Ligaments of the Joints of the foot Flashcards
Encloses the posterior talocalcaneal articular surface of the talus and the posterior facet of the calcaneus
-Reinforced anteriorly by the interosseous talocalcaneal ligament
Posterior talocalcaneal capsular ligament
Attaches to the lateral surface of the neck of the talus and the sinus tarsi of the calcaneus
Anterior talocalcaneal ligament (cervical)
Attaches to the lateral tubercle on the posterior surface of the body of the talus and the superior surface of the calcaneus
Posterior talocalcaneal ligament
Attaches to the lateral process on the lateral surface of the body of the talus and the lateral surface of the calcaneus
Lateral talocalcaneal ligament
Attaches to the medial tubercle on the posterior surface of the body of the talus and the posterior aspect of the sustentaculum tali
Medial talocalcaneal ligament
Attaches to the sulcus tali and the calcaneal sulcus (occupies the tarsal canal)
limiting factor in subtalar joint motion
interosseous talocalcaneal ligament
Encloses the anterior subtalar joint, talonavicular joint, and the articulation of the head of the talus with the spring ligament.
Talocalcaneonavicular capsular ligament
-Capsular ligament attaching to the dorsal surface of the neck of the talus and the dorsum of the navicular
Dorsal talonavicular ligament
- Attaches tot he sinus tarsi of the calcaneus and divides into two portions as it courses anteriorly
- Forms a strong bond between rear foot and midfoot
Bifurfacte ligament
- calcaneonavicular (medial) portion attaches to the dorsolateral aspect of the navicular
- calcaneocuboid (lateral) portion attaches to the dorsomedial aspect of the cuboid
What is the soft tissue structures that occupy the sinus tarsi collectively called?
Honke’s Tonsil
-Attaches to the anterior margin of the sustentaculum tali and the plantar surface of the navicular
- superior surface contains fibrocartilage for articulation with the head of the talus
- supports the head of the talus between the sustentaculum tali and the plantar surface of the navicular
- Only ligament in the foot with elastic fibers
Spring Ligament
-Encloses the articular surfaces of the calcaneus and cuboid
Calcaneocuboid capsular ligament
Capsular ligament attaching to the sinus tarsi of the calcaneus and the dorsum of the cuboid
Dorsal calcaneocuboid ligament
-Attaches to the tubercle and transverse groove on the plantar surface of the calcaneus and the plantar surface of the cuboid posterior to the fibular ridge
short plantar ligament
Attaches to the plantar surface of the calcaneus between the tuberosity and the tubercle and distally it divides into superficial and deep fibers.
- Deep attach to fibular ridge and tuberosity of the cuboid
- Superficial fibers attach to the plantar surface of the bases of the second, third, fourth, and fifth
-superficial convert the fibular groove into a canal for passage of the tendon of fib longus
Long plantar ligament
What are the ligaments of the cuboideonavicular joint?>
Dorsal, plantar, interosseous cuboideonavicular ligament
There are three joints between the cuneiforms and navicular. What are the ligaments between each joint?
Dorsal and Plantar cuneonavicular ligament
What are the ligaments of the intercuneiform joints?
Dorsal, plantar, interosseous intercuneiform ligaments
What are the ligaments of the cuneocuboid joint?
Dorsal, plantar, interosseous cuneocuboid ligament.
How are the heads of the metatarsals connected to each other?
They don’t articulate with one another but are connected at the plantar plates by the deep transverse metatarsal ligament.
What connects the superficial slips of the central portion of the plantar aponeurosis and helps maintain the position of fat pads at the level of the MTP’s?
Superficial transverse metatarsal ligament
Attaches to the anatomical neck of the metatarsal and the edges of the base of the proximal phalanx.
It has a loose attachment to the metatarsal head which allows for dorsiflexion and plantarflexion.
Metatarsophalangeal capsular ligament
- Capsular ligament that is a fibrocartilaginous thickening of the plantar portion of the capsule
- Attaches loosely to the head of a metatarsal and firmly to the base of a proximal phalanx.
Metatarsophalangeal plantar plate
Cord-like capsular ligaments that attach to the tubercles on either side of the head of the metatarsal and the tubercles on the base of a proximal phalanx.
Collateral Metatarsophalangeal Ligaments
Triangular-shaped capsular ligaments that attach to the tubercles on either side of the head of a metatarsal and the sides of the plantar plate.
Metatarsophalangeal suspensory ligaments
The sesamoids divide the plantar plate of the hallux into what ligamentous regions?
- Medial and lateral Metatarsosesamoid ligaments
- Medial and lateral phalangeosesamoid ligaments
- intersesamoid ligament
What forms the sesamoid apparatus?
- Tendon of FHB
- Tendon of ABductor hallucis
- Conjoined tendon of adductor hallucis
- Sesamoids
- Plantar plate
What are the ligaments of the interphalangeal joints?
Interphalangeal capsular ligament
Interphalangeal plantar plate
2x collateral interphalangeal ligaments
What ligaments and muscles are supported by the transverse arch?
Interosseous intercuneiform, cuneocuboid, tarsometatarsal, and intermetatarsal ligament
- ADductor hallucis
- Fibularis longus
- plantar component of tibialis posterior
What is the ligamentous, fibrous, and muscular support of the longitudinal arch?
- Spring ligament (medial side of arch)
- Short plantar ligament (lateral side)
- Long plantar ligament (lateral side)
- Central portion of plantar aponeurosis (both)
- Tibialis posterior (medial)
- FHL (medial)
- FDL (both)
