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Knee replacement surgery is one of the most effective treatments available when knee pain from arthritis has been present for a long time. Have you tried everything — medication, physiotherapy, injections — and the pain is still there? In such cases, a knee replacement can provide long-term, reliable pain relief.
Some patients prefer to keep trying conservative treatments such as medications and physical therapy. Many others decide to proceed with surgery so they can return to normal daily function and enjoy a better quality of life.
Various factors contribute to this decision. This article helps you understand why and when a patient should consider a knee replacement, including the cost of knee replacement surgery in Singapore in 2026, so you can make an informed decision.
Knee Replacement Surgery And Its Types
Knee replacement surgery, commonly known as knee arthroplasty, is an operation to fix an arthritis-damaged knee. The diseased parts of the knee are removed and replaced with metal components with a plastic (polyethylene) surface in between.
The purpose is to resurface the damaged areas of the knee joint and relieve persistent knee pain that has not responded to other treatments. It improves knee function and allows patients to return to activities they used to enjoy.
There are two main types of knee replacement. As with knee pain causes and treatments, the right choice varies from patient to patient.
Total Knee Replacement
In a total knee replacement, the medial (inner) and lateral (outer) compartments of the knee are replaced. In some cases, the kneecap (patella) is also resurfaced. It typically requires a 10–15 cm incision over the knee, a hospital stay of three to five days, and an estimated three-month rehabilitation period.
Replacing the entire knee is suitable for patients with severe arthritis involving most of the knee joint. It can be performed conventionally, with computer assistance, or with modern robotic technology.
Partial Knee Replacement
A partial knee replacement replaces only one compartment of the knee — usually the medial compartment. It is suitable when the disease and symptoms are confined to a single compartment. The incision is smaller and recovery is often faster. However, not everyone is suitable for this procedure.
To learn more about how the two procedures compare, read our guide on total vs partial knee replacement: which is right for you?
When Should You Get A Knee Replacement?
The main reasons for considering a knee replacement are pain and stiffness that have not improved with conservative treatment. The most common underlying condition is osteoarthritis — a degenerative joint disease that affects the cartilage, or cushioning, of the knee joint. As the cartilage wears away, the bones rub against each other, causing pain, stiffness and difficulty moving the joint.
Knee replacement is not the first treatment option. Orthopaedic specialists first look into conservative treatments such as oral medications, topical creams, weight loss, physical therapy and exercise, or nutritional supplements. When these measures are insufficient, corticosteroid injections or viscosupplementation (gel injections) may help relieve symptoms. However, knee replacement surgery may be required if these are not effective.
Signs That Your Knee Condition Is Not Improving
Some symptoms and signs suggest that your current treatment is not effective, and that you may need to consider a knee replacement:
- Knee pain that severely limits your activity level
- Needing strong painkillers on an almost daily basis to manage knee pain
- Quality of life severely impacted by knee pain
- Knee progressively becoming more deformed (bowing or knock-kneed)
- Low mood or depression as a result of chronic knee pain
- One or more falls caused by your knee condition
Am I Too Young to Undergo Knee Replacement?
Is there a minimum age that one can be considered for knee replacement?
Generally, knee replacements are considered in patients aged 55 years and older. The reason relates to the lifespan of the materials used. At around 20 years, part of the plastic liner (polyethylene) may start to wear, and some patients may then require a revision surgery to change the liner — or the whole implant, if it has loosened.
This does not mean patients younger than 55 cannot be considered for joint replacement. If a younger patient has severe end-stage arthritis affecting quality of life, and understands the limitations and implications of joint replacement surgery, they can still be considered for a partial or total knee replacement after a thorough discussion with an orthopaedic surgeon.
Why Should You Get A Knee Replacement?
The primary purpose of knee replacement surgery is to relieve arthritis-related suffering. Those who struggle to stand up, walk up stairs, or feel pain even while resting may benefit from knee replacement. Improving quality of life and maintaining or enhancing knee function are the other main goals.
The benefits of knee replacement include:
- After surgery, most patients report significantly less pain and improved function
- Walking and other regular knee activities become more comfortable
- Overall sense of well-being rises
- Leg mobility improves
- Surgery often helps patients return to an active lifestyle
Many patients hesitate because they have heard stories of unsuccessful surgeries or persistent pain after the procedure. We want to stress that knee replacements are highly successful at relieving pain and restoring function. While surgery does carry risks, those risks can be managed and reduced by a surgeon trained in knee reconstruction. Talk to us and let us address your concerns.
What is the Cost of Knee Replacement in Singapore (2026)
Another common concern is the cost of knee replacement in a private hospital. Several factors make up the total bill:
- Surgeon Fee — the fee charged by the surgeon for the procedure. At Hip & Knee Orthopaedics we follow the Ministry of Health (MOH) fee benchmarks. The surgeon also charges an attendance fee to review the patient in hospital.
- Anaesthetic Fee — charged by the anaesthetist for administering anaesthesia and monitoring the patient through the procedure.
- Implant Fee — the cost of the implant used in the knee replacement.
- Hospital Facility Fee — the use of the hospital facility, including the hospital stay.
In private hospitals, knee replacement surgery may cost approximately $38,000 to $45,000 before insurance or MediSave deductions, depending on implant type, surgical complexity and the technology used. The surgeon fee for this procedure is $10,600 (mid-MOH benchmark), not inclusive of GST. Costs vary by hospital, ward type and length of stay. Computer-assisted or robotic surgery may increase the cost.
The advantages of having a knee replacement in a private hospital include:
- A well-trained, experienced knee reconstruction surgeon — at Hip & Knee Orthopaedics, both our surgeons have completed two fellowships abroad and perform a high volume of these cases.
- The same doctor at every visit — you see your surgeon at the first consult and at every subsequent visit, building a doctor–patient relationship and trust that is critical to the recovery journey.
- Less waiting time for surgery — the waiting time in a private hospital is usually a few weeks, which can be reassuring for patients in significant pain.
Our clinic is MediSave-accredited, and we participate in the panels of most Integrated Shield Plans. For a personalised cost estimate and financial counselling, contact our clinic so we can guide you through expected fees, insurance coverage and payment options.
Planning Your Recovery
If you decide to proceed, preparation starts before the operation. Learn how to prepare yourself for knee replacement surgery, and what to expect during recovery after knee replacement surgery — from the first days in hospital to returning to work, driving and sport.
Contact Us
It is always better to consult a doctor before deciding what is best for you. Hip & Knee Orthopaedics will walk that journey with you towards a pain-free, functional knee. Contact us to book a consultation, and we will do our best to help.
