8. Foot and Ankle MCQs

During a plantar approach to the midfoot, a surgeon identifies the "Master Knot of Henry." Which of the following structures cross at this precise anatomical landmark?

During an extensile lateral approach to the calcaneus, the sural nerve is at risk. From which two nerves does the sural nerve typically derive its medial and lateral contributing branches?

The syndesmotic ligament complex of the ankle provides crucial stability to the distal tibiofibular joint. Which of the following ligaments is NOT part of this complex?

The deltoid ligament complex of the medial ankle has superficial and deep components. The superficial deltoid ligament primarily resists which motion of the talus?

During the open reduction of a tarsometatarsal fracture-dislocation, the surgeon plans to reconstruct the Lisfranc ligament to restore midfoot stability. What are the true anatomical attachments of this ligament?

A 30-year-old runner suffers an inversion ankle sprain while her foot was locked in maximum dorsiflexion. Which of the following lateral ankle ligaments is the primary restraint to inversion in this specific foot position, and thus most likely to be injured?

A patient undergoes surgical release of the tarsal tunnel for compressive neuropathy. From anterior to posterior, what is the correct anatomical order of structures passing behind the medial malleolus?

In a severe high ankle sprain requiring surgical fixation, the surgeon aims to restore syndesmotic stability. Which ligament is anatomically considered the strongest and most substantial stabilizer of the distal tibiofibular syndesmosis?

A 55-year-old female presents with a progressive flatfoot deformity. MRI demonstrates severe tendinosis of the posterior tibial tendon. What primary static soft-tissue stabilizer of the medial longitudinal arch is most likely anatomically attenuated secondary to this tendon's failure?

During a plantar approach to the midfoot for excision of a severe plantar fibroma, the surgeon must identify the "Master Knot of Henry" to protect the flexor tendons. Which of the following describes the correct anatomical relationship at this location?

The distal tibiofibular syndesmosis is primarily stabilized by three main ligaments. Which of the following ligaments provides the greatest mechanical resistance to diastasis of the syndesmosis?

A 28-year-old male sustains a severe rotational ankle injury resulting in a syndesmotic rupture. Which of the following ligaments provides the greatest resistance to diastasis and is considered the strongest component of the distal tibiofibular syndesmosis?

During surgical excision of a soft tissue sarcoma involving the subsartorial (adductor) canal in the thigh, a sensory nerve running alongside the superficial femoral artery is at risk. Injury to this nerve will result in sensory loss over which area?

A patient is evaluated for tarsal tunnel syndrome. The surgeon plans a release behind the medial malleolus. From anterior to posterior, what is the correct anatomic order of structures passing posterior to the medial malleolus?

A patient presents with progressive adult-acquired flatfoot deformity. MRI demonstrates rupture of the primary static stabilizer of the medial longitudinal arch. This structure originates from the sustentaculum tali and inserts onto which of the following?

An ankle fracture involves disruption of the distal tibiofibular syndesmosis. The strongest ligamentous stabilizer of the syndesmotic complex is the:

A 52-year-old man presents with chronic foot pain and nodular swellings around his toes. Radiographs of the foot show periarticular erosions with sclerotic margins and overhanging edges (so-called 'rat bite' erosions).

What is the composition of the crystals associated with this radiographic appearance?

A 12-year-old boy is undergoing a 4-cm tibial lengthening using a circular frame. Two months into distraction, the physician notes increasing difficulty with ankle dorsiflexion. What is the primary cause of this complication?

During a 5 cm proximal tibial lengthening using a circular fixator, the patient complains of dorsal foot numbness and new-onset weakness in the extensor hallucis longus. What is the most appropriate initial management step?

When evaluating a long-leg standing radiograph for a suspected lower limb deformity, the mechanical axis deviation (MAD) is measured. In a normal lower extremity, where does the mechanical axis line pass relative to the knee joint center?