Cervical Collar–Associated Morbidity and Management

Adverse Effects of Cervical Collars

Hard and semi‑rigid cervical collars frequently cause neck‑muscle soreness and discomfort in adult patients, with pain typically emerging after more than 48–72 hours of continuous wear. 1, 2
The restriction imposed by collars leads to paraspinal muscle strain as patients maintain a static posture against the device’s resistance. 3, 4
Direct pressure‑related discomfort arises at the contact points between the collar and neck structures, contributing to tissue irritation. 1, 5

Keeping a collar in place beyond 48–72 hours markedly increases overall morbidity, with complications escalating rapidly. 1, 2, 5
Pressure ulcers are common; severe cases may require skin grafting and become sources of sepsis. 1, 2
Increased intracranial pressure worsens outcomes in patients who also have head injuries. 1, 2
Airway compromise can be life‑threatening when collars are left in situ for extended periods. 1, 2
Failed enteral nutrition and gastrostasis promote aspiration and ventilator‑associated pneumonia. 1, 2
Thromboembolic events occur in 7 %–100 % of immobilized patients lacking adequate prophylaxis. 2
Each pressure ulcer incurs an average treatment cost of ≈ $30,000 with prolonged healing time. 1, 2
Respiratory complications from prolonged immobilization are a leading cause of death in elderly patients with cervical spine injuries, accounting for ≈ 27 % mortality. 2

The American Heart Association advises against routine cervical‑collar application by first‑aid providers, citing documented harms that outweigh potential benefits. 6
Do not retain patients in collars beyond 72 hours without a definitive surgical plan, as the risk of complications often surpasses the risk of a missed injury. 1, 2

Assess pressure points for tissue injury, especially after 48–72 hours of collar wear. 1, 2
Re‑evaluate the need for continued immobilization using high‑quality CT scanning, which has ≈ 98 % sensitivity for clinically significant cervical injuries. 3
If imaging reliably excludes unstable injury, consider collar removal; early mobilization and therapeutic exercise are effective in reducing both acute and chronic neck pain. 7, 8, 9

Rigid collars may not adequately restrict motion of unstable cervical injuries, particularly at the craniocervical and cervicothoracic junctions, the two most frequent injury sites. 1, 2, 5
Application of collars can produce paradoxical movement of adjacent vertebrae, potentially compromising injury stabilization. 1, 2

The American Heart Association recommends against routine application of cervical collars by first aid providers due to documented harms that outweigh potential benefits, with a weak recommendation and very-low-quality evidence 10
Cervical collars may increase intracranial pressure, particularly in patients with co-existing head trauma, and can cause pressure sores, complicate airway management, lead to ventilator-associated pneumonia and delirium, and paradoxically may not effectively restrict movement of unstable cervical injuries 10, 11
If a collar must be used, the American College of Cardiology does not provide specific guidance, however, other guidelines suggest Newport or Miami J collars are preferred due to favorable skin pressure patterns and superior patient comfort, although this specific recommendation is not cited 11
For patients requiring airway management, at least the anterior portion of the collar should be removed to facilitate intubation, as recommended by the American Heart Association 11

Prolonged collar use beyond 48-72 hours causes morbidity that may exceed the risks of missed cervical spine injury, with each pressure ulcer costing approximately $30,000 to treat and having a prolonged healing time 12