Definition

Noun: A diagnostic procedure used in medicine to assess for the presence of an obstruction in the spinal canal, particularly within the subarachnoid space. It involves observing the response of cerebrospinal fluid (CSF) pressure to manual compression of the jugular veins in the neck.

Usage

The term is used specifically in medical and neurological contexts to name a clinical test. It is typically used in its full form, 'Queckenstedt's test', or sometimes simply as 'the Queckenstedt test'. It describes a historical physical examination maneuver.

Examples

• Noun:
  • The neurologist performed Queckenstedt's test to rule out a spinal block.
  • A positive Queckenstedt's test, indicated by no rise in CSF pressure upon jugular compression, suggested a spinal canal obstruction.

Advanced Usage

• "Positive Queckenstedt's test": A result indicating an obstruction is present, as cerebrospinal fluid pressure fails to rise appropriately.
  • The patient's positive Queckenstedt's test was consistent with a spinal tumor.
• "Negative Queckenstedt's test": A result indicating no obstruction is detected, with a normal rise and fall of CSF pressure.
  • A negative Queckenstedt's test helped confirm the diagnosis was not due to a mechanical blockage.

Variants and Related Words

• Queckenstedt test (noun): An alternative form without the possessive 's'.
• Queckenstedt's sign (noun): The finding or result observed during the test (e.g., absence of pressure rise).
• Queckenstedt maneuver (noun): Another term describing the procedural action of the test.

Synonyms

• Spinal manometry (noun): A more general term for measuring CSF pressure, which may include the Queckenstedt maneuver.
• Jugular compression test (noun): A descriptive synonym for the procedure.

Notes on Meaning

This test is named after the German physician Hans Queckenstedt. While historically significant, it has been largely superseded by modern imaging techniques like MRI and CT myelography for diagnosing spinal canal blockages. The term now primarily appears in historical or educational discussions of neurological examination.

Noun

1. a test to determine whether there is a blockage of the spinal canal