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Created page with "===Bone infections in general=== *'''Caused by''': **Bacteria most commonly (e.g. lumpy jaw in cattle due to ''Actinomyces bovis'') **Viruses, ..."
===Bone infections in general===
*'''Caused by''':
**Bacteria most commonly (e.g. [[Mandibular Osteomyelitis|lumpy jaw]] in cattle due to ''[[Actinomyces bovis]]'')
**Viruses, fungi and protozoa less commonly
*'''Routes of infection''':
**“Inoculated” at time of [[Bones Fractures - Pathology|fracture]]
**Extension from other infected sites ([[Sinusitis|sinuses]], middle ear, [[Joints Inflammatory - Pathology|joints]])
**Haematogenous (young farm animals)
*'''Gross lesions'''
**Suppurative exudate (in bacterial infection), necrosis, bone proliferation, pathological fractures
**Dead bone portions may be separated from blood supply and form bone sequestra
*'''Consequences'''
**Extension to adjacent bone
**Haematogenous spread to other bones and soft tissue
**Pathologic fractures
**Sinus tracts to exterior
*'''Osteitis''' = inflammation of bone
*'''Periostitis''' = inflammation of periosteum, usually develops from infection in adjacent tissues
*'''Osteomyelitis''' = inflammation of medullary cavity
===Osteitis===
*E.g.: [[Fusobacterium necrophorum|''Fusobacterium necrophorum'']] in the foot, [[Respiratory Bacterial Infections - Pathology#Necrotic laryngitis|calf diphteria]], bite wounds, extension from paranasal sinuses, compound fractures, extensions from infections in the joints, [[Alveolar Periostitis|periodontal disease]], [[Respiratory Bacterial Infections - Pathology#Atrophic Rhinitis|Atrophic rhinitis]]
[[Category:Bones - Inflammatory Pathology]]
*'''Caused by''':
**Bacteria most commonly (e.g. [[Mandibular Osteomyelitis|lumpy jaw]] in cattle due to ''[[Actinomyces bovis]]'')
**Viruses, fungi and protozoa less commonly
*'''Routes of infection''':
**“Inoculated” at time of [[Bones Fractures - Pathology|fracture]]
**Extension from other infected sites ([[Sinusitis|sinuses]], middle ear, [[Joints Inflammatory - Pathology|joints]])
**Haematogenous (young farm animals)
*'''Gross lesions'''
**Suppurative exudate (in bacterial infection), necrosis, bone proliferation, pathological fractures
**Dead bone portions may be separated from blood supply and form bone sequestra
*'''Consequences'''
**Extension to adjacent bone
**Haematogenous spread to other bones and soft tissue
**Pathologic fractures
**Sinus tracts to exterior
*'''Osteitis''' = inflammation of bone
*'''Periostitis''' = inflammation of periosteum, usually develops from infection in adjacent tissues
*'''Osteomyelitis''' = inflammation of medullary cavity
===Osteitis===
*E.g.: [[Fusobacterium necrophorum|''Fusobacterium necrophorum'']] in the foot, [[Respiratory Bacterial Infections - Pathology#Necrotic laryngitis|calf diphteria]], bite wounds, extension from paranasal sinuses, compound fractures, extensions from infections in the joints, [[Alveolar Periostitis|periodontal disease]], [[Respiratory Bacterial Infections - Pathology#Atrophic Rhinitis|Atrophic rhinitis]]
[[Category:Bones - Inflammatory Pathology]]