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Fractures - PTA Exam
Sample questions for PTA Exam
27
Health Care
Graduate
05/20/2009

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Term
Open Reduction
Definition
Fracture repair that requires surgery
Term
Closed reduction
Definition
Fracture repair that does not require surgery
Term
Partial (incomplete)
Definition
fracture that does not extend through the full transverse width of a bone.
Term
Complete
Definition
break involving the entire width of the bone
Term
Closed (simple)
Definition
Bone not through skin
Term
Open (compound)
Definition
Bone is through skin
Term
Communited
Definition
Bone Splinters
Term
Greenstick
Definition
Esp. in young; bone splinters at one end (side) only
Term
Spiral
Definition
A fracture in which the bone has been twisted apart and the line of break is helical.
Term
Transverse
Definition
Break at rt. angle to long acis of bone
Term
Impacted
Definition
One bone driven into another
Term
Pott's
Definition
Break at distal end of fibula
Term
Colles
Definition
Distal end of radius breaks and is displaced backwards
Term
Displaced
Definition
Bones not aligned after break
Term
Nondisplaced
Definition
Bones remain in alignment after break
Term
Stress
Definition
"Partial fracture, esp. from pounding while running hard surface, 1/4 occur at distal end of fibula"
Term
Pathological
Definition
From neoplasm = new tissue from tumor or bone infection; bone is thus very weak
Term
Hematoma
Definition
rupshired blood vessel
Term
Fracture hematoma
Definition
Clot that forms after 6 to 8 hours after break
Term
Fibrocartilagenous Callus Formation
Definition

Fibroblast, osteogenic cells, and red marrow invade the procallus

 Fibroblast form collagen fiber which help connect broken bones togther

Phagocytes continue to remove debris

Osteogenic cells form chondroblasts which forms fibrocartilage.

Term
Bony Callus Formation
Definition

Osteogenitor cells give rise to Osteoblasts which start to make spongy bone trabeculae

Trabeculae join with living and dead bone fragments
Fibrocartilage is turned into spongy bone

Term
Bone Remodeling
Definition

Dead fragments of bone are resorbed by osteoclasts

Compact bone replaces spongy bone

A thickened area on the surface of the bone may remain after repair

Term
What are the effects of exercise (2)?
Definition
Stimulates growth
Term
Decalification
Definition
loss of calcium and mineral from extracellular matrix
Term
Osteoporosis
Definition
From decreases in estrogen - stimulates osteoblasts - more estrogen in females thus results in less bone mass
Term
Decrease in protein metabolism
Definition
Brittle bones
Term
Brittle bones
Definition
"Less protein in diet, etc. means less collagen = less hardening = _____."
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