7 - Hip Disorders Flashcards
(49 cards)
What is hip dysplasia
Abnormal development of the hip joint
Hip dysplasia is initially
Laxity of the hip join that ultimately results in joint instability and secondary OA
What % is a genetic component of hip dysplasia
20 - 35%
Prevalence of hip dysplasia is approximately
3.5%
Why is hip dysplasia prevalence artificially low
May not submit radiographs for observation when the dog obviously has hip dysplasia
Breeds with highest incidence of hip dysplasia
Newfoundland, Saint Bernard, Old ENglish sheep dog, GS,
Neutered dogs have what odds ration for hip dysplasia
1.2
What should you do in regard for neutering to help delay progression of OA - hip dysplasia
Delay neutering until sexual maturity
What plays a major role in expression of hip dysplasia in young developing dogs
Diet
Repeated subluxation may result in
Acetabular micro fractures that contribute to pain
The hips develop instability between what age
4 and 12 months
Bunny hopping gait is a key early sign of
Hip dysplasia
Evaluation of hip dysplasia means pain with
Extension of the hip joint
Diagnosis of hip dysplasia may be made by palpation of
Joint laxity - Ortolani sign
With progression of subluxation of the hips, what might cause the pain to decrease
Periarticular fibrosis improves the joint stability
What is the classic method of assessing joint laxity in young dogs
Ortolani sign
What is the process of the Ortolani sign
Adduct , push dorsal, abduct, feel pop while your Thumb is on the greater trochanter
Barden’s maneuver
Direct lateral displacement of the femoral head from teh acetabulum
Radiograph for hip dysplasia primarily concerned with
VD view
Penn Hip
V - D radiograph with distraction to calculate distraction index
What is the minimum age for final grading of OFA view
2 year
OFA views are rated as
Excellent, good, fair, borderline, dysplasia
Which hip dysplasia test can be diagnostic at earlier ages
Penn Hip or Distraction Index
What is an abnormal distraction index
Greater than 3.5
