Trauma & Ortho Flashcards
In trauma, victims , life-threatening conditions are identified and corrected during the ________.
Primary Survey
First priority of the primary survey in ATLS?
Securing the airway
Goal of primary survey?
Treat conditions that constitute an immediate threat to life
The most common cause of upper airway obstruction in an unconscious patient is?
The tongue falls back into the posterior pharynx
Indications for early airway intervention ( preemptive intubation) in trauma?
- Penetrating injuries to the neck with an expanding hematoma.
- Evidence of chemical or thermal injury to the mouth , nares, or hypopharynx.
- Extensive subcutaneous air in the neck complex maxillofacial trauma.
- Airway bleeding
Zone inferior to the clavicle and manubrium sterni and encompasses all structures in the thoracic outlet?
Zone 1
Which of the following is a characteristic of zone I neck injury?
Is notorious for occult hemothorax / great vessel injury.
Indications for exploratory laparotomy in penetrating or blunt abdominal injury!
- Hemodynamically instability
- Peritonitis
- Evisceration
- Positive DPL
- Persistent drop in hct
Positive DPL finding in anterior abdominal stab wound?
- RBCs >100,000 /ml
- WBC >500 /ml
- Amylase >19 IU/L
4.Alkaline phosphatase >2IU/L - Bilirubin level >0.01 mg/dL
Maximum duration of pulse checks according to the ACLS guidelines
10 seconds
Required treatment for displaced femoral neck fractures in older adults due to the risk that it will disrupt the blood supply.
Prosthetic replacement
Fracture of C2 pedicles
Hangman’s fracture
Most common malignancy of the bone?
Osteosarcoma
Which peripheral nerve is compressed in a 30yo call center agent with carpal tunnel syndrome?
median nerve
Most common malignant presacral tumors?
Sacrococcygeal chondroma
Fasciotomy is indicated if?
- Gradient pressure <30mmHg ( Diastolic P- Compartment P)
- Absolute compartment P > 30mmHg
- Ischemic periods >6hrs
- Combined arterial and venous injuries
Life-threatening traumatic injuries?
- Cardiac tamponade
- Massive hemothorax
- Hemoperitoneum
- Unstable pelvic fractures
Damage control surgery goals?
- Limit enteric content spillage
- Prevent blood vicious cycle
- Control bleeding
- Prevent ischemia
Causes of bleeding after massive blood transfusion?
- Hypothermia
- Dilutional coagulopathy
- Fibrinolysis or Hypofibrinogenemia
- Platelet dysfunction
Commom nerve palsy after hip arthroplasty?
Sciatic nerve in over 90% of cases followed by femoral nerve
Complications of exploratory laparotomy?
- Infection
- Atelectasis
- Ileus
Causes of stress related hyperglycemia in post-op patients?
- Glucagon
- Epinephrine
- Glucocorticoid
Components of Glasgow Coma Scale
- Eye opening
- Verbal response
- Motor response
Invasive monitoring of patients fluid status
CVP ( Central Venous Pressure) when a large amounts of fluids are administered
Anterior knee pain involving the patella and retinaculum
Patellofemoral Pain Syndrome / Runners Knee
Structure kyphosis affecting the lower thoracic and upper lumbar regions?
- Gibbus deformity
- Tuberculous spondylitis / Potts Disease
Characteristics of inhalation injury?
- Increased metabolic demand
- Cause direct mucosal and heat injury to upper airways
Etiology of hematemesis that will require emergency management
- Esophageal varices
- Endoscopy with variceal band ligation should be carried out as soon as possible
Diagnostic modalities for lymphedema
- Lymphoscintigraphy
- Duplex ultrasound
Depth of chest compressions in CPR?
5.6cm (2-2.4inch ) deep
Number of rescue breaths per cycle?
2 breaths
Number of chest compressions per cycle
30 compressions
Number of cycles rescuers should perform for CPR to be effective?
5 cycles in 2 mins
Indication for laparotomy in penetrating abdominal trauma?
- Hemodynamic instability
- Obvious peritoneal signs
- Impaled foreign body
- Pneumoperitoneum
- Herniated abdominal organs
- GSW with evidence of intraperitoneal penetration
- Blood in orifices
The most commonly injured intra abdominal organ following a blunt abdominal trauma
Liver
Top 2 most commonly injured intra abdominal organs in blunt abdominal trauma?
Liver , Spleen
The order of priority in the management of a multiple injured patient is?
- Chest & Abdomen
- Head and Spine
- Limb
In healthy patients who bleed, how many percent of the blood volume is lost for them to manifest significant changes in the vital signs?
30%
Which of the following traumatic abdominal injuries necessitates immediate surgical exploration?
Eviscerated omentum
The following are indication for performing exploratory laparotomy among abdominal trauma patients?
- Omental evisceration
- Hemodynamically unstable
- Signs of peritonitis
Which of the following findings is consistent with disseminated intravascular coagulopathy?
- Elevated fibrin split products
- Thrombocytopenia
- Low fibrinogen level
- Prolonged prothrombin time
How long should a pulse check lasts?
Not more than 10 seconds
The most dreaded complication seen in elderly patients with displaced interthrocanteric hip fracture ?
Uncontrolled bleeding
The most malignancy involving bone?
Osteosarcoma
A 20yo basketball player tear in his anterior cruciate ligament manifested by pain and swelling is best treated with?
Arthroscopic surgery
Bilateral fracture of the pars interarticularis involving the C2 spine is called?
Hangman’s fracture
Treatment of choice for non-aligned femoral neck fracture is?
Total hip replacement
A fracture of the distal radius in which the distal fragment is dorsally displaced is?
Colle’s fracture
Inappropriate airway maneuver in managing a trauma patient with cervical spinal control ?
Head tilt
Most common indication for endotracheal intubation?
Altered mental status
Thoracostomy location in adults?
4th ICS or 5th ICS AAL
Definitive treatment of open pneumothorax?
Closere of the chest wall defect + closed tube thoracostomy remote from the wound
Definition of flial chest?
Fractures >/= 3 contiguous ribs in >/= 2 locations
Most appropriate treatment for pneumothorax?
Insertion of chest tube drainage of the pleural space
Physical exam findings of pneumothorax?
- Shortness of breath
- Unilateral chest pain
- Decreased breath sounds Ipsilateral side
- Hyperresonant on percussion of the ipsilateral side
Palpable pulse and corresponding approximate systolic blood pressure
- Carotid SBP >60
- Femoral SBP >70
- Radial SBP >80
Up down out
Hard signs of vascular injury
- Pulsatile hemorrhage
- Absent pulses
- Acute ischemia
Operation is mandatory if there are hard signs
Hemorrhage class of an anxious and confused patient with hypotension, PR 130, RR 35, and UO 10ml / hr
Class III
Cut off massive hemothorax in adults and children?
Adult >1,500ml
Children >25% blood volume
Excision of a portion of the pericardium which allows drainage of cardiac tamponade?
Subxiphoid pericardial window
Preferred test in the diagnosis of the cardiac tamponade?
Echocardiogram
Formula to compute GCS in intubated patients or if they are unable to verbalize?
GCS= E + DVS + M
DVS= (0.5M + 0.4E)
Signs of suspected basilar skull fracture ?
- Battle sign ( ecchymosis behind ear)
- Racoon eyes ( peri orbital ecchymosis)
- CSF rhinorrhea
- Otorrhea
Temporizing maneuver for patients in impending herniation while awaiting definitive surgical management that decreases cerebral blood flow?
Hyperventilation
6Ps of Compartment Syndrome?
- Pain
- Paresthesia
- Pallor
- Poikilothermy
- Paralysis
- Pulselessness
Distal radial fracture with volar angulation?
Smith’s Fracture
Colle’s fracture: Distal radial fracture with dorsal angulation
Proximal third ulnar fracture with dislocation of the radial head?
Monteggia fracture
Middle distal third radial fracture with the dislocation of the radioulnar joint?
Galeazzi fracture
Vertebra and its parts affected in Hangman’s fracture?
C2 pedicles
Type of fracture where the bone is broken into three or more fragments?
Comminuted fracture
Incomplete fracture in which the angulating force bends the cortex on the compression side and breaks it on the distraction site?
Greenstick fracture
General principles of radiographic examination of fractures and dislocations ?
- Two views at right angles
- Includes joints above and below area of injury
Restoration of normal alignment of bone via external manipulation of the fracture or dislocation?
Closed reduction
Use of superficial incision to directly visualize and manipulate fracture / dislocation?
Open reduction
Gustilo-Andersen open fracture classification of a fracture <1cm long with clean wound and evidence of vascular injury requiring repair. What grade?
IIIC
Presence of vascular injury elevates the fracture to Grade IIIC
Antibiotics used to grade II open fractures?
1st gen Cephalosporins + Aminoglycosides
Most common site of pressure injury ?
Ischial tuberosity 28%
Greater trochanter 18%
Sacrum 17%
Heel 9%
Causes of Type II necrotizing soft tissue infections?
a-hemolytic streptococcus or staphylococcus
Pro inflammatory mediators of shock? (7)
IL 1a/B
IL 2
IL 6
IL 8
Interferon
TNF
PAF
Anti-inflammatory mediators of Shock ? (5)
IL 4
IL 10
IL 13
Prostaglandin E2
TGFB