Simplified Total Knee Replacement

STKR Technique Sparing Bone & Structures

by H.A.Khawaja, MD

Traditional knee replacement surgery has been proven to be highly successful at alleviating pain and restoring mobility. However, rehabilitation after traditional surgery can be lengthy and painful. People often postpone knee replacement, not wanting to be away from work and everyday activities for months. Others are concerned about bigger incisions.

Recently, Dr H A Khawaja has introduced STKR technique, which spares bones and all structures within the knee joint. Knee joint Replacement is carried out naturally and without the use of artifical implants, which can have a number of serious implications in certain group of individuals.

The benefits of STKR Technique include:

  • No trauma to muscles and tendons—the quadriceps tendon and muscles are avoided rather than cut through or manipulated
  • Smaller, less disruptive incisions—3 to 5 inches versus 8 to 12 inches
  • Quicker recovery
  • No General Anesthesia
  • No blood loss
  • No pain
  • No hospital stay


As with every surgery, the results of the “mini total knee” depend on the patient’s personal circumstances, including a variety of factors, such as weight, activity level, bone quality, and compliance with the physical therapy program.


The Knee 

The knee works as a hinge, joining the femur (thigh bone) to the tibia (shin bone). Cartilage acts as a cushion between the bones, preventing them from grinding directly against one another. Muscles and tendons connect the bones and keep the joint stable. In a healthy knee, all of these factors work together seamlessly.




Osteoarthritis or, less commonly, rheumatoid arthritis can cause the knees to become painful. Rheumatoid arthritis is an autoimmune disorder that causes inflammation of the joints throughout the body. Osteoarthritis can occur after an injury or can be caused by excess body weight, a genetic predisposition, or just normal wear and tear. Over time, the cartilage is damaged and worn away, and eventually, the bones rub directly against one another. This is what causes the pain and permanently damages the knee.


There are a number of things that can help, including physical therapy, exercise, losing weight, using a brace or cane, and taking pain-relieving medications. Unfortunately, the improvement is often only temporary. When these options have been exhausted, Simplified Knee Replacement may be the answer.


In a total knee replacement procedure, the damaged areas of the knee joint are removed and replaced with a combination of implants that allow the joint to glide, bear weight, and perform like a natural knee.

This procedure involves resurfacing and replacing the damaged portions of the knee, including the compartments (condyles) at the end of the femur (thigh bone), the top of the tibia (shin bone), and the underside of the knee cap.

Prior to deciding that a total knee replacement is the best treatment option, the orthopedic surgeon performs a thorough physical examination of the patient, including range of motion testing and X-rays, a complete medical history is taken, and all alternatives are discussed with the patient.

There are many factors used to determine whether a patient is a candidate for total knee replacement in general, and the STKR technique specifically. These can only be evaluated by the surgeon after the patient undergoes the examination and testing mentioned above.


The STKR Technique:

The surgery is performed under “Khawajas Simplified Knee Anesthesia”, using highly specialized instruments. Special guides and instruments allow the procedure to be done utilizing the smaller incision discussed earlier. STKR total knee joint replacement is carried out. Once the surgeon has completed this procedure, the incision is closed.

The surgery usually takes less than 1 hour. No drains are used and the incision is covered by a sterile bandage.

Post-operatively, there is some degree of operative swelling, which subsides quickly. A rehabilitation program is begun in the hospital, as soon as possible following the surgery. Immediately after surgery, the patient is helped to stand; within the first 24 hours, the patient begins walking, usually using a walker. A home exercise program and physical therapy will then be prescribed. Follow-up visits with the surgeon are scheduled within the first one to two weeks after the surgery.

Within weeks of the surgery, most patients are able to walk with a cane or with no support at all. Some patients are even able to resume most normal activities (other than driving) within seven to ten days after surgery. Of course, these recovery times vary with each individual.

The goal of a successful total knee replacement is to relieve pain and stiffness and allow a return to normal daily activities. However, of course, there are still some restrictions—contact sports or activities that put excessive strain on the knee are not allowed. The surgeon and his staff give clear guidelines to each patient, and following these are in the patient’s best interest.