Overview
What is Knee Pain?
Knee pain is pain, stiffness, swelling or reduced function affecting the knee — one of the most common musculoskeletal complaints, and one that affects everyone from young athletes to older adults. It is a symptom rather than a diagnosis, and it can arise from the joint surfaces, cartilage, ligaments, tendons, menisci or surrounding muscles, or be driven by how the whole leg is loading and moving.
The knee is the largest and one of the most complex joints in the body. It is essentially a hinge that must remain stable while bearing large loads during walking, squatting, climbing stairs, running and jumping. It is made up of two main joints — the tibiofemoral joint (between the thigh bone and shin bone) and the patellofemoral joint (between the kneecap and thigh bone) — supported by strong ligaments, two shock-absorbing menisci, and the powerful muscles that cross it.
A key point that sets knee assessment apart is the kinetic chain: the knee sits between the hip and the foot, so it is strongly influenced by both. Weakness in the hip and gluteal muscles, poor foot mechanics such as overpronation (flat feet), or altered gait can all place abnormal load on the knee and cause pain — even when the knee itself is structurally sound. This is why effective assessment looks beyond the knee to the whole lower limb, rather than at the painful joint alone.
In Singapore, knee pain is common across an increasingly active population — from recreational runners and gym-goers to a large number of older adults affected by knee osteoarthritis, a leading cause of pain and reduced mobility with age
Clinically, knee pain is described by duration:
- Acute knee pain: Less than 6 weeks
- Subacute knee pain: 6 to 12 weeks
- Chronic knee pain: More than 3 months
This classification, together with the pattern of symptoms and examination findings, helps determine the most appropriate management plan.
Know your pain
Types of Knee Pain & Related Conditions
Knee pain presents in many forms depending on the structure involved and the demands placed on the joint. Identifying the specific condition is what allows to address the source rather than the symptom alone.
Patellofemoral Pain Syndrome (Runner's Knee)
One of the most common causes of knee pain, especially in active people. It causes pain around or behind the kneecap, typically worse with stairs, squatting or sitting for long periods, and is often related to how the kneecap tracks and to muscle imbalance.
Patellar Tendinopathy (Jumper's Knee)
Irritation of the patellar tendon just below the kneecap, common in jumping and running sports, causing pain at the front of the knee with activity.
Iliotibial (IT) Band Syndrome
Irritation of the IT band on the outer side of the knee, a frequent cause of lateral knee pain in runners and cyclists.
Knee Osteoarthritis
Age-related wear of the joint cartilage, causing pain, stiffness, swelling and reduced movement — the most common cause of chronic knee pain in older adults.
Meniscus Injury
A tear of one of the shock-absorbing menisci, from a twist or with age-related degeneration, which can cause pain, swelling, catching or a locked knee.
Osgood-Schlatter Disease
A growth-related cause of knee pain in active adolescents, felt just below the kneecap.
Bursitis
Inflammation of one of the knee's bursae (such as prepatellar or pes anserine bursitis), causing localised swelling and pain.
Ligament Injuries
Sprains or tears of the cruciate (ACL, PCL) or collateral (MCL, LCL) ligaments, usually from sport or trauma, often causing instability or a feeling of the knee "giving way."
The science
How Knee Structures Affect Knee Pain?
The knee is a coordinated system of bones, cartilage, ligaments, menisci and tendons — and it works as part of the whole leg. Because several structures can produce similar symptoms, pinpointing the source is central to effective care.
Tibiofemoral Joint & Cartilage
The main weight-bearing joint. Wear of its articular cartilage leads to osteoarthritis, the most common source of chronic knee pain with age.
Patellofemoral Joint & Patellar Tracking
The kneecap must glide smoothly in its groove as the knee bends. When it doesn’t track well — often due to muscle imbalance (including a weak vastus medialis, or VMO) or a larger Q-angle — the result is patellofemoral pain.
Menisci
The two crescent-shaped menisci cushion and stabilise the joint. Tears can cause pain, swelling, catching or locking.
Ligaments
The cruciate (ACL, PCL) and collateral (MCL, LCL) ligaments provide stability. Sprains or tears cause pain and instability.
Tendons & Bursae
The quadriceps and patellar tendons, and the surrounding bursae, are common sources of front-of-knee pain, particularly with overuse.
The Kinetic Chain (Hip & Foot)
Crucially, the knee is influenced by the joints above and below it. Weak hip and gluteal muscles allow the knee to collapse inward, and poor foot mechanics alter loading — both common, manageable contributors to knee pain that lie outside the knee itself.
Why it happens
Common Causes of Knee Pain
Knee pain usually results from a combination of factors rather than a single cause.
1. Overuse & repetitive loading. Running, jumping and repetitive activity commonly cause patellofemoral pain, patellar tendinopathy and IT band syndrome.
2. Injury & trauma. Twists, awkward landings, direct blows and sporting impacts can injure the menisci and ligaments.
3. Degenerative changes. Ageing wears the joint cartilage, leading to knee osteoarthritis.
4. Biomechanics & alignment. Muscle imbalance, poor patellar tracking, a larger Q-angle (more common in women), weak hip and gluteal muscles, and foot problems such as overpronation all place abnormal load on the knee.
5. Load & body weight. Excess body weight significantly increases the load through the knee and is a major, modifiable factor in knee pain and osteoarthritis.
6. Contributing factors: repetitive running or jumping · rapid increases in training load · previous knee injury · muscle weakness and imbalance (quads, glutes) · poor foot mechanics · increasing age · excess body weight · reduced flexibility.
Recognising it
Signs & Symptoms of Knee Pain
Symptoms vary with the underlying condition, which is why the pattern and location of pain are important clues.
- Pain around or behind the kneecap, worse with stairs, squatting or prolonged sitting (typical of patellofemoral pain).
- Pain just below the kneecap with jumping or running (patellar tendinopathy).
- Pain on the outer side of the knee with running (IT band syndrome).
- Aching, stiffness and swelling that worsen with activity and age (osteoarthritis).
- Swelling, catching or locking of the knee (meniscus injury).
- Instability or a feeling of the knee “giving way” (ligament injury).
- Clicking, grinding or reduced range of motion.
⚠ Warning signs — when to seek urgent care
- A knee that is locked and cannot be straightened
- Significant instability or giving way after an injury
- An inability to bear weight or a suspected fracture
- A hot, red, swollen and very painful knee, especially with fever (possible infection or gout)
- Calf swelling, redness and pain (possible blood clot / DVT)
Getting help
When Should You See a Chiropractor for Knee Pain?
Many knee problems respond well to conservative care that addresses both the knee and the wider kinetic chain. Consider an assessment if you have:
- Knee pain lasting more than a few days or that keeps returning.
- Pain with running, jumping, stairs or squatting.
- Front-of-knee or outer-knee pain related to activity.
- Stiffness and aching associated with wear-and-tear changes.
- Knee pain you suspect is linked to your hip, foot or gait.
Any red-flag symptoms above require urgent medical care instead. Part of our role is recognising knee problems that need imaging, specialist or surgical assessment — such as significant ligament or meniscus tears, or advanced osteoarthritis — and referring promptly.
Your first step
How Do We Diagnose Knee Pain?
Because several structures — and areas beyond the knee — can produce similar symptoms, a careful assessment identifies the source and guides appropriate care.
History & symptom review
We discuss how and when the pain started, aggravating and easing activities, any injury or twist, swelling, locking or instability, your training and work demands, and relevant medical history.
Physical examination
We assess the knee’s range of motion, joint stability, swelling, muscle strength and areas of tenderness, and evaluate patellar tracking.
Special orthopaedic tests
Where appropriate we use targeted tests — such as McMurray’s test for the meniscus, the Lachman and anterior drawer tests for the ACL, patellofemoral assessment, and valgus/varus stress tests for the collateral ligaments.
Biomechanical & kinetic-chain assessment
We assess hip and gluteal strength, foot mechanics and gait, since problems here frequently drive knee pain — a step that distinguishes a thorough evaluation.
Imaging & referral when necessary
Many knee conditions are diagnosed clinically. If a significant ligament or meniscus tear, a fracture, or advanced osteoarthritis needing specialist care is suspected, we refer for imaging (X-ray, MRI) or specialist review.
How we help
Knee Pain Care Options at Agape Chiropractic Clinic
Every knee problem is different, so we use your assessment findings to build a personalised, conservative care plan that manage both the knee and its contributing factors. Depending on your diagnosis, your plan may include one or more of the following.
Chiropractic adjustments & mobilisation (extremity care)
Gentle techniques to restore movement to a restricted knee, and — importantly — to the hip, ankle and foot joints that influence it, supporting better lower-limb mechanics.
Soft tissue therapy
Myofascial release, trigger point therapy and instrument-assisted techniques (IASTM) for the quadriceps, IT band, hamstrings and calf to reduce tension and improve movement.
Shockwave therapy
Focused acoustic-wave therapy that may help stubborn tendon-related knee pain, such as patellar tendinopathy, as part of a broader plan.
Exercise rehabilitation
Targeted strengthening of the quadriceps (including the VMO), hip and gluteal muscles, together with mobility and control work, to correct the imbalances that drive many knee problems and to manage osteoarthritis — where strengthening and load management, not rest, are first-line care.
Foot mechanics & load management
Advice on footwear, foot support where appropriate, activity modification and gradual load progression to reduce strain on the knee.
Co-management & referral
For ligament reconstruction candidates, surgical meniscus tears or advanced osteoarthritis, we work alongside and refer to the appropriate specialist.
Your journey
What to Expect During Your Knee Care?
Initial consultation
A detailed discussion of your symptoms, activities, injury history and goals.
Comprehensive assessment
A thorough examination of the knee, plus the hip, foot and gait, using special tests to identify the condition and its contributing factors.
Personalised care plan
We explain our findings, discuss your diagnosis, and recommend a plan that may combine hands-on care, shockwave therapy, rehabilitation and load advice.
Monitoring your progress
We review your pain, movement, strength and function over time and progress your rehabilitation accordingly.
Timelines
Recovery & Prognosis
Recovery depends on the specific condition. Overuse conditions such as patellofemoral pain, patellar tendinopathy and IT band syndrome often improve over weeks to a few months with appropriate loading and rehabilitation. Knee osteoarthritis is a long-term condition that is managed rather than cured — but strengthening, load management and weight control can meaningfully reduce pain and improve function. Significant ligament and meniscus tears may require specialist or surgical management.
Factors that influence recovery: the specific condition and its severity · how long you’ve had symptoms · muscle strength and balance (quads, hips, glutes) · foot mechanics and body weight · your activity and training demands · your age and general health · and how consistently you follow your rehabilitation programme.
Because so much knee pain is driven by loading and muscle control, restoring strength through the quadriceps, hips and glutes — and managing overall load — is central to lasting recovery and to reducing recurrence, which is why exercise rehabilitation forms the core of most plans.
Self-care
How to Manage Knee Pain at Home?
Many knee problems can be supported with simple self-care. Seek professional advice if pain persists, worsens or limits daily life — and urgent care for any red-flag symptom.
- Modify aggravating activities and adjust training load rather than stopping activity altogether.
- Keep moving within comfort. For osteoarthritis in particular, gentle activity and strengthening help more than rest.
- Heat or cold therapy. Cold may ease an acutely painful or swollen knee; heat can relax tight muscles and stiffness.
- Do your prescribed exercises — quadriceps, hip and gluteal strengthening are key.
- Manage body weight, which reduces load through the knee.
- Check your footwear and support your foot mechanics where advised.
- Know when to seek care if the knee locks, gives way, is very swollen or hot, or you can’t bear weight.
Staying well
How to Prevent Knee Pain From Returning?
Not every knee problem can be prevented, but sensible habits reduce the risk.
- Strengthen your quads, hips and glutes to support and control the knee.
- Increase training load gradually and avoid sudden spikes in running or jumping.
- Warm up and maintain flexibility in the quads, hamstrings, IT band and calves.
- Support good foot mechanics with appropriate footwear.
- Maintain a healthy body weight to reduce joint load.
- Address minor knee niggles early rather than pushing through them.
Tailored care
Knee Pain Across Different Age Groups & Lifestyles
Runners & jumping athletes
Prone to patellofemoral pain, patellar tendinopathy and IT band syndrome from repetitive loading.
Active young adults
More likely to sustain ligament (ACL/MCL) and meniscus injuries from twisting and contact.
Adolescents
Growth-related conditions such as Osgood-Schlatter disease cause activity-related pain below the kneecap.
Older adults
Knee osteoarthritis becomes the leading cause of pain, stiffness and reduced mobility.
People carrying extra weight.
Face significantly higher knee load, increasing the risk of pain and osteoarthritis.
About us
Why Choose Agape Chiropractic Clinic?
Our Chiropractic Clinic in Orchard focuses on getting to the root of your pain, not just easing symptoms for a day. We combine careful diagnosis with a range of techniques so your care fits your condition, and we’re upfront about what chiropractic can and can’t help — including when to refer you elsewhere.
Dr. Luke Ho
Dr. Luke Ho obtained his Chiropractic degree from Palmer College of Chiropractic, Davenport, Iowa, USA in 2005. Prior to graduating, he worked in the campus clinic for 18 months as a clinical extern, treating students, faculty, and outpatients. In 2001 Dr. Ho obtained a BSc. in Sports Medicine from the University of Evansville, Indiana, USA. During his 3rd and 4th years there, he interned at the St. Mary’s Hospital Cardiac Rehabilitation Department, the St. Mary’s Sports and Fitness Center, and the University of Evansville Rehabilitation Center where he worked closely with the university tennis, volleyball, basketball and baseball teams.
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