Musculoskeletal & Fractures, Amputations Flashcards
______ is composed of cells, protein matrix, and mineral deposits
Bone
Three basic cell types of bone are?
Osteoblasts
Osteocytes
Osteoclasts
–bone forming cells, secrete bone forming cells
osteoblasts
mature bone cells, help with bone maintenance
osteocytes
bone absorption cells, dissolving and reabsorbing bone
osteoclasts
t/f: bone development happens more rapidly in a kids than an adult, and the bone healing process is better in kids
true
bone regrowth slows at ____ years of age
physical activity helps bone growth
20
t/f: nutrient absorption is really important
hormones are really important for bone growth
true
______ = Bone formation
Osteogenesis
____________ _________ and _________ __________ – acts to stimulate bone formation and remodeling
Physical activity, weight bearing
Good diet is necessary for bone health – ______ mg of calcium is needed every day to maintain bone health
1500
___________ ____________happens in four areas:
Bone marrow
Bone cortex
Periosteum
External soft tissue
Fracture healing
t/f: a fracture is a break
true
Bone marrow –where ______ are formed
osteoblasts
Bone cortex –where new ______ are formed
osteons
Periosteum –where _________ _________ or ___________ _________ is formed, formed through intramembranous ossification this happens peripheral to the fracture, where cartilage is formed through endochondral ossification
hard callous or fibrous tissue
Periosteum –where _________ _________ or __________ __________ is formed, formed through intramembranous ossification this happens peripheral to the fracture, where cartilage is formed through endochondral ossification
hard callous or fibrous tissue
________ _______ tissue –the tissue around the bone near the break where a bridging callous forms and it provides ____________ to the fractured bones
External soft
stability
There are ____ stages of healing are there in bone healing.
six
Stage 1: ______________ Formation
Stage 2: Hematoma to ___________ Tissue
Stage 3: _______ Formation
Stage 4: ___________ Proliferation
Stage 5: Bone _____________
Stage 6: Bone __________ Completed
Stage 1: Hematoma Formation
Stage 2: Hematoma to Granulation Tissue
Stage 3: Callus Formation
Stage 4: Osteoblastic Proliferation
Stage 5: Bone Remodeling
Stage 6: Bone Healing Completed
__________ ___ _____________ ______________–painful, forms within 72 hours, bleeding cuz bones vascular, vasoconstriction occurs, cytokines are released and they trigger angiogenesis which is the growth of new blood vessels,
Stage 1: Hematoma Formation
Stage __: Hematoma to __________ Tissue -__ _____ to ___ _____after the injury, granulation tissue invades the hematoma and starts forming fibrocartilage which is like the building block
Stage 2: Hematoma to Granulation Tissue
2 days to 2 weeks
________ __ __________ ____________due to vascular and cellular proliferation, fracture site will be surrounded by new vascular tissue called a _____
Stage 3: Callus Formation
callus
__________ ____ _________________ ________________ callous reabsorbed and transformed into bone, in __ __ ___ ______
Stage 4: Osteoblastic Proliferation
3 to 8 weeks
4-6 weeks after breaking a bone and can continue for a year, dead bone or necrotic bone is being removed by osteoclasts and reshaping of the new bone occurs
Stage 5: Bone Remodeling
Bone Healing Completed
Stage 6:
_______________ ______________ break across the ________ cross-section of the bone
Complete fracture
entire
__________________ ______________ (green-stick) a break through only part of the ______________ of bone
Incomplete fracture
cross-section
– produces several bone fragments
Comminuted fracture
__________________ _________ caused by a loading _________ applied to the long axis of cancellous bone (vertebrae)
Compression fracture
force
____________ ______________ one that does not cause a break in the skin
Closed fracture – (simple fracture)
_________________ _____________ bone alignment is altered or disrupted
Displaced fracture
_____________ __________ the skin or mucous membrane wound extends to the fractured bone
Open fracture (compound or complex fracture)
_____________ __________ (spontaneous or pathologic) occurs after ________trauma to a bone weakened by disease
Fragility Fracture
minimal
___________ _______________-due to excessive strain or stress on a bone
Fatigue (stress) Fracture
Open fractures are graded according to the following criteria:
______ __ less than 1 cm long
Grade I
Open fractures are graded according to the following criteria:
______ __ without extensive soft tissue damage
Grade II
Open fractures are graded according to the following criteria:
_________ ____ extensive soft tissue damage
Grade III
Acute pain
Loss of function
Deformity
_____________ of extremity
Crepitus
Local swelling and ___________
Pain is continuous and increases until the fragments are immobilized
MANIFESTATIONS: fractures
Shortening
discoloration
Ensure emergency care for airway, breathing, and circulation is not needed OR call 911 OR provide this care
Immobilize the body part before moving the patient
Splint adequately – including joints both proximal and distal to the injury
Pain management -opioids for a bit but as short as possible
management for a fracture
regional nerve blocks
is a shot in a bone
__________ – “setting the bone” – restoration of the fracture fragments to proper alignment and rotation
Reduction
____________ __________ – bringing the bone fragments into opposition through manipulation and manual traction
Use of moderate ________
X-ray confirmation
Will then ____________ with orthotic device, cast, splint, __________
Closed reduction
sedation
immobilize, bandage
____________ ___________ surgical procedure using internal fixation devices – screws, pins, wires, etc
Open reduction
Immobilize a reduced fracture
___________ a deformity
Apply uniform pressure to underlying soft tissue
Support and ________ weak joints
What does a cast do?
Correct
stabilize
______________ below the elbow to the palmar crease and secured around the base of the thumb – if the thumb is included can be also known as a thumb-spica or gauntlet cast
Short-arm
__________ from axillary fold to proximal palmar fold – elbow is usually immobilized at a _________ angle
Long-arm
right
______________ from below the knee to base of toes with foot flexed at a right angle in a neutral position
Short-leg
_________ From junction of the upper and middle third of the ______ to base of toes – knee may be slightly _____________
Long-leg
thigh
flexed
____________ ______ short or long-leg reinforced for strength
Walking cast
______ ____ encircles the trunk
Body cast
_________ ______body jacket that encloses trunk and shoulder and elbow
Shoulder spica