Knee Osteoarthritis

Knee arthritis is a leading cause of knee pain and reduced mobility, especially in active adults and older populations. It most commonly involves osteoarthritis, where the cartilage in the knee joint gradually wears down.

Physiotherapy plays a key role in managing knee arthritis symptoms and improving function without surgery.

Anatomy and Biomechanics

The knee joint is formed by three bones:

Femur (thigh bone)
Tibia (shin bone)
Patella (kneecap)

Cartilage covers the ends of these bones, allowing smooth movement. The knee also contains the meniscus, which helps absorb shock.

In knee arthritis:

Cartilage becomes thinner or damaged
The joint space narrows
Inflammation develops
Movement becomes painful and stiff

Biomechanically, knee arthritis often leads to:

Reduced knee range of motion
Weakness in the quadriceps and glutes
Poor shock absorption
Increased joint loading during walking and stairs

Signs and Symptoms of Knee Arthritis

Common symptoms include:

Knee pain during walking, stairs, or squatting
Stiffness, especially after rest
Swelling in the knee
Grinding or clicking sensations
Reduced ability to fully bend or straighten the knee
Feeling of instability or weakness

How Physiotherapy Helps Knee Arthritis

Physiotherapy is strongly recommended as a first-line treatment for knee osteoarthritis.

1. Strengthening the Muscles Around the Knee

Targeted strengthening improves joint support and reduces pain.

Key muscle groups include:

Quadriceps
Hamstrings
Glute muscles

Stronger muscles help absorb load and reduce stress on the joint.

2. Improving Joint Mobility

Stiffness is a major contributor to pain. Physiotherapy includes:

Range of motion exercises
Manual therapy techniques
Stretching programs

These interventions help improve flexibility and ease of movement.

3. Movement Retraining

Physiotherapists assess how you:

Walk
Climb stairs
Squat

Correcting these patterns can significantly reduce knee stress.

4. Pain Management Strategies

Treatment may include:

Exercise therapy
Education on pacing and activity modification
Modalities to support symptom relief

5. Exercise and Lifestyle Guidance

Patients are guided on:

Safe exercises such as cycling, strength training, and walking
Weight management strategies (if applicable)
Long-term joint health

Physiotherapy vs Surgery for Knee Arthritis

Many patients can successfully manage knee arthritis with physiotherapy alone. For those requiring surgery, physiotherapy is essential both before and after knee replacement to optimize outcomes.

Long-Term Benefits of Physiotherapy

With consistent treatment, patients can:

Reduce knee pain
Improve strength and mobility
Delay progression of symptoms
Stay active and independent

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Knee Osteoarthritis