Items tagged “foot”

41 results found
Article

Avulsion fracture of the 5th metatarsal styloid

Avulsion fracture of the 5th metatarsal styloid, also known as a pseudo-Jones fracture or a dancer fracture, is one of the more common foot avulsion injuries and accounts for over 90% of fractures of the base of the 5th metatarsal. Despite what should be a simple entity, controversy exists, as ...
Article

Böhler angle

Böhler angle, also written as Bohler angle or Boehler angle, is also called the calcaneal angle or tuber joint angle 1, and is the angle between two lines tangent to the calcaneus on the lateral radiograph. These lines are drawn tangent to the anterior and posterior aspects of the superior calca...
Article

Haglund syndrome

Haglund syndrome refers to the triad (Haglund triad) of: insertional Achilles tendinopathy retrocalcaneal bursitis Haglund deformity (i.e. posterosuperior calcaneal exostosis) This results in pain at the back of the heel. It is associated with calcaneal spurs, and the wearing of high heels (...
Article

Jones fracture

A Jones fracture is an extra-articular fracture at the base of the fifth metatarsal.  Pathology It is a transverse fracture at the base of the fifth metatarsal, 1.5 to 3 cm distal to the proximal tuberosity at the metadiaphyseal junction, without distal extension.  Mechanism The fracture is ...
Article

Lisfranc injury

Lisfranc injuries, also called Lisfranc fracture-dislocations, are the most common type of dislocation involving the foot and correspond to the dislocation of the articulation of the tarsus with the metatarsal bases. Pathology Anatomy The Lisfranc joint is the articulation of the tarsus with ...
Article

Os tibiale externum

An os tibiale externum, also known as an accessory navicular or os naviculare accessorium, is a large accessory ossicle that can be present adjacent to the medial side of the navicular bone. The tibialis posterior tendon often inserts with a broad attachment into the ossicle. Most cases are asym...
Article

Hallux valgus

A hallux valgus is a fixed abduction of the first metatarsophalangeal joint of the great toe. It is usually due to metatarsus primus varus which is a medial deviation or adduction of the first metatarsal with an increased first-second metatarsal angle. Radiographic features Plain radiograph A...
Article

Flexor hallucis brevis muscle

The flexor hallucis brevis muscle is one of the small muscles of the foot that is involved in flexion of the 1st toe. The hallux sesamoid bones are embedded within its tendon.  Summary origin: plantar surface of cuboid insertion: medial and lateral sesamoid bones of first metatarsal action: ...
Article

Peroneal tubercle hypertrophy

Peroneal tubercle hypertrophy refers to the presence of an unusually large peroneal tubercle. Radiographic features Two bony projections or protuberances may be seen from the lateral wall of the calcaneus – the peroneal tubercle and the retrotrochlear eminence. The peroneal tubercle is presen...
Article

Fractures of the proximal fifth metatarsal

The proximal 5th metatarsal is the site of a number of fractures and variants which mimic fractures. These include: stress fracture of the 5th metatarsal Jones fracture avulsion fracture of the proximal 5th metatarsal accessory ossicles os vesalianum, or os peroneum normal apophysis of th...
Article

Stress fracture of the 5th metatarsal

Stress fracture of the 5th metatarsal is the least common fracture type of the proximal 5th metatarsal, with an avulsion fracture being the most common, followed by Jones fracture. Stress fractures typically occur within 1.5 cm of the metadiaphyseal junction, slightly distal to the site of a Jon...
Article

Os peroneum

An os peroneum is a small accessory bone located at the lateral plantar aspect of the cuboid within the substance of the peroneus longus tendon as it arches around the cuboid. It is a very common anatomical variant, seen in up to 26% of feet 1. Differential diagnosis It should not be mistaken ...
Article

Freiberg disease

Freiberg disease, also known as Freiberg infraction, is osteochondrosis of metatarsal heads. It typically affects the 2nd metatarsal head, although the 3rd and  4th may also be affected. It can be bilateral in up to 10% of cases. Epidemiology It is most common in females aged 10-18 years (male...
Article

Os trigonum

The os trigonum (plural: os trigona) is one of the ossicles of the foot and can be mistaken for a fracture.  It sits posterior to the talus on the lateral foot radiograph and represents a failure of fusion of the lateral tubercle of the posterior process. It is estimated to be present in ~7% of...
Article

Os calcaneus secundarius

An os calcaneus secundarius is an accessory ossicle of the anterior calcaneal process present in up to 5% of the population at cadaveric examination. The ossicle can be a cause of ankle pain and may mimic bifurcated ligament avulsion fracture of the anterior calcaneal process. Differential diag...
Article

Chauveaux–Liet angle

The Chauveaux–Liet angle (CL angle) is represented by the difference between the angle of verticalization (α) and morphologic angle (β) of the calcaneus (CL angle = α − β). Angle α is the calcaneal pitch angle or angle of verticalization of calcaneus described as the intersection of the baselin...
Article

Calcaneal fracture

Calcaneal fractures are the most common tarsal fracture and can occur in a variety of settings. Epidemiology The calcaneus is the most commonly fractured tarsal bone and accounts for about 2% of all fractures 2 and ~60% of all tarsal fractures 3. Pathology Calcaneal fractures can be divided ...
Article

Hallux rigidus

Hallux rigidus (osteoarthrosis with restricted motion) is the second most common disabling deformity of the first metatarsophalangeal joint after hallux valgus. Terminology Hallux limitus is distinct from hallux rigidus. Hallux limitus refers to the functional pain secondary to lack of flexibi...
Article

Calcaneonavicular coalition

Calcaneonavicular coalition is one of the two most common subtypes of tarsal coalition, the other being talocalcaneal coalition. As with any coalition it may be osseous (synostosis), cartilaginous (synchondrosis) or fibrous (syndesmosis). Radiographic features This type of coalition is more ea...
Article

Differential diagnosis for metatarsal region pain

Forefoot pain in the metatarsal region is a common complaint and may be caused by a number of conditions. It is worthwhile for a radiologist to have knowledge of the potential causes and their imaging features 1. Pathology Etiology Trauma turf toe plantar plate disruption sesamoiditis str...

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