Geriatric Trauma: Fragile Friends

Author: Tamir Zitelny, MD; Blake Briggs, MD

Elderly trauma patients are some of the most complex and unforgiving cases we see in the ED. They account for a disproportionate share of trauma-related morbidity and mortality despite often experiencing “low-energy” mechanisms like ground-level falls. What makes them unique is not just their age alone, but the physiological changes of aging, the prevalence of comorbidities, polypharmacy, and the subtlety of presentation. In short, trauma in the elderly is often not “minor”, even in cases of more mild mechanisms of injury.^1,5 So, without further ado, let’s break down why geriatric trauma is different, how to evaluate these patients, and what traps to avoid!

Quick Physiology Refresher: The Aging Body

Let’s keep it simple: aging blunts physiologic response and vital signs can lie. Decreased baroreceptor sensitivity means shock can present without tachycardia, while stiff vasculature and reduced cardiac reserve make even modest hemorrhage dangerous.³ Osteoporosis turns trivial falls into major fractures, and cerebral atrophy delays symptoms of intracranial bleeding.⁴ Polypharmacy (e.g. beta blockers, sleep-aid medications) and chronic anticoagulation use ensure that every trauma has bleeding potential.^7,8

Tachycardia and hypotension are less reliable indicators of shock in the elderly.^1,2 And that’s all you need to remember before focusing on what matters most: recognition and management.

Common Injury Patterns

It can be quite easy to roll your eyes when patients with “minor injuries from an unimpressive mechanism” are rushed into your ED, however, the elderly can be vulnerable to serious damage despite what appear to be trivial traumatic events.

Subdural Hematoma

• Most common lethal head injury in the elderly⁸
• Cerebral atrophy → more intracranial space → delayed symptoms from bleeds
• Even “minor” falls can bleed big, especially in patients on warfarin or DOACs⁹
• CT everyone with a head strike, confusion, or anticoagulant use. The boards will expect this. Canadian CT head rules preclude patients older than 65!

Rib Fractures

• One rib fracture in an 80-year-old is roughly equivalent to three in a 30-year-old in terms of the hemodynamic and respiratory impact – wild, I know!⁵
• Pain → splinting → decreased air movement → pneumonia
• Admit most, especially if ≥2 ribs fractured or poor pulmonary reserve
• Aggressive pain control and early pulmonary hygiene save lives; time to break out the incentive spirometer!

Hip Fractures

• Classic elderly trauma pattern; mortality approaches 20-30% at one year⁶
• Surgery within 48 hours improves outcomes; delays worsen mortality
• Always evaluate for concomitant head or c-spine injury from the same fall

Spine Fractures

• Cervical (especially odontoid) and thoracolumbar compression fractures are common¹⁰
• Mechanism is often low energy, even coughing or sitting too quickly can cause spinal fractures in patients with significant bone disease
• Maintain full spinal precautions until imaging confirms stability
• Don’t waste your time with spinal x-rays. If there’s midline tenderness or neuro deficit, they’re off to the donut of truth (CT).

Initial Assessment: Don’t Trust the Vitals

Classic primary survey rules still apply: airway, breathing, circulation. The difference is that elderly physiology hides danger. A “normal” blood pressure and heart rate do not mean stability. Hypoperfusion may be reflected as altered mental status, oliguria, or the patient just “not looking right” as per family.¹² A lactate and base deficit remain the most useful early markers of occult shock in this demographic.¹¹

Airway management can be tricky as cervical arthritis and reduced neck mobility warrant a bit more pause during intubation, and aspiration risk is higher. Oxygenation can deteriorate rapidly with even small reductions in tidal volume due to decreased pulmonary compliance.⁴

Lastly, circulatory assessment can be confounded by a patient’s daily medications. Beta-blockers blunt tachycardic responses, and calcium channel blockers or ACE inhibitors further confound hemodynamics. Look for end-organ clues (mentation, skin perfusion, and urine output) instead.³

Resuscitation and Management

The guiding principle in managing geriatric trauma is balance. Intervene aggressively enough to prevent deterioration, but gently enough to avoid iatrogenic harm.

Fluids and Hemodynamics
Elderly patients lack the cardiopulmonary reserve to tolerate large-volume crystalloid resuscitation. Instead, use small, balanced fluid boluses with frequent reassessment, and move early to blood products for persistent hypotension or suspected hemorrhage. Remember: beta-blockers can mask tachycardia, so “normal vitals” do not always equal stability!¹¹

Airway and Breathing
Airway management should be proactive, not reactive. Anticipate a difficult airway. For rib fractures, early pain control is the cornerstone of care. Regional anesthesia and multimodal analgesia (acetaminophen, lidocaine patches, low-dose opioids) improve outcomes. Encourage early incentive spirometry and mobilization to prevent pneumonia.⁵

Pain Control
Pain management is often a double-edged sword.  Undertreatment leads to splinting, hypoventilation, delirium, and immobility. Overtreatment with opioids can cause respiratory depression and confusion. Regional anesthesia techniques such as fascia iliaca or paravertebral blocks are increasingly recognized as safer and more effective options for controlling pain from hip and rib fractures in this population. If opioids are required, start low, titrate slowly, and reassess frequently.¹⁰

Anticoagulation
Anticoagulation reversal should be guided by bleeding risk and patient presentation. Reverse in any patient with:

1. Confirmed intracranial bleeding,
2. Active clinically significant bleeding (meaning it impacts hemodynamics), 
3. Unexplained hypotension after trauma, or
4. Patients that need to go to the OR

If the patient is anticoagulated and has a head strike with neurologic signs, pelvic pain, or another concerning mechanism, it would be reasonable to initiate reversal while awaiting imaging. However, do not reverse trivial mechanisms without bleeding or risk factors. The goal is to prevent catastrophic hemorrhage, not treat every bruise.^7,8

Delirium, Frailty, and Goals of Care
Management does not stop at fixing bones and stopping bleeds. Delirium prevention (in this population inherently at a higher risk for it) is essential: minimize unnecessary medications and engage family early.

And remember, frailty, more than chronological age, predicts outcomes. A frail patient with a hip fracture may face a very different trajectory than a patient who was just golfing last week! Lastly, goals-of-care discussions should not be delayed if necessary. While it can be an uncomfortable conversation, aggressive management may not align with every patient’s wishes, and clarity early on avoids unnecessary suffering.^13-15

High-Yield Takeaways

• Low mechanism ≠ low risk. CT early and often²
• Reverse anticoagulation early when significant bleeding is suspected and in patients need to go to the OR⁷
• Rib fractures can kill – admit liberally and control pain aggressively⁵
• Hip fractures need OR fast (<48 hrs) to prevent mortality⁶
• If they look “off,” they just might be. Trust your gestalt- labs often lag
• Frailty guides everything! Treat the patient, not just the mechanism¹³

References

1. Perdue PW, Watts DD, Kaufmann CR, Trask AL. Differences in mortality between elderly and younger adult trauma patients. J Trauma. 1998;45(4):805-810.
2. Spaniolas K, Cheng JD, Gestring ML, et al. Ground level falls and mortality in elderly patients. J Trauma. 2006;61(5):1120-1124.
3. Meldon SW, Reilly M, Drew BL, Mancuso C, Fallon W. Trauma in the very elderly: outcomes at trauma and nontrauma centers. J Trauma. 1997;42(6):1040-1045.
4. Rosen P, Connors AF. Geriatric trauma. Emerg Med Clin North Am. 2000;18(1):11-29.
5. Bulger EM, Arneson MA, Mock CN, Jurkovich GJ. Rib fractures in the elderly. J Trauma. 2000;48(6):1040-1046.
6. Haentjens P, Magaziner J, Colón-Emeric CS, et al. Excess mortality after hip fracture among older adults. Ann Intern Med. 2010;152(6):380-390.
7. Pieracci FM, Barie PS. Management of anticoagulation in elderly trauma patients. Crit Care Med. 2007;35(6 Suppl):S311-S319.
8. Nishijima DK, Offerman SR, Ballard DW, et al. Immediate and delayed traumatic intracranial hemorrhage in patients with head trauma and preinjury warfarin or clopidogrel use. Ann Emerg Med. 2012;59(6):460-468.
9. Li T, You J, Luo Z, et al. Outcomes in elderly trauma patients on anticoagulants: A systematic review. Injury. 2021;52(4):863-872.
10. Ryan MD, Henderson JJ. The epidemiology of fractures and fracture-dislocations of the cervical spine. Injury. 1992;23(1):38-40.
11. Callaway DW, Shapiro NI, Donnino MW, Baker C, Rosen CL. Serum lactate and base deficit as predictors of mortality in elderly trauma patients. Acad Emerg Med. 2012;19(2):182-187.
12. Inouye SK, Schlesinger MJ, Lydon TJ. Delirium: a symptom of how hospital care is failing older persons. Am J Med. 1999;106(5):565-573.
13. Joseph B, Pandit V, Zangbar B, et al. Superiority of frailty over age in predicting outcomes among geriatric trauma patients: a prospective analysis. JAMA Surg. 2014;149(8):766-772.
14. Cooper Z, Rogers SO, Ngo L, et al. Comparison of frailty and comorbidity measures in predicting outcomes after trauma in older adults. Ann Surg. 2021;273(6):1086-1093.