Soft-tissue injury / sprain
A streamlined, differential-led presentation for rapid clinical review.
Twenty-second review
- Sprains and soft-tissue injuries damage ligaments, muscle, tendon, or fascia, producing pain, swelling, bruising, and impaired function without excluding fracture.
- Neurovascular deficit, rapidly expanding swelling, open wound, deformity, severe pain out of proportion, or inability to use the limb is high risk.
- Keep dvt, cellulitis, or referred pain in the differential; overlapping or concurrent illness remains possible.
- For soft-tissue injury / sprain, trends and combinations of findings are more informative than one isolated vital sign.
Compare the clinical patterns
The repeated material is grouped inside each possibility. Open only the condition you need.
Occult fractureTime-sensitive high-risk possibility
HPI
Clarify mechanism; location and pain; swelling or deformity.
Signs & symptoms
Bony tenderness, functional loss, weakness, tense swelling, or escalating pain.
Focused exam
Expose only as needed, inspect and palpate systematically, and document distal circulation, sensation, and movement; Reassess pain, swelling, perfusion, and neurologic status after movement or intervention.
Brief pathophysiology
Occult fracture may cause soft-tissue injury / sprain through a time-sensitive process capable of rapid physiological deterioration.
What the trend may show
Isolated musculoskeletal injury often leaves central vital signs near baseline. Persistent abnormality should prompt reassessment for hemorrhage, thoracic injury, infection, or a medical cause.
Heart rate (bpm)
May rise with painTachycardia can reflect pain or distress; trend after treatment.
Blood pressure (mmHg)
May rise with painHypotension is not expected in an isolated minor injury.
Respiratory rate (breaths/min)
May rise with painPersistent tachypnea suggests more than a minor isolated injury.
Oxygen saturation (SpO₂)
Usually preservedDesaturation suggests thoracic injury or concurrent disease.
Front-load in the triage report
- Occult fracture: Bony tenderness, functional loss, weakness, tense swelling, or escalating pain.
- Mechanism?
- Location and pain?
Tendon ruptureTime-sensitive high-risk possibility
HPI
Clarify location and pain; swelling or deformity; distal csm.
Signs & symptoms
Bony tenderness, functional loss, weakness, tense swelling, or escalating pain.
Focused exam
Reassess pain, swelling, perfusion, and neurologic status after movement or intervention; Inspect, palpate, assess active motion only when safe, test joint stability cautiously, and document distal CSM and joint above and below.
Brief pathophysiology
Tendon rupture may cause soft-tissue injury / sprain through a time-sensitive process capable of rapid physiological deterioration.
What the trend may show
Isolated musculoskeletal injury often leaves central vital signs near baseline. Persistent abnormality should prompt reassessment for hemorrhage, thoracic injury, infection, or a medical cause.
Heart rate (bpm)
May rise with painTachycardia can reflect pain or distress; trend after treatment.
Blood pressure (mmHg)
May rise with painHypotension is not expected in an isolated minor injury.
Respiratory rate (breaths/min)
May rise with painPersistent tachypnea suggests more than a minor isolated injury.
Oxygen saturation (SpO₂)
Usually preservedDesaturation suggests thoracic injury or concurrent disease.
Front-load in the triage report
- Tendon rupture: Bony tenderness, functional loss, weakness, tense swelling, or escalating pain.
- Location and pain?
- Swelling or deformity?
Compartment syndromeTime-sensitive high-risk possibility
HPI
Clarify swelling or deformity; distal csm; range of motion or weight-bearing.
Signs & symptoms
Bony tenderness, functional loss, weakness, tense swelling, or escalating pain.
Focused exam
Reassess pain, swelling, perfusion, and neurologic status after movement or intervention; Inspect, palpate, assess active motion only when safe, test joint stability cautiously, and document distal CSM and joint above and below.
Brief pathophysiology
Compartment syndrome may cause soft-tissue injury / sprain through a time-sensitive process capable of rapid physiological deterioration.
What the trend may show
Isolated musculoskeletal injury often leaves central vital signs near baseline. Persistent abnormality should prompt reassessment for hemorrhage, thoracic injury, infection, or a medical cause.
Heart rate (bpm)
May rise with painTachycardia can reflect pain or distress; trend after treatment.
Blood pressure (mmHg)
May rise with painHypotension is not expected in an isolated minor injury.
Respiratory rate (breaths/min)
May rise with painPersistent tachypnea suggests more than a minor isolated injury.
Oxygen saturation (SpO₂)
Usually preservedDesaturation suggests thoracic injury or concurrent disease.
Front-load in the triage report
- Compartment syndrome: Bony tenderness, functional loss, weakness, tense swelling, or escalating pain.
- Swelling or deformity?
- Distal CSM?
SprainCommon presentation pattern
HPI
Clarify mechanism; location and pain; swelling or deformity.
Signs & symptoms
Localized pain and swelling after a matching mechanism are common.
Focused exam
Expose only as needed, inspect and palpate systematically, and document distal circulation, sensation, and movement; Reassess pain, swelling, perfusion, and neurologic status after movement or intervention.
Brief pathophysiology
Sprain may explain the presenting symptoms through a common clinical mechanism, while serial assessment checks for complications or an alternate cause.
What the trend may show
Isolated musculoskeletal injury often leaves central vital signs near baseline. Persistent abnormality should prompt reassessment for hemorrhage, thoracic injury, infection, or a medical cause.
Heart rate (bpm)
May rise with painTachycardia can reflect pain or distress; trend after treatment.
Blood pressure (mmHg)
May rise with painHypotension is not expected in an isolated minor injury.
Respiratory rate (breaths/min)
May rise with painPersistent tachypnea suggests more than a minor isolated injury.
Oxygen saturation (SpO₂)
Usually preservedDesaturation suggests thoracic injury or concurrent disease.
Front-load in the triage report
- Localized pain and swelling after a matching mechanism are common.
- Mechanism?
- Location and pain?
StrainCommon presentation pattern
HPI
Clarify location and pain; swelling or deformity; distal csm.
Signs & symptoms
Localized pain and swelling after a matching mechanism are common.
Focused exam
Reassess pain, swelling, perfusion, and neurologic status after movement or intervention; Inspect, palpate, assess active motion only when safe, test joint stability cautiously, and document distal CSM and joint above and below.
Brief pathophysiology
Strain may explain the presenting symptoms through a common clinical mechanism, while serial assessment checks for complications or an alternate cause.
What the trend may show
Isolated musculoskeletal injury often leaves central vital signs near baseline. Persistent abnormality should prompt reassessment for hemorrhage, thoracic injury, infection, or a medical cause.
Heart rate (bpm)
May rise with painTachycardia can reflect pain or distress; trend after treatment.
Blood pressure (mmHg)
May rise with painHypotension is not expected in an isolated minor injury.
Respiratory rate (breaths/min)
May rise with painPersistent tachypnea suggests more than a minor isolated injury.
Oxygen saturation (SpO₂)
Usually preservedDesaturation suggests thoracic injury or concurrent disease.
Front-load in the triage report
- Localized pain and swelling after a matching mechanism are common.
- Location and pain?
- Swelling or deformity?
ContusionCommon presentation pattern
HPI
Clarify swelling or deformity; distal csm; range of motion or weight-bearing.
Signs & symptoms
Localized pain and swelling after a matching mechanism are common.
Focused exam
Reassess pain, swelling, perfusion, and neurologic status after movement or intervention; Inspect, palpate, assess active motion only when safe, test joint stability cautiously, and document distal CSM and joint above and below.
Brief pathophysiology
Contusion may explain the presenting symptoms through a common clinical mechanism, while serial assessment checks for complications or an alternate cause.
What the trend may show
Isolated musculoskeletal injury often leaves central vital signs near baseline. Persistent abnormality should prompt reassessment for hemorrhage, thoracic injury, infection, or a medical cause.
Heart rate (bpm)
May rise with painTachycardia can reflect pain or distress; trend after treatment.
Blood pressure (mmHg)
May rise with painHypotension is not expected in an isolated minor injury.
Respiratory rate (breaths/min)
May rise with painPersistent tachypnea suggests more than a minor isolated injury.
Oxygen saturation (SpO₂)
Usually preservedDesaturation suggests thoracic injury or concurrent disease.
Front-load in the triage report
- Localized pain and swelling after a matching mechanism are common.
- Swelling or deformity?
- Distal CSM?
DVTImportant alternative presentation
HPI
Clarify mechanism; location and pain; swelling or deformity.
Signs & symptoms
Atraumatic swelling or systemic signs suggest another cause.
Focused exam
Expose only as needed, inspect and palpate systematically, and document distal circulation, sensation, and movement; Reassess pain, swelling, perfusion, and neurologic status after movement or intervention.
Brief pathophysiology
DVT can resemble soft-tissue injury / sprain through overlapping symptoms or referred physiology despite a different primary mechanism.
What the trend may show
Pulmonary embolism may have normal observations. Tachycardia, tachypnea, or hypoxemia increase concern; hypotension identifies hemodynamic compromise rather than being required for diagnosis.
Heart rate (bpm)
May riseTachycardia is common but neither sensitive nor specific.
Respiratory rate (breaths/min)
May riseTachypnea may be an early sign of increased ventilatory demand.
Oxygen saturation (SpO₂)
May fallHypoxemia may occur, but a normal saturation does not exclude PE.
Blood pressure (mmHg)
Often preservedHypotension suggests high-risk PE with obstructive shock.
Front-load in the triage report
- Atraumatic swelling or systemic signs suggest another cause.
- Mechanism?
- Location and pain?
CellulitisImportant alternative presentation
HPI
Clarify location and pain; swelling or deformity; distal csm.
Signs & symptoms
Atraumatic swelling or systemic signs suggest another cause.
Focused exam
Reassess pain, swelling, perfusion, and neurologic status after movement or intervention; Inspect, palpate, assess active motion only when safe, test joint stability cautiously, and document distal CSM and joint above and below.
Brief pathophysiology
Cellulitis can resemble soft-tissue injury / sprain through overlapping symptoms or referred physiology despite a different primary mechanism.
What the trend may show
Isolated musculoskeletal injury often leaves central vital signs near baseline. Persistent abnormality should prompt reassessment for hemorrhage, thoracic injury, infection, or a medical cause.
Heart rate (bpm)
May rise with painTachycardia can reflect pain or distress; trend after treatment.
Blood pressure (mmHg)
May rise with painHypotension is not expected in an isolated minor injury.
Respiratory rate (breaths/min)
May rise with painPersistent tachypnea suggests more than a minor isolated injury.
Oxygen saturation (SpO₂)
Usually preservedDesaturation suggests thoracic injury or concurrent disease.
Front-load in the triage report
- Atraumatic swelling or systemic signs suggest another cause.
- Location and pain?
- Swelling or deformity?
Referred painImportant alternative presentation
HPI
Clarify swelling or deformity; distal csm; range of motion or weight-bearing.
Signs & symptoms
Atraumatic swelling or systemic signs suggest another cause.
Focused exam
Reassess pain, swelling, perfusion, and neurologic status after movement or intervention; Inspect, palpate, assess active motion only when safe, test joint stability cautiously, and document distal CSM and joint above and below.
Brief pathophysiology
Referred pain can resemble soft-tissue injury / sprain through overlapping symptoms or referred physiology despite a different primary mechanism.
What the trend may show
Isolated musculoskeletal injury often leaves central vital signs near baseline. Persistent abnormality should prompt reassessment for hemorrhage, thoracic injury, infection, or a medical cause.
Heart rate (bpm)
May rise with painTachycardia can reflect pain or distress; trend after treatment.
Blood pressure (mmHg)
May rise with painHypotension is not expected in an isolated minor injury.
Respiratory rate (breaths/min)
May rise with painPersistent tachypnea suggests more than a minor isolated injury.
Oxygen saturation (SpO₂)
Usually preservedDesaturation suggests thoracic injury or concurrent disease.
Front-load in the triage report
- Atraumatic swelling or systemic signs suggest another cause.
- Swelling or deformity?
- Distal CSM?
Findings that should escalate concern
- Neurovascular deficit, rapidly expanding swelling, open wound, deformity, severe pain out of proportion, or inability to use the limb is high risk.
- Occult fracture, tendon rupture, or compartment syndrome: Bony tenderness, functional loss, weakness, tense swelling, or escalating pain.
Continue the clinical pathway
Clinical and academic sources
Curated clinical guidance and peer-reviewed evidence supporting this presentation. Current BCEHS guidance, medical direction, and local policy remain authoritative for practice.
BCEHS Handbook — specific CPGs
Supporting clinical and academic evidence
- CEDIS Presenting Complaint List updateCanadian Association of Emergency Physicians
Presenting-complaint terminology and categorization context. It does not establish a prehospital “top 100” ranking.
- Major trauma: assessment and initial managementNational Institute for Health and Care Excellence
Evidence-based initial assessment, hemorrhage control, imaging, and trauma-system guidance.
- Guidelines for the acute care of severe limb traumaAnaesthesia Critical Care & Pain Medicine · 2021
Soft-tissue damage, neurovascular compromise, hemorrhage, pain, and limb-threatening injury assessment.