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Computer technology in knee replacement
May 24th, 2008 · No Comments
In this time Osteoarthritis of the knee is one of the most common disorders, mostly affecting those above 40. It affects more women than men and risk factors include obesity, knee injury and occupational loading.
Due to advancement in modern medical science, more than 25 per cent of the population is older than 60 years but still looks forward to many decades of active life. Painful joints as a result of wear and tear or inflammatory arthritis can be a serious impediment to normal life.
Many of persons experience aches in and around the knee, persistent pain or attacks of acute stabbing sensation, morning stiffness and stiffness associated with pain. The disease is also associated with swollen knee joints, buckling or giving way due to weak knee muscles and tenderness in the knee area. In severe cases, the pain may confine a person to the house. Loss of mobility and dependence on others can be psychologically devastating. This is especially so in elderly people. Fortunately, recent advances in joint replacement surgery can help.
The symptoms depend on the severity of the disease. In mild cases, pain may be felt only at the end of the day or during strenuous activities. With increasing severity, the walking distance gradually decreases and it may be associated with swelling and warmth over the joint even during moderate activities.
In advanced cases, walking without support becomes impossible and pain may be present even when one is resting. Many patients spend sleepless nights for fear of pain even with the slight movement.
Best way in Surgical
Knee replacement may be unicompartmental or involve total replacement of the knee. The surgeon will decide what is best after studying the severity of the pain, the degree of functional impairment and evidence of structural joint damage.
Latest advances through computer
Computer navigation is the latest advance in orthopaedic surgery. The anatomy of the operating area is assessed and displayed accurately and three-dimensionally.
As the surgeon uses an instrument during surgery, the IGS camera calculates its position and transfers the data to a computer. The whole system offers the surgeon a virtual 3D navigation support system. It allows very precise, safe and perfect surgeries.
Computer Navigation enables knee replacement surgery to be performed with greater precision and control. Surgical instruments are continuously tracked by the navigation system, enabling the surgeon to judge the precise position and alignment of the bone cuts.
The benefits to the patient are better alignment, early mobilization and most importantly, decreased wear and tear of the prosthesis. As a result, the longevity of the joint replacements may be extended up to 25 years, which means that many patients may never need a revision surgery in their lives.
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