Dr. Basavaraj C M- Best Orthopedic Surgeon in RR Nagar

Joint Replacement Surgery Is For All Age Groups.

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Computer Assisted Joint Replacement in Bangalore | Dr Basavaraj CM

Computer Assisted Joint Replacement


As the name suggests it is computer-assisted surgery, the computer assists the surgeon, but the actual surgery, is done by the surgeon.

Basically there are arrays, which are fixed to the bones (fig 1), which emit/ transmit the infrared signals, which are picked up by an infrared camera. There are also instruments, which emit/transmit the infrared signals which are picked up by the infrared camera (fig -1). These instruments are used to register the important landmarks inside the joint. The infrared camera transmits these signals to the computer. The computer then processes these signals and accurately generates very important parameters such as the weight bearing mechanical axis, the joint line ,and also parameters which helps in gap balancing

Computer Assisted Joint Replacement in Bangalore | Dr Basavaraj CM

More about Computer Assisted Joint Replacement

The weight bearing mechanical axis is a very important parameter on which the long-term survival of the artificial joint depends upon. This can be compared to the vehicle wheel alignment, which is done before the tires are changed (fig-2). If the wheels were not aligned optimally the tires would not last long. Similarly the weight-bearing mechanical axis of the lower limb is deranged when it is affected with osteoarthritis of the knee joint (fig-3). This has to be rectified to optimal levels before an artificial joint is put in, if not the artificial joints would not last long. The computer assistive technology helps in accurately guiding the surgeon as to where the mechanical axis is.

Whatever technology is used, principally one has to make sure that the weight-bearing mechanical axis of the lower limb is realigned (fig-4) before an artificial joint is put in, there are evidences  which emphasizes that this weight-bearing axis has to be corrected to optimal levels to get maximum mileage out of the artificial joints. The artificial joints have interfaces such as metal, cement interface and cement, bone interface that does not tolerate uneven loading and would result in early failure.

There are various techniques of performing a total joint replacement, such as  the mechanical jig-based, computer assisted, patient specific jigs, and robotic arm assisted total joint replacement. Whichever method the surgeon uses, principally one has to make sure that the mechanical weight-bearing axis is realigned to an optimal level, so that the artificial joint implanted would last long. There are evidences to show that by using computer assisted joint replacements this important parameter is realigned very accurately.

Frequently Asked Questions

Computer-assisted or robotic assisted knee replacement is an alternative to the typical knee replacement surgery. In computer-assisted knee replacement surgery, the surgeon uses robotic arm technology to help them perform the total knee replacement surgery

Robotic-assisted procedures allow for greater precision and can lead to shorter recovery times and better results. In more complex cases, a robotic-assisted knee replacement offers a better balance in the soft tissues around your knee, and better aligns the joint.

Dr. Basavaraj C M- Best Orthopedic Surgeon

Interesting Facts About Bone

It takes 12 weeks for a bone to heal.
In general, children’s bones heal faster than adults’ bones. As soon as your bones break, your body springs into action to heal the injury. Within a couple of hours, a blood clot forms around the break. Next, a soft callus made of mostly collagen is created around the fracture, and then a hard callus begins to form two weeks after the break. Depending on the person’s age and health, this process ends between the 6th and 12th weeks

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