What is Patellar Maltracking?
Patellar maltracking is an imbalance in the dynamic relationship between the patella and trochlea, causing the patella to move abnormally within the trochlear groove during knee motion, often secondary to underlying structural abnormalities 1. This condition presents as diffuse retropatellar and/or peripatellar pain during activities like squatting, stair climbing, and running 2, 3.
Clinical Presentation
Patients typically report:
- Gradual onset anterior knee pain aggravated by patellofemoral joint loading
- Pain during squatting, stair ambulation, and running
- Patellar apprehension and fear of instability 4
- Swelling and mechanical symptoms 5
- Over 50% experience persistent symptoms beyond 5 years despite treatment 3
Critical caveat: This condition may precede patellofemoral osteoarthritis, making early recognition and proper management essential 3.
How is Patellar Maltracking Treated?
Primary Treatment Approach
Exercise therapy targeting both hip and knee muscles, combined with patient education, should be the foundation of treatment for all patients with patellar maltracking 2, 3. This recommendation is based on the most recent 2024 best practice guideline from the British Journal of Sports Medicine 2.
Core Treatment Algorithm:
Step 1: Initial Assessment Evaluate these specific factors before selecting interventions 2:
- Background risk factors (trochlear dysplasia, patella alta, elevated TT-TG distance >16mm)
- Patient's primary symptoms and functional limitations
- Physical impairments (hip/knee strength deficits, foot posture abnormalities)
- Patient preferences and activity goals
Step 2: Primary Intervention (All Patients)
- Knee-targeted exercise therapy (strengthening quadriceps, particularly vastus medialis obliquus)
- Hip-targeted exercise therapy (strengthening hip abductors and external rotators)
- Combined hip + knee exercises provide superior outcomes 3
- Education underpinning all interventions, adjusted to patient needs 2
Step 3: Add Supporting Interventions Based on Individual Presentation 2:
Prefabricated foot orthoses - Recommended for short-term pain relief, particularly in patients with:
- Abnormal foot posture or mobility characteristics
- Immediate functional improvement when trialed 3
- Do NOT use custom fabricated orthoses - no evidence supports their use 3
Patellar taping - May be added as part of combined approach, though evidence remains uncertain as standalone intervention 3
Manual therapy - Can be incorporated into combined intervention programs, but:
- Avoid patellofemoral, knee, or lumbar mobilization as primary treatment 3
- May use as adjunct component only 3
Movement/running retraining - Consider for patients with gait abnormalities, though evidence is still evolving 2
What NOT to Do
Avoid these interventions - they are not recommended based on consensus guidelines 3:
- Joint mobilization as primary treatment
- Electrophysical agents
- Lateral release (may actually increase instability)
- Custom fabricated foot orthoses
Surgical Considerations
While the provided guidelines focus on conservative management as first-line treatment 3, surgical intervention may be necessary for:
- Recurrent instability with documented anatomical abnormalities
- Failed conservative management with persistent symptoms
- Significant structural pathology (severe trochlear dysplasia, TT-TG >16mm, patella alta) 6, 7, 8
Surgical options include MPFL reconstruction, tibial tubercle osteotomy, and addressing associated cartilage lesions 7, 8, 5, but exercise therapy and physical interventions should always be attempted first 3.
Treatment Duration and Expectations
- Short-term effects (up to 3 months): Exercise therapy, combined interventions, and foot orthoses all show benefit 3
- Medium-term effects (3-12 months): Exercise therapy and combined interventions maintain effectiveness 3
- Long-term effects (>12 months): Exercise therapy shows sustained benefit; evidence for combined interventions beyond 12 months is lacking 3
Important clinical reality: More than 50% of patients continue experiencing symptoms 2-8 years post-diagnosis, emphasizing the need for realistic patient expectations and long-term management strategies 3.
Key Clinical Pitfalls to Avoid
Don't rely on passive treatments alone - The evidence strongly supports active, movement-based interventions over passive modalities 3
Don't use a one-size-fits-all approach - Tailor supporting interventions to individual patient presentation after thorough assessment 2
Don't neglect education - Patient understanding of their condition and self-management strategies is essential for long-term success 2
Don't rush to surgery - Conservative management should be exhausted first, as exercise therapy has the strongest evidence base 3