Pathology Of The Skeletal System

Question 1

Bone healing what are the three phases

Answer 1

Reactive phase- inflammation and hematoma formation
Reparitive phase - callus formation
Remodeling phase.

Question 2

Rickets ?

Answer 2

Softening of bones in young
Vitamins D or phosphorus deficiency
Defective calcification of osteoid and endochondral calcification
Wide growth plates .

Question 3

Marie’s disease aka hypertrophic osteopathy

Answer 3

Diffuse periosteal new bone formation along the diaphyses and metaphyses
With chronic inflammation and neoplasia in thoracic cavity
Dogs- spirocercosis
Metastatic osteosarcoma

Question 4

Developmental -osteogenesis imperfecta

Answer 4

Defective synthesis if type 1 collagen

Fragile bones in calves

Question 5

Chondrodysplasia also a congenital anomaly

Answer 5

Endochondral ossification, impaired disproportionate dwarfism
Calves and dogs

Question 6

Osteosarcoma

Answer 6

Matastesse to lungs in large breeds . Forelimbs-distal radius proximal humerus
And hinflinv distal femur and proximal tibia

Question 7

Vertebral osteomyelitis

Answer 7

Truepurella pyogens bacteria enters the body and spreads haematogenously
To vertebra
Common in neonates with poor passive immunity

Question 8

Wobblers

Answer 8

Young horses 
High protein and energy ad lib
Develop abnormal cervical vertebra 
Poor articulation 
Stretched spinal cord 
Hindl imb ataxia

Question 9

Spondylosis

Answer 9

Osteophytes adjacent to discs
Type 1 - degenerate nucleus purposes herniated through torn dorsal ligament hindimb paralysis
Type 2 no tearing if all just herniated into spinal cord
Milder than type 1