Patellofemoral Pain Syndrome (Runner’s Knee) Treatment in Singapore: A Complete, Evidence-Based Care Pathway

Front Knee Pain — Why It Hurts With Stairs, Running, or Sitting

Patellofemoral Pain Syndrome (PFPS), often called “runner’s knee,” involves pain around or behind the kneecap (patella).

It commonly presents as:

  • Pain when going up or down stairs
  • Discomfort during squatting or running
  • Pain after prolonged sitting (“movie-goer’s knee”)
  • Clicking or grinding sensations

Unlike arthritis or ligament injuries, PFPS is usually related to movement patterns and load distribution, which is why it often persists without targeted rehabilitation.


What Evidence-Based Guidelines Recommend

Clinical guidelines and sports medicine consensus recommend a structured, conservative-first approach:

  1. Clinical diagnosis (imaging when needed)
  2. Exercise-based rehabilitation as the primary treatment
  3. Load management and movement correction
  4. Medication for symptom control (when needed)
  5. Adjunct therapies in selected cases
  6. Surgical referral only in rare or resistant cases

The Pain Relief Clinic’s approach aligns with this pathway.


1. Diagnosis First: Identifying Contributing Factors

Patellofemoral pain is often influenced by:

  • Muscle imbalance (hip, quadriceps)
  • Poor movement mechanics
  • Overuse or sudden increase in activity

Imaging may be considered to:

  • Exclude structural issues (e.g., cartilage damage, meniscus injury)
  • Confirm diagnosis when symptoms persist

At The Pain Relief Clinic:

  • Clinical assessment is performed
  • Imaging such as X-ray, ultrasound, or MRI may be arranged within 1 working day when appropriate

2. Physiotherapy & Rehabilitation: Core Treatment

Exercise therapy is considered the most effective treatment for PFPS.

Active Rehabilitation

Programmes may include:

  • Quadriceps strengthening
  • Hip and glute strengthening
  • Movement retraining (squat, running mechanics)
  • Balance and stability work
  • Gradual return to activity

These are tailored based on:

  • Functional goals
  • Activity level
  • Movement assessment findings

Passive Non-Invasive Support

To support recovery:

  • Shockwave therapy
  • Radiofrequency-based deep tissue therapy
  • Manual therapy where appropriate

These may help reduce discomfort and improve tolerance to exercise.

Integrated Physiotherapy (Key USP)

  • Physiotherapists are MOH AHPC-licensed
  • Rehabilitation is closely coordinated with the doctor
  • Programmes are adjusted based on clinical findings and progress

3. Medication: Supporting Symptom Control

Medication may be used to:

  • Reduce pain
  • Allow continuation of rehabilitation

First-Line Options

  • Paracetamol
  • Topical NSAIDs
  • Oral NSAIDs

Second-Line / Subsequent Options

  • COX-2 inhibitors
  • Short-term oral opioids (used cautiously)

Medication is:

  • Typically short-term
  • Used alongside physiotherapy
  • Not a primary long-term solution

4. Injection Options (Selected Cases)

Injection therapy is less commonly used for PFPS but may be considered in specific situations.

Local Anaesthetic Injections

  • Temporary relief
  • May assist in diagnosis

Corticosteroid Injections

  • Used selectively if inflammation is present

PRP (Platelet-Rich Plasma)

  • Considered in selected cases
  • Evidence is evolving

Pulsed Radiofrequency

  • May be used for chronic pain modulation

Viscosupplementation

  • May be considered if there is associated cartilage involvement

Injection therapy is generally:
👉 Considered only when symptoms persist despite structured rehabilitation


5. Integrated, Team-Based Care

PFPS management benefits from coordinated care.

At The Pain Relief Clinic:

  • Care is led by Dr. Terence Tan, a licensed medical doctor (SMC)
  • With over 20 years of clinical experience
  • Working closely with in-house AHPC-licensed physiotherapists

Treatment plans are adjusted based on:

  • Movement assessment
  • Functional progress
  • Response to therapy

6. Load Management & Movement Correction

PFPS is strongly influenced by:

  • Overuse or training errors
  • Poor biomechanics
  • Muscle imbalance

Management may include:

  • Activity modification
  • Running technique adjustments
  • Strength correction
  • Gradual progression of load

These are critical to prevent recurrence.


7. When Is Surgery Considered?

Surgery is rarely required for PFPS but may be considered when:

  • Structural abnormalities are present
  • Symptoms persist despite prolonged structured care
  • Functional limitation remains significant

In such cases, The Pain Relief Clinic:

  • Provides assessment and imaging
  • Refers patients to orthopaedic specialist partners
  • Coordinates care before and after intervention

Common Causes of Patellofemoral Pain

  1. Overuse or sudden increase in activity
  2. Weak quadriceps muscles
  3. Weak hip and glute muscles
  4. Poor movement mechanics
  5. Running-related strain
  6. Prolonged sitting
  7. Muscle imbalance
  8. Improper footwear
  9. Flat feet or alignment issues
  10. Combined biomechanical factors

When Should You Seek a Structured Approach?

You may benefit from coordinated care if:

  • Knee pain persists with activity
  • Stairs or squatting are painful
  • Symptoms recur frequently
  • Rest alone does not resolve symptoms
  • You are unsure of the cause

Final Takeaway

Patellofemoral pain syndrome is best managed through a structured pathway:

  1. Accurate diagnosis
  2. Targeted physiotherapy and movement correction
  3. Load management and activity modification
  4. Medication for symptom control
  5. Injection therapy in selected cases
  6. Surgical referral when appropriate

The Pain Relief Clinic provides these components in an integrated, coordinated, and evidence-aligned manner, supporting recovery and preventing recurrence.


FAQ

Q1: Is patellofemoral pain the same as arthritis?
No, PFPS is usually related to movement patterns rather than joint degeneration.

Q2: Can physiotherapy cure runner’s knee?
Physiotherapy is the main treatment and often leads to significant improvement.

Q3: Do I need an MRI?
MRI may be useful if symptoms persist or diagnosis is unclear.

Q4: Can PFPS come back?
Yes, especially if underlying movement issues are not addressed.