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Slide 1-

Chapter 29 Orthopaedic Injuries
Slide 2-

Anatomy and Physiology of the Musculoskeletal System (1 of 5) Three types of muscles: skeletal, smooth, and cardiac Skeletal muscle attaches to the bones and usually crosses at least one joint. Forms the major muscle mass of the body Called voluntary muscle because it is under direct voluntary control of the brain
Slide 3-

Anatomy and Physiology of the Musculoskeletal System (2 of 5)
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Anatomy and Physiology of the Musculoskeletal System (3 of 5) All skeletal muscles are supplied with arteries, veins, and nerves. Skeletal muscle tissue is directly attached to the bone by tendons.
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Anatomy and Physiology of the Musculoskeletal System (4 of 5) Smooth muscle performs much of the automatic work of the body. Not under voluntary control of the brain Contracts and relaxes to control the movement of the contents within tubular structures
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Anatomy and Physiology of the Musculoskeletal System (5 of 5) Cardiac muscle is a specially adapted involuntary muscle with its own regulatory system.
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The Skeleton (1 of 11) Gives us our recognizable human form Protects our vital organs Allows us to move Produces blood cells Made up of approximately 206 bones
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The Skeleton (2 of 11)
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The Skeleton (3 of 11) The skull protects the brain. The thoracic cage protects the heart, lungs, and great vessels. The pectoral girdle consists of two scapulae and two clavicles.
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The Skeleton (4 of 11)
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The Skeleton (5 of 11)
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The Skeleton (6 of 11) The upper extremity extends from the shoulder to the fingertips. Composed of the arm (humerus), elbow, forearm (radius and ulna), wrist, hand, and fingers
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The Skeleton (7 of 11) The hand contains three sets of bones: Wrist bones (carpals) Hand bones (metacarpals) Finger bones (phalanges)
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The Skeleton (8 of 11) The pelvis supports the body weight and protects the structures within the pelvis: the bladder, rectum, and female reproductive organs. The lower extremity consists of the bones of the thigh, leg, and foot.
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The Skeleton (9 of 11)
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The Skeleton (10 of 11) The foot consists of three classes of bones: Ankle bones (tarsals) Foot bones (metatarsals) Toe bones (phalanges)
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The Skeleton (11 of 11) The bones of the skeleton provide a framework to which the muscles and tendons are attached. A joint is formed wherever two bones come into contact. Joints are held together in a capsule. Joints are lubricated by synovial fluid.
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Musculoskeletal Injuries (1 of 5) A fracture is a broken bone. A potential complication is compartment syndrome. A dislocation is a disruption of a joint in which the bone ends are no longer in contact.
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Musculoskeletal Injuries (2 of 5) A subluxation is similar except the disruption of the joints is not complete. A fracture-dislocation is a combination injury at the joint.
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Musculoskeletal Injuries (3 of 5) A sprain is an injury to ligaments, articular capsule, synovial membrane, and tendons crossing the joint. A strain is a stretching or tearing of the muscle, causing: Pain Swelling Bruising
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Musculoskeletal Injuries (4 of 5) An amputation is an injury in which an extremity is completely severed from the body. Injury to bones and joints is often associated with injury to the surrounding tissues. Entire area is known as the zone of injury
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Musculoskeletal Injuries (5 of 5)
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Mechanism of Injury Significant force is generally required to cause fractures and dislocations. Direct blows Indirect forces Twisting forces High-energy forces
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Fractures (1 of 8) Classified as either closed or open Your first priority is to determine whether the overlying skin is damaged. Treat any injury that breaks the skin as a possible open fracture.
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Fractures (2 of 8) Fractures are described by whether the bone is moved from its normal position. A nondisplaced fracture is a simple crack of the bone. A displaced fracture produces actual deformity, or distortion, of the limb by shortening, rotating, or angulating it.
Slide 26-

Fractures (3 of 8) Medical personnel often use the following special terms to describe particular types of fractures.
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Fractures (4 of 8) Greenstick An incomplete fracture that passes only partway through the shaft of a bone Comminuted A fracture in which the bone is broken into more than two fragments Pathologic A fracture of weakened or diseased bone
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Fractures (5 of 8) Oblique A fracture in which the bone is broken at an angle across the bone Transverse A fracture that occurs straight across the bone
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Fractures (6 of 8) Spiral A fracture caused by a twisting force, causing an oblique fracture around the bone and through the bone Incomplete A fracture that does not run completely through the bone
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Fractures (7 of 8) Suspect a fracture if one or more of the following signs are present: Deformity Tenderness Guarding Swelling
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Fractures (8 of 8) Signs of fractures (cont’d) Bruising Crepitus False motion Exposed fragments Pain Locked joint
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Dislocations (1 of 3) Sometimes a dislocated joint will spontaneously reduce before your assessment. Confirm the dislocation by taking a patient history. A dislocation that does not reduce is a serious problem.
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Dislocations (2 of 3) Signs and symptoms Marked deformity Swelling Pain that is aggravated by any attempt at movement Tenderness on palpation
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Dislocations (3 of 3) Signs and symptoms (cont’d) Virtually complete loss of normal joint motion Numbness or impaired circulation to the limb or digit Source: © Dr. P. Marazzi/Photo Researchers, Inc.
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Sprains (1 of 3) A sprain occurs when a joint is twisted or stretched beyond its normal range of motion. Alignment generally returns to a fairly normal position, although there may be some displacement. Severe deformity does not typically occur.
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Sprains (2 of 3) Signs and symptoms Point tenderness Swelling and ecchymosis Pain Instability of the joint Source: © Sean Gladwell/Dreamstime.com
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Sprains (3 of 3)
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Strain A strain is an injury to a muscle and/or tendon that results from a violent muscle contraction or from excessive stretching. Often no deformity is present and only minor swelling is noted at the site of the injury.
Slide 39-

Compartment Syndrome (1 of 2) Most often occurs with a fractured tibia or forearm of children Typically develops within 6 to 12 hours after injury, as a result of: Excessive bleeding A severely crushed extremity The rapid return of blood to an ischemic limb
Slide 40-

Compartment Syndrome (2 of 2) This syndrome is characterized by: Pain that is out of proportion to the injury Pain on passive stretching of muscles within the compartment Pallor Decreased sensation Decreased power
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Amputations Can occur as a result of trauma or a surgical intervention You must control bleeding and treat for shock. Be aware of the victim’s emotional stress.
Slide 42-

Complications (1 of 3) Orthopaedic injuries can also lead to systemic changes or illnesses. The likelihood of having a complication is often related to the: Strength of the force that caused the injury Injury’s location Patient’s overall health
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Complications (2 of 3) To prevent contamination following an open fracture: Brush away any debris on the skin Do not enter or probe the site Long-term disability is one of the most devastating consequences of an orthopaedic injury.
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Complications (3 of 3) You can help reduce the risk or duration of long-term disability by: Preventing further injury Reducing the risk of wound infection Minimizing pain by the use of cold and analgesia Transporting patients to an appropriate medical facility
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Assessing the Severity of Injury (1 of 2) The Golden Period is critical for life and for preserving limb viability. Prolonged hypoperfusion can cause significant damage. Any suspected open fracture or vascular injury is a medical emergency. Most injuries are not critical. Use a grading system.
Slide 46-

Assessing the Severity of Injury (2 of 2)
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Patient Assessment (1 of 2) Patient assessment steps Scene size-up Primary assessment History taking Secondary assessment Reassessment
Slide 48-

Patient Assessment (2 of 2) Always look at the big picture. Distinguish mild injuries from severe injuries. Severe injuries may compromise neurovascular function, which could be limb threatening.
Slide 49-

Scene Size-up (1 of 2) Scene safety Observe the scene for any hazards. Identify the forces associated with the MOI. Standard precautions involve gloves, a mask, and a gown. Consider that there may be hidden bleeding. Evaluate the need for additional support.
Slide 50-

Scene Size-up (2 of 2) Mechanism of injury/nature of illness Look for indicators of the MOI. Be alert for both primary and secondary injuries. Consider how the MOI produced the injuries expected.
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Primary Assessment (1 of 5) Focus on identifying and managing life threats. Form a general impression. Introduce yourself. Check for responsiveness using the AVPU scale. Ask about the chief complaint.
Slide 52-

Primary Assessment (2 of 5) Form a general impression (cont’d). Administer high-flow oxygen to all patients whose LOC is less than alert and oriented. Perform a rapid scan and ask about the MOI. If there was significant trauma, the musculoskeletal injuries may be a lower priority.
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Primary Assessment (3 of 5) Airway and breathing Evaluate the chief complaint and MOI. If a spinal injury is suspected, take the appropriate precautions and prepare for stabilization. Oxygen may be given to relieve anxiety and improve perfusion.
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Primary Assessment (4 of 5) Circulation Determine whether the patient has a pulse, has adequate perfusion, or is bleeding. If the skin is pale, cool, or clammy and capillary refill time is slow, treat for shock. Maintain a normal body temperature and improve perfusion with oxygen. Fractures can break through the skin and cause external bleeding.
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Primary Assessment (5 of 5) Transport decision Provide rapid transport if the patient has an airway or breathing problem, or significant bleeding. A patient who has a significant MOI but whose condition appears otherwise stable should also be transported promptly. Patients with a simple MOI may be further assessed.
Slide 56-

History Taking Investigate the chief complaint. Obtain a medical history and be alert for injury-specific signs and symptoms and any pertinent negatives. Obtain a SAMPLE history for all trauma patients. OPQRST is too lengthy when matters of ABCs require immediate attention.
Slide 57-

Secondary Assessment (1 of 4) More detailed examination of the patient to reveal hidden injuries Physical examinations If significant trauma has occurred, start with a full-body scan Begin with the head and work systematically toward the feet. Assess the musculoskeletal system.
Slide 58-

Secondary Assessment (2 of 4) Physical examinations (cont’d) When lacerations are present in an extremity, consider an open fracture. Any injury or deformity of the bone may be associated with vessel or nerve injury. To assess neurovascular status, follow the steps in Skill Drill 29-1.
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Secondary Assessment (3 of 4)
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Secondary Assessment (4 of 4) Vital signs Determine a baseline set of vital signs, including: Pulse rate, rhythm, and quality Respiratory rate, rhythm, and quality Blood pressure Skin condition Pupil size and reaction to light
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Reassessment (1 of 3) Repeat the primary assessment. Every 5 minutes for an unstable patient Every 15 minutes for a stable patient Interventions Assess the overall condition, stabilize the ABCs, and control any serious bleeding. In a critically injured patient, secure the patient to a long backboard and transport.
Slide 62-

Reassessment (2 of 3) Interventions (cont’d) If the patient has no life-threatening injuries, take extra time at the scene to stabilize his or her condition. The main goal is stabilization in the most comfortable position that allows for maintenance of good circulation distal to the injury.
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Reassessment (3 of 3) Communication and documentation Include a description of the problems found during your assessment. Report problems with the ABCs, open fractures, and compromised circulation. Document complete description of injuries and the MOIs associated with them.
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Emergency Medical Care Perform a primary assessment. Stabilize the patient’s ABCs. Perform a rapid scan or focus on a specific injury. Follow standard precautions. Suspect internal bleeding. Follow the steps in Skill Drill 29-2.
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Splinting (1 of 7) A splint is a flexible or rigid device that is used to protect and maintain the position of an injured extremity. Splint all fractures, dislocations, and sprains before moving the patient, unless he or she is in immediate danger. Splinting reduces pain and makes it easier to transfer and transport the patient.
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Splinting (2 of 7) Splinting will help to prevent: Further damage to muscles, the spinal cord, peripheral nerves, and blood vessels Laceration of the skin Restriction of distal blood flow Excessive bleeding of the tissues Increased pain Paralysis of extremities
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Splinting (3 of 7)
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Splinting (4 of 7) General principles of splinting Remove clothing from the area. Note and record the patient’s neurovascular status. Cover all wounds with a dry, sterile dressing. Do not move the patient before splinting an extremity, unless there is danger.
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Splinting (5 of 7) General principles of splinting (cont’d) Pad all rigid splints. Maintain manual stabilization. If you encounter resistance, splint the limb in its deformed position. Stabilize all suspected spinal injuries in a neutral, in-line position. When in doubt, splint.
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Splinting (6 of 7) General principles of in-line traction splinting Act of pulling on a body structure in the direction of its normal alignment Goals of in-line traction: To stabilize the fracture fragments To align the limb sufficiently To avoid potential neurovascular compromise
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Splinting (7 of 7) In-line traction splinting (cont’d) Imagine where the uninjured limb would lie, and pull gently along the line of that imaginary limb until the injured limb is in approximately that position.
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Rigid Splints (1 of 4) Made from firm material Applied to the sides, front, and/or back of an injured extremity Prevent motion at the injury site Takes two EMTs to apply Follow the steps in Skill Drill 29-3.
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Rigid Splints (2 of 4)
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Rigid Splints (3 of 4)
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Rigid Splints (4 of 4) Two situations in which you must splint the limb in the position of deformity: When the deformity is severe When you encounter resistance or extreme pain when applying gentle traction to the fracture of a shaft of a long bone
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Formable Splints (1 of 2) Most commonly used formable splint is the precontoured, inflatable, clear plastic air splint Comfortable Provides uniform contact Applies firm pressure to a bleeding wound Used to stabilize injuries below the elbow or knee
Slide 77-

Formable Splints (2 of 2) Drawbacks: The zipper can stick, clog with dirt, or freeze. Significant changes in the weather affect the pressure of the air in the splint. Follow the steps in Skill Drills 29-4, 29-5, and 29-6.
Slide 78-

Traction Splints (1 of 4) Used primarily to secure fractures of the shaft of the femur Several different types: Hare splint Sager splint Reel splint Kendrick splint
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Traction Splints (2 of 4) Do not use for any of these conditions: Injuries of the upper extremity Injuries close to or involving the knee Injuries of the hip Injuries of the pelvis Partial amputations or avulsions with bone separation Lower leg, foot, or ankle injury
Slide 80-

Traction Splints (3 of 4) Proper application requires two well-trained EMTs. To apply a Hare splint, follow the steps in Skill Drill 29-7. To apply a Sager splint, follow the steps in Skill Drill 29-8.
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Traction Splints (4 of 4)
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Pelvic Binder Used to splint the bony pelvis to reduce hemorrhage from bone ends, venous disruption, and pain Meant to provide temporary stabilization Should be light, made of soft material, easily applied by one person, and should allow access to the abdomen, perineum, anus, and groin
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Pneumatic Antishock Garments (1 of 3) Use as a splinting device if a patient has injuries to the lower extremities/pelvis. Do not use the PASG if any of the following conditions exist: Pregnancy Pulmonary edema Acute heart failure
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Pneumatic Antishock Garments (2 of 3) Do not use the PASG if (cont’d): Penetrating chest injuries Groin injuries Major head injuries A transport time of less than 30 minutes Follow the steps in Skill Drill 29-9.
Slide 85-

Pneumatic Antishock Garments (3 of 3)
Slide 86-

Hazards of Improper Splinting Compressions of nerves, tissues, and blood vessels Delay in transport of a patient with a life-threatening injury Reduction of distal circulation Aggravation of the injury Injury to tissue, nerves, blood vessels, or muscles
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Transportation Very few, if any, musculoskeletal injuries justify the use of excessive speed during transport. A patient with a pulseless limb must be given a higher priority. If the treatment facility is an hour or more away, transport by helicopter or immediate ground transportation.
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Injuries of the Clavicle and Scapula (1 of 3) The clavicle is one of the most commonly fractured bones in the body. Occur most often in children A patient will report pain in the shoulder and will hold the arm across the front of the body. Source: © Shea, MD/Custom Medical Stock Photo
Slide 89-

Injuries of the Clavicle and Scapula (2 of 3) Fractures of the scapula occur much less frequently because the bone is well protected by many large muscles. Almost always the result of a forceful, direct blow to the back The associated chest injuries pose the greatest threat of long-term disability.
Slide 90-

Injuries of the Clavicle and Scapula (3 of 3) These fractures can be splinted effectively with a sling and swathe.
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Dislocations of the Shoulder The humeral head most commonly dislocates anteriorly. Shoulder dislocations are very painful. Stabilization is difficult because any attempt to bring the arm in toward the chest wall produces pain. Splint the joint in whatever position is more comfortable for the patient.
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Fractures of the Humerus (1 of 2) Occur either proximally, in the midshaft, or distally at the elbow Consider applying traction to realign the fracture fragments before splinting them. Splint the arm with a sling and swathe.
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Fractures of the Humerus (2 of 2)
Slide 94-

Elbow Injuries (1 of 5) Different types of injuries are difficult to distinguish without x-ray examinations. Fracture of the distal humerus Common in children Fracture fragments rotate significantly, producing deformity and causing injuries to nearby vessels and nerves.
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Elbow Injuries (2 of 5) Dislocation of the elbow Typically occurs in athletes The ulna and radius are most often displaced posteriorly.
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Elbow Injuries (3 of 5) Elbow joint sprain This diagnosis is often mistakenly applied to an occult, nondisplaced fracture. Fracture of olecranon process of ulna Can result from direct or indirect forces Often associated with lacerations and abrasions Patient will be unable to extend the elbow.
Slide 97-

Elbow Injuries (4 of 5) Fractures of the radial head Often missed during diagnosis Generally occurs as a result of a fall on an outstretched arm or a direct blow to the lateral aspect of the elbow Attempts to rotate the elbow or wrist cause discomfort.
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Elbow Injuries (5 of 5) Care of elbow injuries All elbow injuries are potentially serious and require careful management. Always assess distal neurovascular functions periodically. Provide prompt transport for all patients with impaired distal circulation.
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Fractures of the Forearm Common in people of all age groups Seen most often in children and elderly Usually, both the radius and the ulna break at the same time. Fractures of the distal radius are known as Colles fractures. To stabilize fractures, you can use a padded board, air, vacuum, or pillow splint.
Slide 100-

Injuries of the Wrist and Hand Must be confirmed by x-ray exams Dislocations are usually associated with a fracture. Any questionable wrist injury should be splinted and evaluated in the ED. Follow the steps in Skill Drill 29-10 to splint the hand and wrist.
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Fractures of the Pelvis (1 of 3) Often results from direct compression in the form of a heavy blow Can be caused by indirect forces Not all pelvis fractures result from trauma. May be accompanied by life-threatening loss of blood Open fractures are quite uncommon.
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Fractures of the Pelvis (2 of 3) Suspect a fracture of the pelvis in any patient who has sustained a high-velocity injury and complains of discomfort in the lower back or abdomen. Assess for tenderness.
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Fractures of the Pelvis (3 of 3)
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Dislocation of the Hip (1 of 3) Dislocates only after significant injury Most dislocations are posterior. Suspect a dislocation in any patient who has been in an automobile crash and has a contusion, laceration, or obvious fracture in the knee region.
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Dislocation of the Hip (2 of 3) Posterior dislocation is frequently complicated by injury to the sciatic nerve. Distinctive signs Severe pain in the hip Strong resistance to movement of the joint Tenderness on palpation
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Dislocation of the Hip (3 of 3) Make no attempt to reduce the dislocated hip in the field. Splint the dislocation. Place the patient supine on a backboard. Support the affected limb with pillows. Secure the entire limb to the backboard with long straps. Provide prompt transport.
Slide 107-

Fractures of the Proximal Femur (1 of 2) Common fractures, especially in elderly Break goes through the neck of the femur, the interochanteric region, or across the proximal shaft of the femur Patients display a certain deformity. They lie with the leg externally rotated, and the injured limb is usually shorter than the opposite, uninjured limb.
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Fractures of the Proximal Femur (2 of 2) Assess the pelvis for any soft-tissue injury and bandage appropriately. Assess pulses and motor and sensory functions. Splint the lower extremity and transport to the emergency department.
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Femoral Shaft Fractures (1 of 2) Can occur in any part of the shaft, from the hip region to the femoral condyles just above the knee joint Large muscles of the thigh spasm in an attempt to “splint” the unstable limb. Fractures may be open. There is often significant blood loss.
Slide 110-

Femoral Shaft Fractures (2 of 2) Bone fragments may penetrate or press on important nerves and vessels. Carefully and periodically assess the distal neurovascular function. Cover any wound with a dry, sterile dressing. These fractures are best stabilized with a traction splint.
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Injuries of Knee Ligaments (1 of 2) Many different types of injuries occur in this region. Ligament injuries Patella can dislocate. Bony elements can fracture.
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Injuries of Knee Ligaments (2 of 2) When you examine the patient, you will generally find: Swelling Occasional ecchymosis Point tenderness at the injury site A joint effusion Splint all suspected knee ligament injuries.
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Dislocation of the Knee (1 of 2) These are true emergencies that may threaten the limb. Ligaments may be damaged or torn. Direction of dislocation is the position of the tibia with respect to the femur. Anterior dislocations Posterior dislocations Medial dislocations
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Dislocation of the Knee (2 of 2) Complications may include: Limb-threatening popliteal artery disruption Injuries to the nerves Joint instability If adequate distal pulses are present, splint the knee and transport promptly.
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Fractures About the Knee (1 of 2) May occur at the distal end of the femur, at the proximal end of the tibia, or in the patella Management If there is an adequate distal pulse and no significant deformity, splint the limb with the knee straight.
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Fractures About the Knee (2 of 2) Management (cont’d) If there is an adequate pulse and significant deformity, splint the joint in the position of deformity. If the pulse is absent below the level of injury, contact medical control. Never use a traction splint.
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Dislocation of the Patella Most commonly occurs in teenagers and young adults in athletic activities Usually, the dislocated patella displaces to the lateral side and exhibits a significant deformity. Splint the knee in the position in which you find it.
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Injuries of the Tibia and Fibula Tibia (shinbone) is the larger of the two leg bones, and the fibula is the smaller. Fracture may occur at any place between the knee joint and the ankle joint. Usually, both fracture at the same time. Stabilize with a padded, rigid long leg splint or an air splint.
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Ankle Injuries (1 of 2) The ankle is a very commonly injured joint. Range from a simple sprain to severe fracture-dislocations Any ankle injury that produces pain, swelling, localized tenderness, or the inability to bear weight must be evaluated by a physician.
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Ankle Injuries (2 of 2) Management Dress all open wounds. Assess distal neurovascular function. Correct any gross deformity by applying traction. Before releasing traction, apply a splint.
Slide 121-

Foot Injuries (1 of 2) Can result in the dislocation or fracture of one or more of the tarsals, metatarsals, or phalanges of the toes Frequently, the force of injury is transmitted up the legs to the spine. If you suspect a foot dislocation, assess for pulses and motor and sensory functions.
Slide 122-

Foot Injuries (2 of 2) Injuries of the foot are associated with significant swelling but rarely with gross deformity. To splint the foot, apply a rigid padded board splint, an air splint, or a pillow splint. Leave the toes exposed.
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Compartment Syndrome (1 of 2) If you have a pediatric patient with a fracture below the elbow or knee, be on the lookout for these signs/symptoms: Extreme pain Decreased pain sensation Pain on stretching of affected muscles Decreased power
Slide 124-

Compartment Syndrome (2 of 2) If you suspect the patient has compartment syndrome, splint the affected limb and transport immediately. Reassess neurovascular status frequently during transport. Compartment syndrome must be managed surgically.
Slide 125-

Amputations (1 of 2) Surgeons can occasionally reattach amputated parts. Make sure to immobilize the part with bulky compression dressings. Do not sever any partial amputations. Control any bleeding to the stump. If bleeding cannot be controlled, apply a tourniquet.
Slide 126-

Amputations (2 of 2) With a complete amputation, wrap the clean part in a sterile dressing and place it in a plastic bag. Put the bag in a cool container filled with ice. The goal is to keep the part cool without allowing it to freeze or develop frostbite.
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Strains and Sprains (1 of 4) Strains Often no deformity is present and only minor swelling is noted. Patients may complain of: Increased sharp pain with passive movement Severe weakness of the muscle Extreme point tenderness
Slide 128-

Strains and Sprains (2 of 4) Strains (cont’d) General treatment is similar to that of fractures and includes the following: Rest; immobilize or splint injured area Ice or cold pack over the injury Compression with an elastic bandage Elevation Reduced or protected weight bearing Pain management as soon as practical
Slide 129-

Strains and Sprains (3 of 4) Sprains Usually result from a sudden twisting of a joint beyond its normal range of motion Majority involve the ankle or the knee Err on the side of caution and treat every sprain as if it is a fracture.
Slide 130-

Strains and Sprains (4 of 4) Sprains (cont’d) Sprains are typically characterized by: Pain Swelling at the joint Discoloration over the injured joint Unwillingness to use the limb Point tenderness General treatment is the same for strains.