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HIP REPLACEMENT WITH COMPUTER NAVIGATION SURGERY IN INDIA

Computers have become an integral part of everyday life. Virtually all aspects of modern lifestyle depend on computers, be it a washing machine or a modern car. It is therefore no surprise that computers should come to the assistance of surgeons, especially in surgeries where precision is required. Over last decade, extensive research has led to the development of ‘Navigation’ system for use in many surgical fields including Joint Replacement Surgery.

Imagine getting stuck in a middle of a desert with a satellite phone at hand. You can communicate and accurately judge your position on the planet earth with the help of your satellite phone using what is called as global positioning system (GPS)

Computer guided system is also called ‘Navigation’ as it guides the surgeon in all the steps of surgery and even point out errors before they are made. It works like the satellite that detects signals from cars, boats, and other vehicles equipped with special tracking devices. As the surgeon moves an instrument within the patient’s joint, the infrared camera, like the GPS satellite, calculates its position, and then transfers that data to a computer in the operation theater. The computer then shows the direction and location of the instrument. The computer navigates the path of instruments in such a way that the part is fitted in the most optimum position.

Computer aided joint replacement surgery is being used increasingly. It is more commonly used at present in the knee replacement surgery as compared to hip replacement arthroplasty. It is still under developmental phase. The published literature shows there is increased accuracy of the component placement of acetabular cup and femoral stem. We describe the technique for the Stryker navigation system as used in total hip arthroplasty.

The technique used by us presently is an active tracker system. This is a both way communication system of infrared waves between the trackers and the sensors. The trackers are fixed to the bones, then the registration of patient specific anatomy is done and hip arthroplasty is performed with aid of the computer navigation.

HIP Navigation Surgery in india

HIP Navigation provide surgeons the data they need for cup and stem positioning, leg length determination, correct femoral offset and real time intra-operative assessment of stability and range of motion. It helps the surgeon align and orient the hip implant with more precision than ever before..

How does computer navigation work ?

• In the operating room infrared optics and tracking software continually monitor the position and mechanical alignment of the joint replacement components relative to your specific anatomy.
• Minimally invasive smart wireless instruments send data about to the joint movements (kinematics) to a computer.
• The computer analyzes and displays the kinematic data on the screen in the form of charts and graphs.

Some of the latest technology in joint replacement includes not only implant material advances, but also advances in how we place the components during the reconstructive surgery. There are different surgical approaches in hip and knee replacement that can make significant differences in early and late outcomes. Another technology that is attempting to improve early and late outcomes by making implant placement more accurate is computer aided surgery or CAS.

In hip resurfacing it is important that both femoral head and acetabular side implants have been put with proper size, orientation and position. In conventional hip resurfacing these have been put with help of non – CAS instruments which may not be accurate and precise. This inaccuracy and imperfection would lead to early failure and complications like fracture of neck femur.

With the help of CAS both components can be placed with precision and accuracy. This improves the result and longevity of the procedure.[/vc_column_text][/vc_column][/vc_row][vc_row][vc_column][vc_message style=”square” message_box_color=”mulled_wine”]

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