Odontoid fractures are classified into three types. Type III is not an odontoid fracture but rather fracture of the vertebral body.

Three types of fracture of the base of the first metacapal bone (thumb) are distinguished by eponyms.

The Gehweiler classification divides fractures of the first cervical vertebra into five types. Type III is also refered to as Jefferson fracture. The classical Jefferson fracture is a four part fracture, where both the anterior and the posterior arch is fractured twice, but fractures with two or three fracture parts may also occur.

Letournel and Judet classification of acetabular fracture is a modification of the original 1964 Judet classification. It divides acetabular fractures into 5 simple patterns and 5 complex patterns. Complex fractures are more common and are composed of ≥2 simple fracture patterns.

Harris and Coupe classification was published in 2004. It is based on axial CT images of pelvis and has four basic types. Type II has four subtypes.

The Anderson and Montesano classification was published in 1988. It divides occipital condylar fractures into three types according to their morphology and mechanisms of injury.

Epiphyseal fractures are fractures that involve the epiphyseal growth plate in children and teenagers. Classificaton by Salter and Harris that was published in 1963 divides them into five types. It is a modification of previous classifications by Poland (1898) and Aitken (1936). Later, several other rare types of epiphyseal fractures were appended by other authors. Epiphyseal fractures may result in growth disturbances. A mnemonic "SALTR" can aid in memorizing the types for the purporses of examination.

The term "endoleak" was proposed in 1996 by White et al. in a letter to editor, where the authors described its basic types. It refers to a failure of endovascular aneurysm repair (EVAR) with persistent blood flow within an aneurysm sac but outside the lumen of the endoluminal graft. Persistent endoleak causes continued pressurization of the aneurysm with the risk of its rupture as a consequence.

The Melone classification was first published in 1986. It divides distal radius fractures in four types. This classification is based on a concept of four major fragments including the shaft, the radial styloid process, a dorsal-medial fragment, and a palmar-medial fragment. The latter two fragments form the lunate fossa.

The Frykman classification divides distal radius fractures in eight types. It considers involvement of the radiocarpal and radioulnar joints as well as fracture of the ulnar styloid process. Basically it contains four types (odd numbers) and four related subtypes (even numbers) with fracture of the ulnar styloid process. However, its prognostic value was disputed.