Patellofemoral Pain Syndrome AKA Chondromalacia Patella Flashcards
What causes Patellofemoral pain syndrome?
- Overuse of the knee
*will be pain/aching in the anterior knee
Where are the symptoms usually located?
Posterior to the patella
(Patella is attached to the quad and the tibia via the patellar tendon)
Where will the tilt/subluxation be?
- Laterally due to weakness of the medial quad musculature
What happens when flexion increases in a patient with Patellofemoral pain syndrome?
There will be increased force on the posterior surface of the patella
What will happen if a patient has a patellar tilt?
- The force is not evenly distributed across the posterior patella
*can lead to pain and chondromalacia
With knee extension what side will be loose or tight?
- Tight laterally
- Loose medially
With flexion where will the pain be located?
- Laterally
What causes Patellofemoral pain syndrome?
A lateral patellar tilt
How will a patient present with Patellofemoral pain syndrome?
- Pain at anterior aspect of knee (posterior patella)
- Might complain of lateral knee pain
- Worse with walking (downhill), running, sitting for long periods
What are the PE findings
- Tender at lateral facet of patella
- Pain with patellofemoral loading
- Decreased ROM (flexion)
- Increase Q angle
What will the diagnostic test find?
- Radiographs (AP, Lateral, Sunrise)
*patellar tilt - MRI
*chondromalacia - CT
*performed with the knee in increasing degrees of flexion allows for measurement of tilt and contact of patella in Trochlea
What is the treatment
- Ice/elevate/NSAIDs
- PT (quad strengthening, medially)
- Orthotics, neoprene J-pad knee sleeve)
What are the surgical options?
- Knee arthroscopy
*chondroplasty, cutting through the lateral retinaculum)