Ernst Trömner (24 August 1868 – 27 May 1930) was a German

neurologist Neurology (from el, νεῦρον (neûron), "string, nerve" and the suffix -logia, "study of") is the branch of medicine dealing with the diagnosis and treatment of all categories of conditions and disease involving the brain, the spinal c ...

who was a native of

Meerane Meerane () is a town in the Zwickau district of Saxony, Germany. It lies midway between the towns of Altenburg and Zwickau, west of Chemnitz. As of 31 December 2015, there were 14,851 inhabitants. The population has declined from a peak of over 2 ...

in the

Kingdom of Saxony The Kingdom of Saxony (german: Königreich Sachsen), lasting from 1806 to 1918, was an independent member of a number of historical confederacies in Napoleonic through post-Napoleonic Germany. The kingdom was formed from the Electorate of Saxon ...

. In 1893 he earned his medical doctorate at

Leipzig Leipzig ( , ; Upper Saxon: ) is the most populous city in the German state of Saxony. Leipzig's population of 605,407 inhabitants (1.1 million in the larger urban zone) as of 2021 places the city as Germany's eighth most populous, as wel ...

, and was later director of the neurological department of St. Georg Hospital in

Hamburg (male), (female) en, Hamburger(s), Hamburgian(s) , timezone1 = Central (CET) , utc_offset1 = +1 , timezone1_DST = Central (CEST) , utc_offset1_DST = +2 , postal ...

. He designed the Trömner reflex hammer, a popular

reflex hammer A reflex hammer is a medical instrument used by practitioners to test deep tendon reflexes. Testing for reflexes is an important part of the neurological physical examination in order to detect abnormalities in the central or peripheral nervous s ...

that is used for evoking

cutaneous Skin is the layer of usually soft, flexible outer tissue covering the body of a vertebrate animal, with three main functions: protection, regulation, and sensation. Other animal coverings, such as the arthropod exoskeleton, have different d ...

and myotatic responses. His name is also associated with "Trömner's reflex" of which, with the fingers of the patient partially flexed, the tapping of the volar aspect of the tip of the middle or

index finger The index finger (also referred to as forefinger, first finger, second finger, pointer finger, trigger finger, digitus secundus, digitus II, and many other terms) is the second digit of a human hand. It is located between the thumb and the mid ...

causes flexion of all four fingers and

thumb The thumb is the first digit of the hand, next to the index finger. When a person is standing in the medical anatomical position (where the palm is facing to the front), the thumb is the outermost digit. The Medical Latin English noun for thumb ...

. This phenomenon is associated with

pyramidal tract The pyramidal tracts include both the corticobulbar tract and the corticospinal tract. These are aggregations of efferent nerve fibers from the upper motor neurons that travel from the cerebral cortex and terminate either in the brainstem (''cort ...

lesions with moderate

spasticity Spasticity () is a feature of altered skeletal muscle performance with a combination of paralysis, increased tendon reflex activity, and hypertonia. It is also colloquially referred to as an unusual "tightness", stiffness, or "pull" of muscles ...

References

Mondofacto Dictionary
(definition of eponym)
Southwest Medical Online
Trömner Reflex Hammer

(biographical information) 1868 births 1930 deaths People from Meerane People from the Kingdom of Saxony German neurologists {{Germany-med-bio-stub