Class 3 Flashcards
Direct trauma fracture
break at point of impact
Indirect trauma fracture
break some distance from impact
Stress fracture
overuse
Pathology fracture
Pathologies weaken bone, more likely to fracture
Healing depends on
damage, movement, disease, age, overall health
Early complications occur within
few weeks
Acute compartment syndrome
fascial compartment swells — reduced circulation
Acute compartment syndrome results in
necrosis and gangrene
Bone infection early complication
fever, pain
Deep vein thrombosis
Blood clot in deep vein
Pressure sore
Ischemia over bony prominence
Late fracture complications occur
few weeks to years later
Delayed union
Bone taking longer to unite
Non-union
Failure of bone to heal
Malunion
Incorrect bone union
Avascular necrosis
Tissue death from lack of blood
Osteonecrosis
Avascular necrosis of bone
Bone healing stage 1
Inflammation forms fracture hematoma
Bone healing stage 2
Fibroblasts (CT cells) create soft callus
Bone healing stage 3
Replaces cartilage with bone
Bone healing stage 4
Remodeling. Osteoclasts shape bone
Fracture classification: Site
Where fracture occured
Complete fracture
broken 2 or more pieces
Incomplete fracture
bent/cracked