Key issues pres 5&6
- 1. Week 3 Key Issues 2&3 Bouncer and Flash Groups 5&6
- 2. Bouncer the Labrador Bouncer is chronically lame (approximately 3/5) on the right fore, and is diagnosed with elbow dysplasia and secondary degenerative joint disease. Right elbow- Abnormal Left Elbow-Normal
- 3. What do you need to know about the anatomy of the affected region? Identify normal anatomy of the elbow joint visible on radiographs: humerus, head of radius + trochlear notch of ulna, anconeal process of ulna engaged within olecranon/ulnar fossa of humerus, radiolucent joint space, physis.
- 4. osteophytes Bouncers Right Elbow osteophytes How can you link the underlying pathological processes to the resulting clinical signs and changes shown? Lameness - joint instability (osetophyte formation an attempt to stabilize the joint) Pain - inflamed nerve endings in exposed subchondral bone DJD- arthritic changes accelerated by boney/cartilaginous fragments in the joint space serving as constant irritants
- 5. Flash the Horse Flash is acutely lame on the left fore (3/5), and is diagnosed with a superficial digital flexor tendon (SDFT) lesion based on ultrasound and nerve blocks SDFT DDFT Suspensory Ligament lesion
- 6. SDFT Accessory Check Ligament DDFT Suspensory Ligament Image 1 What do you need to know about the anatomy of the affected region? Normal passage and appearance of distal limb structures How distal limb structures appear on ultrasound: Long axis: even, linear appearance. Short axis: speckled appearance
- 7. SDFT DDFT lesion Suspensory Ligament How can you link the underlying pathological processes to the resulting clinical signs and changes shown? Lesions preceded by microdamage due to stress and heat.
Editor's Notes
- #5: periarticular osteophytes = multiple bony outgrowths/spurs -Initiated by mechanical instability of the joint and/or inflammatory cytokines -can form within joint cavity -Often secondary synovial inflammation and hyperplasia