Ch.99/Ch.100 Tarsus, Tibia Flashcards
What fills the tibial crest
Peroneus Tertius
Long digital extensor tendon
What can be mistaken for fibular fractures
One of the Fibula’s many ossification centres
What are the 2 types of unstable tibia fractures
Proximal physeal fx
Diaphyseal fx
Long collateral lig, origins and insertions
O: Distal tibia
I: Prox metatarsus, talus, small tarsal bones
Short collateral lig origins and insertions
Has a superficial, middle and deep part
O: Med/Lat malleolus, cranial to o of long
I: Talus and calcaneus
Which collateral ligs are taut during flexion/extension and which are relaxed
Long - Taut in extension
Short - Taut in flexion
How many joints in the tarsus
- TC tarsocrural
- PIT proximal inter tarsal
- DIT distal intertarsal
- TMT tarsometatarsal
- TCa talocancaneal
TCa composed of how many facets
- Medial calcaneus and talus
- Angulated coracoid
- Lat calcaneus facing medially, medial talus facing laterally
Where does the lateral digital extensor tendon unite with the long digital extensor tendon
Just distal to the tarsal region.
Where do the peroneus tertius and tendon of the tibialis cranialis run
Parallel to the long digital extensor tendon
The tibias cranialis inserts where
Central, 3rd, 4th tarsal bones and proximal metatarsus
What forms the cranial part of the reciprocal apparatus
Fibularis tertius (Peronius tertius)
What forms the caudal part of the reciprocal apparatus
Grostrocnemius muscle and tendon
What is the most plantar tendinous structure at the level of the tuber calcanei
SDFT
Where is the intertendinous calcaneal bursa located
Btw SDFT and gastrocnemius tendon proximally
Btw SDFT and long plantar ligament distally
