Ch 6 Lower Limb Flashcards
How many bones in the foot?
What is the breakdown of these bones?
26 total
14 Phalanges
5 metatarsals
7 tarsals
How many phalanges in each toe digit?
3 in toes 2-5
2 in first toe
distal, middle, and proximal
The 3 parts of the of the metatarsals are?
Head (most distal)
body/shaft (middle)
Base (most proximal)
How many total tarsal bones?
7 tarsal bones in the foot
MTP stands for?
What is it?
Metatarsophalangeal joint
the head of the metatarsal is the MTP joint articulates with proximal phalange
TMT stands for?
is what?
Tarsometatarsal joint
joint located at in between the base of metatarsal and the tarsals
Sesamoid bones are?
small detached bones
CR for AP and oblique foot?
Base of 3rd metatarsal
10 degrees posteriorly (supine)
15 degrees posteriorly (standing)
The sesamoid bones in the foot location?
plantar surface first metatarsal (head)
2 sesamoid bones name?
Which is medial, which is lateral?
Tibial is medial sesamoid bone
Fibular is lateral sesamoid bone
Mnemonic for Tarsals?
Come (calcaneus)
To (talus)
Colorado (cuboid)
Next (Navicular)
3 Christmases (3 Cuneiforms)
What is the Sinus tarsi?
The space in between the calcaneus and talus articulation
Calcaneus articulates anteriorly with:
Superiorly:
Cuboid
Talus
What is the largest Tarsal bone?
Calcaneus
Deep depression between posterior and middle articular facets are:
Calcaneal sulcus
What are the Tarsals from proximal to distal?
Calcaneus
Talus
Cuboid-Navicular
3 Cuneiforms
What are the three facets of the calcaneus in order?
- posterior facet (articular process)
- middle facet (articular surface)
- Anterior facet (articular surface)
What does the Navicular tarsal articulate with? (5)
Proximally (Posterior): talus (1)
Laterally: Cuboid (1)
Distally (Anteriorly): 3 Cuneiforms (3)
What does the Talus articulate with? (4)
superiorly: Tibia and Fibula (2)
Inferiorly: Calcaneus (1)
Distally (anteriorly): Navicular (1)
The superior calcaneus articulation with the Talus forms:
Subtalar joint
What does the Calcaneus articulate with? (2)
Anteriorly: Cuboid (1)
Superiorly: Talus (1)
What does the Cuboid articulate with? (5)
Proximally: calcaneus (1)
Medially: navicular & lateral cuneiform (2)
Distally: Fourth and fifth metatarsal (2)
What does the medial cuneiform articulate with? (4)
Proximally: Navicular (1)
Distally: First and second metatarsals (2)
Laterally: intermediate cuneiform (1)
What does the intermediate cuneiform articulate with? (4)
Proximally: Navicular (1)
Distally: Second metatarsal (1)
Laterally: Lateral cuneiform (1)
Medially: Medial cuneiform (1)
What does lateral cuneiform articulate with? (6)
Distally: 2nd, 3rd, 4th metatarsals (3)
Proximally: Navicular (1)
Laterally: Cuboid (1)
Medially: intermediate cuneiform (1)
How many arches are there in the foot?
What are they?
2 arches
Transverse: from lateral to medial
longitudinal: From Calcaneus to metatarsals
Medial malleolus is more ____ & ____ than the lateral malleolus
Anterior
Superior
What kind of joint is the ankle?
Sellar or saddle joint
Inversion:
AKA?
Inward turning/bending of the ankle
aka Varus
Eversion:
AKA?
outward turning/bending of ankle
aka valgus
Dorsiflexion:
anterior side of the foot (dorsal side) is flexed upwards
(tippy toes)
Plantar flexion:
posterior side of the foot (plantar side) is flexed downwards
What type of joints are the interphalangeal joints?
ginglymus or hinge
What kind of joints are the Metatarsophalangeal joints?
ellipsoidal or condyloid (modified)
What kind of joints are the Tarsometatarsal joints:
plane or gliding
What kind of joints are the Intertarsal joint:
(tarsals)
plane or gliding
What kind of joints are the ankle joint:
Saddle or sellar
What kind of joints are the knee joints:
AKA Femorotibial
Bicondylar
What kind of joints are the Knee joints:
AKA patellofemoral
saddle or sellar
What kind of joints are the proximal tibiofibular joint:
plane or gliding
Distal tibiofibular
Classification:
Mobility type:
Fibrous
Amphiarthrodial (slightly moveable)
syndesmosis Type
AP foot is what kind of projection?
Dorsoplantar (DP)
PA foot is what kind of projection?
Plantodorsal
Pathology:
Gout
form of arthritis
excessive blood in joints
Starts in first MTP
Pathology:
Bone Cysts
bone lesions filled with clear fluid
common in pediatric patients in the knee
Pathology:
Osgood-Schlatter disease
bone/cartilage inflammation of the anterior proximal tuberosity
common among boys 10-15
Pathology:
Paget Disease
disrupts new bone growth
very dense and soft bone
Pathology:
Don Juan
Pathology:
Reiter syndrome
erosion of the Achilles tendon of the posterosuperior calcaneus
Pathology: