Total Knee Replacement
What is total knee replacement surgery?
Total knee replacement is a surgical procedure used to treat severe knee arthritis or joint damage that has not responded to non-surgical treatment. During the procedure, the worn or damaged surfaces of the knee joint are removed and replaced with prosthetic components designed to restore smooth, pain-free movement.
Dr Varun Arora performs total knee replacement surgery for patients across Melbourne and regional Victoria. The goal of surgery is to reduce pain, correct deformity, and help patients return to the daily activities that arthritis has made difficult.
Total knee replacement is generally considered once conservative measures such as medication, physiotherapy, weight management, and injections no longer provide adequate relief.
What is involved in total knee replacement surgery?
Total knee replacement is performed under anaesthesia and typically involves several key stages:
Preparation of the bone
The surgeon removes the damaged cartilage and a thin layer of bone from the end of the thigh bone (femur), the top of the shin bone (tibia), and, where required, the underside of the kneecap (patella). This creates precisely shaped surfaces for the new implant components.
Implantation
Metal components are fitted to the prepared surfaces of the femur and tibia, with a durable plastic spacer positioned between them to allow smooth gliding movement, replicating the function of healthy cartilage.
Alignment and testing
Careful attention is given to the alignment of the leg and the mechanics of the new joint. Before the incision is closed, the knee is moved through its range of motion and tested for stability and balance.
Recovery
Most patients begin walking with assistance within a day of surgery, with the support of the physiotherapy team. Hospital stay length varies depending on individual circumstances. Rehabilitation continues over several weeks to months, with the majority of patients returning to most normal activities within three to six months, and continuing to notice improvements for up to a year.
What is robotically assisted knee replacement surgery?
Dr Varun Arora offers robotic-assisted technology as an option for total knee replacement surgery. This approach uses detailed imaging to build a personalised, three-dimensional plan of the knee before surgery, which the surgeon uses intraoperatively to guide bone preparation and implant positioning.
Robotic-assisted systems act as a tool to support the surgeon's technique and planning; the surgeon performs and controls every step of the operation. Whether robotic assistance is suitable for a particular patient depends on individual factors, and this will be discussed during your consultation with Dr Arora.
General risks overview
As with any surgical procedure, total knee replacement carries risks. While Dr Arora takes care to minimise these wherever possible, potential risks and complications can include:
Infection
Blood clots (deep vein thrombosis or pulmonary embolism)
Stiffness or reduced range of motion
Ongoing pain
Implant wear, loosening, or the need for future revision surgery
Nerve or blood vessel injury
Leg length or alignment changes
Risks associated with anaesthesia
This is a general overview and not a complete list. Every patient's circumstances are different, and Dr Arora will discuss the risks and benefits relevant to your individual case in detail before proceeding with surgery.
Knee Replacement Frequently Asked Questions
How long will I stay in hospital?
This varies from patient to patient and will be discussed with you as part of your surgical planning.
When can I drive again?
Most patients are able to resume driving once they have regained sufficient strength, movement, and confidence in the knee, generally guided by your surgical team's advice at follow-up.
How long does a knee replacement last?
Modern knee replacements are designed to last many years, though the lifespan of an implant depends on individual factors such as activity level and general health.
Is robotic-assisted surgery suitable for everyone?
Suitability depends on individual anatomy and circumstances. Dr Arora will assess whether this option is appropriate for you during your consultation.
When can I return to work?
This depends on the physical demands of your occupation and your individual recovery. Dr Arora and the physiotherapy team will guide your return-to-work timeline.
Knee Surgery in Melbourne
If you are experiencing knee pain and would like to discuss whether total knee replacement surgery is right for you, contact Dr Varun Arora to schedule a consultation.