Term
| Which radiographic views are most commonly used for visualizing the quine tarsus? |
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Definition
| -LM, DLPMO, DMPLO, DP, Skyline |
|
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Term
| What are the four joints of the equine tarsus? |
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Definition
-tarsocrural joint
-proximal intertarsal joint
-distal intertarsal joint
-tarsometatarsal joint |
|
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Term
| Which bones make up the proximal, middle, and distal row of the equine tarsus? |
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Definition
-Proximal row: talus, calcaneous
-Middle row: central tarsal bone
-Distal row: second, third, and fourth tarsal bone |
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Term
| What are the four common locations for osteochondrosis lesions in the equine tarsus? |
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Definition
-distal intermediate ridge of the tibia
-medial trochlear ridge of the talus
-lateral trochlear ridge of the talus
-medial melleolus |
|
|
Term
| What is the most common tarsal osteochondral esion? |
|
Definition
| -distal intermediate ridge of the tibia |
|
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Term
| What is the common name for DJD/OA on equine tarsus? Common locations? |
|
Definition
-Bone Spavin
-distal intertarsal joint, tarsometatarsal joint |
|
|
Term
| What radiographic findings are associated with DJD?OA of the equine tarsus? |
|
Definition
-osteophytes
-periosteal bone production
-subchondral bone sclerosis
-subchondral bone lysis (erosive change) |
|
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Term
| Which views are used to visualize the equine carpus? |
|
Definition
| -LM, DLPMO, DMPLO, DP, flexed lateral, skyline views |
|
|
Term
| Which three joints are part of the quine carpal joint? |
|
Definition
-antebraciocarpal jt
-intercarpal jt
-carpometacarpal jt |
|
|
Term
| What bones are a part of the proximal row of carpal bones? Distal row? |
|
Definition
-Proximal row: radial, intermediate, ulnar accessory carpals
-Distal row: C1, C2, C3, C4 |
|
|
Term
| What is the age of horse typically affected by physsitis? What is it? |
|
Definition
-4-12m (up to 2y in training)
-disruption of the endochondral ossification process |
|
|
Term
| What radiographic findings are associated with physistis? |
|
Definition
-wider physis with irregular margins due to remodeling of adjacent metaphysis
-physis may appear flared in severe cases due to periosteal new bone fomation
-often has soft tissue swelling |
|
|
Term
| What age group of horses is most commonly affected by incomplete ossification of carpal bones? |
|
Definition
| -premature or dusmature foals |
|
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Term
| What radiographic findings are common with incoplete ossificaiton of carpal bones? |
|
Definition
-carpal bones are small, rounded, and oddly shaped
-enlarged intercarpal joint spaces
-collapsed carpal bones may be present
-angular limb deformity a the level of the carpal bones is common |
|
|
Term
| Is Valgus or Vargus more common with angular limb deformities in horses? |
|
Definition
|
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Term
| Where are subchondral cyst-like lesions found in the equine carpus? |
|
Definition
| -carpal bones, distal radius, and proximal metacarpals |
|
|
Term
| What happens when subchondral cystl-like lesions communicate with the joint? |
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Definition
| -can be associated with lameness or result in an avulsion fragment |
|
|
Term
| What radiographic findings are associated with subchondral cyst like lesions in the equine carpus? |
|
Definition
-well circumscribed circular radiolucent lesion
-well defined short zone of sclerosis may surround the lesion |
|
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Term
| Which equine carpal locations are most oftenly involved with chip fractures? |
|
Definition
-dorsodistal radius
-dorsoproximal radial
-dorsoproximal intermediate
-dorsodistal radial
-dorsodistal intermediate |
|
|
Term
| In which radiographic view are chip fractures best visualized? Is it unilateral or bilateral? |
|
Definition
-flexed lateral
-bilateral |
|
|
Term
| Describe the radiographhic findings seen with chip fractures. |
|
Definition
-displaced small osseous fragment
-joint swelling
-lucent lesion/ margin o parent bone
-irregular or sclerotic subchondral bone
-concurrent osteophyte/ enthesophyte formation |
|
|
Term
|
Definition
| -extends from one articular surface to another in aproximal to distal direction |
|
|
Term
| What radiographic findings are associated with slab fractures? |
|
Definition
-third carpal bone
-other carpal can be affected
-may be displaced or nondisplaced
-may have concurrent comminution
-soft tissue swelling |
|
|
Term
| Which carpal bone is most commonly associated with slab fractures? |
|
Definition
|
|
Term
| What radiographic findings are associated with carpal DJD/OA? |
|
Definition
-periarticular osteophytes
-narrowed joint space
-subchondral bone sclerosis
-subchondral lucent lesions
-joint effusion |
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