Exam 4 part 2 Flashcards
Complete fracture
When the bone is broken entirely
Incomplete fracture
Damage to the bone, but it’s still in one piece
Open fracture
A piece of bone protrudes from the skin. Leads to infection most commonly
Closed fracture
Occurs inside the skin. Can be incomplete or complete
Comminuted fracture
Bone breaks in two or more fragments. Particularly difficult to reset.
Linear fracture
Runs parallel to long axis of bone
Oblique fracture
Occurs at an oblique angle to the long shaft of the bone
Spiral fracture
Circle bone fractures that result from twisting forces
Transverse fracture
Occurs straight across the bone
Greenstick fracture
Break in one portion of the bone with splintering of the inner bone surface.
Most commonly in children and the elderly.
Torus fracture
No break, just cracking
Bowing fracture
Longitudinal force applied that causes bending
Stress fractures
Microfractures commonly seen in athletes.
Transchondral fractures
Separation of cartilage surfaces from the main bone
Manifestations of fractures
- Unnatural alignment
- Swelling
- Muscle spasm
- Tenderness
- Pain
- Impaired sensation
- Decreased mobility
Types of fracture healing
- Direct (primary) healing
- Indirect (secondary) healing
Direct (primary) healing
Occurs when bone cortices are in contact with one another
Occurs with surgical fixation
No callus formation
Indirect (secondary) healing
Involves formation of callus
Eventual remodeling of solid bone
Occur when fracture treated with cast or other nonsurgical method
Reduction
realigning the broken bone fragments
open Reduction
-Realigning the bone with surgery
fragments are manipulated into alignment under direct visualization
Fixation is used to hold the broken bones in an aligned position
-Internal Fixation-screws, plates, nails or wires
ORIF- Open Reduction Internal Fixation is most common
-External Fixation- pins or rods are surgically placed into uninjured bone near the fracture site and then stabilized with external frame of bars
high risk of infection
Closed Reduction
treats the fracture without surgery (w/o opening the skin)
Immobilization
-holding the fragments in place
use a splint or cast (6-8 weeks) Used after closed reduction
Improper reduction or immobilization of a fractured bone may result in
Nonunion- failure of the bone ends to grow together
the gap between the broken ends of the bone fills with fibrocartilage instead of bone
usually occurs in people with other problems (diabetes, smoking, etc)
Delayed Union- union that occurs 8-9 months after fracture (also affected by diabetes, smoking..)
Malunion- The bone heals in the incorrect position
Dislocation
- Displacement of one or more bones in a joint
- Opposing joint surfaces entirely lose contact