Romberg's test

The Romberg's test, also known as Romberg's sign or the Romberg maneuver, is a commonly used clinical examination to assess neurological function, particularly balance and proprioception. In certain situations, it is also used to evaluate suspected impairment due to alcohol or other intoxicants.

Romberg

The Premise of the Romberg's Test

Dr Romberg

Romberg's test operates on the premise that maintaining balance while standing requires at least two of the three following sensory inputs:

• Proprioception: This is the sense of body position, enabling an individual to perceive the location of different body parts in relation to each other and to the environment without relying on vision.
• Vestibular function: This refers to the inner ear system that provides information about head position and movement, as well as spatial orientation.
• Vision: Visual input helps monitor and correct body position and movement in relation to the surrounding environment.

Spinal cord tracts

Performing the Romberg's Test

To perform the Romberg's test, the examiner asks the patient to stand with feet together, arms at their sides, and initially with eyes open. After observing for sway or loss of balance, the patient is then instructed to close their eyes. An increase in sway or a loss of balance upon eye closure is considered a positive Romberg's sign, indicating a loss of proprioception and/or vestibular function.

It is crucial for the examiner to stand close to the patient during the test to ensure safety, as a positive Romberg's sign can result in the patient falling.

Clinical Applications and Interpretations

A positive Romberg's sign is typically seen in conditions that affect proprioception, such as peripheral neuropathies (like diabetic neuropathy), and conditions affecting the dorsal columns of the spinal cord, like tabes dorsalis and multiple sclerosis. Vestibular dysfunctions and certain cerebellar disorders can also result in a positive Romberg's sign.

The Romberg's test, however, does not discriminate between these different etiologies, and further diagnostic evaluation is necessary to identify the specific cause.

In the context of assessing driving under the influence, a positive Romberg's test can be suggestive of intoxication, but must be considered in conjunction with other clinical signs and findings.

References

• [1] Saravanan, S., & Al-Hashel, J. Y. (2018). Clinical signs in neurology: a primer. Mayo Clinic.
• [2] Hanewinckel, R., Drenthen, J., van Oijen, M., Hofman, A., van Doorn, P. A., & Ikram, M. A. (2016). Prevalence of polyneuropathy in the general middle-aged and elderly population. Neurology, 87(18), 1892-1898.
• [3] Demiryoguran, N. S., Karcioglu, O., Topacoglu, H., Kiyan, S., Ozbay, D., Onur, O., & Demir, O. F. (2006). Efficacy of the Romberg test in the intoxicated ED patient. American Journal of Emergency Medicine, 24(4), 441-445.

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