Bone 3: developmental orthodontist disease Flashcards
Common developmental orthodox abnormalities seen in equine
- osteochondrosis -
a) osteochondritis dessicans
b) sub chondral bone cyst - physics = inflammation growth plate which leads to
a) angular limb deformities
b) flexural bone deformities where bone grows more rapidly than assoiated soft tissue)
Common developmental orthodox abnormalities seen in canine
Osteochondrosis
Ununited anconeal process?
Fragmented medial coronoid process – elbow extremely important in smalls, less so farm and equine
b) hypertrophic osteodystrophy
c) leg calve perthes
d) hip dysplasia
Common developmental orthodox abnormalities seen in bovine
- osteochondrosis (OCD)
2, Flexural deformaties e.g. angulair limb
Common developmental orthodox abnormalities seen in porcine
Osteochondrosis (OCD – voer production, grow too fast)
Pigs – bad welfare, growth, intensive, not appropriate exercise
Lame young pigs – gees, diet, hormones, etc = OCD
Herd health
Causes of subchondral cyst
appearance on radiograph
2 causes
- abnormal endochondral ossification - retention cartilage, collapse
- trauma - articular cartilagee and SC bone, pressure from synovial fluid
area of radiolucency within bone as fluid filled
What is physitis?
enlargement of physics (growth plate)
typically in young animals due to:
- inflammation
- disruption of endrochondral ossification at physis
Clinical sings physics and treatment
CS = lameness, stiff gait
self limiting
rest, maybe NSAIDs
What orthodontist disease typically affects large breed dog 2-8 months
Hypertrophic osteodystrophy
Pathogenesis of hypertrophic osteodystrophy
Idiopathic aetiology, assume infection (bac or viral), over supplemnetation or vascular abnormalities
pathogenesis = necrosis of capillary loops of cartilage of metaphyseal physis growth plate long bone.
Lame and sore due to inflammation
get an abnormal cuff of metaplastic cartilage and bone
Clinical signs dog with hypertrophic osteodystrophy
lame, fever, lethargic, painful
primarily long bones distal aspect as pathogenesis is necrosis of cartilage in metaphyseal physis