Wrist and Hand Sprains Flashcards
1
Q
Sprains at the wrist are primarily caused by what?
A
- Hyperextension mechanism with a FOOSH
2
Q
What do sprains at the wrist typically involve?
A
Flexor retinaculum and associated ligaments
3
Q
What is the flexor retinaculum?
A
Fibrous band on the volar wrist
4
Q
Where does the flexor retinaculum attach?
A
Attaches from the pisiform and hamate to the scaphoid and trapezium
5
Q
What are the functions of the flexor retinaculum?
A
- Holds flexor tendons
- Supports carpal arch as most activities performed with wrist extend
- Limits hyperextension
6
Q
What do the collateral ligaments support in the wrist and fingers?
A
Support radiocarpal, ulnotriquetral, MCP and IP joints medially and laterally
7
Q
Medial or ulnar collateral ligaments limit _____ stresses.
A
Valgus
8
Q
Lateral or radial collateral ligaments limit _____ stresses.
A
Varus
9
Q
What is skier’s/ gamekeeper’s thumb?
A
- Involves ulnar collateral ligament at at thumb MCP joint
- Excessive valgus stress with hyperextension and abduction during a FOOSH
10
Q
What are signs and symptoms of a sprain?
A
11
Q
What is the PT Rx for sprains?
A
