Hohl classified fractures of the tibial condyles (plateau) based on the type and location of the injury. The author is from the University of California in Los Angeles.
Parameters:
(1) displacement of the fracture
(2) depression
(3) features of the fracture
Displacement |
Depression |
Fracture |
Type |
undisplaced |
no or minimal |
split and no comminuted fragment |
A |
displaced |
local depression single condyle (central) |
comminuted, mosaic-like depressed fragment |
B |
displaced |
local depression single condyle |
split fragment and comminuted depressed fragment |
C |
displaced |
total depression single condyle |
split and no comminuted fragment |
D |
displaced |
no or minimal |
split |
E |
displaced |
total depression both condyles |
comminuted both condyles |
F |
where:
• The Type is according to the component figure in Figure 1, page 1456).
Type A (undisplaced): There is minimal displacement (0 - 3 mm) with little disruption of the articular surface. Collateral and/or cruciate ligament ruptures may be present.
Type B (central local depression): Depression of the subcondylar bone without split fracture.
Type C (split local depression): Depression of subcondylar bone plus split fracture of outer condylar surface.
Type D (total depression): The entire condyle is displaced distally and laterally, with angular deformity of the knee. There is no comminution of the articular surface.
Type E (split, without depression): The split fracture involves the anterior or posterior condylar margins.
Type F (comminuted upper tibia): Both condyles are disrupted, and corresponds to "T" or "Y" fracture. There may be transverse subcondylar fracture. There is considerable damage to the menisci and the articular surface.
Specialty: Surgery, orthopedic, Emergency Medicine, Critical Care, Surgery, general