Growth plate injuries/articular fxs

Question 1

common site of salter harris I fractures

Answer 1

distal femur (most common)
avulsion of tibial apophysis

Question 2

treatment of salter harris I fxs

Answer 2

K-wires (+/- tension band ie. tibial apophysis)

Question 3

articular fxs require

Answer 3

• anatomic reduction w/ interfragmentary compression

Question 4

which physis is prone to SH V injury?

Answer 4

distal ulna physis

Question 5

secondary ALD from distal ulna physis injury

Answer 5

• radius procurvatum
• carpal valgus
• supination of distal limb
• elbow and carpal incongruity

Question 6

pain and lameness secondary to ALD assoc w/ type V SH fx of distal ulna usu cause by…

Answer 6

elbow subluxation and development of OA

Question 7

3 principles of articular fx repair

Answer 7

1. Ideally w/in 48hrs
2. Perfect anatomic reduction
3. Interfragmentary compression

Question 8

sequelae of fx gap and motion in articular fx repair

Answer 8

indirect/callus healing -> OA

Question 9

how is interfragmentary compression achieved?

Answer 9

lag screws

Question 10

what types of SH fxs are articular?

Answer 10

type III and IV