Quiz 5: 2 Flashcards
What is the bayonet sign?
- Femur comes straight down
- Patella is in IR
- Proximal tibial external torsion
What is the camel sign?
- second “hump” in knee
- due to large infrapatellar fat pad
What is the camel sign also known as if it’s symptomatic?
Hoffa’s syndrome
What are the components of miserable malalignment syndrome?
- Femoral anteversion
- Femoral IR
- PF IR
- Proximal tibial ER
- Distal tibial varus
- STJ pronation
There is ALWAYS this type of force vector present on the patella
Valgus
What is the tracking pattern of the patella on the R and L knees?
- C on left
- Reverse C on R
Patella swoops toward midline during knee extension and back out at full extension
Where does the plica insert?
Medial aspect of the infrapatellar fat pad
What is the plica?
Thickening of the medial retinaculum
What test can help implicate the plica?
Stutter test
What are the two classifications of patellar dislocations
- LAACS
- TONES
LAACS group =
Laxity
LAACS:
L
- Generalized Laxity
- Lower age at initial dislocation
LAACS:
AA
- Atraumatic
- Abnormal PF architecture
- Abnormal ligamentous laxity
LAACS:
C
- Chronic in nature
- Contralateral involvement
LAACS:
S
- Sex dependent
- Greater # of females