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Cervical Strain Clinical Presentation

  • Author: Warren Magnus, DO; Chief Editor: Trevor John Mills, MD, MPH  more...
 
Updated: Oct 15, 2015
 

History

The most important issues surrounding cervical spine injury involve accurate diagnosis. Emergency departments in the United States and Canada annually treat more than 13 million patients with trauma who are at risk for cervical spine injury. Although most of these cases represent soft tissue injury, the paramount concern for the emergency medicine physician is to identify the patients with fractures, dislocations, or spinal cord injury.

Ascertainment of the mechanism of injury is essential. This postinjury analysis can give significant clues to the relative risk of strain versus a more serious cervical spine injury. The greater the amount of force experienced by the cervical spine, the greater the risk of destabilizing injury and the need to rapidly eliminate more severe diagnoses.

Pain is the most common complaint reported in cervical spine injuries. Severity of discomfort with cervical strains is typically low, although some patients may report significant pain, particularly with motor vehicle injury mechanisms.

Soft tissue swelling is a highly variable finding but can cause significant distress to patients presenting with cervical spine strain injuries. Self-reported tenderness may be noted on the patient’s history. Following a cervical strain injury, patients may report varying degrees of muscle spasms.

Reported range of motion of the cervical spine is important to diagnosis because patients who are able to voluntarily move their cervical spine can help the examining physician to clinically eliminate certain more significant cervical spine injuries and conditions. All posttrauma patients with cervical pain should be "clinically cleared" using National Emergency X-Radiography Utilization Study (NEXUS) or the Canadian C-Spine Rule as decision rules to guide the use of cervical spine radiography to rule out cervical fractures, dislocations, or spinal cord injury.

Radicular pain patterns can occur in cervical spine injuries of all types and do not necessarily eliminate strain injuries from the differential.

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Physical

The following physical examination is focused on the evaluation of patients in whom a fracture, dislocation, or ligamentous instability has been eliminated by examination or diagnostic imaging.

  • Edema of cervical tissues, although not to the point of pitting, is a common finding in patients with cervical strain. The most common presentation is a palpable bogginess of the cervical posterior musculature.
  • Tissue texture changes beyond edema are also commonly present (eg, ropiness, tightness, increased muscle tension).
  • Mild warmth over the involved tissues is not uncommon and is the result of inflammation of the involved tissues.
  • Limited range of motion of the involved area is often the result of muscle spasm and is not necessarily reflective of the severity of the injury. However, all patients with a significant reduction of range of motion should be considered for cervical spine radiographs.
  • Where radicular symptoms are present, the Spurling Maneuver (compression of the cervical spine by downward pressure) can be useful. Reproduction of the radicular symptom with compression suggests encroachment on the nerve by arthritic change or disk herniation rather than a muscular or ligamentous strain.

In 1995, the Quebec Task Force on Whiplash-Associated Disorders, as part of their consensus document, proposed the following grading system.[1] This system has become more widely referenced in recent years as literature reviews have begun to examine the effectiveness of various therapeutic modalities for treatment of whiplash-associated disorders (ie, cervical strain).[2]

  • Grade I - Complaint of neck stiffness only with no associated findings
  • Grade II - Complaint of neck pain with physical findings such as palpable tenderness or reduced range of motion
  • Grade III - Complaint of neck pain with physical findings and objective neurologic findings such as reduced muscle strength or deep tendon reflexes
  • Grade IV - Adds radiologic changes such as fracture or dislocation and no longer falls within the realm of cervical strain

With certainty, the majority of cervical strain injuries fall within Quebec Task Force grades I and II.

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Causes

The causes of cervical strain injuries can be divided into general categories based on injury speed.

Rapid injury can occur due to traumatic mechanisms that result in rapid whipping of the head on the neck, hence the common term "whiplash," such as the following:

  • Motor vehicle accidents
  • Falls
  • Assault
  • Other trauma

Low-velocity injuries can be more elusive in their precise mechanism and can vary from acute to chronic in their presentation. Strained cervical postures (eg, painting overhead, sitting in the front row at the movies) are common. Chronic strains (eg, using the neck to hold the telephone, other malposition syndromes) and repetitive motion injuries are often easier for the patient to pinpoint.

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Contributor Information and Disclosures
Author

Warren Magnus, DO Center Medical Director, Concentra

Warren Magnus, DO is a member of the following medical societies: American Osteopathic Association

Disclosure: Nothing to disclose.

Specialty Editor Board

Francisco Talavera, PharmD, PhD Adjunct Assistant Professor, University of Nebraska Medical Center College of Pharmacy; Editor-in-Chief, Medscape Drug Reference

Disclosure: Received salary from Medscape for employment. for: Medscape.

Eric L Legome, MD Chief, Department of Emergency Medicine, Kings County Hospital Center; Professor Clinical, Department of Emergency Medicine, State University of New York Downstate College of Medicine

Eric L Legome, MD is a member of the following medical societies: Alpha Omega Alpha, Council of Emergency Medicine Residency Directors, American Academy of Emergency Medicine, American College of Emergency Physicians, Society for Academic Emergency Medicine

Disclosure: Nothing to disclose.

Chief Editor

Trevor John Mills, MD, MPH Chief of Emergency Medicine, Veterans Affairs Northern California Health Care System; Professor of Emergency Medicine, Department of Emergency Medicine, University of California, Davis, School of Medicine

Trevor John Mills, MD, MPH is a member of the following medical societies: American Academy of Emergency Medicine, American College of Emergency Physicians

Disclosure: Nothing to disclose.

Acknowledgements

The authors and editors of Medscape Reference gratefully acknowledge the contributions of previous author, Natalie T Shum, MD, to the development and writing of this article.

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External craniocervical ligaments.
Internal craniocervical ligaments.
Lateral view of the muscles of the neck.
Anterior view of the muscles of the neck.
Radiograph of the cervical spine shows a normal lordotic curve.
Radiograph of the cervical spine shows straightening of the lordotic curve.
 
 
 
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