8. Foot and Ankle MCQs

A 10-year-old patient is undergoing a 5 cm tibial lengthening using a circular external fixator. At the 4-week follow-up, the patient develops lateral ankle pain. Radiographs reveal proximal migration of the lateral malleolus and widening of the distal tibiofibular clear space. What critical technical step was likely omitted during the initial frame application?

The myriad of orthopedic manifestations seen in Down syndrome, including patellofemoral instability, pes planus, and hip subluxation, are primarily attributed to which underlying pathophysiology?

A 55-year-old male with a 15-year history of poorly controlled type 2 diabetes mellitus presents for a routine orthopedic foot evaluation. To best assess his risk for developing neuropathic ulcerations, which of the following screening tools is considered the most reliable?

The 5.07 Semmes-Weinstein monofilament is considered the gold standard for evaluating protective sensation in the diabetic foot. The '5.07' designation corresponds to an applied buckling force of approximately:

A 60-year-old diabetic patient is found to have an inability to perceive the 5.07 Semmes-Weinstein monofilament on the plantar aspect of the foot. According to current practice patterns, this specific sensory deficit places the patient at the highest direct risk for developing which of the following conditions?

A 62-year-old female with long-standing diabetes presents with a unilateral, erythematous, swollen, and warm foot. Radiographs reveal midfoot joint destruction and periarticular debris. A failure to perceive which of the following during prior routine screenings would have best predicted her risk for this condition?

A 50-year-old diabetic patient is being evaluated in the clinic. The physician applies a 5.07 Semmes-Weinstein monofilament to the plantar aspect of the first metatarsal head, and the patient successfully detects it. This finding indicates that the patient currently has a low risk for:

During a diabetic foot exam, a resident uses a tuning fork to assess vibratory sensation and a pin to assess sharp two-point discrimination. The attending physician corrects the resident, stating that a different modality is the most useful screening method for protective sensation. Which modality is the attending referring to?

The development of Charcot foot in diabetic patients is strongly associated with the loss of protective sensation. Which of the following is the most reliable clinical test to screen for this specific sensory loss?

According to standard orthopedic guidelines and studies regarding current practice patterns in the treatment of Charcot foot, the initial screening for patients at risk should primarily focus on the evaluation of:

Which of the following Semmes-Weinstein monofilaments is considered the standard for evaluating the loss of protective sensation in the diabetic foot?

A patient with long-standing diabetes mellitus is found to have an absence of protective foot sensation during a routine clinic visit. According to current practice patterns, this patient is at the greatest increased risk for developing which of the following conditions?

When screening a patient with diabetes mellitus for the risk of neuropathic ulcerations, which of the following modalities is considered the most reliable tool?

The 5.07 Semmes-Weinstein monofilament is the most reliable screening tool for protective sensation in the diabetic foot. How much bending force does this specific monofilament apply when used correctly?

A 58-year-old male with poorly controlled diabetes mellitus fails to perceive the 5.07 Semmes-Weinstein monofilament on the plantar aspect of his foot. The examiner should counsel the patient that he is at increased risk for neuropathic ulcerations and which of the following additional complications?

According to literature regarding current practice patterns in the treatment of Charcot foot, the initial pathogenesis leading to this condition in diabetic patients is most strongly predicted by the loss of:

A 62-year-old female with diabetes mellitus type 2 presents for a foot examination. She is able to feel the 5.07 Semmes-Weinstein monofilament at all tested sites on her bilateral feet. What does this finding most reliably indicate?

While evaluating a diabetic patient, a medical student suggests using sharp two-point discrimination to assess the risk of neuropathic ulceration. The attending physician corrects the student, stating that another method is the most reliable screening tool for protective sensation. Which of the following is the preferred method?

A 55-year-old patient with a 15-year history of poorly controlled diabetes mellitus presents for a routine foot evaluation. Which of the following tests is considered the most reliable screening tool to determine if the patient has lost protective sensation?

The 5.07 Semmes-Weinstein monofilament is widely utilized in orthopedic and podiatric clinics to screen for the loss of protective sensation in diabetic patients. When applied correctly perpendicular to the skin, this specific monofilament is designed to buckle at approximately what amount of linear pressure?