8. Foot and Ankle MCQs

In a patient with adult-acquired flatfoot deformity secondary to posterior tibial tendon dysfunction, the spring ligament complex gradually fails. This critical static stabilizer of the longitudinal arch connects which two bones?

A 25-year-old athlete sustains a severe ankle syndesmosis injury. Which of the following anatomic structures provides the greatest resistance against lateral displacement of the fibula relative to the tibia?

A 30-year-old male sustains a displaced talar neck fracture. Which artery provides the predominant blood supply to the body of the talus and is at highest risk of disruption in this injury pattern?

When performing an extensile lateral approach for an intra-articular calcaneus fracture, what structure is at greatest risk of injury at the distal limb of the incision?

Which ligament provides the greatest mechanical contribution to the stability of the ankle syndesmosis?

A 28-year-old man sustains a talar neck fracture. Which artery provides the predominant blood supply to the body of the talus, placing it at high risk for avascular necrosis?

A 40-year-old man undergoes percutaneous repair of an acute Achilles tendon rupture. Postoperatively, he complains of numbness and paresthesias along the lateral aspect of his foot. The injured nerve is most vulnerable as it crosses from the lateral aspect of the leg to the lateral border of the Achilles tendon. At what approximate distance proximal to the calcaneal insertion does this crossing occur?

A marathon runner with chronic, severe medial heel pain is diagnosed with entrapment of the first branch of the lateral plantar nerve (Baxter's nerve). Which of the following muscles receives its motor innervation from this specific nerve?

The spring ligament complex is a critical static stabilizer of the longitudinal arch of the foot. Between which two osseous structures does it primarily attach?

A Morton's neuroma most commonly occurs in the third web space of the foot. This is anatomically predisposed by the union of branches from which two nerves?

The calcaneonavicular (spring) ligament complex is a critical stabilizer of the longitudinal arch. Which portion of the spring ligament is the strongest and most frequently torn in adult-acquired flatfoot deformity?

During a lateral approach to the calcaneus for an open reduction and internal fixation of a calcaneal fracture, the sural nerve is at risk. What is the typical course of the sural nerve at the level of the lateral malleolus?

The Lisfranc ligament is crucial for midfoot stability. Between which two bones does the true Lisfranc ligament run?

The plantar fascia is a primary static stabilizer of the longitudinal arch of the foot. It originates from the calcaneal tuberosity and inserts distally. Which band of the plantar fascia is the most robust and most commonly involved in plantar fasciitis?

A 45-year-old female presents with adult-acquired flatfoot deformity. The primary static stabilizer of the talonavicular joint is the spring ligament. Which of the following defines the exact anatomic attachments of this ligament?

A 45-year-old male with an MRI-confirmed L4-L5 paracentral disc herniation is evaluated in the clinic. Based on typical neuroanatomy, this lesion will most likely produce which of the following distinct clinical findings?

A patient presents with acquired adult flatfoot deformity resulting from posterior tibial tendon insufficiency. The secondary static stabilizer of the medial longitudinal arch is often attenuated. Which of the following bands of the calcaneonavicular (spring) ligament complex is the strongest and most critical for arch support?

A patient sustains a midfoot crush injury. Radiographs show widening of the space between the first and second metatarsals. The Lisfranc ligament is likely ruptured. What are the specific osseous attachments of this ligament?

A patient undergoes a tarsal tunnel release. The surgeon makes a curved incision posterior to the medial malleolus. Proceeding strictly from anterior to posterior, what is the correct anatomical order of the structures encountered beneath the flexor retinaculum?

The distal tibiofibular syndesmosis provides critical structural stability to the ankle mortise. Which of its component ligaments is biomechanically the strongest and provides the greatest resistance to lateral displacement of the fibula?