The patellofemoral joint is a complex structure essential for knee function. The patella serves as a lever, increasing the leverage of the quadriceps muscles. It glides in a groove (trochlear groove) on the femur when the knee bends and straightens.

Bony Structures:

• Patella (kneecap): Protects the front of the knee joint
• Femur (thigh bone): The trochlear groove holds the patella
• Tibia (shin bone): Lower attachment point

Soft Tissue Structures:

• Quadriceps tendon: Connects quadriceps to patella
• Patellar tendon: Connects patella to tibia
• Medial patellofemoral ligament (MPFL): Stabilizes the patella medially
• Lateral retinaculum: Supports the patella on the outer side
• Plica: Fold in the joint lining that can irritate

Supporting Muscles:

• Quadriceps (especially VMO): Controls patellar position
• Hamstrings: Provide dynamic knee stability
• Hip abductors (gluteus medius): Controls hip and knee alignment
• Calf muscles: Affect foot mechanics

During knee movement, the patella should track centrally in the trochlear groove. Several factors can disrupt this tracking:

• Weak quadriceps (especially VMO)
• Tight lateral structures
• Hip weakness causing knee valgus
• Foot overpronation
• Abnormal Q-angle

1. Overuse Type: Most common, related to repetitive stress
2. Malalignment Type: Anatomical factors affecting tracking
3. Traumatic Type: Following specific knee injury
4. Post-surgical Type: After knee surgery

• Peripatellar: Around the edges of the patella
• Retropatellar: Behind the patella
• Infrapatellar: Below the patella (often confused with tendinitis)

• Mild: Pain only with high-impact activities
• Moderate: Pain with daily activities like stairs
• Severe: Pain at rest or with minimal movement

1. Overuse: Repetitive activities causing patellar stress
2. Muscle Imbalance: Weak quadriceps, especially VMO
3. Patellar Maltracking: Abnormal patellar movement in groove
4. Tight Soft Tissues: IT band, hamstrings, calf tightness
5. Hip Dysfunction: Weak hip abductors causing knee collapse

1. Training Errors: Sudden increase in activity, intensity
2. Equipment: Worn shoes, inappropriate footwear
3. Surface: Running on hard surfaces
4. Anatomy: High Q-angle, shallow trochlear groove
5. Foot Mechanics: Overpronation

• Age (adolescents and young adults most common)
• Female gender (wider pelvis increases Q-angle)
• High-impact sports (running, basketball, volleyball)
• Previous knee injury
• Obesity
• Flat feet or high arches

• Dull, aching pain around or behind the patella
• Pain worse with:
  • Running, especially downhill
  • Climbing or descending stairs
  • Squatting or kneeling
  • Prolonged sitting (theater sign)
  • Standing for long periods
• Grinding or clicking sensation (crepitus)
• Mild swelling around the knee
• Feeling of knee instability

• Often bilateral but may be worse on one side
• Usually gradual onset
• May improve with initial activity (warm-up)
• May worsen after activity

• Knee stiffness
• Mild quadriceps weakness
• Reduced range of motion (in chronic cases)

Initial Consultation:

1. Detailed history of symptoms and activity
2. Previous injuries review
3. Training habits and footwear assessment
4. Occupational factors

Physical Examination:

• Observation of gait and movement patterns
• Palpation of patellar tenderness
• Assessment of quadriceps strength
• Evaluation of hip and ankle mobility
• Special tests for patellar tracking
• Check for swelling or effusion

Functional Assessment:

• Single-leg squat evaluation
• Step-down test
• Jump-landing mechanics

Runner's knee is primarily diagnosed through clinical examination. The hallmark is anterior knee pain with patellar compression while quadriceps are contracted.

X-ray:

• Rules out other conditions
• Assesses patellar position and alignment
• Checks for arthritis or fractures

MRI:

• Not routinely needed
• Evaluates soft tissues if diagnosis unclear
• Rules out meniscal or ligamentous injury

CT Scan:

• Rarely used
• Detailed assessment of patellar tracking

• Patellar tendinitis
• IT band syndrome
• Meniscus tear
• Osteoarthritis
• Bursitis
• Plica syndrome
• Sinding-Larsen-Johansson disease (in adolescents)

Activity Modification:

• Reduce high-impact activities
• Cross-training with low-impact exercises
• Gradual return to activity

Medications:

• NSAIDs for pain and inflammation
• Topical analgesics

Bracing:

• Patellar stabilizing braces
• Kinesio taping

Surgery is rarely needed and only when:

• Conservative treatment fails after 6-12 months
• Significant structural abnormality exists
• Cartilage damage is present

Our physiotherapy approach addresses multiple factors:

Manual Therapy:

• Patellar mobilization
• Soft tissue release
• Joint mobilization

Exercise Prescription:

• Quadriceps strengthening (especially VMO)
• Hip abductor strengthening
• Core stability exercises
• Stretching program

Modalities:

• Ultrasound therapy
• Electrical stimulation
• Ice therapy

Gait Analysis:

• Running form correction
• Footwear recommendations
• Orthotic assessment

Homeopathic remedies are selected based on totality of symptoms:

• Bryonia: Pain worse with slightest movement
• Rhus Tox: Pain improved with initial movement, worse after
• Arnica: Trauma-related, bruised feeling
• Ruta: Stiffness worse in cold, damp weather
• Symphytum: Bone and periosteum injuries

From an Ayurvedic perspective, runner's knee relates to Vata aggravation in the knee joint:

• Abhyanga: Therapeutic massage with medicated oils
• Janu Basti: Localized oil treatment for knee
• Herbal Medications: Shallaki, Guggulu for joint health
• Dietary Modifications: Vata-pacifying diet
• Panchakarma: Detoxification if chronic

• Acupuncture: Point selection around knee and related meridians
• IV Nutrition: Vitamin D, B-complex for tissue healing
• Pain Management: Advanced interventional techniques if needed

• Rest: Avoid activities that aggravate pain
• Ice: Apply ice 15-20 minutes several times daily
• Compression: Use elastic bandage if swelling
• Elevation: Reduce swelling when possible

• Reduce running distance or intensity
• Switch to low-impact activities (swimming, cycling)
• Avoid deep squats and lunges
• Use stairs carefully (lead with unaffected leg going down)

• Proper footwear with good arch support
• Patellar brace during activity
• Warm-up before exercise
• Gradual training progression

• Quadriceps stretch
• Hamstring stretch
• Calf stretch
• IT band stretch

• Follow the 10% rule (increase activity by max 10% per week)
• Include rest days in training program
• Cross-train with low-impact activities
• Maintain appropriate footwear

• Regular quadriceps strengthening
• Hip abductor exercises
• Core stability work
• Balance training

• Daily stretching routine
• Foam rolling
• Yoga for flexibility

• Running form analysis
• Proper squat technique
• Appropriate footwear for activity

With appropriate treatment, most patients with runner's knee experience significant improvement:

• 70-85% improve with conservative treatment
• Most return to activities within 6-12 weeks
• Chronic cases may take longer but still improve

• Week 1-2: Acute phase, focus on pain reduction
• Week 2-6: Rehabilitation phase, strengthening begins
• Week 6-12: Return to activity phase
• Month 3+: Maintenance and prevention

• Severity of condition
• Compliance with treatment
• Underlying anatomical factors
• Activity demands

Q: Can I run with runner's knee? A: Running may aggravate runner's knee. It's best to reduce mileage and intensity, switch to low-impact activities, and focus on rehabilitation. Gradual return to running should occur only when pain-free.

Q: How long does runner's knee take to heal? A: With proper treatment, most cases improve within 6-12 weeks. Chronic or severe cases may take longer.

Q: Is runner's knee permanent? A: No, runner's knee is treatable. Most people recover fully with conservative treatment. Without proper management, it can become chronic.

Q: Do I need surgery for runner's knee? A: Surgery is rarely needed. Over 90% of cases improve with conservative treatment including physiotherapy, medications, and activity modification.

Q: What exercises should I avoid with runner's knee? A: Avoid deep squats, lunges, running downhill, and high-impact activities until symptoms improve. Focus on low-impact exercises and specific strengthening as recommended by your therapist.

Q: Can runner's knee come back after treatment? A: Yes, without addressing underlying factors like muscle imbalance or training errors, recurrence is possible. Maintenance exercises and proper training principles help prevent recurrence.