Question:
Which is the last finding to be seen in compartment syndrome?
Which is the last finding to be seen in compartment syndrome?
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Never wait for paralysis or pulselessness to diagnose compartment syndrome; by the time they appear, the limb may be unsalvageable.
Intact distal pulses do not rule out compartment syndrome.
Intact distal pulses do not rule out compartment syndrome.
Updated On: Sep 3, 2026
- Pulselessness
- Paralysis
- Paresthesia
- Pain out of proportion
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The Correct Option is B
Solution and Explanation
Concept:
The question tests the clinician's understanding of the chronological progression of clinical signs in acute compartment syndrome.
Recognizing the early versus late signs is critical for timely surgical intervention (fasciotomy) to prevent irreversible tissue necrosis.
Explanation:
• Acute compartment syndrome develops when increased pressure within a closed fascial space compromises tissue perfusion, leading to ischemia.
• The clinical diagnosis is classically guided by the "6 Ps": Pain, Paresthesia, Pallor, Paralysis, Pulselessness, and Poikilothermia.
• Pain out of proportion to the apparent injury, specifically pain exacerbated by passive stretching of the involved muscles, is the earliest, most reliable, and most sensitive indicator.
• Paresthesia occurs relatively early because sensory nerves are highly susceptible to initial ischemic changes.
• As the intracompartmental pressure continues to rise unchecked, prolonged ischemia eventually leads to irreversible muscle necrosis and profound motor nerve damage.
• Paralysis (the complete loss of motor function) is a very late and definitive sign, indicating that severe, often irreversible tissue death has already occurred.
• While pulselessness is also technically a late sign, it is frequently never seen because compartment pressures rarely exceed the systemic systolic blood pressure; thus, arterial pulses usually remain palpable even in severe compartment syndrome.
• Therefore, in standardized orthopedic assessments, paralysis is taught as the ultimate late finding before amputation becomes necessary.
Final Answer:
Paralysis is the last clinical finding to manifest, indicating end-stage, irreversible damage in compartment syndrome.
The question tests the clinician's understanding of the chronological progression of clinical signs in acute compartment syndrome.
Recognizing the early versus late signs is critical for timely surgical intervention (fasciotomy) to prevent irreversible tissue necrosis.
Explanation:
• Acute compartment syndrome develops when increased pressure within a closed fascial space compromises tissue perfusion, leading to ischemia.
• The clinical diagnosis is classically guided by the "6 Ps": Pain, Paresthesia, Pallor, Paralysis, Pulselessness, and Poikilothermia.
• Pain out of proportion to the apparent injury, specifically pain exacerbated by passive stretching of the involved muscles, is the earliest, most reliable, and most sensitive indicator.
• Paresthesia occurs relatively early because sensory nerves are highly susceptible to initial ischemic changes.
• As the intracompartmental pressure continues to rise unchecked, prolonged ischemia eventually leads to irreversible muscle necrosis and profound motor nerve damage.
• Paralysis (the complete loss of motor function) is a very late and definitive sign, indicating that severe, often irreversible tissue death has already occurred.
• While pulselessness is also technically a late sign, it is frequently never seen because compartment pressures rarely exceed the systemic systolic blood pressure; thus, arterial pulses usually remain palpable even in severe compartment syndrome.
• Therefore, in standardized orthopedic assessments, paralysis is taught as the ultimate late finding before amputation becomes necessary.
Final Answer:
Paralysis is the last clinical finding to manifest, indicating end-stage, irreversible damage in compartment syndrome.
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