Experiencing persistent knee symptoms that are affecting your daily activities?
Early assessment may help identify the stage of the condition and the management options most suitable for your situation.
Knee Osteoarthritis Treatment in Singapore
What is Knee Osteoarthritis?
Knee osteoarthritis (OA) is a degenerative joint condition in which the cartilage that cushions the knee joint gradually breaks down over time. As the cartilage wears away, the bones within the joint may begin to rub against each other, leading to pain, swelling, stiffness, and reduced mobility.
Knee osteoarthritis is one of the more commonly seen orthopaedic conditions in Singapore, particularly in adults aged 50 and above. While it is a progressive condition, the rate of progression and the severity of symptoms vary considerably between individuals. Management typically focuses on reducing pain, maintaining joint function, and slowing disease progression where possible.
- Nature: A chronic, degenerative condition — not a single injury event. Symptoms typically develop and worsen gradually over time.
- Affected structures: Primarily the articular cartilage, with secondary changes in the underlying bone, joint lining, and surrounding tissues.
- Diagnosis: Clinical examination combined with X-ray and, where indicated, MRI imaging.
- Management: Ranges from lifestyle modification and physiotherapy to injections and, in appropriate cases, surgical intervention including partial or total knee replacement.
Symptoms & Signs
Symptoms of knee osteoarthritis typically develop gradually and may worsen over time. If you are experiencing one or more of the following on a persistent or recurring basis, a specialist assessment may be beneficial.
Knee pain during or after activity
Pain is often felt during weight-bearing activities such as walking, climbing stairs, or rising from a seated position. It may ease with rest initially but can become more persistent as the condition progresses.
Morning stiffness or stiffness after inactivity
The knee may feel stiff and difficult to move after periods of rest or upon waking, typically easing after a short period of movement. Prolonged stiffness that does not improve with activity may suggest more advanced joint changes.
Swelling around the knee joint
Inflammation associated with cartilage breakdown may cause visible or palpable swelling around the knee, which may worsen following activity or periods of prolonged standing.
Grinding, creaking, or clicking sensations
A grinding or crunching sensation (crepitus) when moving the knee may indicate that the cartilage surfaces are no longer smooth. This is caused by bone-on-bone contact or roughened cartilage within the joint.
Reduced range of motion
Difficulty fully bending or straightening the knee is common in osteoarthritis. Loss of range of motion may limit daily activities such as squatting, kneeling, or climbing stairs.
Knee instability or weakness
The knee may feel weak or occasionally give way during activity. This may be related to muscle weakness, joint changes, or both, and can increase the risk of falls in older adults.
Causes & Risk Factors
Knee osteoarthritis develops as a result of a combination of factors that contribute to the gradual breakdown of the knee joint over time. The following are among the more commonly associated risk factors.
| Ageing | The risk of knee osteoarthritis increases with age, particularly from the age of 50 onwards. Natural changes in joint flexibility and the reduced capacity for cartilage repair over time may contribute to progressive joint degeneration. |
| Previous knee injury or surgery | A history of knee injury — such as a ligament tear, meniscus injury, or fracture — may increase the risk of developing post-traumatic osteoarthritis in the affected joint, even when the original injury was adequately managed. |
| Excess body weight | Carrying excess weight places additional mechanical load on the knee joints during everyday activities. Over time, this increased load may accelerate cartilage wear and contribute to the onset or progression of osteoarthritis. |
| Repetitive joint loading and overuse | Occupations or activities involving prolonged kneeling, squatting, heavy lifting, or repetitive impact on the knee — such as long-distance running on hard surfaces — may increase cumulative stress on the joint over time. |
| Genetic predisposition | A family history of osteoarthritis may indicate a genetic predisposition to earlier or more pronounced cartilage breakdown. Inherited factors can influence joint structure, cartilage quality, and inflammatory responses within the joint. |
| Joint malalignment | Bow-legged (varus) or knock-kneed (valgus) alignment places uneven loading across the knee compartments, which may accelerate wear on the more heavily loaded side of the joint. This is a factor that may be addressed surgically in appropriate cases. |
Stages of Knee Osteoarthritis
Knee osteoarthritis is typically classified into stages based on the degree of cartilage loss and joint changes observed on imaging. Understanding the stage of the condition helps guide treatment planning. Staging is determined by a specialist following clinical assessment and imaging.
Early (Mild)
Minimal cartilage changes: Early-stage OA may involve minor cartilage wear with minimal joint space narrowing visible on X-ray. Symptoms may be mild or intermittent. Management typically focuses on lifestyle modifications, exercise, physiotherapy, and pain management.
Moderate
Moderate cartilage loss: More noticeable joint space narrowing and possible early bone spur formation. Symptoms are generally more consistent, particularly with activity. Management may include injections, physiotherapy, bracing, and in some cases, arthroscopy or osteotomy.
Advanced (Severe)
Significant joint space loss: Marked loss of cartilage with significant joint space narrowing, bone-on-bone contact, and possibly visible joint deformity. Symptoms are typically persistent and may significantly affect daily activities. Surgical options such as partial or total knee replacement may be considered at this stage.
Note on staging
Symptom severity does not always correlate directly with imaging findings. Some individuals with advanced imaging changes experience manageable symptoms, while others with early-stage findings may have significant pain. A specialist assessment considers both clinical presentation and imaging together
Our Diagnostic Process
Diagnosing knee osteoarthritis involves a combination of clinical assessment and imaging. The diagnostic process at Spire Hip & Knee Centre typically includes the following steps.
Medical history & symptom review
The specialist will take a detailed history of your symptoms — including the onset, pattern, and severity of pain and stiffness — as well as any previous knee injuries, relevant occupational history, and family history of joint conditions.
Physical Examination
The knee is assessed for swelling, tenderness, range of motion, stability, and alignment. Specific movements may be used to evaluate joint function and identify signs of cartilage loss or joint degeneration.
X-ray imaging
X-rays are the standard imaging tool for knee OA assessment, allowing the specialist to evaluate joint space narrowing, bone spur formation (osteophytes), and changes in bone structure. They provide a useful indication of OA severity and guide treatment decisions.
MRI scan
An MRI may be used to assess the extent of cartilage damage and evaluate associated soft tissue structures — including the menisci and ligaments — particularly where the diagnosis is unclear or where surgical planning is being considered.
Knee arthroscopy (where indicated)
In selected cases, arthroscopy — a minimally invasive procedure using a small camera — may be used to directly visualise the internal structures of the knee and assess the degree of cartilage damage. It may also serve as a therapeutic procedure at the same time.
Structured monitoring & follow-up
For patients with confirmed knee OA, regular follow-up appointments allow the specialist to monitor the progression of the condition over time and adjust the management plan as needed. This ongoing review is an important part of the care pathway at Spire.
Treatment Options for Knee Osteoarthritis
The management of knee osteoarthritis is guided by the stage of the condition, the severity of symptoms, and the individual patient’s health, activity level, and preferences. Non-surgical approaches are generally explored before surgical intervention is considered.
Non-Surgical Treatment Options
Non-surgical management may help reduce pain, improve joint function, and slow the progression of knee OA. Options may include:
- Activity modification: Adjusting activities that place high load on the knee — such as switching from high-impact to low-impact exercise — may help reduce symptoms while maintaining physical fitness.
- Physiotherapy: A structured physiotherapy programme focused on strengthening the muscles surrounding the knee, improving flexibility, and optimising joint mechanics may help manage symptoms and improve function.
- Weight management: Reducing excess body weight may help decrease the mechanical load on the knee joint and may slow the progression of cartilage wear over time.
- Supportive bracing: Knee braces may be used to offload the more affected compartment of the knee, helping to reduce pain during activity.
- Medications: Anti-inflammatory medications may be used to manage pain and swelling. Appropriate medication is determined by the treating clinician based on individual clinical assessment.
- Corticosteroid injections: Injections of corticosteroids into the knee joint may provide temporary relief from pain and inflammation. Their use is typically considered selectively due to potential side effects with repeated administration.
- Viscosupplementation: Injections of hyaluronic acid into the knee joint may provide additional cushioning and lubrication. This approach is most commonly considered in mild to moderate OA and its suitability varies by individual.
Surgical Treatment Options
Surgery is generally considered when non-surgical management no longer adequately controls symptoms, or when the degree of joint damage is such that surgical intervention is clinically appropriate. Procedures available at Spire Hip & Knee Centre include:
- Knee Arthroscopy: A minimally invasive procedure in which a small camera and surgical instruments are introduced into the knee through small incisions. Arthroscopy may be used to remove loose cartilage fragments, smooth damaged joint surfaces, or address associated conditions such as meniscus tears. It is generally considered for earlier-stage OA where specific mechanical problems can be addressed.
- Knee Osteotomy: Osteotomy involves cutting and realigning the bones of the knee to shift the body’s weight away from the more damaged compartment onto the healthier side of the joint. It is most commonly considered for younger, active patients with osteoarthritis affecting primarily one compartment of the knee, and in cases of joint malalignment (bow-legged or knock-kneed deformity). An osteotomy may help delay the need for joint replacement in appropriate candidates.
- Partial Knee Replacement (Unicompartmental): Where osteoarthritis is confined to one compartment of the knee, a partial knee replacement may be considered. Only the damaged compartment is resurfaced and replaced, while the healthy areas of the joint are preserved. This approach is generally less invasive than a total knee replacement and may allow a faster return to activity in suitable candidates.
- Total Knee Replacement: Total knee replacement is typically considered for advanced osteoarthritis affecting multiple compartments of the knee, where non-surgical management and lesser surgical procedures have not provided adequate relief. The damaged bone and cartilage surfaces of the knee joint are removed and replaced with implant components designed to restore joint function. At Spire Hip & Knee Centre, robotic-assisted total knee replacement using the ROSA system is available, which may assist the surgeon in achieving precise implant positioning based on the individual patient’s anatomy.
Is knee pain or stiffness affecting your daily activities?
Our Knee Osteoarthritis Specialist at Spire Hip & Knee Centre provides structured assessment and ongoing care for knee osteoarthritis — from early-stage management through to surgical options where appropriate.
Partnered Programs & Insurance Plans
Spire Hip & Knee Centre works with a range of insurance providers.
Certain procedures for knee osteoarthritis — including knee replacement surgery — may be claimable under Medisave, subject to individual eligibility and MOH guidelines. The clinic team can provide guidance on fee structures and assist with insurance claims prior to your appointment.
Rehabilitation & On-going Care
| Non-surgical rehabilitation | For patients managed non-surgically, physiotherapy is typically a key component of the long-term management plan. Programmes are generally focused on strengthening the quadriceps and surrounding muscles, improving flexibility, reducing pain during activity, and supporting weight management goals where relevant. The programme is reviewed and adjusted over time based on the patient’s progress and symptom pattern. |
| Post-surgical rehabilitation |
Following surgery — whether arthroscopy, osteotomy, partial or total knee replacement — a structured rehabilitation programme is essential. The programme typically begins shortly after surgery, with exercises progressing gradually as recovery advances. The timeline and goals of rehabilitation vary depending on the procedure performed and individual patient factors. |
| In-house physiotherapy at Spire | Spire Hip & Knee Centre provides in-house physiotherapy services with experienced therapists specialising in orthopaedic and post-operative rehabilitation. For OA patients, this means the treating specialist and physiotherapy team can coordinate the care plan within the same clinic, supporting consistent monitoring across all stages of management. |
| Structured follow-up | Regular follow-up appointments with the orthopaedic specialist allow for monitoring of the condition’s progression, review of the management plan, and timely adjustment of treatment where needed. For OA patients, this ongoing review is an integral part of the care pathway — not a one-off consultation. |
Reducing the Risk of Knee Osteoarthritis
While certain risk factors for knee osteoarthritis — such as age and genetics — cannot be modified, a number of lifestyle measures may help reduce the risk or slow the progression of the condition.
- Maintain a healthy weight: Excess body weight places additional load on the knee joints during everyday movement. Maintaining a healthy weight through balanced nutrition and regular physical activity may help reduce the mechanical stress on the knee cartilage over time.
- Engage in low-impact exercise regularly: Low-impact activities such as swimming, cycling, walking, and tai chi may help maintain joint mobility, strengthen the muscles supporting the knee, and support general cardiovascular health — without placing excessive stress on the joint. Avoiding prolonged periods of inactivity is also important, as joint stiffness may worsen with immobility.
- Strengthen the knee and surrounding muscles: Building strength in the quadriceps, hamstrings, and hip muscles helps improve the dynamic stability of the knee joint and may reduce the load transmitted to the joint cartilage during activity. A physiotherapist can advise on an appropriate strengthening programme.
- Support joint health through nutrition: A diet rich in anti-inflammatory foods — including omega-3 fatty acids, vegetables, and adequate protein — may help support joint health. Adequate calcium and vitamin D intake is also important for maintaining bone density, particularly in older adults.
- Wear appropriate footwear during physical activity: Supportive footwear that provides adequate cushioning and alignment during physical activity may help reduce the impact load transmitted to the knee joint. Orthopaedic insoles or specialised footwear may be recommended in some individuals.
- Regular check-ups for at-risk individuals: Individuals with risk factors for knee osteoarthritis — including a history of knee injury, excess weight, or a family history of the condition — may benefit from regular orthopaedic check-ups. Early detection of joint changes allows for earlier management, which may help slow progression and preserve knee function for longer.
Are your knee arthritis symptoms affecting your quality of life?
The orthopaedic specialists at Spire Hip & Knee Centre provide assessment, structured care planning, and ongoing monitoring for knee osteoarthritis — from initial consultation through to long-term management. Contact the clinic to enquire about an appointment.
Frequently Asked Questions
What are the early signs of knee osteoarthritis?
Early signs of knee osteoarthritis may include mild pain during or after activity, morning stiffness that eases with movement, a grinding or creaking sensation in the knee, and slight swelling after prolonged activity.
These symptoms are often intermittent in the early stages and may be mistaken for general “wear and tear.”
If you are experiencing these symptoms regularly, a specialist assessment can help determine whether they are related to osteoarthritis and what management may be appropriate at this stage.
Does knee osteoarthritis always lead to surgery?
No — not all patients with knee osteoarthritis require surgery. Many individuals manage their condition effectively with non-surgical approaches, including physiotherapy, activity modification, weight management, and appropriate medications or injections.
Surgery is generally considered when non-surgical management no longer adequately controls symptoms, or when the degree of joint damage is such that surgical intervention is clinically appropriate.
The most suitable management approach is determined on an individual basis following specialist assessment.
What is the difference between partial and total knee replacement?
A partial knee replacement (unicompartmental replacement) involves resurfacing and replacing only the damaged compartment of the knee, while preserving the healthy areas of the joint. It is generally considered for patients where osteoarthritis is confined to one compartment.
A total knee replacement involves replacing all three compartments of the knee joint and is typically considered for more advanced, multi-compartment osteoarthritis.
The appropriate procedure depends on the extent and distribution of joint damage, as well as individual patient factors — your specialist will advise on the most suitable option following assessment and imaging.
What is robotic-assisted knee replacement and does Spire offer it?
Robotic-assisted knee replacement uses a robotic system to assist the surgeon in planning and performing the procedure, allowing for precise implant positioning based on the individual patient’s anatomy.
Spire Hip & Knee Centre offers robotic-assisted knee replacement using the ROSA system. The potential advantages of robotic assistance include greater accuracy in implant placement and alignment, though individual outcomes depend on a range of clinical factors.
Your specialist can discuss whether robotic-assisted surgery may be appropriate for your situation.
How is knee osteoarthritis monitored over time?
Knee osteoarthritis is a progressive condition, and regular follow-up with a specialist is an important part of long-term management.
Follow-up appointments typically involve a review of symptoms, clinical assessment of the knee, and repeat imaging where appropriate to monitor changes in the joint over time.
The management plan may be adjusted based on how the condition is progressing and how well the current treatment approach is managing symptoms.
At Spire Hip & Knee Centre, structured monitoring is part of the ongoing care pathway for OA patients.
Is knee replacement surgery covered by Medisave in Singapore?
Knee replacement surgery performed in an approved hospital or specialist centre in Singapore may be claimable under Medisave, subject to individual eligibility criteria and MOH guidelines.
Coverage under integrated shield plans and private insurance policies varies depending on the specific plan.
Spire Hip & Knee Centre works with a range of insurance providers and can assist with insurance claims. Please speak with the clinic team to confirm the coverage applicable to your situation prior to proceeding.
At what age does knee osteoarthritis typically develop?
Knee osteoarthritis is most commonly diagnosed in adults aged 50 and above, though it can occur earlier — particularly in individuals with a history of knee injury, significant joint overuse, or a genetic predisposition to cartilage breakdown.
Post-traumatic osteoarthritis — developing after a previous knee injury such as an ACL tear or fracture — may present at a younger age. The rate at which symptoms develop and progress varies considerably between individuals and is influenced by a range of modifiable and non-modifiable factors.
Can exercise make knee osteoarthritis worse?
In most cases, appropriate exercise does not worsen knee osteoarthritis and may help manage symptoms by strengthening the muscles around the joint and maintaining mobility.
Low-impact activities such as swimming, cycling, and walking are generally well-tolerated. High-impact activities — such as running on hard surfaces or contact sports — may aggravate symptoms in some individuals, particularly in more advanced stages of the condition.
A physiotherapist can advise on the most suitable exercise approach for your specific situation and stage of OA.
Make an Enquiry
For urgent or same day appointment requests, please call our hotline.
Our Clinic Locations
Gleneagles Medical Centre
Dr. Ambrose Yung
over 20 years of experience in the field of orthopaedics
Spire Hip & Knee Centre
6 Napier Road #08-04 Singapore 258499
Monday – Friday: 9.00am – 6.00 pm
Saturday: 9.00am – 1.00pm
Sunday & PH: CLOSED
Royal Square
Dr. Ambrose Yung
over 20 years of experience in the field of orthopaedics
Spire Orthopaedic Physiotherapy & Rehab Centre
101 Irrawaddy Road, #18-03 Singapore 329565
Monday – Friday: 9.00am – 6.00 pm
Saturday: 9.00am – 1.00pm
Sunday & PH: CLOSED