Equine tendon and ligament disease Flashcards
2 types of tendon injury
‘Percutaneous’ - laceration/penetration
‘Subcutaneous’ - strain, displacement
Cause of over-strain injury - tendon
Sudden over-extension
Preceding tendon degeneration with superimposed sudden over-extension
tendon - History
Usually a preceding intense period of exercise
Signs can be delayed
tendon - Clinical examination
Lameness
Can be temporary
Lameness can be persistent for some tendon/ligament injuries
Metacarpophalangeal joint extension changes
Decr - Reduced weight-bearing + Fibrosed (stiff) tendon
Increased with severe - SDFT/SL injuries
Elevating toe
DDFT rupture
Some areas difficult to palpate
Proximal SL in H/L
Pastern
what to assess on palpation
Pain on palpation
Suppleness of tendons
Oedema
Superficial digital flexor tendinopathy
Initial lameness (variable)
Pain on palpation
‘Core’ lesion on ultrasound
Proximal suspensory desmitis - history
Lameness variable in degree
Acute or insidious onset
Proximal suspensory desmitis - clinical signs - conformation
Straight hock
overextending MTP joint
Proximal suspensory desmitis - clinical signs - lameness
Often lamer with the limb on the outside of a circle
Proximal MC/MT swelling - Variable, Medial palmar vein distension
Pain on palpation
Proximal suspensory desmitis - diagnosis
Diagnostic analgesia
imaging - Ultrasonography, Radiography, (Gamma scintigraphy, MRI)
Suspensory body and branch desmitis - ultrasonography
Branches need imaging from medial and lateral aspects Focal or generalised lesions Enlargement Periligamentar fibrosis very common Bilateral involvement common
Suspensory body and branch desmitis - radiography
Concurrent bony abnormalities