CT

Cuboid Fractures

Types

 

1.  Capsular avulsions

 

2.  Body / Nutcracker fracture

 

Nutcracker fracture

 

Epidemiology

- rare

 

Mechanism

- forced eversion / abduction of forefoot

- cuboid crushed between 4th and 5th MT and calaneum

 

Pathology

- displaced cuboid fracture with subluxation of tarsus

Hoffa fracture

Definition

Hoffa Fracture Xray

 

Coronal plane fracture of distal femoral condyle

- intra-articular

- often only attachment is posterior capsule

 

Epidemiology

 

Rare

 

Mechanism

 

Usually a severe valgus trauma

 

Xray

 

Osteoblastoma

Epidemiology

 

Uncommon

 

< 1% Primary bone tumour

 

Young boys

- second decade

 

Location

 

Similar to OO

 

Spine 30%

- especially posterior elements

 

Long bones 35%

 

Clinical

 

Back or limb pain

- pain less severe than OO

Background

DefinitionGarden 3 Displaced Subcapital

 

Fracture distal to articular surface & proximal to intertrochanteric region

 

Epidemiology

 

On average 4 years younger than intertrochanteric fracture

 

One year mortality as high as 36%

 

Only 1/3 will return to pre-fracture living environment