Syndesmotic Ankle Injuries Flashcards
1
Q
Ligamentous anatomy
A
- ant. inf. tibiofibular
- interosseous
- post. inf. tibiofibular
- inf. transverse tibiofibular
2
Q
During dorsiflexion, what happens to the mortise and stability?
A
- widens
- increases
3
Q
Define: incisura fibularis
A
- concave surface of the distal lateral tibia
4
Q
Define: Weber A fx
A
- infrasyndesmotic distal fib fx
5
Q
Weber A fx tx
A
- stable, rarely require sx
6
Q
Define: Weber B fx
A
- transsyndesmotic distal fib fx
7
Q
Weber B tx
A
- variably unstable, test with ER or gravity stress XR
8
Q
Define Weber C fx
A
- suprasyndesmotic fx
9
Q
Weber C tx
A
- unstable, requires sx
10
Q
Worse outcomes s/p 1 yr are a/w how much displacement of post. mal fx?
A
- 2mm
11
Q
Ant compartment M. (med to lat)
A
- ant. tib
- EHL
- EDL
- peroneus tertius
12
Q
Lat compartment M. (sup to deep)
A
- peroneus longus
- peroneus brevis
13
Q
Superficial post. compartment M. (sup to deep)
A
- gastroc
- soleus
- plantaris
14
Q
Deep post. compartment M. (sup to deep)
A
- popliteus
- FHL
- FDL
- post. tib
15
Q
Dissection for a lateral ankle approach
A
- subQ for ORIF
16
Q
Risks of a lateral ankle approach
A
- sural n. (postlat)
- superficial peronal n. (ant)
17
Q
Interval for a postlat ankle approach
A
- b/t peroneus brevis and FHL
18
Q
Dissection for a postlat ankle approach
A
- ID peroneal tendons
- Incise peroneal retinaculum to mobilize tendons lat, which exposes FHL
- Retract FHL medially to expose tibia and ankle joint
19
Q
Risks for a postlat ankle approach
A
- lesser saphenous v
- sural n. (post to lat mal)
