Robotic Knee Replacement Surgeon in Nagpur
Treatments
What is Robotic Knee Replacement Surgery?
Conventional knee replacement consists of cutting jigs and instruments which are aligned using the surgeons experience and eyeballing. Locating the centre of hip is to an extent guesswork and most surgeons cut femur at a predetermined angle taking into account height , weight and sex of the patient. In addition conventional TKR needs intramedullary rods for placements of femoral jigs. There are a number of papers which site that even the most experienced surgeon will have an alignment miss by >3degrees in 15 to 20 percent of the cases that is to say he will be right about 80 – 85% of the time only.
More recently, computer-assisted systems have been developed to improve the positioning of the prosthesis components with the goal of improving the postoperative prosthesis alignment, which in turn should improve the overall survivorship of the prosthesis. Computer-assisted surgery (CAS) has shown to improve the positioning of implant placement and more properly align the lower limb mechanical axis according to the desired plan. CAS has shown to reduce outliners of mechanical leg axis >3° valgus/varus deviation compared to the conventional technique.
History of Robotic Assisted Surgery
Navigation was first tried experimentally in the 1980s but has revolutionized joint replacement in the last decade. Frederich Picard performed the first intraoperative computer-navigated knee replacement surgery in 1997.
How it Works?
Image Free Technique
This is the most commonly used technique for navigated TKR. It utilizes the technique of bone morphing or surface registration. In a predetermined sequence the surgeon here identifies the key anatomical landmark for the computer. Registration will than tell the computer where the bone is in three dimensions. The most fundamental aspect of registration is accuracy in doing this. Once registration is completed, it is possible to proceed with the surgery.
Registration & Planning
After the initial process of registration, the computer gathers the information regarding joint anatomy and size and limb alignment and matches the anatomy with the size and type of implant. The computer then gives the information regarding the orientation of bony cuts, implant sizing and soft tissue tension.
Cutting, Sizing, Component Position & Verification
After registration the surgeon sets the cutting blocks in his preferred alignment and slope. The alignment is confirmed on the computer screen within a degree and millimeter. The computer receives the information in real time via beacons fixed to the patient’s bones using infrared sensors of an infrared camera. The computer screen provides the visual images required for the surgery in real time allowing surgeon to correctly place the jigs. The decision is taken by the surgeon.
Advantages & Disadvantages of Robotic Knee Replacement Surgery
- Real time assessment of tissue balancing at any angle of flexion with patella in place as compared to conventional TKR where tensioning devices can be used in zero and 90° only. This calculation of soft tissue tension aids a surgeon in giving a perfectly balanced knee .
- Accurate restoration of mechanical limb axis.
- Reduced blood loss.
- Decrease in incidence of fat embolism due to extramedullary instrumentation.
- Surgeon is more in control and has power to correct any errors before attempting any cuts.
- Prolonged operative time which comes down as the surgeons gets the hang of it.
- Significant cost for purchase and maintenance of the system which may be neutralized in the long run by improved survivorship and reduced failures and revisions. Although the surgery is performed using a computer system, it does not mean that it can be done by a surgeon with any less knowledge and skill. The procedure combines the surgeon’s skill with computer technology which makes it verifiable intraoperatively.
Robotic Knee Replacement Procedure
Understanding the surgical process can help patients feel more confident about the treatment.
Pre-Surgery Evaluation
Before surgery, patients undergo a medical assessment, which may include:
- Physical examination
- Imaging tests such as X-rays or scans
- Blood tests and medical clearance
Surgical Planning
Robotic technology creates a detailed 3D model of the patient’s knee to guide the surgical plan.
Robotic-Assisted Surgery
During the procedure, the surgeon uses robotic guidance to remove damaged bone and cartilage and place the artificial joint accurately.
Implant Placement
Artificial components made from durable metal alloys and medical-grade plastic replace the damaged joint surfaces.
Recovery After Robotic Knee Replacement
Recovery and rehabilitation are essential parts of successful joint replacement surgery. A structured recovery plan, along with guided physiotherapy and regular follow-ups, helps patients regain knee strength, mobility, and confidence in daily movements.
First 24 Hours
Patients may begin standing and walking with assistance under medical supervision. Early movement helps improve blood circulation and reduces the risk of complications such as stiffness or blood clots. Doctors and physiotherapists guide patients on safe movements and basic exercises during this initial stage.
First Two Weeks
Physiotherapy begins to improve knee movement and strengthen muscles around the joint. Patients gradually increase their walking distance with support from walkers or crutches. Regular exercises help reduce swelling, improve flexibility, and support early recovery.
Four to Six Weeks
Patients gradually return to daily activities with improved mobility. Many individuals are able to walk more comfortably and perform routine tasks with minimal support. Continued physiotherapy during this phase helps restore strength and improve knee stability.
Three Months
Most patients regain comfortable walking ability and improved joint function. Daily activities such as walking, climbing stairs, and light exercises become easier during this stage. With consistent rehabilitation and proper care, patients can achieve significant improvements in mobility and overall quality of life.
Take the First Step Toward a Pain-Free Life
Frequently Asked Questions
What is robotic knee replacement surgery?
Robotic-assisted knee replacement is an advanced surgical technique in which computer and robotic technology assists the surgeon with planning, alignment, bone cuts, implant positioning, and real-time verification during knee replacement surgery.
Is robotic knee replacement better than traditional knee replacement?
Robotic knee replacement offers higher surgical precision and improved implant alignment compared to conventional methods.
How long does robotic knee replacement surgery take?
The procedure typically takes 1 to 2 hours, depending on the complexity of the case.
How long does a knee implant last?
Modern knee implants can last 15–20 years or longer, depending on lifestyle and joint care.
When can I walk after surgery?
Most patients begin walking with assistance within 24 hours after surgery as part of the recovery process.
Why choose Dr. Laghvendu Shekhar for robotic knee replacement surgery in Nagpur?
Dr. Laghvendu Shekhar is an orthopedic surgeon in Nagpur with expertise in joint replacement and robotic-assisted procedures. His practice combines surgical experience with robotic and computer-assisted technology and personalized treatment planning.