Why You Should Wait to Poke That Swollen Ankle
- The Review Course in Family Medicine
- 1 day ago
- 2 min read
At some point over the past few months of preparing for the CCFP exam, things may have felt overwhelming.
But you kept going.
That matters more than anything.
No matter how you’re feeling right now
(prepared, nervous, somewhere in between)
we're rooting for you.
Best of luck on the exam, you've got this!
-Simon and Paul
Don't be a "heel"—wait for the swelling to settle.
Your next patient may limp in after a weekend of "giving it their all" at the local pickleball court. A 2025 American Family Physician article confirms that although ankle sprains are common, our assessment timing is often wrong.
Incidence: 7 per 1,000 person-years.
Anterior Drawer Test Sensitivity: 96% after four days vs 71% acutely.
Recurrence: Inversion injuries reduced by 70% with bracing.
Quiz yourself! A patient presents 2 hours after an inversion injury with significant lateral swelling. What is the diagnostic accuracy of your Anterior Drawer test right now compared to day five? Low!
The big one: In the first 48 hours, pain and swelling mask the degree of laxity. Waiting 4-7 days significantly improves your diagnostic sensitivity and specificity. Protecting the joint during this window is much more helpful than a premature diagnosis.
Diagnosis:
Use Ottawa Ankle Rules to rule out fractures.
Palpate the posterior edge of the malleoli.
Assess for midfoot pain at the base of the fifth metatarsal and navicular.
Test weight-bearing for at least four steps.
Treatment:
Protection: Use lace-up or semirigid braces early.
Early Movement: Start range of motion exercises within 3 days.
Pain Control: Acetaminophen and Nonsteroidal Anti-inflammatory Drugs are equally effective.
Avoid: Rigid immobilization like walking boots for more than 10 days.
Functional recovery is the goal. This means restoring range of motion, especially dorsiflexion, evertor, and invertor strength. Use a semirigid brace during sports for up to 12 months to prevent recurrence.
If recovery stalls, consider the mimickers. Syndesmotic sprains or "high ankle sprains" often present with a positive Squeeze Test. Talar dome fractures and peroneal tendon instability can also be masked by a "simple" sprain diagnosis. Order Magnetic Resonance Imaging if symptoms persist despite proper functional rehabilitation.
EXAM TIP: On a Short Answer Management Problem, don't list "X-ray" for every instance of ankle pain. If the patient is young, can walk four steps, and has no bony tenderness, the Ottawa Ankle Rules are negative. Listing a needless X-ray could cost marks. Also, remember that "Rest" is no longer the standard; "Functional Rehabilitation" is the focus.
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