Hip / pelvic injury
A streamlined, differential-led presentation for rapid clinical review.
Twenty-second review
- Hip and pelvic injury can disrupt bone, joint, major vessels, and mobility; older adults may sustain fracture after low-energy falls because of osteoporosis and frailty.
- Pelvic instability, shock, shortened externally rotated limb, inability to weight-bear, anticoagulation, or high-energy mechanism raises concern.
- Keep lumbar or referred pain in the differential; overlapping or concurrent illness remains possible.
- For hip / pelvic injury, 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.
Pelvic hemorrhageTime-sensitive high-risk possibility
HPI
Clarify mechanism; able to weight-bear; pain location.
Signs & symptoms
High-energy mechanism, instability, neurologic or vascular compromise, or shock.
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
Pelvic hemorrhage may cause hip / pelvic injury through a time-sensitive process capable of rapid physiological deterioration.
What the trend may show
Hemorrhage is a trend diagnosis: tachycardia and narrowing pulse pressure may precede hypotension. Age, pregnancy, medications, and pacing can blunt expected responses.
Heart rate (bpm)
Often risesTachycardia is a common compensatory response but may be absent.
Pulse pressure (mmHg)
May narrowNarrowing pulse pressure can reflect reduced stroke volume.
Blood pressure (mmHg)
May fall lateA normal pressure does not exclude significant compensated hemorrhage.
MAP (mmHg)
May fallA falling trend supports worsening perfusion; interpret with mental status and skin signs.
Front-load in the triage report
- Pelvic hemorrhage: High-energy mechanism, instability, neurologic or vascular compromise, or shock.
- Mechanism.
- Able to weight-bear?
DislocationTime-sensitive high-risk possibility
HPI
Clarify able to weight-bear; pain location; shortening/external rotation.
Signs & symptoms
High-energy mechanism, instability, neurologic or vascular compromise, or shock.
Focused exam
Reassess pain, swelling, perfusion, and neurologic status after movement or intervention; Assess limb length and rotation, pelvis and proximal femur tenderness, distal CSM, abdominal findings, and pre-injury mobility.
Brief pathophysiology
Dislocation may cause hip / pelvic injury 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
- Dislocation: High-energy mechanism, instability, neurologic or vascular compromise, or shock.
- Able to weight-bear?
- Pain location.
Proximal femur fractureCommon presentation pattern
HPI
Clarify mechanism; able to weight-bear; pain location.
Signs & symptoms
Pain, shortening, external rotation, and inability to weight-bear are classic but not universal.
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
Proximal femur fracture 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
- Pain, shortening, external rotation, and inability to weight-bear are classic but not universal.
- Mechanism.
- Able to weight-bear?
LumbarImportant alternative presentation
HPI
Clarify mechanism; able to weight-bear; pain location.
Signs & symptoms
Back, abdominal, or knee pathology can mimic hip injury.
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
Lumbar can resemble hip / pelvic injury through overlapping symptoms or referred physiology despite a different primary mechanism.
What the trend may show
Isolated injury may have normal observations. Serial heart rate, pressure, respiratory status, and oxygenation help identify occult hemorrhage or thoracic injury.
Heart rate (bpm)
May risePain, distress, and hemorrhage can increase rate; medications can blunt it.
Blood pressure (mmHg)
May fall lateA normal pressure does not exclude compensated hemorrhage.
Respiratory rate (breaths/min)
Trend rate / effortTachypnea may reflect pain, thoracic injury, shock, or acidosis.
Oxygen saturation (SpO₂)
Usually preservedLow saturation suggests thoracic injury, hypoventilation, or concurrent disease.
Front-load in the triage report
- Back, abdominal, or knee pathology can mimic hip injury.
- Mechanism.
- Able to weight-bear?
Referred painImportant alternative presentation
HPI
Clarify able to weight-bear; pain location; shortening/external rotation.
Signs & symptoms
Back, abdominal, or knee pathology can mimic hip injury.
Focused exam
Reassess pain, swelling, perfusion, and neurologic status after movement or intervention; Assess limb length and rotation, pelvis and proximal femur tenderness, distal CSM, abdominal findings, and pre-injury mobility.
Brief pathophysiology
Referred pain can resemble hip / pelvic injury through overlapping symptoms or referred physiology despite a different primary mechanism.
What the trend may show
Isolated injury may have normal observations. Serial heart rate, pressure, respiratory status, and oxygenation help identify occult hemorrhage or thoracic injury.
Heart rate (bpm)
May risePain, distress, and hemorrhage can increase rate; medications can blunt it.
Blood pressure (mmHg)
May fall lateA normal pressure does not exclude compensated hemorrhage.
Respiratory rate (breaths/min)
Trend rate / effortTachypnea may reflect pain, thoracic injury, shock, or acidosis.
Oxygen saturation (SpO₂)
Usually preservedLow saturation suggests thoracic injury, hypoventilation, or concurrent disease.
Front-load in the triage report
- Back, abdominal, or knee pathology can mimic hip injury.
- Able to weight-bear?
- Pain location.
Findings that should escalate concern
- Pelvic instability, shock, shortened externally rotated limb, inability to weight-bear, anticoagulation, or high-energy mechanism raises concern.
- Pelvic hemorrhage or dislocation: High-energy mechanism, instability, neurologic or vascular compromise, or shock.
Medication recognition
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.
- Pelvic trauma: WSES classification and guidelinesWorld Journal of Emergency Surgery · 2017
Hemorrhage risk, pelvic instability, physiological assessment, and management of pelvic trauma.