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Trauma Overview: Motor Vehicle Collisions

Trauma

Trauma Overview: Motor Vehicle Collisions

Background

  1. Trauma causes 50% of all pediatric mortality
  2. For every pediatric death, 40 others are hospitalized and 1140 need emergency treatment
  3. Motor vehicle collisions (50%) > falls (25%) > burns (5%)
  4. Most common cause of fatalities are due to Head injuries
  5. In pediatrics, blunt trauma accounts for 90%, whereas penetrating trauma is 10%
  6. Male >> female (2:1)

Know normal vital signs for Pediatric Patients

  • Table 1. Vitals by Age
    Age Heart Rate (HR) Respiratory Rate SBP (mmHg) DBP (mmHg)
    Newborn 90-180 30-50 60 +/- 10 37 +/- 10
    1-5 Months 100-180 30-40 80 +/- 10 45 +/- 15
    6-11 Months 100-150 25-35 90 +/- 30 60 +/- 10
    1 Year 100-150 20-30 95 +/- 30 65 +/- 25
    2-3 Years 65-150 15-25 100+/- 25 65 +/- 25
    4-5 Years 65-140 15-25 100 +/- 20 65 +/- 15
    6-9 Years 65-120 12-20 100 +/- 20 65 +/- 15
    10-12 Years 65-120 12-20 110 +/- 20 70 +/- 15
    13+ Years 55-110 12-18 120 +/- 20 75 +/- 15

"Broken Windshield": Head and Spine Trauma

  1. Background
    • Direct blow of the head to the windshield
    • Head injuries (most common types of injury in MVCs) may include
      • Skull fractures
      • Intracranial hemorrhage
      • Cerebral contusions/edema
      • Concussions
  2. Head Injuries
    • Skull Fractures
      • Linear skull fractures vs depressed skull fractures
        • Most MVC patients have large scalp hematomas, palpable step-offs or bony deformities
      • Basilar skull fractures
        • Battle sign (posterior auricular or mastoid hematomas)
        • Hemotympanum
        • Cerebrospinal fluid otorrhea or rhinorrhea
        • Periorbital ecchymoses (“raccoon eyes”)
        • Cranial nerve palsies
        • Often associated with intracranial injury even if GCS of 15 and normal neurological exam
    • Intracranial injury
      • Presentation
        • Altered mental status
        • Focal neurological findings on physical exam
      • Focal lesions
        • Epidural
        • Subdural
        • Intraparenchymal
      • Diffuse injuries
        • Cerebral edema
        • Diffuse axonal injury
          • Injury resulting from acceleration and deceleration forces
          • Estimated up to 40% of children with severe traumatic brain injury
    • Diagnostics
      • CT of head
        • GCS < 14
        • Altered level of consciousness
        • Palpable skull fracture
      • Observation for several hours versus head CT
        • Nonfrontal scalp hematoma
        • Loss of consciousness > 5 sec
        • Severe mechanism of injury
          • Rollover
          • Ejection from motor vehicle
          • Death of another passenger
        • Not acting normally
  3. Spine Injuries
    • Cervical Spine injury
      • Pediatric anatomy increases the risk of injuries of the cervical spine
        • Relatively larger heads than bodies
        • Weaker cervical musculatures
        • Increased ligamentous laxity
        • Immature vertebral joints with horizontal articular facets
      • Children < 8 years old are more likely to sustain injuries to the upper cervical spine
      • Children under the age of 2 rarely have cervical spine injuries
      • Clear Cervical spine
        • Reliable physical examinations
        • Awake, alert and cooperative with GCS of 15
      • Note: increased risk in children with certain medical conditions
        • Down syndrome, Klippel-Feil syndrome, and specific mucopolysaccharidosis
      • PECARN predictors of cervical spine injury in children
        • Altered mental status
        • Focal neurologic deficit
        • Complaint of neck pain
        • Torticollis
        • Predisposing medical condition
        • Substantial injury to the torso
        • High risk motor vehicle crash
      • Imaging
        • Plain radiographs (sensitivity of 90% for identifying injuries)
        • Consider CT
          • Abnormal physical examination findings
          • Abnormal radiographs
          • Inadequate cervical spine radiographs
          • Inconclusive plain radiographs
          • Normal radiographs with persistent pain
        • MRI
          • Neurologic symptoms with normal cervical spine Xray and CT
    • Thoracolumbar Spine injury
      • Low incidences in children
      • “Seat-belt syndrome”
        • Lumbar compression fractures
        • Chance fractures: flexion-distraction injuries
          • Due to flexion-distraction injuries
          • Posterior spinal ligaments rupture
          • Transverse fractures of the spinous processes, pedicles and vertebral bodies
    • General Considerations
      • For any concerns of spine injuries
        • Obtain CT of the respective spine without contrast
        • Keep patient calm and immobilized
      • Spinal Cord Injury Without Radiographic Abnormality (SCIWORA)
        • Definition
          • Spinal cord injuries that occur without identifiable bony or ligamentous injury on plain radiographs or computed tomography scans
        • Presentation
          • Vital sign abnormalities
          • Neck pain
          • Back pain
          • Focal neurologic deficits (numbness, tingling, sensory deficits, weakness, or paralysis)
          • Transient deficits or resolved deficits
        • Majority of cases in cervical spine region due to
          • Hyperextension injury
          • Hyperflexion injury
          • Longitudinal distraction injury
          • Spinal cord infarction
        • If concern for SCIWORA, patients should undergo imaging with MRI
  4. Facial Fractures
    • Bony facial injuries are associated with substantial morbidity
    • Facial fractures are associated with a 63% higher mortality rate
    • Most common facial fractures
      • Mandible (32.7%)
      • Nasal (30.2%)
      • Maxillary and zygoma (82.6%)
    • Associated Injuries
      • Facial soft tissue injury
      • Ocular injury
      • Brain injury
      • Skull base fracture
    • Obtain facial and orbital CT for any significant facial injuries
    • Mandibular fractures: panoramic radiography is the study of choice

"Knee Hits Dashboard": Knee and Pelvic Trauma

  1. Knee Trauma
    • Hits dashboard and can cause:
      • Knee dislocation
      • Patella fracture from direct impact
      • Popliteal disruption
    • Two impact points against the dashboard - tibia and femur
      • If tibia hits dashboard and stops first
        • Femur remains in motion and overrides it
        • Dislocated knee, torn ligaments, tendons, and other supporting structures
        • Frequent association with injury to the popliteal artery
          • May lead to blood clots and decreased blood flow to the area distal to the knee
          • Establish tissue perfusion immediately
      • If femur is point of impact
        • Energy is absorbed on the bone shaft causing a fracture
        • Continued forward motion of the pelvis onto the femur that remains intact can override the femoral head
          • Causes posterior dislocation of the acetabular joint
      • Neurovascular compromise possible
        • Popliteal artery
        • Iliac artery
        • Monitor pulses distal from the injury
    • Treatment for physeal fractures
      • Non-displaced
        • Immobilization
      • Displaced
        • Intra-articular Salter-Harris type III/IV: anatomic open reduction internal fixation
        • Extra-articular fractures: varus/valgus realignment
  2. Pelvic Trauma
    • Compression fractures may occur when increased pressure is placed on the lateral walls of the pelvis
      • The pelvic bones or the ring of the pelvis are affected and usually 2 fractures occur in the ring
    • Shear fractures
      • Involve ilium and sacral area
      • Tears joint open
    • Anterior to the symphysis pubis compression fracture occurs after the compression is over and pushing in on both sides fractures symphysis
    • Obtain X-rays of the hip, pelvis, and femur
    • If concerns regarding the vascular status: consider a CT with contrast for completeness

"Rollover": Lower Body Crush Injuries

  1. Background
    • Lower body may be trapped under the vehicle (crush, degloved, mangled injury)
    • Pulseless extremities: increase the likelihood of vascular injury
    • Increased likelihood of significant complications
      • Bone and nerve injuries (79%)
      • Fasciotomies (27%)
      • Amputations (13%)
    • Vascular injury of the extremity might lead to significant morbidity/mortality
  2. Pelvic Fractures
    • Patients with suspected pelvic fracture need rapid and specialized care
      • Increased risk of internal hemorrhage and other associated injuries
    • Place a pelvic binder immediately
    • Evaluate vitals immediately
      • Patients with pelvic fractures who present in shock have a mortality of 30-50%
    • Hemorrhage may be from
      • Fractured bone
      • Disrupted veins
      • Arteries
    • Consider multi-cavity injury with hemorrhage in the chest or abdomen as well as the pelvis and long bones
    • It is essential to have a multidisciplinary approach
    • Manage with transfusion, anticoagulants, and therapeutic hypothermia
      • Up to 40% of pelvic fractures require angio-embolization
        • With bleeding from anterior branches of the internal iliac artery (obturator and pudendal arteries) with a lateral compression pattern injury
      • All patients will require a CT scan to thoroughly evaluate the extent of the pelvic injury
  3. Lower Extremity Fractures
    • Extremities become trapped, crushed and mangled
      • Impact from multiple sides of the vehicle and portions of the vehicle becoming compressed
    • Upon extrusion of the patient, injuries may worsen
    • Assessing for distal pulses, deformities, and vital signs is important in assessing the extent of the injury
      • Especially from a neurovascular point
    • Plain radiographs are an ideal starting point if the patient is hemodynamically stable
  4. Compartment Syndrome
    • Incidence of compartment syndrome from tibial shaft fractures is 11.6% in children older than 14 years of age involved in an MVA
    • Assess for the five P's: Pallor, Pain, Paresthesia, Poikilothermic, Pulseless
    • Consider compartment syndrome in the forearm, tibial injuries, and the foot
    • In trauma, rhabdomyolysis may be the result of the trauma, therefore the following labs should be evaluated
      • Creatine phosphokinase (CPK)
      • Renal function studies
      • Urinalysis
      • Urine myoglobin
    • Intracompartmental pressure measurements
      • Standard for diagnosis of compartment syndrome
      • Should be done immediately when suspecting compartment syndrome as a diagnosis
    • Imaging may be helpful to rule out other etiologies
      • Standard radiography will assist with determining fractures
      • CT may be useful if suspecting pelvic or thigh compartment syndrome
    • Treatment of choice: early decompression

"Broken Steering Wheel"

  1. Background
    • Thoracic trauma is common and is associated with a high morbidity
      • About 20% of all trauma deaths involve chest injury
    • Most chest wall and intrathoracic injuries do not require major surgical intervention; can be managed with
      • Simple tube thoracostomy
      • Mechanical ventilation
      • Aggressive pain control and other supportive care
    • Two types of blunt force from MVCs that cause thoracic injury
      • Compression
        • Rib fractures when force exceeds the thoracic cage strength
        • Maximal weakness of the chest wall is at 60° rotation from the sternum where the ribs are the flattest
      • Shearing
        • Causes soft tissue and vascular injury from rapid acceleration or deceleration
        • Tearing or rupture of vascular organs and blood vessels can occur, and be lethal (e.g., aortic transection)
  2. Rib Fractures
    • Background
      • In children, rib fractures indicate a much higher force causing the injury than in adults
        • Children's chest walls are more compliant than adults
    • Diagnostics
      • History/Physical Exam
        • Complain of pain on inspiration and dyspnea
        • Tenderness on palpation
        • Crepitus
        • Chest wall deformity
      • Imaging
        • Rib radiographs
        • Bedside ultrasound
    • Treatment
      • Pain control
        • NSAIDs
        • Narcotics
      • Admission if ≥ 3 ribs fractured
  3. Common Injuries Associated With Rib Fractures
    • Aortic Injury
      • Etiology/Risk Factors
        • Rapid deceleration injury as in an MVC
        • Approximately 95% of patients die before reaching the hospital
      • Diagnostics
        • Upper extremity hypertension, interscapular murmurs, diminished/absent pulses in upper or lower extremities
          • If suspected obtain a radiograph
        • Radiographic signs of mediastinal pathology
          • Straightening of the mediastinal borders with loss of the anteroposterior window
          • Mediastinal diameter greater than that of the hemothorax
          • Right shift of on orogastric tube off the vertebral column
        • Radiographic signs of aortic disruption
          • Widened mediastinum
          • Left pleural effusion
          • Apical capping
          • Depression of the left main bronchus
          • Rightward shift of an orogastric tube off the vertebral column
          • Fractures of the first or second rib or scapula
        • Diagnostic procedure of choice
          • Aortography if stable
          • Computed tomography alternative
      • Treatment
        • Open repair surgical intervention
    • Pulmonary Contusions
      • Most common pulmonary injury
        • From high energy trauma on lung parenchyma
        • Can occur in pediatric patients without rib fracture often
      • Diagnostics
        • History/Physical Exam
          • Hypoxemia
          • Hypoventilation
        • Imaging
          • Consolidation on chest radiography
          • No need for computed tomography
      • Treatment
        • Aggressive pulmonary toilet
        • Pain management
        • Oxygen for hypoxia
    • Pneumothorax
      • Diagnostics
        • Common in children with blunt trauma
        • Decreased/absent breath sounds
        • Hypotension usually with tension pneumothorax
      • Immediate Treatment
        • Needle decompression through the second intercostal space at midclavicular line
        • Tube decompression
    • Hemothorax
      • Diagnostics
        • History and Physical Exam
          • Common in children with blunt trauma
          • Decreased/absent breath sounds
          • Hypotension with massive hemothorax
      • Immediate treatment
        • Needs evacuation with tube decompression
    • Flail chest
      • Diagnostics
        • History/Physical Exam
          • Most serious of blunt chest wall injuries
          • Upon inspiration, flail segment is pulled inward by negative intrathoracic pressure
          • With exhalation, positive pressure forces segment to protrude outward
          • Results in ventilation-perfusion mismatch, atelectasis, and progressive shunting
        • Imaging
          • Chest radiograph or chest CT is necessary
      • Treatment
        • Positive pressure Oxygen
        • Pain control
  4. Sternal Fracture
    • Diagnostics
      • History/Physical Exam
        • Localized sternal pain
        • Dyspnea is present in 15-20%
        • Assess for other complications
          • Rib fractures
          • Flail chest
          • Pneumothorax, hemothorax
          • Pulmonary contusion
          • Blunt cardiac injury
          • Pericardial tamponade
          • Vascular injury
        • Pain over fracture site and readily reproducible
        • Crepitation or displacement is rare, unless sternum is disrupted with unstable fragments
        • Soft-tissue edema or ecchymosis in 40-55% of patients
      • Imaging
        • Radiographs: with sternal views to enhance visualization of sternum
        • Bedside ultrasound: is as sensitive as plain radiographs
        • CT scan: most common imaging to make the diagnosis
        • Electrocardiogram: to assess for cardiac contusion
    • Treatment
      • Supportive oxygen
      • Cardiac monitoring
      • Intravenous access
      • Initial analgesia is treatment of choice
      • Encourage deep breathing to decrease pulmonary complications
  5. Cardiac Contusion
    • Background
      • Myocardial contusion is the most common of cardiac injuries
      • Bruising due to rupture or hemorrhage of small vessels in the myocardium
      • Right ventricle is at greatest risk due to its location
      • Cardiac output may decrease
        • Valvular dysfunction
        • Decreased preload
        • Increased afterload
        • Direct injury of the tricuspid or mitral valve
    • Diagnostics
      • History/Physical Exam
        • Pain in the ribs or breastbone
        • Palpitations
        • Syncope
        • Nausea or vomiting
        • Short of breath
        • Shock
          • Needs to be differentiated from tension pneumothorax, neurogenic, and hypovolemic
      • Imaging
        • Echocardiography shows
          • Ischemic changes
          • Atrial premature contractions
          • Ventricular premature contractions
          • Wall motion abnormalities
      • Other Tests/Criteria
        • CK-MB isoenzyme may be elevated
        • Electrocardiogram
          • Dysrhythmias
          • Diffuse changes in the ST segment or T waves
          • ST segments may be elevated or depressed
          • T wave may be flattened or inverted
          • Ectopy
        • AAST Injury Scale
          • Grade I
            • Blunt cardiac injury with minor EKG abnormality
              • Nonspecific ST of T wave changes or
              • Premature atrial or ventricular contractions or
              • Persistent sinus tachycardia
            • Blunt or penetrating pericardial wound without cardiac injury, tamponade, or cardiac herniation
          • Grade II
            • Blunt cardiac injury with heart block or ischemic changes without cardiac failure
            • Penetrating tangential cardiac wound, up to but not extending through endocardium, without tamponade
          • Grade III
            • Blunt cardiac injury with sustained or multifocal ventricular contractions
            • Blunt or penetrating cardiac injury with
              • Septal rupture or
              • Pulmonary or tricuspid incompetence or
              • Papillary muscle dysfunction or
              • Distal coronary artery occlusion without cardiac failure
            • Blunt pericardial laceration with cardiac herniation
            • Blunt cardiac injury with cardiac failure
            • Penetrating tangential myocardial wound, up to but not through endocardium, with tamponade
          • Grade IV
            • Blunt or penetrating cardiac injury with
              • Septal rupture or
              • Pulmonary or tricuspid incompetence or
              • Papillary muscle dysfunction or
              • Distal coronary artery occlusion producing cardiac failure
            • Blunt or penetrating cardiac injury with aortic or mitral incompetence
            • Blunt or penetrating cardiac injury of the right ventricle, right or left atrium
          • Grade V
            • Blunt or penetrating cardiac injury with proximal coronary artery occlusion
            • Blunt or penetrating left ventricular perforation
            • Stellate injuries, less than 50% tissue loss of the right ventricle, right or left atrium
          • Grade IV
            • Blunt avulsion of the heart
            • Penetrating wound producing more than 50% tissue loss of a chamber
    • Treatment
      • Manage hypotension
      • If stable admission for cardiac monitoring
  6. Upper Abdominal Injuries
    • Background
      • Difficult to assess initially because the abdominal exam is often unreliable and inaccurate with high rate of missed abdominal injuries
        • Serial abdominal exams are essential to exclude evolving abdominal problem
      • Physical exam of abdominal wall may show indications of abdominal injury
        • Abrasions and contusions (seat belt sign)
        • Abdominal distention
        • Tenderness
          • Aerophagia leading to massive gastric distention
          • Hemoperitoneum
    • Splenic Injury
      • Background
        • Most frequently injured intra-abdominal organ in children
        • Results from direct blow to the left upper quadrant
      • Diagnostics
        • History/Physical Exam
          • Left shoulder pain (Kehr’s sign), from diaphragmatic irritation by blood from the spleen
          • Left upper quadrant abrasions
          • Tenderness
          • Abdominal distension
        • Labs/Test
          • CBC +Diff, CMP, Type and Cross
          • Evaluate amount of blood loss
        • Imaging
          • Abdominal/pelvic computed tomography scan if patient is stable
      • Treatment
        • If hemodynamically stable
          • Supportive care
        • If hemodynamically unstable despite aggressive resuscitation
          • Exploratory laparotomy
    • Liver Injury
      • Background
        • Second most common injured organ
        • More severe than splenic injuries because they tend to re-bleed
      • Diagnostics
        • History/Physical Exam
          • Right shoulder pain (Kehr’s sign)
          • Upper abdominal or right lower chest pain
        • Labs/Tests
          • CMP – elevated transaminases are highly suggestive of liver injury
        • Imaging
          • Abdominal/Pelvic CT mainstay of evaluation
      • Treatment
        • Typically nonoperative with careful serial reexaminations
        • Indications for nonoperative management
          • Hemodynamic stability
          • Absence of peritoneal signs
        • Indications for exploratory laparotomy
          • Hemodynamic instability
          • Transfusion required within 2 hours of presentation
          • Associated retrohepatic vena cava or major hepatic vein trauma
    • Pancreatic Injuries
      • Background
        • Rare; most are missed or underestimated initially
        • Mechanism: compression of the pancreas against the rigid spinal column
        • If isolated injury there may be a delay of hours to days before the onset of abdominal symptoms
      • Diagnostics
        • History/Physical Exam
          • Abdominal pain
          • Nausea
          • Vomiting
          • Fever
        • Labs/Tests
          • Lipase > 1800 IU/L correlates with major pancreatic injury
        • Imaging
          • Abdominal CT identify traumatic injury to the pancreas
            • Visualized transection
            • Thickening of the gland with edema
            • Peri-pancreatic fluid collections
            • Ductal dilatation
      • Treatment
        • Determined by injury severity, location, and the presence or absence of associated abdominal injuries
        • Currently no clear recommendation in pediatric patients
        • Pseudocyst formation is the main complication of nonoperative management
    • Duodenal Injuries
      • Background
        • Rare type of injury
        • Two forms
          • Perforation
          • Hematoma
        • Force of trauma disrupts the vessels between the submucosa and muscularis
          • Causes development of an intramural hematoma, which may obstruct the duodenal lumen
      • History/Physical Exam
        • Abdominal pain
        • Nausea
        • Vomiting
        • Hematemesis / bilious emesis
        • Abdominal distention
        • High output in the nasogastric tube
      • Labs/Tests
        • Elevated serum transaminases, amylase, and lipase
      • Imaging
        • CT is only diagnostic in 60% of cases of duodenal perforation
      • Treatment
        • Nasogastric decompression
        • Surgical
    • Small Intestine Injuries
      • Background
        • Much less frequently injured than either the spleen or liver
        • Only 2-5% of children with blunt abdominal trauma will have intestinal injury
        • Jejunum is the most commonly injured segment of the bowel > duodenum > ileum
      • Diagnostics
        • History/Physical Exam
          • Difficult to diagnose
          • Progressive symptoms
          • Peritonitis
          • Fever
          • Tachycardia
          • Diminished urine output over 12-24 hours
        • Labs/Tests
          • CBC +Diff
            • Serial increase of WBC
          • CMP
            • Serial Liver transaminases
        • Imaging
          • Abdominal radiography
            • Intra-abdominal air
          • CT abdomen
            • Nonspecific bowel injury
            • Moderate-to-large amounts of unexplained fluid
            • Unexplained extraluminal air
            • Bowel wall enhancement
            • Bowel wall thickening
            • Bowel dilatation
            • Extravasation of contrast
            • Multiple fluid-filled loops of bowel
      • Treatment
        • Broad spectrum antibiotics
        • Intravenous fluid resuscitations
        • Admit
        • Pain management
          • Oral or IV NSAIDS
          • Oral and IV narcotics
          • Intercostal nerve blocks with local anesthetics

Rear-End Collision

  1. Cervical Spine Hyperextension Injury
    • Background
      • 25% of cervical spine injuries
      • Subtle radiographic signs - lateral radiograph and sagittal CT reformations
        • Mild anterior intervertebral disk space widening
        • Anterior vertebral body avulsion fragments
        • Facet malalignment
    • Diagnostics
      • History/Physical Exam
        • Posterior neck pain on palpation of spinous processes
          • Limited range of motion associated with pain
          • Weakness, numbness or paresthesias along affected nerve roots
        • Spinal shock
          • Flaccidity
          • Areflexia
          • Loss of anal sphincter tone
          • Fecal incontinence
          • Priapism
          • Loss of bulbocavernosus reflex
        • Neurogenic shock
          • Hypotension
          • Paradoxical bradycardia
          • Flushed, dry and warm peripheral skin
        • Autonomic dysfunction
          • Ileus
          • Urinary retention
          • Poikilothermia
      • Imaging
        • Cervical spine radiography
        • CT of the cervical spine
    • Treatment
      • Keep in cervical spine precautions with neck brace
      • Consultation of orthopedic or neurosurgeon
  2. Central Cord Syndrome
    • Background
      • Acute cervical spinal cord injury with greater impairment of motor function in the upper extremities than in the lower ones
      • Bladder dysfunction and variable amount of sensory loss below the level of injury
    • Diagnostics
      • History/Physical Exam
        • Upper and lower extremity weakness
        • Varying degrees of sensory loss
        • Pain and temperature sensations
          • Light touch and position may be impaired below the level of injury
        • Neck pain and urinary retention
        • Physical exam usually limited to the neurological system
          • Upper motor neuron weakness in the upper and lower extremities
          • Impairment in the upper extremities > lower extremities
          • Sensory loss is variable
          • Muscle stretch reflexes may be absent initially, but may return
      • Imaging
        • MRI
          • Direct evidence of spinal cord impingement from bone, a disc, or a hematoma
        • CT of the cervical spine
          • Spinal canal compromise and allows indirect approximation of the degree of spinal cord impingement
        • Radiography
          • Fractures and dislocations
    • Treatment
      • Neck stabilization
      • Consultation of orthopedic or neurosurgeon

Seat Belt Trauma

  1. Lap Belts
    • Background
      • Often due to lap belts worn incorrectly
        • Lumbar spine fracture
        • Low incidences in children
      • “Seat-belt syndrome”
        • Lumbar compression fractures
        • Chance fractures
          • Flexion-distraction injuries
          • Due to flexion-distraction injuries
          • Posterior spinal ligaments rupture
      • Transverse fractures of the spinous processes, pedicles, and vertebral bodies
    • Hollow Viscus Injuries
      • Duodenal Injuries
        • Background
          • Rare type of injury
          • Two forms
            • Perforation
            • Hematoma
          • Force of trauma
            • Disrupts the vessels between the submucosa and muscularis
              • Causes development of an intramural hematoma, which may obstruct the duodenal lumen
        • Diagnostics
          • History/Physical Exam
            • Abdominal pain
            • Nausea
            • Vomiting
            • Hematemesis / bilious emesis
            • Abdominal distention
            • High output in the nasogastric tube
          • Labs/Tests
            • Elevated serum transaminases, amylase, and lipase
          • Imaging
            • CT is only diagnostic in 60% of cases of duodenal perforation
        • Treatment
          • Nasogastric decompression
          • Surgical
      • Small Intestine Injury
        • Background
          • Much less frequently injured than either the spleen or liver
          • Only 2-5% of children with blunt abdominal trauma will have intestinal injury
          • Jejunum is the most commonly injured segment of the bowel > duodenum > ileum
        • Diagnostics
          • History/Physical Exam
            • Difficult to diagnose
            • Progressive symptoms
            • Peritonitis
            • Fever
            • Tachycardia
            • Diminished urine output over 12-24 hours
          • Labs/Tests
            • CBC +Diff
              • Serial increase of WBC
            • CMP
              • Serial liver transaminases
          • Imaging
            • Abdominal radiography
              • Intra-abdominal air
            • CT abdomen
              • Nonspecific bowel injury
              • Moderate-to-large amounts of unexplained fluid
              • Unexplained extraluminal air
              • Bowel wall enhancement
              • Bowel wall thickening
              • Bowel dilatation
              • Extravasation of contrast
              • Multiple fluid-filled loops of bowel
        • Treatment
          • Broad-spectrum antibiotics
          • Intravenous fluid resuscitations
          • Admit
  2. 3-point Belt Restraints
    • Rib Fractures
      • Background
        • In children rib fractures indicate a much higher force causing the injury
          • Pediatric chest walls are more compliant than adults
      • Diagnostics
        • History/Physical Exam
          • Complain of pain on inspiration and dyspnea
          • Tenderness on palpation
          • Crepitus
          • Chest wall deformity
        • Imaging
          • Rib radiographs
          • Bedside ultrasound
      • Treatment
    • Clavicle Fractures
      • Background
        • Common and heals easily the majority of time
          • Some complications are possible
        • Classification system by Allman
          • Group I fractures: Middle third injuries
          • Group II fractures: Distal third injuries
          • Group III fractures: Proximal third injuries
      • Diagnostics
        • History/Physical Exam
          • Cradling the injured extremity
          • Shortened shoulder
          • Swelling, ecchymosis and tenderness over the clavicle
          • Abrasion over the clavicle
          • Crepitus from the fracture
          • Difficulty breathing
          • Tenting and blanching of the skin at the site of the fracture
          • Neurovascular injuries
        • Imaging
          • Clavicular radiographs
          • Bedside ultrasound
          • Arteriography if suspect vascular injury
      • Treatment
        • Vast majority heal with nonoperative management
          • Figure-of-eight brace or shoulder sling
        • Surgical indications (orthopedic surgery consult)
          • Complete fracture displacement
          • Severe displacement causing tenting of the skin with risk of puncture
          • 2 cm of shortening of the fractures
          • Comminuted fractures with a z-shaped fragment
          • Neurovascular compromise
          • Displaced medial clavicular fractures
          • Polytrauma
          • Open fractures
          • Concomitant glenoid neck fracture
          • Fracture with interposed muscle
    • Sternal Fractures
      • Diagnostics
        • History/Physical Exam
          • Localized sternal pain
          • Dyspnea is present in 15-20%
          • Assess for other complications
            • Rib fractures
            • Flail chest
            • Pneumothorax, hemothorax
            • Pulmonary contusion
            • Blunt cardiac injury
            • Pericardial tamponade
            • Vascular injury
          • Pain over fracture site and readily reproducible
          • Crepitation or displacement is rare, unless sternum is disrupted with unstable fragments
          • Soft-tissue edema or ecchymosis in 40-55% of patients
        • Labs/Tests
          • Electrocardiogram to assess for cardiac contusion
        • Imaging
          • Radiographs with sternal views to enhance visualization of sternum
          • Bedside ultrasound is as sensitive as plain radiographs
          • CT scan is the most common imaging to make the diagnosis
      • Treatment
        • Supportive oxygen
        • Cardiac monitoring
        • Intravenous access
        • Initial analgesia is treatment of choice
        • Encourage deep breathing to decrease pulmonary complications
    • Pulmonary Contusions
      • Background
        • Most common pulmonary injury
        • From high energy trauma on lung parenchyma
        • In pediatric patients often without rib fracture
      • Diagnostics
        • History/Physical Exam
          • Hypoxemia
          • Hypoventilation
        • Imaging
          • Consolidation on chest radiography
          • No need for computed tomography
      • Treatment

Related Topics

References

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Contributor(s)

  1. Hughes, Michelle, DO

Updated/Reviewed: November 2023