Patellofemoral Pain Evaluation and Management

Patellofemoral pain (PFP) is characterised by diffuse anterior knee discomfort arising from the articulation between the patella and femoral trochlea. Evaluation encompasses a combination of patient history, clinical examination of patellar tracking and alignment, assessment of muscle strength and flexibility, and, where indicated, non-invasive imaging or biomechanical modelling. Management prioritises graduated exercise therapy to restore quadriceps and hip musculature balance, optimise movement patterns and modulate joint loading. Adjunctive strategies include patellar taping or bracing to correct maltracking, foot orthoses when biomechanical foot faults are present, and patient education to address pain-related fear and promote adherence. Emerging techniques for evaluation integrate advanced computational modelling with joint reaction force analysis and imaging to quantify patellofemoral joint stress more precisely. Rehabilitation protocols now employ loading indices to categorise exercises by patellofemoral load and guide progressive dosing. A stepwise, multidisciplinary approach ensures that conservative measures are escalated only when exercise alone proves insufficient, thereby reducing unnecessary interventions and healthcare burden.

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Patellofemoral Pain Evaluation and Management publication trend

The graph below shows the total number of articles in patellofemoral pain evaluation and management across all publications each year (not limited to Nature Index journals).

Technical terms

Patellofemoral Pain (PFP): Anterior knee pain originating from the patella-trochlea articulation, often worsened by loading activities such as squatting or stair ascent.

Patellofemoral Joint Loading Index: A composite metric combining peak force and cumulative impulse to quantify and rank the mechanical loads transmitted through the patellofemoral joint during various activities.

Patellofemoral Joint Stress (PFJS): The internal reaction force per unit area at the patellofemoral interface, reflecting the compressive forces experienced by cartilage and subchondral bone.

Exercise Therapy: A structured programme of progressive strengthening, flexibility and neuromuscular control exercises aimed at restoring balanced force distribution and movement patterns around the knee.

References

1. Patellofemoral Joint Loading Progression Across 35 Weightbearing Rehabilitation Exercises and Activities of Daily Living. The American Journal of Sports Medicine (2023).
2. The non-invasive evaluation technique of patellofemoral joint stress: a systematic literature review. Frontiers in Bioengineering and Biotechnology (2023).
3. Dutch multidisciplinary guideline on anterior knee pain: Patellofemoral pain and patellar tendinopathy. Knee Surgery, Sports Traumatology, Arthroscopy (2024).