Hoffmann and his Assistant!!!

“upper limb equivalent of the Babinski sign test”

- hyperreflexia
- cervical cord

#MedTwitter #neurotwitter #EndNeurophobia

1/ Image
Hoffmann's sign

“snaps the nail of the middle finger leads to flexion of the thumb and/or index”

discovered by German neurologist Johann Hoffman (1857–1919), but
it was described by his assistant Hans Curschmann in 1911

via: virtualmedstudent

2/
Mayer's reflex

“forceful passive flexion of the middle finger. Involuntary adduction of the thumb normally follows; absence of the reflex suggests a lesion”

discovered by Austrian neuropsychiatry Carl Mayer (1862–1936)

doctorlib.info/neurology/fund… via: doctorlib

3/ Image
Rossolimo's hand sign

“reflex hammer, tap the palmar surface of the metacarpophalangeal joint”

discovered by Russian neurologist Grigory Ivanovich Rossolimo (1860–1928)

musculoskeletalkey.com/reflexes/ via: Musculoskeletal Key

4/ Image
Wartenberg's sign

“taps against the patient’s fingers lead to flexion of fingers and distal phalanx of the thumb”

discovered by Russian neurologist Robert Wartenberg (1887–1956)

via: Neuron Bundle

5/
Chaddock's wrist sign

“Grasp the patient’s wrist, putting pressure on the palmaris longus tendon”
the patient flexes the wrist and extends the fingers

discovered by American neurologist Charles Gilbert Chaddock (1861–1936)

musculoskeletalkey.com/reflexes/ via: Musculoskeletal Key

6/ Image
Gordon's extension sign

“compression of the projection of the radial side of the pisiform bone lead to fingers extension”

discovered by French-American neurologist Alfred Gordon (1874–1953)

doi.org/10.1590/0004-2… via: Arq Neuropsiquiatr

7/ Image
Hachinski's sign

“raise hands from the knees and hold them at shoulder level”
upward movement of the right or left thumb

discovered by Ukrainian neurologist Vladimir Hachinski (alive)

doi.org/10.1212%2FCPJ.… via: Neurology

8/
Vernea's and Botez's reflex

“Superficial stimulation of dorsum of fingers in patients with a grasp reflex”

discovered by Romanian neurologists I. Vernea and M.I. Botez

doi.org/10.1111/j.1600… via: Acta Neurol Scand

9/ Image
Trömner's reflex

“flicks the middle finger pad leads to flexion of the thumb and/or index”

discovered by German neurologist Ernst Trömner (1868–1930)

youtube.com/shorts/kEbnFG_… via: NeurologiaBr - Dr Euldes

10/
Wazir's sign

“extended wrist is tapped at the level of the palmaris longus”

discovered by Malaysian orthopedic surgeon Wazir NN

pubmed.ncbi.nlm.nih.gov/21298241/ via: Singapore Med J

11/ Image

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More from @theneurolander

Oct 28
The Sound of Footsteps!!!

“it's possible to learn more about neurologic status from watching a patient walk than from any other single procedure”

Russell Nelson DeJong (1907-1990)

#MedTwitter #neurotwitter #EndNeurophobia

1/ Image
Phases of gait

Critical incidents!

Stance (60%): (1) heel strike (2) foot flat (3) heel off

(4) toe-off

Swing (40%): (5) toe clearance (6) heel strike

via: Morgan E

2/
Cerebellar ataxic gait

“Wide based, reeling, careening (drunken sailor)”

- inability to walk tandem
- step length varies unpredictably
- turning may bring out a stagger
- acute alcohol intoxication

via: Matthewhr1

3/
Read 25 tweets
Oct 24
Babinski and Friends!!!

“Loss of descending pyramidal control of the reflex arc to suppress extensor withdrawal results in the upgoing toes in the plantar reflex known as Babinski's sign”

1st described by Joseph Babinskiin 1896

#MedTwitter #neurotwitter #EndNeurophobia

1/
Bing's sign

“pricking of the dorsum of foot or the 1st toe with a pin”

discovered by Swiss neurologist Paul Robert Bing (1878–1956)

youtube.com/shorts/SgIBzIG… via: Nagesh's Clinical Medicine

2/
Cornell's sign

“stroking the dorsum of foot along the extensor tendon of the 1st toe”

discovered by American neuropsychologist Ethel Letitia Cornell (1892–1963)

via: UM Clinical Skills

3/
Read 24 tweets
Oct 23
Movement Disorders – Dystonia (Writer's cramp)

“abnormal postures and muscle spasms interfering in writing motor performance”

- Most freq focal, task-specific dystonia.
- Managed botox > orals (anticholinergic)

#MedTwitter #neurotwitter #EndNeurophobia #movementdisorder
1/ Image
History #dystonia

First description

Bernardino Ramazzini (1633-1714) discussed focal hand dystonia as a muscle strain in “Scribes and Notaries” De Morbis Artificum Diatriba.

doi.org/10.1016/s0140-…

2/ ImageImage
Writer's cramp (focal hand dystonia)

doi.org/10.1002/mds.23… via: Mov Disord

3/
Read 13 tweets
Oct 15
Movement Disorders - Ballism

“chorea that affects proximal joints such as shoulder or hip” Mov Disord Society, 2011

- Freq causes: vascular and metabolic

- Good response to antipsychotics, usually self-limiting

#MedTwitter #neurotwitter #EndNeurophobia #movementdisorder

1/ Image
First report

In 1927 James Purdon Martin
Hemichorea resulting from a local lesion of the brain

doi.org/10.1093/brain/…

2/ Image
Hemichorea-hemiballismus: nonketotic hyperglycemia

doi.org/10.1212/WNL.0b… via: Neurology

3/
Read 25 tweets

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