Knee Replacement Surgery in Singapore

Medically Reviewed by Dr Wang Lushun
Senior Consultant Orthopaedic Surgeon
MBBS (S’pore), MRCS (Edin), MMed (Ortho), FRCS (Ortho) (Edin)

Knee replacement surgery is a treatment option for severe knee arthritis and advanced joint damage when non-surgical measures no longer provide adequate relief. The procedure can help reduce pain, improve mobility, and restore function, allowing patients to return to their daily activities with greater comfort.

At Arete Orthopaedic Centre, Dr Wang Lushun will assess your condition and discuss whether knee replacement surgery is a suitable treatment option for your needs.

What Is Knee Replacement Surgery?

Knee replacement surgery, also called knee arthroplasty, replaces damaged cartilage and bone in the knee joint with artificial components to relieve pain, improve function, and restore mobility.

This is commonly done due to the effects of advanced osteoarthritis, but may also be recommended for conditions such as rheumatoid arthritis, post-traumatic arthritis, or severe knee injuries that have caused significant joint damage.

Depending on the extent of the damage, your surgeon may recommend a partial knee replacement, which replaces only the affected part of the knee, or a total knee replacement, which replaces all damaged compartments of the joint.

What Are the Different Types of Knee Replacement Surgery Available?

The type of knee replacement recommended depends on the extent of joint damage, the condition of the surrounding ligaments and cartilage, and your individual treatment goals. Dr Wang will assess your condition and advise on the most suitable option for you.

Partial Knee Replacement

Partial knee replacement involves replacing only the damaged portion of the knee joint while preserving the healthy bone, cartilage, and ligaments in the unaffected areas. This procedure may be suitable for patients with arthritis confined to a single compartment of the knee and can help preserve more of the knee's natural movement.

Total Knee Replacement

Total knee replacement is performed when arthritis or joint damage affects multiple compartments of the knee. During the procedure, the damaged surfaces of the thigh bone, shin bone, and, when necessary, the kneecap are removed and replaced with artificial components. This is the most commonly performed type of knee replacement surgery for advanced knee arthritis.

Revision Knee Replacement

Revision knee replacement is performed when a previous knee replacement no longer functions as intended. This may occur due to implant wear, loosening, infection, instability, or other complications. The affected components are removed and replaced with new implants to restore knee function and stability.

Robotic Knee Replacement

Robotic-assisted knee replacement uses advanced technology to support highly precise surgical planning and implant positioning. Detailed information collected before and during surgery is used to create a personalised surgical plan tailored to the patient's anatomy. During the procedure, a robotic arm assists the surgeon in performing precise bone preparation and implant placement.

Dr Wang Lushun is a trainer in robotic-assisted knee replacement surgery and teaches surgeons across the region in the use of this technology.

When Should You Consider Knee Replacement Surgery?

Knee replacement surgery is typically considered when knee pain and joint damage begin to significantly affect your daily life and conservative treatments no longer provide adequate relief. Before recommending surgery, your knee specialist will usually explore non-surgical options such as physiotherapy, medications, weight management, lifestyle modifications, and joint injections.

You may be a candidate for knee replacement surgery if you:

  • Experience persistent knee pain that continues despite non-surgical treatment
  • Have pain that affects sleep or occurs even while resting
  • Have difficulty walking, climbing stairs, or performing everyday activities
  • Experience significant knee stiffness that limits movement and flexibility
  • Have recurrent swelling or inflammation of the knee joint
  • Experience knee instability or a feeling that the knee may give way
  • Develop progressive bow-legged or knock-kneed deformity
  • Have advanced osteoarthritis or other forms of severe knee arthritis
  • Show evidence of substantial joint damage on X-rays or other imaging studies
  • Experience a reduced quality of life due to ongoing knee symptoms

Find Out Whether Knee Replacement Is Right for You

Receive a personalised assessment from Dr Wang and explore the treatments available for your condition.

Book an appointment

Are There Alternatives to Knee Replacement Surgery?

Knee replacement surgery is generally considered when non-surgical treatments are no longer able to provide adequate symptom relief. Depending on the severity of your condition, your knee specialist may recommend conservative treatment options before considering surgery.

These may include:

  • Physiotherapy to improve strength, flexibility, and joint function
  • Activity modification to reduce stress on the knee joint
  • Weight management to decrease pressure on the knee
  • Pain-relieving and anti-inflammatory medications
  • Knee braces or supportive devices
  • Corticosteroid injections to reduce inflammation and pain
  • Viscosupplementation injections in selected patients

While these treatments may help manage symptoms, they do not reverse advanced joint damage. If knee pain continues to affect your mobility, independence, and quality of life despite these measures, knee replacement surgery may provide a more durable solution.

Dr Wang will discuss the benefits and limitations of each treatment option and recommend an individualised treatment plan based on your condition and goals.

How Do I Prepare for Knee Replacement Surgery?

Proper preparation before knee replacement surgery helps reduce the risk of complications and supports a smoother recovery. Before the procedure, Dr Wang will perform a comprehensive assessment to evaluate your overall health, the severity of your knee condition, and your suitability for surgery.

Medical Evaluation and Diagnostic Tests

A detailed pre-operative assessment is carried out to plan your surgery and identify any factors that may affect recovery. This may include:

  • A physical examination of the knee
  • Review of your medical history and current symptoms
  • Imaging studies such as X-rays or MRI scans to evaluate the extent of joint damage
  • Blood tests and other pre-operative investigations, when required

These investigations help your knee specialist determine the most appropriate surgical approach and implant selection.

Preparing for Surgery and Recovery

Inform your doctor about any medications, supplements, or herbal products you are taking. Certain medications may need to be adjusted before surgery to reduce the risk of complications.

You will also receive instructions regarding fasting, medication use, and hospital admission procedures. To support a smoother recovery, it is advisable to:

  • Arrange for assistance at home during the initial recovery period
  • Remove tripping hazards such as loose rugs or electrical cords
  • Keep frequently used items within easy reach
  • Have any recommended walking aids or equipment available before surgery

What to Expect During Knee Replacement Surgery

Knee replacement surgery is typically performed under general anaesthesia and usually takes one to two hours.

During the procedure, an incision is made over the knee to access the damaged joint surfaces. Worn cartilage and damaged bone are removed and replaced with artificial components designed to restore knee function, alignment, and stability.

Depending on the extent of joint damage, either part of the knee (partial knee replacement) or the entire joint (total knee replacement) may be replaced.

After the implants are positioned and the knee is assessed for stability and movement, the incision is closed and you will be monitored as you recover from anaesthesia.

How Long Does Recovery Take After Knee Replacement Surgery?

Recovery after knee replacement surgery varies from person to person, depending on factors such as overall health, age, activity level, and the type of procedure performed. Dr Wang follows enhanced recovery protocols designed to support early mobilisation and a faster return to daily activities where appropriate.

Most patients are able to stand and bear weight on the operated leg shortly after surgery unless otherwise advised.

First Few Days After Surgery

Patients typically remain in hospital for one to two days following surgery. During this time, the medical team will monitor recovery, manage pain, and help patients begin walking with the support of physiotherapists and walking aids if required.

Weeks 1 to 2

The focus during the first two weeks is on wound healing, pain control, and gentle exercises to restore knee movement. Patients are encouraged to gradually increase their walking distance and participate in physiotherapy to support recovery.

Weeks 3 to 6

Most patients experience improvements in mobility and confidence with walking. Ongoing physiotherapy and home exercises help improve knee strength and range of motion. Depending on their progress, some patients may reduce their reliance on walking aids and begin returning to more routine daily activities.

Months 2 to 3

Pain and swelling continue to improve, and knee strength and function gradually increase. Many patients may be able to resume driving, return to work, and participate in low-impact activities after discussion with their surgeon. Continued adherence to rehabilitation exercises remains important during this stage.

Months 6 to 12

Recovery continues over several months as strength, flexibility, and overall function improve. Most patients experience significant improvements in mobility and quality of life during this period. Recovery outcomes are often influenced by factors such as overall health, participation in physiotherapy, and adherence to post-operative instructions.

Take the Next Step Towards Improved Mobility and Quality of Life

Speak with Dr Wang about the most appropriate treatment plan for your knee condition.

Book an appointment

What Are the Benefits and Risks of Knee Replacement Surgery?

Like any surgical procedure, knee replacement surgery has both potential benefits and risks. Your knee specialist will discuss these with you in detail and help you make an informed decision based on your condition, symptoms, and treatment goals.

Benefits of Knee Replacement Surgery

For suitable candidates, knee replacement surgery may provide several benefits, including:

  • Significant reduction in knee pain
  • Improved mobility and joint function
  • Greater ease in performing everyday activities such as walking and climbing stairs
  • Improved knee stability
  • Better quality of life and independence
  • Increased participation in low-impact recreational and fitness activities
  • Reduced reliance on pain medications

Many patients experience meaningful improvements in pain, mobility, and overall quality of life following recovery from knee replacement surgery.

Risks and Potential Complications

Although knee replacement surgery is generally safe and effective, complications can occur. Potential risks include:

  • Infection
  • Blood clots
  • Bleeding
  • Persistent pain or stiffness
  • Nerve or blood vessel injury
  • Implant loosening or wear over time
  • Joint instability
  • Fractures around the implant
  • The need for revision surgery in the future

The risk of complications varies between individuals and may be influenced by factors such as age, overall health, and existing medical conditions. Dr Wang will carefully assess your suitability for surgery and discuss measures that will minimise these risks before and after the procedure.

Comprehensive Knee Replacement Care with Dr Wang Lushun

Living with ongoing knee pain can make everyday activities increasingly difficult, affecting your mobility, independence, and overall quality of life. If non-surgical treatments are no longer providing sufficient relief, it may be time to explore whether knee replacement surgery is an appropriate option for you.

At Arete Orthopaedic Centre, patients receive comprehensive assessment and personalised treatment for a wide range of knee conditions. As a senior consultant orthopaedic surgeon with over 20 years of experience and a trainer in robotic-assisted knee replacement surgery, Dr Wang Lushun will carefully evaluate your symptoms, lifestyle needs, and treatment goals to determine the most appropriate management plan, whether through conservative treatment or knee replacement surgery.

If knee pain is affecting your mobility, independence, or quality of life, schedule a consultation with Dr Wang to find out whether knee replacement surgery may be suitable for you.

FAQs on Knee Replacement Surgery

How much does a knee replacement surgery cost?

The cost of knee replacement in Singapore is determined by several factors, such as the type of knee replacement, hospitalisation costs, type of implant used, doctor’s fees, insurance coverage, and more. For more personalised information on cost, please contact us today.

How long does a knee replacement last?

Modern knee replacements are designed to be durable and long-lasting. Studies have shown that many knee replacements continue to function well for 20 years or longer, with more than 80% still performing satisfactorily after 25 years. Implant longevity depends on factors such as age, activity level, body weight, overall health, and the type of knee replacement performed.

Is robotic-assisted knee replacement suitable for everyone?

Robotic-assisted knee replacement may be suitable for many patients undergoing knee replacement surgery, although suitability depends on individual factors such as the nature of the knee condition and surgical requirements. During your consultation, Dr Wang will assess whether robotic-assisted surgery is appropriate for your situation.

What activities should I avoid after knee replacement surgery?

Following surgery, patients are generally advised to avoid activities that carry a high risk of falls or excessive impact on the knee joint. These may include running, jumping, contact sports, and heavy lifting. Dr Wang will advise you on when it is safe to resume specific activities based on your recovery progress.

What activities can I do after recovering from a knee replacement?

Most patients can return to a wide range of low-impact activities after recovery. Walking, swimming, cycling, golf, and doubles tennis are commonly recommended. Swimming is particularly beneficial once the wound has healed fully. Low-impact activities are generally preferred over high-impact sports to help preserve the longevity of the implant.

Can I have a knee replacement if I am allergic to metal?

Yes, but do inform Dr Wang before the surgery. There are special knee replacements that are made of metal substitutes (ceramic-coated) for patients who are allergic to metal.

Our Knee Replacement Surgeon in Singapore

Dr Wang Lushun
Senior Consultant Orthopaedic Surgeon

Qualifications & Accreditations

  • Bachelor of Medicine & Bachelor of Surgery (MBBS) (Singapore)
  • Member of the Royal College of Surgeons (MRCS) (Edinburgh, UK)
  • Master of Medicine in Orthopaedic Surgery (MMed) (Singapore)
  • Fellow of the Royal College of Surgeons in Orthopaedics & Traumatology (FRCS) (Edinburgh, UK)

Dr Wang Lushun is a Senior Consultant Orthopaedic Surgeon with over 20 years of experience in knee replacement surgery and complex knee reconstruction. He has extensive expertise in partial, total, revision, and robotic-assisted knee replacement procedures, with a focus on personalised surgical planning, implant alignment, and enhanced recovery. As a trainer in robotic-assisted knee replacement surgery, Dr Wang also instructs surgeons across the region in the use of advanced technology for knee joint replacement.

Dr Wang Lushuns Bio
Trusted
Leadership on Orthopaedic Advisory Boards
Skilful
Double Fellowships at Centres of Excellence
Experienced
Senior Consultant with Over 20 Years of Experience
Book An Appointment
Contact Us
NEED ADVICE ON YOUR CONDITION?
Do you have an enquiry about your sports injury or body joint condition? Please leave us a message and we will be in touch with you shortly.
Arete Orthopaedic Centre

Mount Elizabeth Medical Centre
3 Mount Elizabeth,#13-14, Singapore 228510

Mount Alvernia Hospital
820 Thomson Road, #05-51, Medical Centre D, Singapore 574623

Whatsapp