What should the treatment be for a patient with bilateral patellofemoral pain, lateral patellar tilt, an increased tibial tuberosity–trochlear groove distance of 22 mm, right‑knee trochlear dysplasia, no recent patellar dislocation, no focal patellofemoral chondrosis, and no acute fracture or joint effusion?

Treatment Recommendation for Bilateral Patellofemoral Pain with Structural Abnormalities

This patient should be treated with a combined intervention program consisting of individualized hip-and-knee-targeted exercise therapy plus prefabricated foot orthoses as first-line management. 1, 2

Primary Treatment Algorithm

First-Line Conservative Management (Strongly Recommended)

Combined hip and knee exercise therapy forms the cornerstone of treatment and should be initiated immediately 1, 2. This approach is superior to knee exercises alone and demonstrates efficacy for pain reduction and functional improvement in the short, medium, and long term 2.

• Exercise prescription should be modified based on:
  • Current pain severity and irritability levels
  • Hip and knee strength deficits (assess with hand-held dynamometry)
  • Movement patterns during functional tasks (single leg squat, stair climbing)
  • Tissue tolerance to load
  • Patient's fear avoidance behaviors and self-efficacy 1

Add prefabricated foot orthoses to the exercise program 1, 2. The 2024 best practice guide specifically identifies "individually modified prefabricated foot orthoses" as having primary efficacy, with strong support from both patients and expert clinicians 1. These provide short-term pain reduction and work synergistically with exercise therapy 2.

Key Clinical Reasoning Points

The imaging findings reveal significant structural abnormalities:

• TT-TG distance of 22 mm (pathological threshold is >15-20 mm) 3, 4
• Trochlear dysplasia (right knee specifically noted)
• Lateral patellar tilt

However, the absence of recurrent dislocation history, no focal chondrosis, and no acute injury fundamentally changes the treatment approach. This patient has patellofemoral pain syndrome with anatomical risk factors, NOT patellar instability requiring surgical correction.

When Conservative Treatment Is Insufficient

If the patient fails to respond adequately to 3-6 months of combined exercise therapy and foot orthoses, consider:

Additional adjunctive interventions (though evidence is less robust):

• Patellar taping may be added during symptom aggravation phases 1
• Movement/running retraining if the patient is a runner 1
• Lower quadrant manual therapy (NOT in isolation) 1

Do NOT use:

• Patellofemoral, knee, or lumbar mobilizations in isolation 2
• Electrophysical agents 2

Surgical Considerations (NOT Currently Indicated)

The structural abnormalities (increased TT-TG distance, trochlear dysplasia) would typically warrant surgical discussion only if:

1. Patient experiences recurrent patellar dislocations (not present here) 5, 6, 7
2. Conservative management fails completely after adequate trial
3. Patient has objective patellar instability with functional limitations

Surgical options would include (in order of invasiveness):

• MPFL reconstruction 5, 6, 8
• Tibial tubercle osteotomy for TT-TG >20mm 6, 7, 3, 4
• Trochleoplasty (reserved for severe dysplasia with recurrent instability) 5, 6, 7

Recent evidence suggests isolated MPFL reconstruction can be successful even with multiple anatomical risk factors including TT-TG >20mm and severe trochlear dysplasia 8, but this is not indicated for pain alone without instability.

Critical Pitfalls to Avoid

1. Do not rush to surgery based solely on imaging abnormalities. The TT-TG distance of 22mm and trochlear dysplasia are anatomical findings that do not automatically require surgical correction in the absence of recurrent dislocation 5.

2. Do not prescribe knee exercises alone - the combination of hip and knee exercises is specifically recommended over knee-only programs 2.

3. Do not use manual therapy or mobilizations as standalone treatments - they must be part of a combined intervention program 2.

4. Ensure proper training in foot orthoses prescription or establish referral pathways, as many clinicians lack confidence in this evidence-based intervention 1.

Treatment Timeline

• Weeks 0-12: Intensive combined hip-knee exercise therapy + foot orthoses, with weekly progression based on symptom response
• Months 3-6: Continue exercise program with focus on functional activities and patient-specific goals
• Month 6+: Reassess if conservative management has failed; consider surgical consultation only if objective instability develops

The bilateral nature of symptoms actually supports conservative management, as it suggests a systemic biomechanical issue rather than isolated structural pathology requiring surgical correction.