JVD 2020 #2 Standing Arthroscopic Treatment of Temporomandibular Joint Sepsis in a Horse; Elzer Flashcards Preview

JVD 2019-2021 > JVD 2020 #2 Standing Arthroscopic Treatment of Temporomandibular Joint Sepsis in a Horse; Elzer > Flashcards

Flashcards in JVD 2020 #2 Standing Arthroscopic Treatment of Temporomandibular Joint Sepsis in a Horse; Elzer Deck (4)
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1
Q

Describe the equine TMJ

A

Diarthrodial articulation between the condylar process of the mandible and zygomatic process of the squamous temporal bone.
A well-developed fibrocartilageous disc separates the joint into dorsal & ventral compartments that normally do not communicate.
The caudolateral & rostrolateral synovial pouches of the dorsal compartment provide access for arthrocentesis/scopy

2
Q

What are the clinically relevant anatomic structures in close proximity to the equine TMJ?

A

parotid gland
transverse facial artery, vein & facial nerve
maxillary artery & vein
temporohyoid joint
lateral aspect of the gutteral pouch
external acoustic meatus
tympanic part of temporal bone
and petrotympanic fissure linking the TMJ and middle ear

3
Q

What concurrent conditions were present for the horse with right TMJ sepsis?

A

otitis media
temporohyoid osteoarthropathy (THO)
(suspect due to close anatomic proximity)

4
Q

DV radiograph showing thickening of the R stylohyoid bone (white arrow) and temporohyoid articulation (arrow head)

A

DV radiograph showing thickening of the R stylohyoid bone (white arrow) and temporohyoid articulation (arrow head)

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