Orthopaedics


What is total knee replacement?

Total knee replacement, corroded joint faces, which is made of metal and polyethylene, is the creation of an artificial joint components are coated with a special designed for painless joint movement. Knee arthroplasty performed for the first time in 1968, surgical techniques, developed thanks to advances in materials and design used today has been much more successful treatment.

Total knee replacement is suitable for whom?

Rest, medication, physical therapy modalities, although cane use and applied to treatment methods, such as intraarticular injection uncontrollable knee pain, walking, climbing stairs, such as activities of daily living severely restricted and is suitable total knee arthroplasty in patients with advanced destruction of the articular cartilage. Patients preferred to be between 60-80 years of age, but rheumatoid arthritis and dentures can be made at an earlier age in some special cases, such as osteonecrosis.

Total knee arthroplasty how?

After appropriate anesthesia done through an incision made in front of the index knee joint is reached. Three bones forming the joint (femur, tibia and patella) worn cartilage on the faces contacting each other, cut out with a thin bone layer, then the selected prosthetic components in the appropriate size, bone cement (using polymethyl methacrylate), called a filler, is prepared bone are attached to the surface.

Thus, the joint faces, would re-coated parts made of metal and plastic. The surgery takes between 1-2 hours. Sıklıka epidural for postoperative pain control (placed at the waist) or intravenous pain medication pumps are used that. The next day started with knee motion and stand up with assistance. When you become comfortable in the room and hallway you can walk you can be discharged from the hospital. This period can vary from patient to patient, but varies greatly between 3 and 7 days.

What should I expect after total knee replacement surgery?

Total knee replacement is a significant reduction in knee pain in more than 90% of patients with and walking / stairs to obtain a significant improvement in daily living activities, such as surge. Using a support when you are discharged from the hospital, you will be able to walk in the house. Significant improvement in your pain and independent exit to the street, is different for each patient is between 4 and 8 weeks. Prosthesis after running, jumping and performing sports that require heavy lifting is not appropriate, such activities will shorten the life of the prosthesis. Hiking, golf, can not challenging sports such as swimming. There is a drawback to use the car.
Before surgery, leg deformities in existing curvature and corrected during surgery, it will extend the life of the prosthesis.

In thin patients, the expected movement of the knee after the prosthesis is as seen in the video below.

However, particularly in overweight patients, this motion is less. The average range of motion is around 115 degrees, so to make full Coeli or prayer place after the prosthesis is often not possible. In recent years, though knee motion applied techniques and designs that increase the clarity, the prostheses sit down with the bottom of the foot may be disadvantageous in terms of long-term patient survival.

After total knee arthroplasty magnetic resonance imaging (MRI) can be done?
Most modern knee prosthesis is made of a metal M is compatible with a cobalt chrome alloy. Although indexes also görüntülenemes tissue in close neighborhood, a problem with the withdrawal of another region of the MRI uninhabitable. If you have a prosthesis placed prior to 1990, Mr consult your doctor or metal alloys in terms of the brand fit is appropriate.

Is there a life of total knee replacement?
Total knee arthroplasty forming the metal and plastic parts wear over time, depending on the friction that occurs during movement. Wear eye and emerged to be seen as small metal and plastic prosthesis with the response of the body against the parts separated from the bone may loosen the hold. The life of the appropriate surgical technique and prosthetic knee prosthesis made using modern designs was extended to 15-20 years today. Loose dentures, denture can be repositioned often be removed with a second surgery patients, but the life of the second prosthesis is not as long as the first one.

What complications can occur after prosthesis surgery?
Seen after total knee replacement surgery is very low rate of serious complications arise. The most frequent problem, b AcAğInIzdAki collects clot is formed due to slowing of blood flow in your veins (deep vein thrombosis). Preventive treatment with drugs that are applied to dilute the blood after surgery to prevent it. This treatment may be extended up to 20 days if necessary. Knee movement in the early postoperative period and begin to walk and to refrain from staying still will reduce this risk.

After total knee replacement, the inflammation of the prosthesis infection that occurs between 0.1% and 2%. Another part of the body (eg. Urinary tract, teeth) is infection, the presence of diabetes and other chronic diseases may increase this risk. Preoperative treatment of the body are required to be infection elsewhere. During surgery, preventive antibiotic therapy and special precautions are made reducing the risk of infection during surgery. If the prosthesis developed an infection, recurrent surgeries, procedures such as the placement of the prosthesis is removed again after a certain period of time may be necessary.

Than those listed above, wound healing problems, vascular or nerve injuries, dislocation of the prosthesis some of the parts around the prosthesis fractures, complications such as fractures of the prosthesis itself, but they are very rare.

What should be done to protect them from infection after total knee arthroplasty?
Low te, though bloodstream bacteria reaching your knee prosthesis, there is a risk of creating settlements and infection. If you had a dental or surgical procedures associated with urinary tract within the first two years after prosthesis surgery, you need to use antibiotics prior absolutely. In particular, tooth extraction is an important protection against infection with an appropriate antibiotic one hour before the procedure, such as stone cleaning and root canal therapy. Always consult your physician for orthopedics dose and duration of antibiotics would be appropriate.

Also pay attention to foot care, foot and nail infection symptoms occur you must inform your orthopedic doctor.