Patellofemoral pain syndrome Flashcards
What is the mechanism of injury?
Overuse/wear and tear
What patellar malalignments that occur?
- Lateral deviation
- Lateral tilt
- Q-angle
- Foot pronation
What muscle imbalances can cause this?
- Tight vastus lateralis
- Weak vastus medialis
What muscles should be worked on for flexibility?
- Quadriceps
- Hamstrings
- Iliotibial band
What effect does the Q-angle have?
Biomechanically induces lateral vector force
What effect does foot pronation have?
- Medially rotates the tibia
- Increases the lateral vector advantage of the vast us lateralis
- Increased lateral patellar excursion
What are some static stabilizers to work on?
- Patellofemoral ligaments
- Medial and lateral retinaculum
- Patellotibial ligaments
Patellofemoral joint reaction forces occur from a combination of?
- Articulation and contact area
- Resultant force vector between the quadriceps and patellar tendon
- Muscle contraction
In what position should open kinetic chain exercises be done?
Between 45-90 degrees
In what position should closed kinetic chain exercises be done?
A safe range should not exceed 90 degrees of flexion
What are some treatment options for strengthening the quadriceps?
- Electrical muscle stimulation
- Closed kinetic chain exercises: wall squats, leg press, lunges
- Open kinetic chai exercises: terminal extensions, high velocity isokinetic extensions
- Biofeedback
What muscles should be worked on for flexibility?
- Quadriceps
- Hamstrings
- Adductor magnus (medially displaced patella)
- Iliotibail band )laterally displaced patella)
What are some ways to stabilize the patella?
- Patellar stabilization braces
- Cho Pat straps: patellofemoral decompression
What is tendonitis?
Inflammation of the tendon due to microtears
What is tendonosis?
Collagen degeneration primarily at the boney attachment
