Metacarpus/ Metatarsus Flashcards
How many levels and zones are there in the metatarsus?
8 levels 4 zones (level 1 zone 1 is proximal between the tuber calcis and the TMTj)
What occurs at level 4 (2B)
The SL branche have began to devide btu have not devided.
What is the difference between level 5 (3A) and level 6 (3B)?
The SL branches are just further appart
Whats occurs at level 7 (3C)?
Level of the PAL
At zone 2a/b is the SDFT thicker laterally or meidally?
Medially
How does the SDFT compare in echogenicity with the DDFT and ALDDFT?
Slightly less echogenic
What tendon layer is missing within tendon sheaths?
Paratenon
Why is the term tendonitis/ desmitis not the best to use?
As inflammation is not always a major pathophysiological component of the condition, tendinopathy/desmopathy is more appropriate.
Where are SDFT lesions most common?
Mid metacarpal region
What change in CSA of the SDFT is considered significant which comparing with the contralateral limb?
>20%
What is causing the scattered hyperechoic foci within the SDFT?
With no alteration in longitudinal fibre pattern this is suggetive of age related degeneration which can be normal.
How frequently should teondon inurys be re-examined?
q3months
What change in CSA at re-examination is indicative of reinjury
increase byt 10%
At what stage is doplier sign expected during tendon healing?
3-6months
Interval between injury and return to training for racehorses is what?
9-18 months (but complete healing histologically takes 15-18months).
What occurs with a bandage bow?
contusion and bleeding occur deeper, at the tendon interface. The effects of local trauma can vary from localized subcutaneous or peritendinous edema with no evidence of intratendi- nous damage through localized hypoechoic/anechoic lesions on the palmar surface of the tendon
Paratenon typically measures?
1-2mm
A curb is typically casued by what injury?
has long been associated with injury to the long plantar ligament of the tarsus (A; arrows). (B), (C) This is in fact extremely rare and curb is most often caused by subcutaneous and peritendinous thickening (yellow arrows) and/or injury to the SDFT.
One of the most sensitive indicators of suspensory branch desmitis is?
periligamenous fibrosis
Time for SL injuries to heal is usually shorter or longer tna SDFT?
Shorter (6-9m typically)
