S3_L3: Kinesiology of the Ankle and Foot Flashcards
Determine the corresponding descriptions of the motions of the foot
- Varus movement of calcaneus
- Distal aspect of a segment moves towards the midline of the foot
- May also be referred to as extension
- Valgus movement of calcaneus
- Distal aspect of a segment moves away from the midline of the foot
- May also be referred to as flexion
A. Dorsiflexion
B. Plantarflexion
C. Inversion
D. Eversion
E. Abduction
F. Adduction
- C
- F
- A
- D
- E
- B
Determine the corresponding descriptions of the tibiofibular joints
- Syndesmosis type of joint
- Forgotten Joint
- Ankle is dependent of the stability of this joint
- Plane, Synovial joint
- Ankle is not dependent on the stability of this joint
A. Superior tibiofibular joint
B. Inferior tibiofibular joint
- B
- A
- B
- A
- A
Determine the corresponding motions occurring in NWB supination and pronation
- Calcaneal Eversion
- Calcaneal Plantarflexion
- Calcaneal Adduction
- Calcaneal Dorsiflexion
- Calcaneal Abduction
- Calcaneal Inversion
A. NWB Supination
B. NWB Pronation
- B
- A
- A
- B
- B
- A
Determine the corresponding motions occurring in WB supination and pronation
- Talar Adduction (IR)
- Talar Plantarflexion
- Talar Abduction (ER)
- Tibiofibular medial rotation (IR)
- Talar Dorsiflexion
- Tibiofibular lateral rotation (ER)
A. WB Supination
B. WB Pronation
- B
- B
- A
- B
- A
- A
Determine the corresponding descriptions of supination and pronation twists
- 4th & 5th ray: plantarflex
- Tarsometatarsal joint: eversion rotation of entire foot
- Hindfoot pronation
- Medial forefoot: lift
- 1st & 2nd ray: dorsiflex
- Lateral forefoot: press into ground
A. Supination twist
B. Pronation twist
- A
- B
- A
- B
- A
- B
Determine the corresponding descriptions of the talocrural ligaments: Lateral collateral ligament
- Stressed when the ankle is dorsiflexed and externally rotated
- Common MOI: excessive inversion with foot in neutral position or sometimes, minimal dorsiflexion
- Orientation of fibers are more spread out (anteriorly and horizontally)
- Can be tested using the anterior drawer test
A. Anterior Talofibular Ligament
B. Posterior Talofibular Ligament
C. Calcaneofibular ligament
- B
- C
- A
- A
Determine the corresponding descriptions of the talocrural collateral ligaments
- Also known as Deltoid Ligament
- Helps control inversion and/or supination of the ankle and talus
- Ligaments are thick and clumped together
- Helps control eversion and/or pronation of the ankle and talus
- More commonly injured
because it is thin and spread apart - Stronger and has a low frequency of injury
A. Lateral collateral ligament / LCL
B. Medial collateral ligament / MCL
- B
- A
- B
- B
- A
- B
Determine the corresponding descriptions of the lateral supports of the subtalar joint
- Strongest among the 4
- Part of the LCL
- Found between talus and calcaneus
- Provide lateral stabilization
- Lies medially and follows an oblique path
A. Interosseous talocalcaneal ligament
B. Lateral talocalcaneal ligament
C. Calcaneofibular ligament
D. Cervical ligament
- D
- C
- A
- B
- A
Determine the corresponding descriptions of the ligaments supporting the calcaneocuboid joint
- Dorsal support
- Plantar support, supports lateral longitudinal arch
- Lateral support
- Plantar support inferiorly
A. Plantar calcaneocuboid / short plantar ligament
B. Bifurcate / Calcaneocuboid ligament
C. Long plantar ligaments
D. Dorsal calcaneocuboid ligament
- D
- C
- B
- A
Determine the corresponding descriptions / keystones of the arches of the foot
- Keystone: middle / intermediate cuneiform
- Largest arch
- Keystone: cuboid
- Keystone: talus (navicular / scaphoid)
A. Medial longitudinal arch
B. Lateral longitudinal arch
C. Transverse arch
- C
- A
- B
- A
Determine the corresponding passive supports of the arches of the foot
- Long and short plantar ligaments
- Plantar aponeurosis
- Deep transverse metatarsal ligaments
- Spring ligament, deltoid ligament
- Interosseous talocalcaneal ligament
A. Medial longitudinal arch
B. Lateral longitudinal arch
C. Transverse arch
- B
- A
- C
- A
- A
Determine the corresponding descriptions of the talocrural ligaments: Lateral collateral ligament
- Rarely torn and runs horizontally
- Can be tested using talar tilt test
- Weakest among the 3
- Runs vertically, located more laterally
- Stressed when the ankle is moved into greater degrees of plantar flexion, medial rotation, and inversion
A. Anterior Talofibular Ligament
B. Posterior Talofibular Ligament
C. Calcaneofibular ligament
- B
- C
- A
- C
- A
Determine the corresponding plane / axis of the motions of the foot
- Plane where Dorsiflexion occurs
- Axis for Plantarflexion
- Plane where Inversion occurs
- Axis for Eversion
- Plane where Abduction occurs
- Axis for Adduction
A. Vertical axis
B. Coronal axis
C. Anteroposterior axis
D. Sagittal plane
E. Frontal plane
F. Transverse plane
- D
- B
- E
- C
- F
- A
It is supports the head of the talus and talonavicular joint and acts as the main / most important passive stabilizer of the medial longitudinal arch. A triangular sheet of ligamentous connective tissue arising from the sustentaculum tali of the calcaneus and inserting on the inferior navicular bone.
Spring Ligament / Plantar Calcaneonavicular Ligament
An increase in normal valgus angulation of the first metatarsophalangeal joint is referred to as ___.
Hallux valgus
Hallux valgus may be associated with a varus angulation of the first metatarsal at the tarsometatarsal joint, known as ___.
Metatarsus varus
It is aka Invertor Par Excellence, the deepest muscle of the posterior compartment.
Tibialis posterior
The tendons of the peroneus longus and peroneus brevis are ___ to the axis of ankle plantarflexion and dorsiflexion.
Posterior
The tibialis posterior contracts (1)___ to control subtalar and transverse tarsal pronation and works (2)___ as the foot moves toward supination and plantarflexion.
- eccentrically
- concentrically
The tibialis posterior, flexor hallucis longus, and flexor digitorum longus all help protect the ___ aspect of the ankle.
Medial
The extensor digitorum brevis sends fibers to the medial four toes to aid in extension of toes. Its most medial fiber is also referred to as ___.
Extensor hallucis brevis
The dorsiflexor that also everts the foot
Peroneus tertius
TRUE OR FALSE: Flatfootedness can cause genu varum.
False, genu valgum
Determine the corresponding descriptions of these joints
- S shaped type of compound joint; transects the foot horizontally, dividing the hindfoot from the midfoot and forefoot
- Composite joint formed by three separate plane articulations
- Houses the proprioceptive center
- Generally considered to have a single oblique axis with one degree of freedom around which the motions of dorsiflexion / plantarflexion occur
- Motion of the talus and of the calcaneus on the relatively fixed naviculocuboid unit
- Has 2 DOF (dorsiflexion / plantarflexion & abduction / adduction)
A. Talocrural joint
B. Subtalar joint / Talocalcaneal joint
C. Transverse Tarsal / Midtarsal / Chopart’s / Surgeon’s joint
D. Tarsometatarsal Joint / Lisfranc’s joint
E. Metatarsophalangeal Joint (MTP)
- C
- B
- B
- A
- C
- E
The mobility role of the ankle mortise belongs primarily to the ___.
fibula
Limited extension ROM at the first metatarsophalangeal joint that interferes with the metatarsal break
Hallux rigidus
Characterized by excessive extension at MTP and flexion of both distal and proximal IP joints. It doesn’t influence the metatarsal break, however, it poses too much pressure on the metatarsal heads, resulting to skin breakdown.
Hammer toe
What are the Open- and Close-packed positions of the talocrural joint?
OPP: 10° plantarflexion, midway between inversion and eversion
CPP: Full dorsiflexion
Determine the corresponding descriptions of the anatomic configurations of the MTP joints
- Characterized by the first and second metatarsals being the same length, with the other remaining three progressively decreasing in length
- First metatarsal being longer than the second with the other remaining three progressively decreasing in length
- Second metatarsal is the longest then followed progressively by the first, third, fourth, and fifth
- Increased force through the second metatarsal, predisposing it to injury such as a stress fracture
A. Index plus/Egyptian Foot
B. Index minus/Morton’s Foot/Greek Foot
C. Index plus minus/Roman Foot
- C
- A
- B
- B
Determine the corresponding descriptions of the superficial plantarflexors
- Type 1 muscle fibers
- Double Jointed
- Weak plantarflexor of ankle
- Type 2 muscle fibers
- Influenced by knee position
A. Gastrocnemius
B. Soleus
C. Plantaris
- B
- A
- C
- A
- A