Advanced Trauma Life Support ATLS Student Course Manual 2018

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CHAPTER 8 n Musculoskeletal Trauma
Many patients who sustain blunt trauma
also incur injuries to the musculoskeletal
system. These injuries often appear dramatic,
but only infrequently cause immediate threat to life
or limb. However, musculoskeletal injuries have
the potential to distract team members from more
urgent resuscitation priorities. First, clinicians
need to recognize the presence of life-threatening
extremity injuries during the primary survey and
understand their association with severe thoracic
and abdominal injuries. The provider must also be
familiar with extremity anatomy to be able to protect
the patient from further disability, and anticipate and
prevent complications.
Major musculoskeletal injuries indicate that the
body sustained significant forces (n FIGURE 8-1). For
example, a patient with long-bone fractures above
and below the diaphragm is at increased risk for
associated internal torso injuries. Unstable pelvic
fractures and open femur fractures can be accompanied
by brisk bleeding. Severe crush injuries cause the
release of myoglobin from the muscle, which can
precipitate in the renal tubules and result in renal
failure. Swelling into an intact musculofascial space
can cause an acute compartment syndrome that,
if not diagnosed and treated, may lead to lasting
impairment and loss of the extremity. Fat embolism, an
uncommon but highly lethal complication of long-bone
fractures, can lead to pulmonary failure and impaired
cerebral function.
Musculoskeletal trauma does not warrant a reordering
of the ABCDE priorities of resuscitation,
but its presence does pose a challenge to clinicians.
Musculoskeletal injuries cannot be ignored and treated
at a later time; rather, clinicians must treat the whole
patient, including musculoskeletal injuries, to ensure
an optimal outcome. Despite careful assessment,
fractures and soft tissue injuries may not be initially
recognized in patients with multiple injuries.
Continued reevaluation of the patient is necessary
to identify all injuries.
Primary Survey and
Resuscitation of
pAtients with Potentially
Life-Threatening
Extremity Injuries
During the primary survey, it is imperative to recognize
and control hemorrhage from musculoskeletal injuries.
Potentially life-threatening extremity injuries include
major arterial hemorrhage, bilateral femoral fractures,
and crush syndrome. (Pelvic disruption is described in
Chapter 5: Abdominal and Pelvic Trauma.)
Deep soft-tissue lacerations may involve major
vessels and lead to exsanguinating hemorrhage.
Hemorrhage control is best achieved with direct
pressure. Hemorrhage from long-bone fractures can
be significant, and femoral fractures in particular
often result in significant blood loss into the thigh.
Appropriate splinting of fractures can significantly
decrease bleeding by reducing motion and enhancing
the tamponade effect of the muscle and fascia. If the
fracture is open, application of a sterile pressure
dressing typically controls hemorrhage. Appropriate
fluid resuscitation is an important supplement to these
mechanical measures.
Pitfall
Blood loss from
musculoskeletal
injuries is not
immediately
recognized.
prevention
• Recognize that femur
fractures and any open
long-bone fractures
with major soft-tissue
involvement are potential
sites of significant
hemorrhage.
Major Arterial Hemorrhage and
Traumatic Amputation
n FIGURE 8-1 Major injuries indicate that the patient sustained
significant forces, and significant blood loss is possible.
Penetrating extremity wounds can result in major
arterial vascular injury. Blunt trauma resulting in
an extremity fracture or joint dislocation in close
proximity to an artery can also disrupt the artery. These
injuries may lead to significant hemorrhage through
the open wound or into the soft tissues. Patients with
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