Musculoskeletal USMLE Step 2 QUESTIONS AND
CORRECT ANSWERS 2025 LATEST//ALREADY
GRDAED A+
What type of shoulder dislocation is most common? - (answer)Anterior
(posterior quite rare. Usually only assoc. with electrocution or seizure)
What nerve is most at risk in anterior shoulder dislocation? - (answer)Axillary
nerve
How will a patient usually hold their arm in an anterior dislocation of the
shoulder? - (answer)Abduction and externally rotated
(opposite of posterior, where it is usually adducted and internally rotated)
What nerve is most at risk with anterior hip dislocation? - (answer)Obturator
What is the most common type of hip dislocation? - (answer)Posterior (>90%) -
occurs via posterior force on internally rotated, flexed, adducted hip ("dashboard
injury")
What type of injury is associated with posterior hip dislocation? - (answer)Sciatic
nerve injury
Avascular necrosis of bone
,What test should be done after reduction of a hip dislocation? - (answer)CT scan
A colles' fracture most commonly involves what bone? - (answer)Distal radius
fracture; dorsally displaced, dorsally angulated fracture
(image shows complete fracture)
In whom is Colles' fractures common? - (answer)Elderly and children - esp those
who fall onto outstretched hand
The treatment for a colles' fracture is usually closed reduction, followed by a long-
arm cast. When is open reduction indicated in colles' fracture? - (answer)If the
fracture is intra-acrticular
What is the most commonly fractured carpal bone? - (answer)Scaphoid fracture
A fracture of the scaphoid may take up to two weeks to display on radiographs.
When specific sign will make you suspect scaphoid fracture? - (answer)When
there is tenderness in the anatomical snuffbox
How is a scaphoid fracture treated? - (answer)Thumb spica cast
,What is a complication of proximal 1/3rd scaphoid fractures? - (answer)Avascular
Necrosis (AVN)
What causes a Boxer's fracture? - (answer)Forward trauma of a closed fist can
fracture the 5th metacarpal neck
How is an uncomplicated Boxer's fracture treated? - (answer)Closed reduction +
Ulnar Gutter Splint
When might Percutaneous Pinning be required in Boxer's fractures? -
(answer)*Displaced fractures* (usually of 1st or 5th metacarpal or proximal
phalanges)
Bone is put into place under X ray guidance, and metal wire run through the two
bone segments to hold in place. Metal removed in 4-6 weeks
What nerve palsy is commonly associated with humeral shaft fracture? -
(answer)Radial nerve palsy - wrist drop and loss of thumb extension
A minor humoral shaft fracture is treated using a hanging arm cast (whole arm up
to deltoid). How is a severe humoral fracture treated? - (answer)Coaptation splint
What is Monteggia's fracture? - (answer)Diaphyseal fracture of the proximal ulna
+ subluxation of radial head
, How is a Monteggia's fracture treated? - (answer)Open reduction and internal
fixation (ORIF) of the ulna (so, big metal pins)
Closed reduction of the radial head
A direct blow to the radius may cause what type of fracture? - (answer)Galeazzi's -
Diaphyseal radial fracture with dislocation of the radioulnar joint. Requires ORIF
How might someone who has experienced a hip fracture have their leg
positioned? - (answer)Shortened and externally rotated
What are your specific concerns with displaced femoral neck fractures? -
(answer)Avascular Necrosis
Nonunion
How are hip fractures treated? - (answer)*ORIF*
May require hip hemiarthroplasty if elderly
*Anticoagulate* to decrease likelihood of DVT (hip fracture associated with DVT
risk)
What complication of a femoral fracture will present with fever, change in mental
status, dyspnea, hypoxia, petechiae and thrombocytopenia? - (answer)Fat emboli
What should you be concerned about in a tibial fracture? - (answer)Compartment
syndrome
CORRECT ANSWERS 2025 LATEST//ALREADY
GRDAED A+
What type of shoulder dislocation is most common? - (answer)Anterior
(posterior quite rare. Usually only assoc. with electrocution or seizure)
What nerve is most at risk in anterior shoulder dislocation? - (answer)Axillary
nerve
How will a patient usually hold their arm in an anterior dislocation of the
shoulder? - (answer)Abduction and externally rotated
(opposite of posterior, where it is usually adducted and internally rotated)
What nerve is most at risk with anterior hip dislocation? - (answer)Obturator
What is the most common type of hip dislocation? - (answer)Posterior (>90%) -
occurs via posterior force on internally rotated, flexed, adducted hip ("dashboard
injury")
What type of injury is associated with posterior hip dislocation? - (answer)Sciatic
nerve injury
Avascular necrosis of bone
,What test should be done after reduction of a hip dislocation? - (answer)CT scan
A colles' fracture most commonly involves what bone? - (answer)Distal radius
fracture; dorsally displaced, dorsally angulated fracture
(image shows complete fracture)
In whom is Colles' fractures common? - (answer)Elderly and children - esp those
who fall onto outstretched hand
The treatment for a colles' fracture is usually closed reduction, followed by a long-
arm cast. When is open reduction indicated in colles' fracture? - (answer)If the
fracture is intra-acrticular
What is the most commonly fractured carpal bone? - (answer)Scaphoid fracture
A fracture of the scaphoid may take up to two weeks to display on radiographs.
When specific sign will make you suspect scaphoid fracture? - (answer)When
there is tenderness in the anatomical snuffbox
How is a scaphoid fracture treated? - (answer)Thumb spica cast
,What is a complication of proximal 1/3rd scaphoid fractures? - (answer)Avascular
Necrosis (AVN)
What causes a Boxer's fracture? - (answer)Forward trauma of a closed fist can
fracture the 5th metacarpal neck
How is an uncomplicated Boxer's fracture treated? - (answer)Closed reduction +
Ulnar Gutter Splint
When might Percutaneous Pinning be required in Boxer's fractures? -
(answer)*Displaced fractures* (usually of 1st or 5th metacarpal or proximal
phalanges)
Bone is put into place under X ray guidance, and metal wire run through the two
bone segments to hold in place. Metal removed in 4-6 weeks
What nerve palsy is commonly associated with humeral shaft fracture? -
(answer)Radial nerve palsy - wrist drop and loss of thumb extension
A minor humoral shaft fracture is treated using a hanging arm cast (whole arm up
to deltoid). How is a severe humoral fracture treated? - (answer)Coaptation splint
What is Monteggia's fracture? - (answer)Diaphyseal fracture of the proximal ulna
+ subluxation of radial head
, How is a Monteggia's fracture treated? - (answer)Open reduction and internal
fixation (ORIF) of the ulna (so, big metal pins)
Closed reduction of the radial head
A direct blow to the radius may cause what type of fracture? - (answer)Galeazzi's -
Diaphyseal radial fracture with dislocation of the radioulnar joint. Requires ORIF
How might someone who has experienced a hip fracture have their leg
positioned? - (answer)Shortened and externally rotated
What are your specific concerns with displaced femoral neck fractures? -
(answer)Avascular Necrosis
Nonunion
How are hip fractures treated? - (answer)*ORIF*
May require hip hemiarthroplasty if elderly
*Anticoagulate* to decrease likelihood of DVT (hip fracture associated with DVT
risk)
What complication of a femoral fracture will present with fever, change in mental
status, dyspnea, hypoxia, petechiae and thrombocytopenia? - (answer)Fat emboli
What should you be concerned about in a tibial fracture? - (answer)Compartment
syndrome
