Module 9: Fractures and Joint Replacement Flashcards
Risk Factors for Fractures
Age (older)
Athleticism/Athletic Injury
Diet
Gender - women more so than men
Genetics
Traumas
Co-morbidities
What sort of diets cause increased risk for fractures
poor vitamin D and calcium intake
Excessive alcohol intake
How do the genders compare for fracture risk
1 out of 2 women while 1 out of 4 men
What sort of co morbidities leave you at higher risk for fracture
HIV
Bone cancer
osteoporosis
Hyper and hypothyroidism (hyper revs up bone activity and hypo may relate more so to meds they take)
Almost any ___ is at risk for fracture
age
Why, despite falling often and getting hurt do infants and preschoolers get less fractures
they have softer bones that do no break as easily
How does alcohol use cause more fracture risk
- calories taken in this way do now have many vitamins for strong bones
- it impairs judgment and causes clumsiness
Why are women at higher risk for fracture than men
they are smaller on average and have a lower bone density than men
4 Types of Fracture Etiologies
Segmental
Displaced
Non-displaced
Pathological
Segmental Fracture
large fragments separate from the main bone
Displaced Fracture
Separated, not aligned
so the broken bone is broken and moved out of normal alignment
can also be segmental or not
Non-displaced fracture
separated but aligned fracture
bone is broken but outline is still the same, the line of fracture is there but the bone did not move out of place after
Pathological Fracture
a fracture as a result of non traumatic forces (frequently underlying illness)
could be something like a cough with a condition like cancer causing a fracture
Fractures are defined by what two things?
Bone (Incomplete or Complete)
Skin (Closed or Open)
What does it mean if the fracture is incomplete?
the fracture line only goes through part of the bone
What does it mean if the fracture is complete
the fracture line goes through the entire bone
What does it mean if the fracture is Simple or Closed
the skin remained closed and intact
What does it mean if the fracture is Compound or Open
skin is open with a greater infection risk
Different types of fracture lines/”Styles”
Transverse
Oblique
Spiral
Comminuted
Segmental
Avulsed
Impacted
Torus
Greenstick
Transverse Fracture
a fracture perpendicular across the bone
Oblique Fracture
an angled line of fracture across the bone
Spiral Fracture
A fracture that has a non straight non neat angle that is more jagged and twisted across the bone
occurs from twisting force
Comminuted Fracture
fracture where there are multiple pieces (looks like shattered glass)
Segmental (Line) Fracture
when a tendon or ligament pulls a piece of the fracture away so you end up with 2 areas of fracture leaving a piece that you could hypothetically pull away
Avulsed Fracture
A fracture where you could hypothetically pull a piece away but there is only one line of fracture
Impacted Fracture
when two piece of fracture (the shard and the bone) are driven together
Torus Fracture
Torus is greek for “Bulging”
it is like if you pushed on each end of the bone until it buckles and now bulged somewhere along the bone
has no distinct fracture line
Greenstick Fracture
a bone that gets bent and has an incomplete/partial fracture line that only goes partway through the bone
What are the 2 most common childhood fractures
Torus
Greenstick
Usually torus and greenstick fractures are not seen after what ages?
10 for torus
12 for greenstick
FOOSH
Falling on outstretched hand
What is the most common cause of the Torus fracture
FOOSH
Diagnostic Tests for Fractures
X Ray
CT Scan/MRI if occult
Bone scan
How can an X Ray help ID a fracture
it is good for outlining the bone (not perfect), and is quick
How can a CT Scan or MRI help ID a fracture
X rays can miss angles and tissues so this will make sure the fractures as seen from angles or tissues are seen
not the first choice though
How can a bone scan help with fractures
the body is injected with a tracer to mark inflammation and problem areas
it can then determine fracture complications like delayed healing and infection
only done if there is one of the complications suspected
What are some things we look for on general assessment of a suspected fracture
deformity (depends if displaced)
edema (can take time)
pain
crepitus
spasms
ecchymosis
loss of function
abnormal ROM
circulatory compromise
not all of these are seen all the time, different people have different results
What can hurt worse than the fracture at times
spasms
it is when the muscles around and near the fractures change and pull in from inflammation
What is our biggest concern on a fracture general assessment
circulatory compromise
if this is impinged than it could make a problem below the area - ex: in the forearm if there is compromise it could cause problems in the hand
We always worry about what is ____/____ the fracture
beyond/distal-to
What are the three early neurovascular assessment concerns for a fracture
Pain
Paresthesia
Pallor
What are the three late neurovascular assessment concerns for a fracture
Polar
Paralysis
Pulses
Early Pain in fractures is …
unrelieved with medication or repositioning/elevation
What does Polar mean
cool or cold fingers and toes
compare bilaterally like everything else
How does Paresthesia compare to Paralysis
paresthesia is early numbness, tingling, pins and needles sensations
paralysis is an inability to move those toes and finger
What are Pulses like in late fractures
doppler only pulse or no pulse felt distal to the injury
need to compare to a baseline tho
How might you check pallor with a fracture
check cap refill (>3 sec) and for bluish fingers and toes distal to the fracture
How are treatments for fractures determined
by type and location
2 Types of fracture treatment
External immobilization
internal immobilization
External Immobilization
for more stable fractures
casts, splints, traction
Internal Immobilization
For less stable fractures or if more conservative treatment fails or immobilization risk is greater than surgical risk
skeletal traction, external fixator, internal fixation (ORIF), bone grafting
Medullary Nail
a large nail that goes through the center of a bone a (the core) and can connect something like a segmental fracture back together
What happens to the hardware used in internal immobilization after healing?
no one goes in and removes it, it stays there
may get a card for metal detectors
Cast
external immobilization
a rigid external immobilizing device
use determined by underlying condition
immobilizes the proximal and distal joints too around the fracture to prevent damage and movement
Uses for Casts
Immobilize a reduced fracture
correct a deformity (like congenital hip dysplasia)
apply uniform pressure to soft tissues (to prevent skin breakdwon)
support to stabilize a joint
Reduced Fracture
one where the pieces have been put back into place and now need immobilization to hold them there and heal
Materials for Casts
- Fiberglass - lightweight, durable, waterproof
- Plaster - heavier, break apart when wet, require 24+ hours to dry
What to assess about a patient when using a cast
how is the skin
check neurovascular status below area of injury (temp, cap refill, movement)
is there edema and swelling present or no (if pressing on the area may need to loosen or redo cast)
What to assess about the cast itself
is it dry
is it intact
are there no rough edges, if so then pad them
What to educate a patient on before applying the cast
purpose and goals of the cast
expectations for the casting process (like the heat the plaster gives off while hardening)
not to scratch or stick anything under the cast
cushion rough edges
discuss what they can and cannot do with it (activity and mobility options)
What to educate a patient on after applying a cast
control of edema and pain
exercises to do
safe use of assistive devices
S/S to report
What S/S should be reported with a cast
persistent pain or swelling
changes in sensation, movement, skin color, or temperature
signs of infection like burning or itching at pressure areas
burning or itching at pressure areas from it digging in
Common pressure areas that a cast can harm if not padded or careful?
Ulna and Radial Styloid (the wrist bones)
Olecranon and Lateral Epicondyle (Elbow bones)
Lateral malleolus (ankle bone)
tibial tuberosity (knee bone)
What should be monitored for in a leg cast?
peroneal nerve damage that can cause foot drop
this leads to problems walking so we must monitor for different feelings in the calf or foot
Body and Spica Cast
cast that encases the trunk and portions of 1 or 2 extremities
tricky to put on
perineal opening must be large enough for hygiene and voiding
What kind of person may get a spica cast
children born with malformed hips
casting the legs apart can help the hip joint heal in a healthy way
Cast Syndrome
something that can happen in any cast that encases any of the trunk or abdomen
it causes claustrophobia and anxiety from compressing the mesenteric nerve
can talk someone through it and it is sort of like a panic attack
What kinda of cast has the greatest likelihood to cause cast syndrome
an abdominal or trunk cast and the higher up it is the more risk there is
What nerve can lead to foot drop if not monitored for
Peroneal nerve
What nerve can lead to cast syndrome if not monitored for
mesenteric nerve
Traction
external immobilization
means “Pull” - it pulls on the area and you want to maintain this pull to keep things in alignment so they can heal properly
this is mostly to align and immobilize and keep pieces where they need to be in complicated fractures that cannot be fixed normally
Purpose of Traction
Reduce muscle spasms (reduces strain from fracture pieces wiggling)
Reduce, align, and immobilize fractures
Reduce deformity
Increase space between opposing forced
short term intervention (skin) or treatment (skeletal)
Skin traction is a ___ ___ intervention
short term (can be used while waiting surgery)
skeletal traction can be used as ___
treatment (can be weeks or days)
Types of Traction
Manual (AKA: Skin)
Skeletal
Manual (Skin) Traction
used before surgery
can be intermittent
weight limit maximums
ex: a leg in a foam boot with nothing going in, there is a free weight pulling on it and the only thing touching skin is the boot
can even be done intermittently or on going
Skeletal Traction
continuous traction
pins are screwed through bones
a treatment
more internal and external immobilization (pins in bone but come outside the body
It is important to never let what happen with traction
never let the weight hit the floor (that would mean there is no pull)
External Fixators
external traction that does have things going into bones or skin
it can look like a steel cage with pins going into a leg or a device going into the foot or arm that hangs out like a large metal bar
pins go in proximal and distal to the fracture site
nurses never adjust or place there and people can go home with these
What is a big concern with external fixators and skeletal traction
the pins leave open areas for infection
If there is already a lot of open areas and injury, a person may get an external fixator, and what is the benefit then for the nurse
they can assess healing better in that case as they can see it
Nursing Responsibilities regarding traction
- Hydration/nutrition, back rubs, float heels, reposition, avoid shearing damage (skin)
- minimize calf pressure (peroneal nerve)
- monitor pulses and sensation (circulation)
- position feet to avoid plantar flexion, inversion, or eversion (proper body alignment) - we want them pointed up not rotated or down
- pin care (infection)
What is the goal of pin care
prevent infection of skin/soft tissue/bone
Pin care is specific to…
skeletal traction and external fixators
What should be done for pin care initially (first 48 hours)
insertion sites may be covered by a sterile non stick dressing - do not give access too much and check too much
inspect pins every shift for infection
teach patient to perform this care at home
What should occur later in pin care?
use betadine (water/saline solution) to clean once a shift or 2 times daily AS ORDERED/PER POLICY
inspect pin sites every shift for infection
teach patient to perform this care at home
___ may occur and is normal during pin care
crusting (do not scrub it off just gently clean the area)