Tibial Plateau Fracture Flashcards
1
Q
What is the difference between med and lat plateaus?
A
- medial is larger and concave in sagittal and coronal planes
- lateral is higher and convex in sagittal and coronal planes
2
Q
Describe normal angle
A
- 10 deg postinf slope
3
Q
What separates the med and lat plateaus?
A
- intercondylar eminence
4
Q
What is located 2-3cm distal to the tib plateau?
A
- three bony prominences
5
Q
Describe the three bony prominences?
A
- ant: tibial tub, pat. tendon attachment
- med: pes anserine, med HS attachment
- lat: Gerdy’s tubercle, ITB attachment
6
Q
MOI of med tib plateau fx
A
- higher energy
- a/w soft tissue injuries: LCL disruptions, peroneal n. lesions, pop. vessel damage
7
Q
General MOI of tib plateau fx
A
- valgus/varus w/ axial loading
8
Q
Evaluation
A
- neuro: ESSENTIAL; trifurcation of pop a. tethered post b/t add hiatus and soleus complex AND peroneal n. tethered lat around fib neck
- aspiration: hemarthrosis
- r/o compartment syndrome
- ligamentous injuries
9
Q
Classification
A
- Schatzker
10
Q
Schatzker Type I
A
- lat plateau, split fx
11
Q
Schatzker Type II
A
- lat plateau, split depression fx (MC)
12
Q
Schatzker Type III
A
- lat plateau, depression fx
13
Q
Schatzker Type IV
A
- med plateau fx
14
Q
Schatzker Type V
A
- bicondylar plateau fx
15
Q
Schatzker Type VI
A
- plateau fx w/ separation of metaphysis from diaphysis
