8. Foot and Ankle MCQs

In severe rotational ankle fractures, the deltoid ligament may be disrupted. Which component of the deltoid ligament complex is the primary static restraint to lateral displacement and external rotation of the talus?

Fractures of the talar neck frequently lead to avascular necrosis of the talar body. The body of the talus receives its major blood supply from the artery of the tarsal canal, which is a direct branch of the:

A surgeon is performing a posterolateral approach to the ankle for fixation of a posterior malleolus fracture. During the superficial dissection, the sural nerve must be protected. The sural nerve runs in close proximity to which structure?

During an anterolateral approach to the distal tibia, the superficial peroneal nerve must be identified and protected. At what approximate level does this nerve typically pierce the deep fascia to become subcutaneous?

The primary bony stabilizer of the Lisfranc joint complex is the base of the second metatarsal.

Which of the following accurately describes its articulation with the cuneiforms?

The anterior inferior tibiofibular ligament (AITFL) is commonly torn in syndesmotic ankle sprains. Where does this ligament primarily insert on the tibia?

Following a proximal fibular fracture, a patient develops a deep peroneal nerve palsy. On physical examination, where would sensation most likely be decreased?

When performing a lateral approach to the fibula, the superficial peroneal nerve is at risk as it exits the deep fascia to become subcutaneous. At approximately what distance proximal to the lateral malleolus does this typically occur?

The spring ligament is a critical static stabilizer of the longitudinal arch of the foot, often implicated in adult acquired flatfoot deformity. What are its precise anatomical attachments?

During a percutaneous repair of an Achilles tendon rupture, the sural nerve is at highest risk of iatrogenic injury. At approximately what distance proximal to the calcaneal tuberosity does the sural nerve typically cross the lateral border of the Achilles tendon?

The anterior inferior tibiofibular ligament (AITFL) is a critical stabilizer of the ankle syndesmosis. It originates from the Chaput tubercle on the tibia and inserts onto which bony landmark on the fibula?

Talar neck fractures are notorious for causing avascular necrosis of the talar body. The dominant blood supply to the body of the talus is provided by the artery of the tarsal canal, which is a branch of which major artery?

A 28-year-old sustains a displaced talar neck fracture. The primary blood supply to the body of the talus, which is at highest risk of disruption in this injury, is provided by the artery of the tarsal canal. This artery is a direct branch of which of the following?

A surgeon is performing an open reduction and internal fixation of a calcaneus fracture via an extensile lateral approach. Which nerve is at greatest risk of iatrogenic injury during the full-thickness subperiosteal dissection of the posterior vertical limb?

An extensile lateral approach to the calcaneus is planned for an intra-articular fracture. The surgeon must elevate a full-thickness flap to avoid wound necrosis. Which nerve is most at risk during the initial incision and flap elevation?

A surgeon is performing an extensile lateral approach to the calcaneus for an intra-articular fracture. Retraction of the full-thickness inferior flap places which of the following structures at highest risk?

In a patient with a suspected ankle syndesmotic injury, which ligament serves as the primary restraint to anterior translation of the distal fibula relative to the tibia?

During a posterolateral approach to the distal fibula for fracture fixation, a cutaneous nerve is identified and protected. What is the standard anatomical course of this nerve at the level of the ankle?

Following a traumatic knee dislocation, a patient is noted to have a dense foot drop and inability to evert the foot. The injured nerve is most vulnerable as it courses around the fibular neck. Between which two structures does this nerve pass as it enters the anterior compartment of the leg?