Knee fractures: Difference between revisions

Revision as of 19:52, 29 September 2014

Background

Most pts with severe ligamentous or meniscal injury have normal radiographs
Lipohemarthrosis suggests occult fx
- Lateral view: Fat-fluid level indicates intra-articular fracture

Types

Differential Diagnosis

Knee diagnoses

Acute knee injury

Nontraumatic/Subacute

Source

Tintinalli

Authors:

@@ Line 3: / Line 3: @@
 *Lipohemarthrosis suggests occult fx
 **Lateral view: Fat-fluid level indicates intra-articular fracture
+==Types==
+*[[Patella fracture]]
+*[[Tibial plateau fracture]]
 ==Differential Diagnosis==
 {{Knee DDX}}
-==[[Patella fracture]]==
-==[[Tibial plateau fracture]]==
-===Background===
-*Occurs via axial load that drives femoral condyle into tibia
-*ACL and MCL injuries assoc w/ lateral plateau fx
-*PCL and LCL assoc w/ medial plateau fx
-*Compartment syndrome may occur
-*Segond Fracture
-**Avulsion fx of margin of lateral tibial plateau just below joint line
-**Associated w/ tear of ACL and meniscal ligaments
-===Imaging===
-*AP, lateral, oblique views (internal for lateral plateau, external for medial plateau)
-**AP - line drawn at lateral margin of femur should not have >5mm of tibia beyond it
-*CT or MRI should be considered if plain film negative but high clinical suspicion
-===Schatzker Classification===
-*Schatzker I Lateral split
-*Schatzker II Split with depression
-*Schatzker III Pure lateral depression
-*Schatzker IV Pure medial depression
-*Schatzker V Bicondylar
-*Schatzker VI Split extends to metadiaphysis
-[[File:Schatzker Classification.jpg|thumb|Schatzker Classification of Tibial Plateau Fractures]]
-===Management===
-*Knee immobilizer w/ non-weightbearing and ortho referral in 2-7d
-===Disposition===
-*Indications for referral within 48hr:
-**Significant displacement or depression
-**Suspected or documented ligamentous injury
 ==See Also==