Trauma Flashcards
What is the major factor in overall outcome of varus impacted proximal humerus fractures?
Smoking status
There is an increased risk of ____ with intramedullary nail fixation of bisphosphonate-related femur fractures.
Iatrogenic fracture
Where is the ideal start point for a trochanteric femoral nail?
Just medial to the tip of the greater troch
What is the most common complication requiring reoperation in terrible triad injuries of the elbow?
Reduced range of motion/stiffness
What injury is commonly associated with a distal third spiral tibia shaft fracture?
Posterior mallelous fracture
Joint widening of ____ mm is commonly associated with a lateral meniscus injury.
6
Which subtalar dislocation is more likely to be open? medial or lateral?
lateral
What are the three injuries associated with a terrible triad injury of the elbow?
coronoid fracture, radial head fracture and posterolateral ulnohumeral dislocation
What associated soft-tissue knee injury is most commonly associated with tibial plateau fractures?
peripheral meniscal tears
What is the most likely metabolic or endocrine abnormality contributing to nonunion in elderly patients?
Vitamin D deficiency
Which factor has the greatest influence on stiffness during application of a uniplanar external fixator?
pin diameter
Which deformity is most likely after closed treatment and casting of a mid shaft tibial shaft fracture?
varus malunion
What is the 2-year mortality rate for a patient with end stage kidney disease who sustains a hip fracture?
45%
Which portion of the medial collateral ligament of the elbow can be released to address loss of flexion in a post-traumatic contracture of the elbow?
posterior oblique
What is the most common pathogen associated with necrotizing fasciitis?
Group A Streptococcus
In case total elbow arthroplasty is selected, what intervention should be avoided when attempting ORIF of geriatric distal humerus fractures?
Olecranon osteotomy
What is the best pin care method for long-term external fixation?
Once-daily showers and dry dressings
In which time frame should a bone scan be performed when attempting to diagnose an occult hip fracture?
72 hours after the initial injury was sustained.
What is the most common complication after open reduction internal fixation of distal humerus fractures?
Decreased elbow range of motion
Bilateral femur fractures have increased rates of…
hemodynamic instability, mortality, head injuries, abdominal injuries, pulmonary injuries, and other orthopaedic injuries.
What is the most common complication of an olecranon fracture treated with tension band wiring?
symptomatic implants
What is the most sensitive parameter to detect inflammation elicited by implants and infection ?
C-reactive protein (CRP).
The use of an extended medial parapatellar incision with a semiextended technique can prevent what common deformity at the site of a proximal tibia fracture?
procurvatum
After open reduction and internal fixation of long bone fractures, at what time period should C-reactive protein start to decrease?
48 hrs
When treating a stable 2-part intertrochanteric hip fracture with a sliding hip screw construct, what is the minimum number of screw holes that are needed in the side plate for successful fixation?
two
Which nerve is at risk during the placement of anterior to posterior distal interlock screws of a intramedullary humeral nail?
musculocutaneous n.
Which nerve is at risk during the placement of lateral to medial distal interlock screws of a intramedullary humeral nail?
radial n.
What factor is most likely to adversely affect long term outcome in poly-trauma patients with severe brain injury?
intraoperative hypotension
What ankle position results in the safest compartment pressures in a casted lower leg?
Neutral to 30 degrees of plantarflexion
What structure is most likely to block reduction of the DRUJ in a Galeazzi fracture?
Extensor carpi ulnaris
What is the most common fracture associated with a lateral subtalar dislocation?
cuboid fracture
Which structure usually blocks reduction in an irreducible lateral subtalar dislocation?
posterior tibial tendon
What percent of the proximal radial head articulates with the proximal ulna?
75%
