Finger Orthoses Flashcards
1
Q
Ox Management of the Fingers
A
must be low profile enough to enable normal function of adjacent joints/fingers
2
Q
Mallet Finger
Presentation
A
Flexion of DIP
3
Q
Mallet Finger
Causes
A
- axial load to extended DIP
- Flexion force to the finger tip
- laceration of the extensor tendon
- avulsion of the tendon
4
Q
Mallet Finger
Function
A
- inability to extend DIP (extensor lag)
- passive extension is possible
- contracture can develop over time if the DIP cannot be passivley extended
5
Q
Mallet Finger
Treatment Goals
A
- prevent DIP flexion with stack splint
- maintain DIP extensio nor hyperextension
6
Q
Mallet Finger
Treatment Protocol
A
- maintained extension for 6 weeks (no flexion at all)
- after 6 weeks weaned off orthosis
- may still wear at night
7
Q
Mallet Finger
Complications
A
- extensor lag: refer to physician
- <10 deg is considered acceptable
8
Q
Boutonniere Deformity
Presentation
A
PIP Flexion and DIP hyperextension
9
Q
Boutonniere Deformity
Causes
A
- disruption of the central slip attachment
- axial loading, lacerations, burns, RA
10
Q
Boutonniere Deformity
Mechanism of injury in RA
A
- synovitis: inflammation and thickening of the synovium
- surrounding structures may be compromised
11
Q
Boutonniere Deformity
Treatment Goals
A
- maintain PIP extension
- free motion at MCP and DIP
12
Q
Boutonniere Deformity
Treatment Protocol
A
6-8 wks
13
Q
Boutonniere Deformity
Complications
A
PIP flexion contracture may require serial casting
14
Q
Swan Neck Deformity
Presentation
A
- PIP Hyperextension and DIP flexion
- PROM may be possible or may be contracted
15
Q
Swan Neck Deformity
Causes
A
- lateral bands of extensor mechanism shift dorsally
- RA or trauma
