SA Musculoskeletal Conditions of the Stifle Flashcards
What is the most common signalment/clinical signs of stifle luxation?
Commoner in cats than dogs
Severe non-weightbearing lameness and stifle instability and crepitus
What is the treatment for stifle luxation?
Sequential repair/prosthetic replacement of individual ligaments
Where does stifle osteocondrosis occur?
Usually a lateraly condylar lesion
Which breeds and age usually present with stifle osteochondrosis?
Giant breeds
4-5 months
What is the most common cause of cranial cruciate ligament disease in dogs?
Degenerative of ligaments from an early age
Describe the pathogenesis of cranial cruciate ligament disease.
Hyperextension or increased internal rotation causes rupture
Ligament can be ruptured completely or partially
Meniscal cartilage damage is concurrent or subsequent
How does the gait change when an animals has cranial cruciate ligament disease?
Mild pelvic limb lameness
Circumduct the limb to minimise stifle flexion
List three tests you can perform in the diagnosis of cranial cruciate ligament disease.
Cranial Draw Test
Tibial Compression (thrust) Test
How does extraarticular surgical repair of the cranial cruciate ligament work?
Suture placed around the femorofabella ligament and through a bone tunnel in the tibial tuberosity
What is the average tibial plateau angle?
24 degrees
Which meniscus is more commonly torn is meniscal injuries?
Medial is more commonly torn
What is the main treatment of meniscal injuries?
Partial meniscectomy
What are the clinical signs of quadriceps contracture?
Hyperextended stifle, firm fibrous muscle
Reduced stifle flexion and circumducted gait
What is the pathogenesis of stifle luxation?
Abnormal conformation/soft tissue damage allows patella to displace out of the trochlear groove
How do medial and lateral luxation of the patella change the conformation?
Medial luxation - genu vara
Lateral luxation - genu valga
