Hip Flashcards
Abnormal development of the coxofemoral joint is defined as ____ _____
hip dysplasia
hip dyspasia leads to ____ ____ in young dogs
joint laxity
Laxity and malarticulation leads to ____ as the dog matures
DJD
How does this happen often with young large breed puppies
disproportionately rapid skeletal growth and relatively delayed muscle growth leading to joint instability
_____ changes result from failure of soft tissue to maintain congruity between Articular surfaces of the ____ head in the ______
Bone femoral acetabulum
How can you delay signs with hip displasia predisposed dogs
if congruty is maintained as the acetabulum ossifes when they are growing
Dogs with greater ________ ______ are more likely to have normal hips
pelvic mass
Incidence of hip dys. is higher in _____ breed dogs
large (labs GSD)
When hip dysplasia is developing young animals show ____ ____ while order more chronic pateints present with ___/____
young-joint laxity older DHD/osteoarthritis
True or False: males or females get HD more
false both equal
Bunny hopping difficulty rising nd exercise intolerance with intermitten lameness tells you what
probably HD
60% of the weight placed on _____ 40% on _____
60-forelimb 40-hindlimb
Early or late phase of HD lame, pain on extension, bunny hopping, straight stifles, hea and neck extended, narrow base rear wide front muscle atrophy reluxatnat to rise restricted extension, muscle atropthy pin on extnesion and creptiation
- Top early phase
- bottom late phase
______ ______: uses to assess joint laxity in immature dogs with early signs of HD. dorsal recumbency with femurs at 90 degrees if you head the head return its positive, done before rads while sedated
ortolani sign
The greater the angle of _____ the greater the degree of _____ ____
-reduction joint laxity
In the early acute form animals typically take weight off rear limbs by doing this?
shiting weight forward onto front limbs
will we see muscle atrophy early on with HD
no its chronic over time
What are the 2 DX imaging tools we can use to assess HD
- Normal rads VD Penn hip distraction or stress radiography
What do we see early on with HD/ what about late stage -Increased _____ space -Flattened ______ -_____ valga -_____phytes
joint flatt acetabulum coxa valga osteophytes late stage above + DJD
True or False we can rely on rads to tell us how bad the CS are
false do not always correlate
How do we med. manage HD
reduce food intake is number one lower fat and protein to keep dog lean (swimming) -avoid pain manage the exercise and allev with NSAIDS if you need to (long slow walks) -improve strength and joint motion growth supple with CA promotes expression of faulty genes so avoid
How do we med. manage HD
reduce food intake is number one lower fat and protein to keep dog lean (swimming) -avoid pain manage the exercise and allev with NSAIDS if you need to (long slow walks) -improve strength and joint motion (physical herapy) acupuncture growth supple with CA promotes expression of faulty genes so avoid
What age of HD predisposed dogs do we consider for sx and what is the procedure called, does it compl eliminate the need for future sx, what does it do
young puppies less than 20 weeks does not preclude further sx treatment juvenile pubic symphysiodesis-alters growth of pelvis and degree of ventroversion of acetabulum low compli rate
What age of HD predisposed dogs do we consider for sx and what is the procedure called, does it compl eliminate the need for future sx, what does it do
young puppies less than 20 weeks does not preclude further sx treatment juvenile pubic symphysiodesis-alters growth of pelvis and degree of ventroversion of acetabulum low compli rate
When is TPO considered for HD,
immature dogs 5-8 months of age without evid of DJD osteotomy of pubis ischium and ilium, ili
TPO improves _____ coverage of the head of the femur by _____ rotation and _____ of acetabulum
dorsal coverage axial rotation lateralization of acetabulum
