Fracture classification

Clasifique la siguiente fractura AO/OTA:

• 12A2

• 12A3

• 12B2

Answer explanation

Simple transverse fractures of the humeral shaft are classified as 12A3 fractures.

There are only two fragments, and the fracture plane is short and with <30° obliquity.

Clasifique la siguiente fractura localizada en la tibia: AO/OTA:

(a)  

Answer explanation

These are simple diaphyseal fractures of the tibia with a spiral fracture line, located at whatever level of the diaphysis.
This fracture is classified as an AO/OTA 42A1 fracture.

La siguiente fractura ubicada en el femur se clasifica según la AO/OTA:

(a)  

Answer explanation

Simple extraarticular fractures are characterized by a single circumferential disruption of the diaphysis, this may be oblique, spiral or transverse. fractures can result from relatively low energy, twisting forces to distal femur. They are often seen in osteoporotic, elderly patients.33A2.1 Spiral

Clasifique la siguiente fractura AO/OTA y explique porqué la clasifica de esa forma:

Answer explanation

Simple suprasyndesmotic diaphyseal fibular fractures combined with a medial lesion are classified as AO/OTA 44C1 fractures.

The malleolar segment is classified by the

level of the lateral malleolar (fibula) fracture with respect

to the syndesmosis. The fracture line is infrasyndesmotic

(type A), transsyndesmotic (type B), and suprasyndesmotic

(type C)

Clasifique la siguiente fractura según la AO/OTA:

• 31B2

• 31B1

• 31A1

• 31A2

Answer explanation

Multifragmentary pertrochanteric fractures with an incompetent lateral wall are classified by AO/OTA as 31A2.

The coronal fragment may be further fractured.

Clasifique la siguiente fractura de clavícula según AO/OTA:

(a)  

Answer explanation

The AO/OTA classification does not further subdivide simple fractures of the diaphysis into subtypes (spiral, oblique, or transverse), but the treatment may vary depending of the fracture configuration.

They are all classified as AO/OTA 15.2A fractures.

Clasifique la siguiente fractura según la AO/OTA:

• 13C1

• 13C3

• 13B2

• 13B1

Answer explanation

This fracture type is classified by the AO/OTA as 13C3.All three sides of the triangle of stability are broken.

Clasifique la siguiente fractura según la AO/OTA:

(a)  

Answer explanation

These are classified by AO/OTA as 34A1 fractures.

Extraarticular avulsion fractures generally occur in adolescents, or young adults. This fracture type is biomechanically equivalent to patellar tendon rupture. This avulsion fracture may be simple or multifragmentary.

Clasifique la siguiente fractura en 1 metatarsiano según la AO/OTA:

Answer explanation

• Simple diaphyseal fracture (AO/OTA 87.1.2A)

Clasifique la siguiente fractura de fémur distal según la AO-OTA:

• 33B

• 33A

• 33C

• 31B