Musculoskeletal
Core Concepts
Functional ability, infection, mobility, pain, perfusion, safety are the priority nursing focuses in musculoskeletal disorders.
Nurses must be able to:
Recognize fracture signs & complications.
Perform neurovascular checks (5 Ps).
Anticipate and prevent complications like compartment syndrome, infection, and delayed healing.
Clinical Manifestations of Fractures
1. Bruising
Discoloration distal to injury from blood leakage into tissue.
Nursing note: Reassure patient — normal process, will resolve.
2. Crepitation
Crunching or grating sensation from bone fragments.
Significance: May increase risk of nonunion if excessive movement occurs.
3. Deformity
Abnormal alignment or contour.
Classic sign of fracture.
4. Edema & Swelling
From bleeding or tissue disruption.
Risk: Can impair circulation & nerves → compartment syndrome.
5. Loss of Function
Inability to use limb due to bone/joint disruption.
Requires proper management for restoration of mobility.
6. Muscle Spasm
Reflex contraction after injury.
Risk: Can worsen displacement.
7. Pain & Tenderness
Caused by spasm, nerve pressure, and movement of bone fragments.
Nursing note: Splint and immobilize to decrease pain.
Diagnostic Tests
X-ray – primary test, shows alignment and fracture.
CT – detailed imaging (complex fractures).
MRI – soft tissue and occult fractures.
Types of Fractures
Open vs Closed
Open: Skin broken → bone exposed. Infection risk.
Closed: Skin intact.
Displaced vs Nondisplaced
Displaced: Ends separated, out of position.
Nondisplaced: Fragments aligned.
Complete vs Incomplete
Complete: Break goes fully through bone.
Incomplete: Partial break, e.g., greenstick fracture in children.
Emergency & Nursing Management
Emergency Care Priorities
Immobilize fracture (splints, traction if ordered).
Cover open wounds with sterile dressing.
Do not attempt to realign bones unless trained.
Neurovascular checks = essential (before & after immobilization).
Nursing Assessments
Cardiovascular
Reduced/absent pulses distal to injury.
Delayed capillary refill, cool skin.
Neurovascular (“5 Ps”)
Pain (out of proportion, unrelieved by meds).
Pallor (skin pale or bluish).
Pulselessness (late sign).
Paresthesia (numbness, tingling).
Paralysis (loss of movement).
General
Apprehension, guarding, restricted function.
Skin
Pallor, coolness, bruising, edema, lacerations.
Musculoskeletal
Abnormal angulation or deformity.
Complications to Monitor
Compartment Syndrome:
Increased pressure in closed muscle compartment → impaired circulation.
S/S: Severe pain unrelieved by opioids, paresthesia, pulselessness (late).
Treatment: Remove restrictive dressings/casts, fasciotomy.
Infection:
Open fractures → osteomyelitis risk.
Fat Embolism Syndrome (FES):
Fat globules enter bloodstream after long bone/pelvic fracture.
S/S: Respiratory distress, petechiae on chest/axilla, neuro changes.
DVT/PE:
Immobility → clot formation.
Prevention: Early mobilization, anticoagulants, compression devices.
Delayed union/nonunion:
Bone fails to heal correctly.
Testable NCLEX Points
Neurovascular checks = priority.
Compartment syndrome hallmark: Pain not relieved by opioids.
Immobilization: Splint joints above and below fracture.
Open fracture priority: Prevent infection (cover with sterile dressing).
Fat embolism hallmark: Petechiae on chest/axilla + hypoxemia.
Cast care:
Keep dry, no objects inside.
Monitor circulation.
Traction: Maintain alignment, weights free-hanging, assess skin.