MSK quick associations Flashcards
Man in 20s with LBP that improves with exercise
Ankylosing spondylitis
Pencil in cup deformities of the DIP joints
Psoriatic arthritis
Bamboo spine on XR
Ankylosing spondylitis
Noninflammatory arthritis affecting DIPs and PIPs
OA
Inflammatory arthritis affecting the PIPs and MCPs
RA
Knee X-ray reveals calcification on menisci
pseudogout
Needle-shaped negatively birefringent crystals in synovial fluid
gout
Rhomboid-shaped, positively birefringent crystals in synovial fluid
pseudogout
> 50,000 neutrophils in synovial fluid
septic joint
24 yo man with pain and swelling in both knees and pustules on hands
N. gonorrheae septic arthritis
LBP increases with passive straight leg raise
herniated disc
LBP with acute urinary retention
cauda equina
severe back pain that radiates to groin
renal stone
LBP limited to paraspinal region
muscle strain
LBP improves with activity
ankylosing spondylitis
Fall on outstretched arm -> snuffbox tenderness complication
avascular necrosis
Anterior shoulder dislocation complication
axillary n inj
Fracture of 5th metacarpal neck complication
fight bite, tendon lac
Humerus fracture complication
radial n inj
Hip fracture complication
avascular necrosis
Femur fracture complication
fat embolization, severe blood loss
Tibial fracture complication
compartment syndrome
Pelvic fracture complication
major blood loss -> hypovolemic shock
Scapular winging nerve inj
long thoracic n.
unable to wipe bottom - nerve inj
thoracodorsal n
loss of shoulder abduction nerve inj
axillary n.
loss of elbow flexion and forearm supination - nerve inj
musculocutaneous n.
Trouble initiating shoulder abduction - nerve inj
supra scapular n.
Unable to abduct arm beyond 10 degrees - nerve inj
axillary n.
unable to raise arm above horizontal - nerve inj
long thoracic and spinal accessory Ns.
Fracture of the shaft of the humerus nerve inj
Radial n.
fracture of surgical neck of the humerus nerve inj
axillary n
supracondylar humerus fracture nerve inj
median n.
fracture of the medial epicondyle nerve inj
ulnar n.
Injury to carpal tunnel nerve inj
median n.
Back pain worse at rest and better with activity
ankylosing spondylitis
back pain 24 hours a day and at rest with weight loss
cancer
bowel and bladder dysfunction, saddle anesthesia
cauda equina
Back pain with epigastric pain related to eating
PUD, pancreatitis
Back pain with RUQ pain that worsens after eating fatty meals
cholecystitis
Back pain with elevated amylase or lipase
pancreatitis
back pain with pulsatile abdominal mass
AAA
back pain that radiates to the pelvis or groin
renal stones
CVA tenderness
pyelonephritis
Back pain in osteoporotic patient
compression fracture
back asymmetry
scoliosis - severe
back pain with abnormal gait where knees are flexed and hips remain flexed
spondylolithisis - L5-S1 MC
Back pain with systemic infection
meningitis, discitis, osteomyelitis, epidural abscess