Latest Advances in knee Replacement Surgical Technique - Kne3wiz

Total knee replacement technology. Bets 3D augmented surgery with computer assisted knee replacement technique. Latest knee replacement surgery technology involves a very complex set of measurements and angles. If an implant is misaligned or positioned incorrectly, it is more likely to function poorly and the patient may suffer from uneven or successive wear.

For years, orthopaedic surgeons would conduct the complex set of measurements and angles DURING the initial phase of surgery.

Recent technological advances in biomedical engineering software have opened a new chapter on high-performance knee implants.

    Today, we utilize “cutting guides” that are patient-specific, single-use instruments that guide me as I shape the ends of the bones to fit the new implant.
    
    What makes these guides so special is that each one is specifically designed using computer-simulated 3D model of the patient’s own knee. It is then custom built to be used in THAT patient’s surgery.
    
    The process for making the (Visionaire) cutting guides starts with the patient getting a short MRI scan of the knee and a full-length x-ray of the leg (during pre-op visits).
    
    The information from these images is then fed into a software program used by an engineer to build a virtual model of your knee and (the engineer) will send me a pre-op plan detailing the patient’s specific anatomy.
    
    During my pre-surgical planning, I can use the virtual model to easily select the right size implant for the patient AND pre-operatively determine what angle bone cuts I need to make and exactly how much bone I need to remove to insure that patient’s implant is place in the optimal alignment, all before the patient ever reaches the operating room.

Latest Knee Replacement Surgery - Technology in India - Kne3wiz

Computer-assisted total knee replacement is a procedure that utilizes sophisticated computer imaging to assure the highest level of precision during the total knee replacement surgery in Ahmedabad. With the aid of a real time infrared based tracking system, we can achieve virtually perfect alignment and soft tissue balance, which are the two most critical components of a successful knee replacement.

In some ways, computer-assisted surgery is similar to the commonly used GPS systems found in aircraft and automobiles. Both systems localize specific positions in space in relation to their surroundings. Where the GPS system uses satellites and the concept of triangulation to locate positions, the surgical navigation system uses an advanced stereotactic camera and an infrared light source to locate points in space. The sophisticated software system used during surgery measures the position of your bones and the surgeon's instruments in relation to each other simultaneously at all times throughout the procedure.

Over the last decade it has become increasingly clear that using conventional methods of hand held rods and jigs to guide positioning of knee replacement components during surgery lacks in accuracy and doesn't allow the surgeon to align the knee correctly in a consistent and reproducible fashion in a high enough percentage of cases. In addition to this, placing rods into the tibia and femoral bone has the added down side of increase pain, blood loss and introducing fat emboli into the blood stream, all which are associated with less than ideal outcome for the patient.

To address these deficiencies, two new methods were introduced: one involves using special infra-red positioning sensors and a computer that work together to assist the surgeon during the operation to accurately perform the bony cuts, forgoing the need for traditional hand held rods and jigs. This first method is often referred to as “computer assisted surgery” (CAS). The computer allows us to accurately cut the correct amount of bone off both the tibia and femur in exactly the right angles to achieve the perfect fit and balance for each patient. This method has consistently been shown to be accurate in a number scientific studies.