1. 20
Caring for Muscle and Bone Injuries

2. EXTREMITY INJURIES

3. State Standard
24) Research and evaluate National Trauma Triage Protocol. Identify and perform skills to manage life threatening injuries based on assessment findings of a patient with trauma emergencies, utilizing rubrics from textbooks, National HOSA guidelines, or clinical standards of practice in the following areas: a. Internal and external bleeding b. Chest trauma such as sucking chest wound and impaled objects in chest c. Abdominal trauma such eviscerations and impaled objects d. Orthopedic trauma such as fractures, dislocations, amputations e. Soft tissue trauma, burns, dressings, and bandages Page 6 f. Head, facial, neck and spine trauma such as head injuries, scalp injuries, and injuries to spine g. Environmental emergencies such as submersion and exposure to heat and cold h. Multi-system trauma

4. Objectives Students will be able to…
Determine the type of force that caused the injury
Distinguish between the different types of extremity injuries
Perform appropriate assessments for an extremity injury

5. Extremity Injuries Causes of Extremity Injuries Direct force
External force directly affects the body to cause injury at the point of impact from a fall or striking of an object
Indirect force
Energy of a force transferred up or down extremity resulting in injury farther along extremity
Critical Thinking: What is an example of an injury caused by a direct force? An indirect force?
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6. Extremity Injuries Causes of Extremity Injuries Twisting force
Body remains stationary while hand or foot continues turning.
Critical Thinking: What is an example of an injury caused by a twisting force?

7. Figure 20.5 There are three basic types of mechanism of injury.

8. MECHANISM OF INJURY – the force or forces that may have caused the patient's injury. DIRECT FORCE – energy that is transmitted directly to an extremity, causing an injury at the site of impact. INDIRECT FORCE – energy from a direct force blow that is transferred along the axis of a bone and causes an injury farther along the extremity. TWISTING FORCE – the forces caused when an extremity or part of an extremity is caught in a twisting or circular mechanism, while the rest of the extremity or the body is stationary or moving in another direction. DOWNWARD BLOW – Clavicle and scapula LATERAL BLOW – Clavicle, scapula, and humerus LATERAL BLOW – Knee, hip, femur (very forceful) INDIRECT FORCE – Pelvis, hip, knee, leg bones, shoulder, humerus, elbow, forearm bones TWISTING FORCE – Hip, femur, knee, leg bones, ankle, shoulder, elbow, forearm, wrist FORCED FLEXION OR HYPEREXTENSION – Elbow, wrist, fingers, femur, knee, foot

9. Extremity Injuries Types of Injuries Closed injury Open injury
No break in skin
Open laceration to the scalp while cranium remains intact
Open injury
Soft tissues adjacent to injury damaged and open
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10. Extremity Injuries Types of Injuries
Full extent of injury determined through x-ray
Do not try to diagnose injury.

11. Figure 20.6 Examples of a closed and open fracture of the lower leg.

12. Extremity Injuries Fracture Dislocation
Any time bone is broken, chipped, cracked, or splintered
Dislocation
One end of a bone that is part of a joint is pulled or pushed out of place.
Force of dislocation may cause a fracture of the adjoining bone.
Critical Thinking: Why should the EMR not try to diagnose an injury?

13. Extremity Injuries Sprain
Excessive twisting forces cause ligaments and tendons to stretch or tear.
Ligaments connect 2 bones to form a joint.
Tendons attach muscle to bones.
Discussion Questions: What are the immediate priorities when assessing a musculoskeletal injury? What signs might indicate an isolated injury?

14. Extremity Injuries Strain
Caused by overexerting, overworking, overstretching, or tearing of a muscle
Discussion Questions: What are the immediate priorities when assessing a musculoskeletal injury? What signs might indicate an isolated injury?

15. Extremity Injuries Angulated (deformed) injuries
Extremity is bulging, bent, or angulated where it normally should be straight.
Major angulation may damage veins and disrupt blood flow.
Patient may have decreased sensation or motor function.

16. Extremity Injuries Signs and Symptoms Pain Swelling Discoloration
Deformity
Inability to move a joint or limb
Numbness or tingling sensation
Loss of distal pulse
Critical Thinking: What is the significance of an absent distal pulse?
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17. Extremity Injuries Signs and Symptoms Slow capillary refill
Grating or crepitus
Sound of breaking at time of injury
Exposed bone
Critical Thinking: What is a major risk of a bone that is exposed?

18. PATIENT ASSESSMENT

19. Patient Assessment
Assess injuries for adequate circulation, sensation and motor function (CSM).
Before and after immobilization
Bleeding in the tissue will present as swelling and discoloration.
Critical Thinking: Why might it be helpful to mark the location of the distal pulse with ink?
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20. Patient Assessment
Assess injuries for adequate circulation, sensation and motor function (CSM).
Circulation compromise
No distal pulse
Pale and cool
Cyanosis
Capillary refill time of greater than 2 seconds
Critical Thinking: Why might it be helpful to mark the location of the distal pulse with ink?

21. Figure 20.7 Assessing capillary refill in the fingers.

22. Patient Assessment Emergency Care Scene size-up Scene safety
BSI precautions
PPE
MOI
Consider the need for spinal precautions.
Total number of patients
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23. Patient Assessment Emergency Care Primary assessment
Get impression of environment and patient.
Determine if patient needs to be moved and transported.
Assess ABCs.
Assess mental status.
Detect and correct life-threatening problems.

24. Patient Assessment Patient Assessment
Care for skeletal injuries in the following order:
Spine
Skull
Rib cage
Pelvis
Thighs
Extremity injuries with no distal pulse
Critical Thinking: Why is the spine given first priority?

25. Patient Assessment Emergency Care Steps Take proper BSI precautions.
Perform primary assessment.
Cut away clothing to expose injury site.
Control bleeding if there is open wound.
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26. Patient Assessment Emergency Care Steps
Check for distal circulation, sensation, and motor function in affected extremity.
Immobilize extremity using manual stabilization or splints.
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27. Patient Assessment Emergency Care Steps
Apply cold pack or ice pack to injury site to help reduce pain and swelling.
Administer oxygen per local protocol.
Assess patient's vital signs.
Emotional support important when caring for patient with musculoskeletal injuries

28. Think About It
You are treating a young woman who has been struck by a car. She has an angulated lower leg fracture. You ask her if her neck or back hurts and she says "No."
How reliable is this answer?
How will you proceed?

29. Activity *We have now covered all of our objectives
You will now be demonstrating proper assessment for a muscular or bone injuries for a selected scenario.
Individually -Complete the Muscle and Bone injuries/Splinting worksheets on the class website. Complete “The call scenario” questions 1 and 2, Review questions 6,7,8,9 Listing questions 1,3 and Summary questions 1-8
Exit Ticket: What are the 3 types of extremity injuries? Give an example of a way a person can get each of these.

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