Foot and Ankle Anatomy
What is the strongest dorsiflexor of the ankle?
Tibialis Anterior
What is the most common organism in diabetic foot infections?
S. Aureus
What is the primary indication for a keller arthroplasty?
hallux rigidus in elderly, low-demand patients
What does "ghost sign" suggest on MRI?
Osteomyelitis
What does a positive Homan's sign suggest?
DVT
Which tendon courses in between the medial and lateral tubercle of the posterior process of the talus?
Flexor Hallucis Longus
What two labs are used to access possible OM?
Bonus: values?
CRP and ESR
ESR: >60
CRP: >7.9
What is the purpose of a Z-plasty?
lengthen a contracted tendon or scar
What imaging modality is best for detecting early Charcot changes?
A patient with chronic lateral ankle instability sprains his ankle again. What test assesses the integrity of the ankle?
Bonus: What ligament is being assessed
Anterior Drawer
ATFL
What bone articulates with the navicular and the cuboid?
Calcaneus
what is the first line treatment for acute gout affecting the foot?
colchicine or NSAIDS
transverse (triplanar osteotomy)
What bone scan phase is most specific for infection?
delayed phase
Wick's catheter
>30 mmHg
Delta P <30
What is the keystone bone of the medial longitudinal arch?
navicular
What is Charcot foot most commonly associated with?
Diabetic peripheral neuropathy
What deformity does a Dwyer osteotomy correct?
rearfoot varus
When looking at medial clear space, what measurement would indicate medial ankle instability? What ligament is disrupted?
>4mm
Deltoid
What is the most common post-op commplicaiton of a TMA?
equinovarus contracture
What nerve innervates the interossei muscles of the foot?
Lateral plantar nerve
What is the gold standard for diagnosing osteomyelitis?
Bone biopsy
What surgical procedure corrects flexible flatfoot by placing an implant in the sinus tarsi?
Arthroereisis
What does a Brodie's abscess indicate?
Subacute osteomyelitis
What clinical sign indicates rupture of the Achilles Tendon?
positive Thomson test