DI Flashcards
What is the most common location in the equine tarsus for osteochondrosis to occur?
Distal Intermediate Ridge of the tibia
Which phrase most suitably completes the following phrase: Retained cartilage cores…
Typically occur in the distal ulnar metaphysis, may be incidental and sometimes occur with ocular chondrodysplasia of Labs
Osteochondrosis in dogs is most often seen in the following site:
Caudal aspect of the proximal humeral head
What is the most likely cause of the unilateral right hip lameness in this 10 month old Chihuahua?
Legg-Calves-Perths Disease
Complete the next sentence with its MOST correct answer. Enthesophytes form at:
the entheses of joint capsules, tendons and ligaments where their Sharpey’s fibres implant
Radiographic signs of increased synovial volume will usually be seen in which of the following?
Ruptured cruciate ligament
What is spondylosis deformans?
A disease of the entheses of the intervertebral disc
Which intervertebral disc condition would be most likely correctly identified on a survey radiograph of the
spine?
Type II prolapse with a mineralised dorsal annulus
a) What is lumbosacral stenosis:
b) What regarding it is true?
Narrowing of the spinal canal in the lumbar region
Part of the cauda equina syndrome
What is the distinguishing radiographic feature of C6 in mammals?
Prominent transverse process
Which 3 standard radiographic views are important for the evaluation of the equine navicular bone?
LM
DPrPaDiO (upright with grid)
PaPrPADiO (skyline of flexor surface)
What central X-ray beam angle is required for the high coronary route of the navicular bone with the animal
standing on the image receptor?
45 degrees to the ground with 90 degrees to the foot wall
Which radiographic view of the navicular bone gives the best images to evaluate the flexor surface of the
navicular bone and its cortico-medullary distinction?
PaPrPaDiO
In racing horses with acute lameness localised to the fetlock joint, which of the following lesions requires
excellent radiographs to allow the lesion being seen?
Sagittal fracture of the distal condyle of the metacarpal metatarsal bones
Osteochondral fragmentation (chip fracture) formation is most likely to involve:
The dorsal distal aspect of the radius
dorsoproximal and dorsodistal aspects of the radiocarpal bone
dorsoproximal and dorsodistal aspects of the intermediate carpal bone
and dorsoproximal aspect of the third carpal bone
Which is the most frequent site of osteochondritis dessicans in the stifle?
The lateral trochlear ridge of the femur
Bilaterally symmetric radiolucent regions in the toe margin of P3 in the horse, are most likely caused by:
Bilateral normal crenae marginalis
Osteochondrosis of the metacarpophalangeal (MCP) or metatarsophalangeal (MTP) joint is diagnosed most
frequently in which structure?
Subchondral region of MC/MT 3
Splint disease in the horse is:
Injury to interosseous ligament
Separation of proximal sesamoid bone fractures in horses is indirect evidence of disruption of the:
Suspensory apparatus
Which of the following is/are the most common site/s of degenerative joint disease in the tarsus?
Tarsometatarsal joint
Distal intertarsal joint
After a nail puncture wound to the navicular bursa, if initial radiographs are inconclusive, follow-up
radiographs should be taken when?
within 3-12 weeks or earlier
The anticlinal vertebral body in the dog is:
T11
The radiolucent line that surrounds the adult tooth is the
Peridontal membrane
Which would be most likely correctly identified on a survey radiograph of the spine?
Type 2 prolapse with mineralised dorsal annulus
List five (5) radiographic signs of degenerative joint disease:
- Synovial effusion
- Initial widening, then thinning, of the radiolucent joint space
- Perichondral enthesophyte formation of non-weight-bearing surfaces
- Increased subchondral bone opacity
- Remodelling of subchondral bone
- Mineralisation of intra-articular and periarticular soft tissues
- Subchondral cyst formation (rare)
- Subluxation (of the coxofemoral joint)
What are the roentgen signs:
Size
Shape
Location
Margination
Number
Opacity
Function
Measurements of hip dysplasia:
Penn hip (destraction index)
Norberg angle
Aggressiveness determined by presence of one or more of the following:
Location
Periosteal reaction
Cortical destruction
Pattern of bone destruction
Zone of transition
Rate of change
What is the distinguishing radiographic feature of C6 in mammals?
Extended plate of transverse process
malunion fracture that bends ‘S’ the bone cranially and caudally is (a):
malunion fracture that bends ‘S’ the bone laterally and medially is (b):
a) recurvatum
b) translational
Most common OCD lesion in a horse:
lateral trochlea ridge of femur
