Knee Replacement Surgery in Sydney

Dr Sunny Randhawa is a knee replacement surgeon with clinics across Sydney

At our clinics we offer relief from debilitating knee pain and conditions. Dr Randhawa performs:

  • Knee replacement surgery
  • Knee arthroscopy
  • Knee reconstruction (ACL reconstruction)

For knee replacement Dr Randhawa uses a cutting-edge technique known as Patient Specific Instrumentation (PSI). This ensures each knee replacement is tailored to the patient’s unique anatomy.

PSI surgery utilises custom femoral and tibial positioning guides developed from your MRI or CT scan. This preoperative scan creates a 3D joint reconstruction, which enables Dr Randhawa to plan your knee replacement (1). This technology also allows minimally invasive knee surgery as it involves less soft tissue and bone disruption.

knee replacement surgeons sydney

(1) Personalised positioning guides for total knee replacement

Non-surgical treatments

Patients requiring relief for osteoarthritis and other forms of arthritis of the knee can undergo a number of non-surgical or conservative treatment options. These typically begin with gentle exercise and physical therapy but can become more complex if the arthritis becomes more painful and restrictive.

Surgery is generally only recommended once all conservative treatment has been exhausted. Always consult your GP or orthopaedic surgeon before starting any treatment plan.

Knee arthroscopy

Knee arthroscopy (key hole surgery) uses tiny instruments inserted through small wounds in the skin (2). Damaged tissue can be removed or repaired from within providing relief from pain and swelling.

knee replacement surgery Sydney

(2) Knee arthroscopy diagram

Cartilage Surgery

Some patients encounter ‘potholes’ in the joint cartilage on the end of the bone within the knee. Dr Randhawa can help to correct this issue using a number of treatment options. The following methods are used arthroscopically, typically among younger patients with injuries that may be considered moderate or isolated in nature.

  • Microfracture Arthroplasty

This procedure uses arthroscope to drill small holes into the uncovered bone. The holes are designed to facilitate the growing of cartilage in small areas of damage.

  • Growing Cartilage

Your surgeon can harvest cartilage cells during knee arthroscopy surgery and have them grown in a lab for transportation at a later date. These cells are then implanted into the defect. This procedure is typically suited to younger people and not for sufferers of knee arthritis.

Partial Knee Replacement

Osteoarthritis sometimes occurs in just one of the three compartments of the knee (3). Surgeons can therefore perform a partial knee replacement.

The key advantage is that the majority of the knee is undamaged and untouched as a smaller incision is required (7-10cm). This procedure also has a faster rehabilitation process. The disadvantages are that partial knee surgery may not last as long as total knee replacement.

knee arthritis surgery Sydney

(3) Arthritis affecting only the medial compartment, and x-ray showing a partial knee replacement

Minimally Invasive Surgery: Reducing Trauma to Your Knee

Here the knee surgeon operates while causing as little disruption to the soft tissue surrounding the knee as possible. Consequently your ligaments, tendons and muscles experience less trauma during surgery. This means post-operative pain can be minimised to improve recovery time.

Total Knee Replacement

Dr Randhawa may recommend knee replacement surgery if you have significant arthritis. The joint is not replaced, just the damaged cartilage found at the ends of the bones in your knee.

A knee replacement will resurface a joint with an implant, usually made from metal alloy and polyethylene (4). Implants help to restore function to the knee and eliminate as much discomfort as possible, all while enabling you to return to an active lifestyle.


(4) Tibial tray with polyethylene on left, femoral component on right

The day after surgery the patient begins rehabilitation and walking, with a hospital stay of 4 to 5 days being standard. We’ll begin physical therapy in the hospital and will generally continue with it for about 6 to 12 weeks after discharge. You’ll have X-rays taken on the day after your surgery, and at the 12 week post-operative visit (5).

Knee Replacement surgery has been extremely successful in helping patients with arthritis return to their normal activities and relieve their discomfort.

knee replacement

(5) X-ray taken after a Total Knee Replacement

A hospital stay of 4 to 5 days is expected after this surgery. Physical therapy begins in the hospital and will generally continue with it for about 6 to 12 weeks after discharge. You’ll have X-rays taken on the day after your surgery, and at the 12 week visit (5).

Dr Randhawa will use computer navigation knee replacement (6) to utilise navigation and accurately assess the level of bony cuts, alignment of your knee pre and post-surgery and final prostheses size.


(6) Knee replacement using computer navigation assistance

For further information on knee replacement and surgery please contact us on (02) 9194 3385 or book an appointment online.