8. Foot and Ankle MCQs

A diabetic patient with loss of protective sensation has a recurrent neuropathic ulcer beneath the first metatarsal head despite compliant use of custom orthotics. Physical examination reveals an inability to passively dorsiflex the ankle past neutral with the knee extended. What surgical intervention is most appropriate to reduce forefoot peak pressures?

During routine neurologic screening of a diabetic foot, which specific tuning fork is recommended by international guidelines to best assess vibratory sensation and identify early large-fiber neuropathy?

A 62-year-old diabetic patient has a foot ulcer classified as Grade 2, Stage C according to the University of Texas Wound Classification System. Which of the following best describes this wound's characteristics?

During a routine orthopedic physical examination of a newly diagnosed diabetic patient, the physician intends to screen for the earliest signs of peripheral sensory-motor neuropathy. Which deep tendon reflex is characteristically the first to diminish or disappear?

A diabetic patient with confirmed loss of protective sensation (LOPS) but no clinical foot deformity or history of prior ulceration is being counseled on footwear. According to current standards, what is the most appropriate footwear recommendation for this patient?

Among diabetic patients presenting with a newly diagnosed foot ulcer, which of the following concomitant clinical findings is considered the strongest independent predictor for eventual major lower extremity amputation?

A surgeon is planning a midfoot reconstruction for a diabetic patient with severe structural deformity from inactive Charcot arthropathy. Preoperative laboratory optimization is paramount. A Hemoglobin A1c (HbA1c) level persistently above what threshold is most strongly associated with exponentially increased rates of surgical site infection and poor wound healing?

A 62-year-old diabetic patient presents with recurrent ulceration under the first metatarsal head. Examination reveals a rigid claw toe deformity. Which pathophysiologic mechanism primarily drives this specific structural foot deformity?

Autonomic neuropathy in the diabetic foot leads to loss of sympathetic tone, which directly contributes to which of the following physiological changes?

A 54-year-old diabetic patient presents with a swollen, warm, erythematous unilateral foot. Radiographs show no acute fractures but diffuse osteopenia. To clinically differentiate acute Charcot neuroarthropathy from infection in the outpatient setting, which of the following physical examination maneuvers is most useful?

According to the University of Texas Wound Classification System for diabetic foot ulcers, a Grade 2, Stage C ulcer is best described by which of the following?

A 45-year-old male presents with a painless, grossly swollen right shoulder. Examination reveals palpable crepitus, severe instability, and diminished pain and temperature sensation in the upper extremity.

What is the most likely underlying diagnosis?

A 7-year-old boy presents with the clinical finding shown in the image below. He reports mild aching pain and limited range of motion. Given the most likely diagnosis of Dysplasia Epiphysealis Hemimelica, which anatomical structure is most commonly affected in this specific region?

Review the MRI and CT images of a 9-year-old patient presenting with a hard, asymmetric ankle mass. The lesion originates from the epiphysis. Based on the typical distribution of this disease, which of the following statements is true regarding its anatomical predilection?

Review the MRI and CT images of a 9-year-old male's ankle below. The lesion is localized to the lateral side of the talus. Which of the following best describes the characteristic radiographic feature of this condition?

Which of the following anatomical locations is LEAST likely to be affected by Dysplasia Epiphysealis Hemimelica (DEH)?