfection in all cases.
While long incisions were made earlier, nowadays we utilize smaller incisions with the help of MIS jigs.
Q. Can I get both knees operated at the same time?
A. It depends on how badly both knees are affected and how sound is your medical status. Knee replacement for both knees can be performed in one sitting
Q. Is knee replacement painful?
A. There are modern methods available for pain relief, such as continuous epidural anaesthesia, patient controlled anaesthesia (PCA) and a mix of certain drugs that can control pain very effectively.
Applying cold compresses around the knee also helps in reducing swelling and pain.
Q. Can I get full bending (flexion) of knee after surgery?
A. There are reports in the media that some knee implants are capable of giving high flexion or full bending of knee. The degree of movement achieved depends on your mobility status before surgery, your weight and good technique of surgery. Surgery is likely to increase your knee movements partially. Implants can only absorb high stress associated with full movement.
Q. Can I sit cross-legged on the floor?
A. Knee replacement implants are bonded to the bone with bone cement. Even though most patients are able to sit cross-legged, it is not recommended. Preventing excessive stress on the bond increases the life of the implant significantly.
Q. Do I need physiotherapy?
A. Physiotherapy is important in achieving early mobility and good knee movement. Physiotherapy starts immediately after surgery. You may need physiotherapy for 4 - 6 weeks. This can be organized at your home or a nearby clinic.
Q. How frequently do I need to visit the hospital?
A. You are required to visit the hospital 10 days after surgery for stitch removal. After that you may be asked to return in 2-4 weeks to track your progress. Subsequent visits are required only after 3 months and 1 year of surgery - unless medical condition dictates otherwise.
Q. Is knee replacement detected by a metal detector?
A. Yes. You should collect a credit card shaped certificate from the orthopaedic office certifying that you’ve had knee replacement. This can be shown to the security staff.
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Technology facilitates correct diagnosis of various ailments for best and shortest road to recovery. Get a closer glimpse of our cutting-edge-technology in the gallery below.
We have world class specialists from around the globe and facilitates correct diagnosis of various ailments for best and shortest road to recovery. Get a closer glimpse of our cutting-edge-technology in the gallery below.