Musculoskeletal 2 Flashcards
(58 cards)
What is a Contusion?
- Soft tissue injury produced by blunt force
- Pain, swelling, and discoloration: ecchymosis
What is a Sprain?
- Injury to ligaments and supporting muscle fiber around a joint
- Pain, edema, tenderness, severity graded according to ligament damage and joint stability
What is a Strain?
- Pulled muscle injury to the musculotendinous unit
- Pain, edema, muscle spasm, ecchymosis, loss of function, graded first, second, & third degree
What is a Dislocation?
- Articular surfaces of the joint are not in contact/alignment
- Traumatic dislocation: medical emergency
- Pain, change in contour, axis, and length of limb, loss of mobility
What is a Subluxation?
- Partial or incomplete dislocation
- Does not cause as much deformity as a complete dislocation
Why should a dislocation be reduced immediately?
Can cause avascular necrosis
What is Acute Compartment Syndrome?
Medical Emergency
Painful condition caused by increased pressure within a muscle compartment, restricting blood flow and potentially leading to muscle and nerve damage
What can lead to Acute Compartment Syndrome?
- Fracture
- Prolonged compression
- Crash injuries
- Burns
- Medical procedures
What are the clinical manifestations of Acute Compartment Syndrome?
- Severe Pain
- Tightness
- Numbness
- Tingling
- Potential weakness
- Paralysis
- Pallor
- May see blistering
- loss of pulses
What is a Rotator Cuff Tear?
A rip in a tendon that connects one of the four rotator muscles to the humeral head
The rotator cuff helps to raise and rotate the arm, stabilizes the humeral head, and keeps the arm in the shoulder socket
What are the clinical manifestations of a Rotator Cuff tear?
- Aching Pain
- Tenderness with palpation
- Difficulty sleeping on affected side
- Decreased ROM in limb
- Decreased strength
What are the different types of Open Fractures?
Type I: < 1 cm long clean wound
Type II: Larger wound with minimal soft tissue damage
Type III: Highly contaminated, extensive soft tissue injury, vascular injury, or traumatic amputation
Also called compound or complex fractures
What is a Transverse fracture?
A fracture straight across the bone shaft
What is an Oblique Fracture?
A fracture occuring at an angle across a bone (less stable than a transverse fracture)
What is a Comminuted Fracture?
A fracture in which bone has splintered into several fragments
What is an Avulsion Fracture?
A fracture in which a fragment of bone has been pulled away by a tendon and its attachment.
What is a Stress Fracture?
A fracture that results from repeated loading of bone and muscle
What are clinical manifestations of Fractures?
- Pain
- loss of function
- Deformity
- Shortening of extremity
- Crepitus: (when the area is palpated, can feel a crumbing sensation, it’s caused by the rubbing of bone fragments against each other)
- Edema and/or Ecchymosis: (may not develop for several hours after the injury, in higher severity cases we can see it develop within the hour)
- Muscle Spasm
What is the Medical Management of Fractures?
- Closed Reduction (w/o surgery - manual manipulation or traction of the bone)
- Open Reduction: (with surgery, ORIF - Open Reduction with Internal Fixation is common)
- Immobilization (usually 4-6 weeks, can be internal or external)
- Restore Function
Reduction should be done as soon as possible, before edema sets in or bone starts to heal
When is an External Fixator used with a fracture?
Open fractures with soft tissue damage
Discomfort is usually minimal and early mobility may be anticipated
Which types of fractures heal slower?
Comminuted, complex, and fractures of the mid-shaft heal slower
What factors may delay fracture healing?
- Inadequate fracture immobilization
- Inadequate blood supply to the fracture site or adjacent tissue
- Multiple traumas
- Extensive bone loss
- Infection
- Cigarette smoking and excessive alcohol use
- Malignancy
- Certain medications (e.g. corticosteroids)
- Older age
- Some disease processes (e.g. RA)
What are some potential complications of Casts, Splints, or Braces?
- Acute Compartment Syndrome (from increased pressure in confined space compromising blood flow)
- Pressure Injuries
- Disuse Syndrome (muscle atrophy and loss of strength)
How fast can ischemia and irreversible damage occur with Acute Compartment Syndrome?
Within hours