Quick answer
How should I present a suspected compartment syndrome case on rounds?
Lead with pain out of proportion to the injury and unresponsive to opioids, since that is the earliest and most reliable warning sign. State that the cast has already been removed, give the exam findings and the measured compartment pressure, then name the diagnosis and the need for emergent fasciotomy without waiting for a pulse to disappear.
Before you speak
Define the moment and the information you actually have
An emergency presentation six hours after cast placement, immediately after compartment pressure is measured.
The on-call orthopedic surgeon deciding on emergent fasciotomy.
History, vital signs, a focused limb exam, and a needle-manometer compartment pressure reading. A formal vascular study is not supplied.
About 75 seconds
Fictional training case: The presentation is locked to the simulated patient JSON. It names important unknowns instead of inventing an examination, vital signs, allergies, or tests.
Complete spoken example
First, read it once without stopping
The paragraph breaks show the clinical shape. In a real presentation, pause briefly between ideas rather than announcing the headings.
Mr. Adams is a 28-year-old man six hours after casting for a tibial shaft fracture who now has severe leg pain out of proportion to the injury and unrelieved by opioids.
He reports tense swelling under the cast, tingling in his toes, and severe pain when his toes are passively stretched. He is worried about losing sensation or circulation and thinks the cast is simply too tight.
He sustained a closed right midshaft tibial fracture in a skiing accident and was casted six hours ago; his oxycodone has not controlled the pain. He works as a ski instructor.
His vitals show a heart rate of 110 and blood pressure 138 over 85. The anterior compartment is tense and wooden on palpation, with diminished sensation and a still-present dorsalis pedis pulse. Compartment pressure measured 58 with a delta pressure of 27, under the 30 mmHg cutoff that indicates compartment syndrome.
My diagnosis is acute compartment syndrome of the right lower leg, based on pain out of proportion, pain on passive stretch, and a delta pressure of 27, and this remains the diagnosis even though his pulse is still present.
The cast and all constrictive dressings have already been fully removed, and the limb is being kept at heart level rather than elevated, to preserve perfusion pressure. I am obtaining emergent orthopedic consultation for fasciotomy without delay.
Build the presentation
Give every sentence one job
A presentation is a compressed clinical argument, not a chart read aloud. These six moves keep the facts connected to your reasoning.
Opening one-liner
Name pain out of proportion immediately
“Mr. Adams is a 28-year-old man six hours after casting for a tibial shaft fracture who now has severe leg pain out of proportion to the injury and unrelieved by opioids.”
Why it belongs: Pain out of proportion to the injury and unresponsive to appropriate analgesia is the earliest and most sensitive warning sign of compartment syndrome, and should be the first thing the listener hears.
He has a lot of leg pain after his cast was put on.
He has pain out of proportion to the injury that is unrelieved by opioids, six hours after casting.
Why: Naming the pain as disproportionate and opioid-unresponsive is the specific red flag, not just 'a lot of pain.'
History of present illness
Give the specific sensory and stretch findings
“He reports tense swelling under the cast, tingling in his toes, and severe pain when his toes are passively stretched. He is worried about losing sensation or circulation and thinks the cast is simply too tight.”
Why it belongs: Pain on passive stretch and paresthesia are specific findings that distinguish compartment syndrome from ordinary post-fracture pain or a cast that is simply too tight.
He thinks his cast is too tight and his foot feels tingly.
He has severe pain on passive toe stretch and tingling in his toes, which is more specific than a tight-cast sensation alone.
Why: Naming the specific exam finding of pain on passive stretch is what should raise concern beyond the patient's own tight-cast theory.
Relevant background
Confirm the mechanism and timeline
“He sustained a closed right midshaft tibial fracture in a skiing accident and was casted six hours ago; his oxycodone has not controlled the pain. He works as a ski instructor.”
Why it belongs: The timeline from casting to symptom onset and the failure of an appropriate opioid dose to control pain both support compartment syndrome rather than routine post-fracture discomfort.
He broke his leg and got a cast.
He sustained a closed midshaft tibial fracture six hours ago, and his prescribed oxycodone has not controlled the pain.
Why: Stating that an appropriate analgesic dose failed is more clinically meaningful than simply noting the fracture.
Objective data
State the exam findings and measured pressure
“His vitals show a heart rate of 110 and blood pressure 138 over 85. The anterior compartment is tense and wooden on palpation, with diminished sensation and a still-present dorsalis pedis pulse. Compartment pressure measured 58 with a delta pressure of 27, under the 30 mmHg cutoff that indicates compartment syndrome.”
Why it belongs: The tachycardia reflects pain and physiologic stress, the tense wooden compartment and diminished sensation are exam findings supporting the diagnosis, and the elevated pressure with a low delta confirms it objectively; a present pulse does not rule it out, since pulse loss is a very late sign.
His compartment pressure was high.
Compartment pressure measured 58 with a delta pressure of 27, under the 30 mmHg cutoff that indicates compartment syndrome.
Why: Giving both the absolute pressure and the delta pressure is how this diagnosis is actually confirmed.
Assessment
Commit to the diagnosis without waiting for a lost pulse
“My diagnosis is acute compartment syndrome of the right lower leg, based on pain out of proportion, pain on passive stretch, and a delta pressure of 27, and this remains the diagnosis even though his pulse is still present.”
Why it belongs: Explicitly stating that a present pulse does not exclude the diagnosis corrects one of the most dangerous and common misconceptions about this condition.
His pulse is fine, so it's probably not too serious.
His pulse is still present, but that does not rule out compartment syndrome, since pulse loss is a late finding.
Why: This directly prevents a dangerous false reassurance based on an intact pulse.
Plan
State that the cast is already off and surgery is emergent
“The cast and all constrictive dressings have already been fully removed, and the limb is being kept at heart level rather than elevated, to preserve perfusion pressure. I am obtaining emergent orthopedic consultation for fasciotomy without delay.”
Why it belongs: Stating that the limb is kept at heart level, not elevated, corrects a common and dangerous instinct, and confirms that the cast removal and surgical consultation have already happened rather than being merely planned.
We took the cast off and I'll elevate the leg and call ortho.
The cast is fully removed, the limb is kept at heart level rather than elevated, and I am obtaining emergent fasciotomy consultation now.
Why: Correcting the elevation instinct explicitly prevents a common error that can worsen perfusion.
Do not fill the blanks
Say what has not yet been established
Real presentations often happen before the chart is complete. A brief, explicit limitation is safer and more credible than a polished invention.
Formal vascular study
Say: “A formal vascular study such as an ankle-brachial index is not part of this simulation, and clinical findings and compartment pressure are guiding the urgent decision instead.”
Waiting for a vascular study would delay a diagnosis that is already clinically and objectively confirmed.
Renal function and myoglobin
Say: “Creatine kinase and myoglobin are not documented in this simulation and would help assess for muscle injury and its systemic effects.”
Significant muscle ischemia can affect kidney function and should be monitored once surgery is arranged.
Clinical compression
What leads, what stays, and what can wait?
| Source detail | Decision | Reason |
|---|---|---|
| Pain out of proportion to the injury, unrelieved by opioids | Lead | This is the earliest and most sensitive warning sign and should open the presentation. |
| Pain on passive toe stretch and paresthesia | Lead | These specific exam findings are more diagnostic than swelling or tightness alone. |
| Ski instructor occupation | Omit | Occupation does not change the emergency surgical decision. |
| Dorsalis pedis pulse still present | Include | It must be named explicitly and correctly interpreted as not ruling out the diagnosis, since pulse loss is a late sign. |
| Compartment pressure of 58 with a delta pressure of 27 | Lead | This is the objective confirmation that supports emergent fasciotomy. |
After the presentation
Likely attending questions
Answer the question first, then give the evidence. If the source case does not contain the answer, say what you would verify.
His pulse is still present—are you sure this is compartment syndrome?
Yes. A palpable distal pulse is common early in compartment syndrome because arterial pressure is usually much higher than compartment pressure; pulse loss is a very late and unreliable sign, so waiting for it to disappear would delay a necessary fasciotomy.
Why keep the limb at heart level instead of elevating it?
Elevating the limb above heart level further reduces the arterial-to-compartment pressure gradient and can worsen tissue perfusion, so the limb is kept at heart level instead.
What is the delta pressure and why does it matter?
Delta pressure is the diastolic blood pressure minus the measured compartment pressure; a delta pressure below about 30 millimeters of mercury is concerning for compartment syndrome because it suggests tissue perfusion is critically compromised.
Self-check
A 30-second check before you present
- State pain out of proportion and opioid unresponsiveness in the opening sentence.
- Name pain on passive stretch as a specific exam finding.
- Confirm the cast has already been fully removed.
- State the absolute and delta compartment pressures together.
- State explicitly that a present pulse does not rule out the diagnosis.
- State that the limb is kept at heart level, not elevated.
- State that orthopedic consultation for fasciotomy is emergent, not routine.
- Avoid waiting for a formal vascular study before escalating.
Common presentation problems
Repair the habits that make a case hard to follow
Reassuring the team because a pulse is present
Repair: State explicitly that pulse loss is a late sign and does not need to be present to diagnose compartment syndrome.
Elevating the limb to reduce swelling
Repair: State that the limb is kept at heart level to preserve the perfusion pressure gradient.
Reporting only 'high compartment pressure' without the delta
Repair: State both the absolute pressure and the delta pressure relative to diastolic blood pressure.
Waiting for imaging or vascular studies before consulting surgery
Repair: State that consultation for emergent fasciotomy is happening now, based on clinical findings and pressure alone.
Frequently asked questions
Oral case presentation questions
Do I need to name all 'six Ps' in the presentation?
Naming the two most sensitive ones—pain out of proportion and pain on passive stretch—is more useful than reciting all six, since the later ones like pulselessness and paralysis are late and unreliable for early diagnosis.
Should I mention creatine kinase even though it's not measured here?
Yes, briefly, as an item you plan to check once the surgical emergency is addressed, since it helps assess for muscle injury and its systemic effects.
How long should this presentation be?
This worked example targets about 75 seconds. A surgical emergency alert can be even shorter, focused on the pain findings and pressure reading.
Practice out loud
Turn the patient encounter into your own presentation
Bedside English lets you interview an AI patient, then practice presenting the collected case to an AI attending and respond to follow-up questions.
Editorial record
Sources, provenance, and review boundary
The patient facts come from simulated case ortho_001. Clinical framing and presentation design were checked against the sources below. This page teaches clinical communication and reasoning; it is not medical advice or a local protocol.
- AAOS Clinical Practice Guideline: Management of Acute Compartment SyndromeAmerican Academy of Orthopaedic Surgeons · accessed 2026-09-03
- Feedback on Oral Presentations during RoundsStanford Medicine · accessed 2026-09-03
- Clinical Teaching Tools: OMP and SNAPPSUCSF Medical Education · accessed 2026-09-03
Published: · Last source, safety, and language review: