Anderson–D’Alonzo — Odontoid (Dens) Fractures

Type I: tip avulsion (rare, stable). Type II: base of dens (common, unstable, high nonunion). Type III: into C2 body (better healing).

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Practised by MCQ

Which type of Anderson-D'Alonzo odontoid fracture is characterized by an avulsion of the tip of the dens?

What is the most common type of odontoid fracture according to the Anderson-D'Alonzo classification?

What is a key characteristic of Type II odontoid fractures?

What is the recommended treatment for a stable Type I odontoid fracture?

Which ligament is crucial for maintaining the stability of the dens during an odontoid fracture?

In which age group is the occurrence of odontoid fractures most common?

What is the primary reason for the high non-union rates associated with Type II odontoid fractures?

What is the typical mechanism of injury for a Type II odontoid fracture in an elderly patient?

Which of the following types of odontoid fractures generally heal well with conservative management?

What should be assessed in patients with Type I odontoid fractures to rule out associated injuries?

Allman / Neer Distal Third — Clavicle

Mayo Classification — Olecranon Fractures

Regan–Morrey Classification — Coronoid Fractures