8. Foot and Ankle MCQs

A 55-year-old patient with poorly controlled diabetes mellitus presents with a warm, swollen, and erythematous right foot without an open ulcer. Radiographs demonstrate significant midfoot joint effusion, bone fragmentation, subluxation, and periarticular debris. According to the Eichenholtz classification of Charcot arthropathy, what stage does this represent, and what is the primary treatment?

A 24-year-old gymnast sustains a hyper-plantarflexion midfoot injury. Weight-bearing radiographs reveal widening of the interval between the first and second metatarsal bases, alongside a small bony 'Fleck sign'. The critical Lisfranc ligament, which is disrupted in this injury, connects which two specific osseous structures?

A 22-year-old soccer player sustains a midfoot injury. An AP weight-bearing radiograph demonstrates a widening of the space between the first and second metatarsal bases and a small avulsion fracture ('Fleck sign'). The avulsed ligament normally connects which two structures?

A 55-year-old patient with poorly controlled type 2 diabetes presents with a unilaterally swollen, red, and warm left foot. He denies trauma or skin breaks. Radiographs reveal fragmentation of the tarsometatarsal joints, periarticular debris, and joint subluxation. Inflammatory markers are mildly elevated, but MRI shows no marrow enhancement characteristic of osteomyelitis. According to the Eichenholtz classification, what is the stage and most appropriate initial management?

A 55-year-old male with poorly controlled diabetes mellitus presents with a swollen, erythematous, and warm left foot without skin ulceration. Radiographs reveal fragmentation of the midfoot with subluxation of the tarsometatarsal joints, bony debris, and no signs of consolidation. According to the Eichenholtz classification, what stage is this, and what is the best initial orthopedic management?

A 22-year-old football player sustains a hyperplantarflexion injury to his midfoot. AP radiograph demonstrates a "fleck sign". This bony avulsion is most classically associated with the attachment of the Lisfranc ligament to which of the following structures?

A 58-year-old patient with poorly controlled diabetes mellitus presents with a swollen, warm, and erythematous right foot. Radiographs demonstrate periarticular osteopenia, fragmentation of the navicular, and subluxation of the tarsometatarsal joints. According to the Eichenholtz classification of Charcot arthropathy, what stage does this represent and what is the hallmark of the subsequent stage?

A 30-year-old male sustains a purely ligamentous Lisfranc injury involving the first, second, and third tarsometatarsal joints. Based on prospective randomized trials, what is the major clinical advantage of primary arthrodesis compared to Open Reduction and Internal Fixation (ORIF) for this specific injury pattern?

A 52-year-old diabetic patient with peripheral neuropathy presents with a warm, swollen, erythematous foot. Radiographs demonstrate periarticular debris, fragmentation of the navicular and cuneiforms, and subluxation of the midfoot. According to the Eichenholtz classification, what stage of Charcot arthropathy is this patient currently in?

A 30-year-old construction worker sustains a midfoot injury. Imaging reveals widening between the first and second metatarsals. The Lisfranc ligament, critical for midfoot stability, originates and inserts onto which of the following osseous structures?

A 40-year-old male sustains an acute rupture of the Achilles tendon. The rupture occurs in the classic 'watershed' zone, which is relatively hypovascular and prone to degeneration. Where is this watershed zone typically located?

The primary blood supply to the body of the talus is derived from which of the following vessels?

A 58-year-old male presents with painful, restricted dorsiflexion of his first metatarsophalangeal (MTP) joint. Radiographs show large dorsal osteophytes and complete joint space obliteration consistent with Grade 3 hallux rigidus. He has failed shoe modifications and NSAIDs. Which surgical procedure is considered the gold standard for durable pain relief in this patient?

The Lisfranc ligament is a critical stabilizing structure of the midfoot. What are the precise anatomic attachments of the primary Lisfranc ligament?

According to modern Level I evidence regarding the management of acute Achilles tendon ruptures, which of the following statements is true when an accelerated functional rehabilitation protocol is employed?

A distal chevron osteotomy is generally considered the most appropriate surgical intervention for a patient with symptomatic hallux valgus possessing which of the following radiographic profiles?

During the evaluation of a suspected Lisfranc injury, a 'fleck sign' is noted on the AP radiograph of the foot. This radiographic sign represents an avulsion of the Lisfranc ligament from which of the following osseous structures?

Adult acquired flatfoot deformity is often initiated by posterior tibial tendon dysfunction, leading to attenuation of the spring ligament complex. Which component of the spring ligament is the thickest, most clinically significant, and provides the primary static support to the talar head?

A 35-year-old recreational athlete sustains an acute Achilles tendon rupture. The injury most commonly occurs in a hypovascular 'watershed' region. Where is this region anatomically located relative to the calcaneal insertion?