Difference between revisions of "Physitis"
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(Created page with "*In horses *Often associated with angular limb deformity *Also called '''epiphysitis''' and '''physeal dysplasia''' *P...") |
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| Line 1: | Line 1: | ||
*In horses | *In horses | ||
| − | *Often associated with [[ | + | *Often associated with [[Angular Limb Deformity|angular limb deformity]] |
*Also called '''epiphysitis''' and '''physeal dysplasia''' | *Also called '''epiphysitis''' and '''physeal dysplasia''' | ||
*Problem of [[Bone & Cartilage Development - Anatomy & Physiology|endochondral ossification]] | *Problem of [[Bone & Cartilage Development - Anatomy & Physiology|endochondral ossification]] | ||
| Line 13: | Line 13: | ||
**Excessive activity | **Excessive activity | ||
**Growth spurts | **Growth spurts | ||
| − | *Histologically: (appearance similar to [[ | + | *Histologically: (appearance similar to [[Angular Limb Deformity|angular limb deformity]]) |
**Lateral aspect of radius | **Lateral aspect of radius | ||
***Thickened metaphyseal part of physeal cartilage | ***Thickened metaphyseal part of physeal cartilage | ||
| Line 23: | Line 23: | ||
***Tension | ***Tension | ||
***-> Transverse [[Bones Fractures - Pathology|fractures]] and repair | ***-> Transverse [[Bones Fractures - Pathology|fractures]] and repair | ||
| − | **Laxity of periarticular attachements in young foals allows [[ | + | **Laxity of periarticular attachements in young foals allows [[Angular Limb Deformity|angular limb deformity]]; not occuring in older foals and young horses |
**(Sustained trauma produces similar lesions) | **(Sustained trauma produces similar lesions) | ||
Latest revision as of 18:24, 27 February 2011
- In horses
- Often associated with angular limb deformity
- Also called epiphysitis and physeal dysplasia
- Problem of endochondral ossification
- Two age groups
- Weanlings
- Yearlings in early training and two-year-olds
- May cause contracted tendons and flexural deformities
- Factors probably involved in its development:
- Genetically fast growth rate
- Large quantities of imbalanced, high energy feed
- Imbalanced weight-bearing on joints
- Excessive activity
- Growth spurts
- Histologically: (appearance similar to angular limb deformity)
- Lateral aspect of radius
- Thickened metaphyseal part of physeal cartilage
- -> Delay or disturbance of endochondral ossification
- Compression
- Central part
- No obvious deformity
- Medial aspect
- Tension
- -> Transverse fractures and repair
- Laxity of periarticular attachements in young foals allows angular limb deformity; not occuring in older foals and young horses
- (Sustained trauma produces similar lesions)
- Lateral aspect of radius