Items tagged “ankle”
103 results found
Article
Subtalar instability
Subtalar instability refers to an unstable talocalcaneal or subtalar joint and is difficult to diagnose.
Epidemiology
Subtalar instability occurs in patients with lateral ankle instability in up to 10-25% 1.
Associations
Clinical conditions associated with subtalar instability include the fo...
Case
Ankle osteoarthritis
Published
19 Mar 2021
83% complete
MRI
Article
Anterior calcaneal process fracture
Anterior calcaneal process fractures are often missed fractures of the calcaneus (up to 88% are not reported on radiographic examination of the ankle) 1 leading to non-union of bone fragments, unrecognised associated ligamentous injuries, and persistent ankle or foot pain.
Epidemiology
Anterio...
Article
Spring ligament complex injury
Spring ligament complex injuries or calcaneonavicular ligament injuries refer to stretching sprains, tears, or ruptures of the plantar calcaneonavicular ligament complex and can affect one or more of the three portions.
Epidemiology
Spring ligament complex injuries are most commonly associated...
Article
Accessory muscles of the ankle
Accessory muscles of the ankle are muscular anatomical variants that are usually asymptomatic but rarely cause symptoms or might be encountered on imaging studies.
The following accessory muscles around the ankle have been described 1-4:
posteromedial/flexor compartment
accessory flexor digit...
Article
Tibioastragalus anticus of Gruber muscle
The tibioastragalus anticus of Gruber (TAAG) muscle or anterior tibiotalus muscle is a rare accessory muscle of the ankle and an anatomical variant.
Summary
origin: lateral tibial surface and the interosseous membrane of the distal third of the lower leg
insertion: anterior superolateral neck...
Article
Peroneocalcaneus internus muscle
The peroneocalcaneus internus muscle, also known as fibulocalcaneus internus muscle of MacAlister, is a rare accessory muscle of the ankle and an anatomical variant with an estimated prevalence of about 1%. It is often bilateral if present.
Summary
origin: the medial surface of the distal...
Article
Tibiocalcaneus internus muscle
The tibiocalcaneus internus muscle is a rare accessory muscle of the ankle and an anatomical variant with an unknown prevalence.
Summary
origin: medial crest of the lower third of the tibia
insertion: medial surface of the calcaneus approximately 1-2 cm anterior to the Achilles tendon
Gross ...
Article
Anterior fibulocalcaneus muscle
The anterior fibulocalcaneus muscle is a rare accessory muscle of the ankle and an anatomical variant.
Summary
origin: the proximal third of the fibula, peroneus tertius muscle fascia, anterior crural intermuscular septum
insertion: lateral calcaneus anterosuperior to the peroneal tubercle ju...
Article
Deep peroneal nerve entrapment
Deep peroneal nerve entrapment or compression syndrome anterior is a nerve compression syndrome of the deep peroneal nerve and might occur within the anterior tarsal tunnel beneath the inferior extensor retinaculum as anterior tarsal tunnel syndrome.
Epidemiology
Deep peroneal nerve entrapment...
Article
Anterior tarsal tunnel
The anterior tarsal tunnel is a fibro-osseous canal found in the anterior aspect of the ankle.
Gross anatomy
Boundaries
The anterior tarsal tunnel is beneath the inferior extensor retinaculum of the foot and bordered by the following structures 1,2:
roof: inferior extensor retinaculum
media...
Case
Rheumatoid nodules
Published
14 Sep 2021
92% complete
MRI
Diagram
Article
Talar shift
Talar shift is a concept, sign and/or measurement describing a displacement of the talus in relation to the articular surface of the distal tibia and the malleolar end segment. The direction of the talar shift is further described in the medical literature and lateral talar shift receives the mo...
Article
Tibiotalar angle
The tibiotalar angle is between the anatomic axis of the tibia and the superior articular surface of the talar dome. Differently from the talar tilt, the tibiotalar angle uses the tibial longitudinal axis instead of the distal articular surface as a tibial reference point.
Usage
The tibiotalar...
Case
Lateral malleolus fracture - Weber type C
Published
04 Apr 2022
94% complete
X-ray
Case
Lateral malleolus fracture - Weber type C
Published
13 Apr 2022
91% complete
X-ray
Case
Osteochondritis dissecans of the talus
Published
02 May 2022
80% complete
CT
Case
Lateral malleolus fracture - Weber type C
Published
08 Jul 2022
94% complete
X-ray
Case
Trimalleolar ankle fracture
Published
26 Jul 2022
91% complete
X-ray
Case
Ankle Charcot neuroarthropathy
Published
23 Feb 2023
79% complete
X-ray