Talus anatomy and body fractures Flashcards
How much is the talus covered in articular cartilage ?
GREATER THAN HALF
Does the talus have any muscle or ligament attachments?
No
Name the 3 main blood supply to the talus?
POSTERIOR TIBIAL ARTERY
DORSALIS PEDIS ARTERY
PERFORATING PERONEAL ARTERY
What supplies the TALAR BODY?
ARTERY OF TARSAL CANAL from POST. TIBIAL ARTERY
DELTOID ARTERY also comes off post tiibial
What supplies the Talar Head and Neck?
DORSALIS PEDIS
ARTERY OF TARSAL SINUS- from the PERFORATING PERONEAL ARTERY
What landmark determines a talar body fracture?
POSTERIOR to the LATERAL PROCESS
What joints does a talar body fracture involve ?
SUBTALAR
TIBIOTALAR
Describes the types of talar body fractures?
LATERAL PROCESS
POSTERIOR PROCESS
TALAR HEAD
TALAR BODY
What xrays views are helpful in identification of the fracture?
AP and LATERAL
CANALe view- MAX EQUNIUS, 15 DEGREES PRONATED, XRAYS 75 DEGREES CEPHALD OFF HORIZONTAL
What is the tx of undisplaced talar body fractures ? What is the criteria of undisplacement?
SLC 6 weeks
less than 2mm displaced
What is the TX of displaced talar body fractures? What is the criteria of displacement?
Surgery- ORIF/ K wires
if displacement >2mm
Can excise comminuted peices of post process/ lat process
What approaches would be made for a lat process fracture orif?
LATERAL
What approaches would be made for a post process fracture orif?
POSTERIOLATERAL
What approaches would be made for a talar body fracture orif?
dual incision MEDIAL AND LATERAL
What are the complication of the fracture?
AVN - diagnosed by SCLEROSIS ON XRAY
TALONAVICULAR ARTHRITIS