Flashcards in Hip and Legs Deck (71)
Why is it important to not externally rotate the hip on X-ray?
Shortens the neck of the femur
What is the most common type of hip dislocation?
How is the leg positioned after a posterior hip dislocation?
Internally rotated and adducted (across midline) and leg is superior to acetabulum
If the femur is seen superior on X-ray following a dislocation, what type probably occurred?
Where does the leg lie after an anterior hip dislocation?
Externally rotated, abducted, and flexed
Anterior hip dislocations may be associated with what other condition?
Femoral neck fracture
If the femur is seen inferior on X-ray following a dislocation, what type probably occurred?
Where would the femur end up after a central hip dislocation?
Into pelvic outlet
What is the most serious complication of fractures of the proximal femur?
What gender is more likely to be affected by fractures of the proximal femur? Age population?
What is the most common location for a fracture of the proximal femur?
What two kinds of stress can cause a fracture of the proximal femur?
Overuse or insufficiency
What is the most common fracture seen due to insufficiency?
Hip (proximal femur)
What imaging procedure should be used following hip trauma?
MRI to check for marrow edema
How long does it take for a stress fracture to appear as a transverse radiolucency or fluffy periosteal reaction?
Why do stress fractures usually appear radiographically normal?
Less than 30% bone destruction, so unable to be seen
What is most likely the cause of a femoral shaft fracture in children under 5?
Abuse (usually transverse or comminuted)
What is the best recommendation for an athlete with a stress fracture?
REST for 6 months to allow healing
The FBI sign is more important in what area?
What is the most common area to be affected of the proximal tibia?
Lateral tibial plateau
An avulsion of the anterior tibial spine is more common in what population?
An avulsion of the anterior tibial spine results from what mechanism?
Hyperextension (usually fall of bicycle)
What soft tissue injury is likely to occur with an avulsion of the anterior tibial spine?
ACL (more common in adults)
What is the most common patella fracture type?
What is an important differential diagnosis when assessing patellar fractures?
Bipartite patella (look to history)
What is the usual location for a bipartite patella?
What is the most common knee ligament to be damaged?
What is the second most common knee ligament to be damaged?
What is the most common forced directed to the knee for injury?
Lateral to medial