Contiguous

defining characteristics

Increasing pain, skull/mandible/ small bones hand/ long bones/feet, mild fever, minimal drainage
Diabetic osteomyelitis? Painless (due to peripheral neuropathy in most DM pts) ulcer extending to bone, mild cellulitis, crepitance [If it probes to the bone, it’s osteomyelitis]

disease development

Bacterial infection from localized ulceration/ trauma travel further to the bone

potential causes

Possible polymicrobial (see diabetic foot ulcer bacteria)
Mixed gram+/-, anaerobes

epidemiology

MOST common in adults

risk factors

Chronic skin ulcers (arterial sclerotic dz), trauma, diabetes, post-op ortho surgery, chronic edema

labimaging

Imaging hard to interpret bc surrounding soft tissue inf
Bone scan sometimes reveals contiguous spread from ulcer site
Bone sample for culture

conventional treatment

Revascularization
Amputation/ surgical debridement
Abs for 4-8wks (Avoid empiric ab tx)

complications

prevention

protocols