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Tuesday, June 23, 2009

Treating the Knee with Total Knee Replacement Surgery

By Dr. Stefan Tarlow

MIS TKR - Minimally Invasive Surgery for Total Knee Replacement

For a better postoperative experience that includes reduced pain, a minimal hospital stay and quick recovery, patients are enjoying the benefits of minimally invasive surgery for total knee replacement. (MIS TKR).

MIS TKR is accomplished via a very small incision that does not involve the quadriceps tendon. This tendon runs along the anterior of the thigh. Without affecting this tendon, soft muscle trauma is kept at a minimum, and the patient can enjoy a quick and relatively easy recovery time.

A very innovative combination of MIS TKR and Computer Navigation allows the surgeon to make the most accurate placement of the knee possible. Dr. Tarlow has been practicing this unique innovation since August of 2004.

Patients often want to know if they will be a good candidate for MIS TKR. Experienced MIS TKR surgeons can make that determination in-office with an examination and evaluation. Occasionally, the decision to do MIS TKR will be made during knee surgery.

Click here for more on Knee Arthroscopy.

For a number of reasons, women are usually better MIS TKR candidates than men. Women tend to have greater flexibility of the knee tissue or soft tissue mobility. They also often have a mild knee deformity - either knocked or bowed knees - which is actually a benefit. Moreover, they usually possess good ROM (range of motion) preoperatively and a body mass index of less than 35.

Men may not make good candidates for this procedure due to generally having a BMI of greater than 35 coupled with more muscle tissue and stiffness of the knee tissue. Multiple past knee surgeries often complicate the procedure for men as well as large knee deformities.

Computer-assisted surgery reduces errors and improves outcomes in hip and knee surgery. When used in an orthopedic application, computer-assisted surgery is very helpful in identifying the surgical anatomy, which helps improve surgical accuracy.

By using computer based tools it becomes easier to reliably repeat procedures in surgery. These tools increase accuracy and improve quality in surgical procedure. Oddly, these tools are not widely accepted in the US. In Germany, computer based tools are used in surgery forty percent of the time. In the US, this is true only three percent of the time. Technology variations, cost, efficacy and surgeon preference may be the cause of this discrepancy.

In order to best benefit society with this technology, it will be necessary for industry, government, and surgeons to work together to develop standards for computer assisted surgery and imaging.

Click here for more on Dr. Stefan Tarlow, a leading Phoenix knee doctor.

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