Fractures Flashcards
_____ fracture: the presence of more than 1 fracture line & more than 2 bone fragments
Comminuted
_____ fracture: bone fragment telescopes into another bone fragment (long bone)
Impacted
_____ fracture: an incomplete break in the bone; common in children
Greenstick
Extent of fracture:
_____ fracture: fragments remain in alignment & position
Non displaced
Extent of fracture:
_____ fracture: bone ends are separated
Displaced
Extent of fracture:
_____ fracture: fragment displaced below the level of the bon surface; common in flat bones due to trauma
Depressed
Extent of fracture:
_____ fracture: Skin is penetrated or broken
Open (compound)
X-ray of fracture is taken from at least ___ angles
2
Immobilisation and repeat x-ray in ____weeks
1-2
Bone healing steps in the cortical (compact) bone
- cortical bone fracture: torn blood vessel in the ________
- ________
- resorption & bone deposition: living bone replaces ________
- ________: new bone formation at edges of _______
- remodeling: replacement of ________
- cortical bone fracture: torn blood vessel in the Haversian system
- clotting
- resorption & bone deposition: living bone replaces avascular bone
- callus formation: new bone formation at edges of periosteum
- remodeling: replacement of mature lamellar bone
Bone healing steps in the cancellous bone
- cancellous bone fracture: formation of ________
- ________ of bone at fracture site prevented
- resorption & bone deposition: living bone replaces ________
- primary woven bone: formed by ________ in the ________
- ________ bone: replaces woven bone
- cancellous bone fracture: formation of internal callus
- necrosis of bone at fracture site prevented
- resorption & bone deposition: living bone replaces avascular bone
- primary woven bone: formed by osteogenic cells in the trabeculae
- lamellar bone: replaces woven bone
External fixation: devices applied _______
temporarily
Factors of delayed union
- smoking
- immunocompromised
Delayed healing:
______: not healed by > 6 mnths aft a fracture
Nonunion
Delayed healing:
______: improper alignment of fracture fragments
Malunion