Jamir Pitton Rissardo Profile picture
Oct 28, 2022 25 tweets 14 min read Read on X
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/
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/
Hemiparetic (spastic hemiparesis) gait

“Involved leg spastic, circumduction, often with foot drop”

- pyramidal lesion
- sound by toe scraping, & wear of shoe at toe
- freq: stroke; arm flex, adduct, intern rotated; leg extend

via: onlinemedicalvideo

4/
Hemiparetic (spastic hemiparesis) gait

“Involved leg spastic, circumduction, often with foot drop”

via: Dr. Rishikesh A. Bhakare

5/
Scissoring gait

“Stiff legged, scissoring (wooden soldier)”

- congenital spastic diplegia and myelopathies
- narrow base
- steps are short and slow, feet seem to stick to the floor
- swaying without true loss of coordination

via: Alhadapediatrics

6/
Scissoring gait

“Stiff legged, scissoring (wooden soldier)”

youtube.com/shorts/d0LmaJn… via: Neurologia BP

7/
Parkinsonian gait

“Small steps, flexed posture, shuffling, festination”

- upper extremities are flexed, except fingers extended
- decreased arm swing
- en-bloc turning
- start hesitation

via: Dr. Prodigious

8/
Apraxic gait

“loss of the ability to use the legs properly in walking”

- frontal lobe disease
- disorganized walking skills
- shuffling small steps
- normal motor and sensory function on couch examination

via: Jenwit Thippawan

9/
Steppage (equine) gait

“high steppage pattern to clear the toes from the floor, double tap”

- foot drop and sensory ataxia
- double tap # sound: toe first (foot drop) heel first (sensory)

via: emrcpian

10/
Steppage (equine) gait

“high steppage pattern to clear the toes from the floor, double tap”

via: Alain Wambe

11/
Myopathic (waddling) gait

“Exaggerated ‘sexy’ hip motion, waddling, lumbar hyperlordosis”

- muscular dystrophy
- broad base

via: onlinemedicalvideo

12/
Myopathic (waddling) gait

“Exaggerated ‘sexy’ hip motion, waddling, lumbar hyperlordosis”

via: Dr. Yemin Ahmed

13/
Trendelenburg’s sign

“abnormal drop of the pelvis on the side of the swing leg due to hip abductor weakness”
“pelvic ptosis”

via: openmichigan

14/
Trendelenburg’s gait

“abnormal drop of the pelvis on the side of the swing leg due to hip abductor weakness”

youtube.com/shorts/ZUPQp5o… via: kenzothiazepine

15/
Antalgic gait

“an abnormal pattern of walking secondary to pain that ultimately causes a limp, whereby the stance phase is shortened relative to the swing phase”

via: Dr. Prodigious

16/
Sensory ataxic gait

“Wide-based, steppage”

- post columns or peripheral nerves
- “spinal ataxia”
- pt is extremely dependent on visual input for coordination (# cerebellar ataxia)
- “steppage gait” heel first
- ‘Frankenstein’ gait

youtube.com/shorts/hq4buUL… via: Tony scaria

17/
Spastic-ataxic gait

“proportion of each abnormality depends on the particulars of the case”

- Ataxic component: cerebellar or sensory

via: Dr. Sourya Acharya

18/
Marche à petits pas

“Small steps, slow shuffling”

- resembles parkinsonian, but lacks rigidity and bradykinesia
- length of steps less than foot’s length
- frontal lobes, NPH, multi-infarct dementia

via: Osama SM Amin

19/
Cautious (senile) gait

“velocity slows, steps shorten, and the base widens”

- 'healthy person walks on an icy surface'
- aging vestibular system, impaired proprioceptive by distal neuropathy in the elderly, and impaired vision

via: Global news

20/
Magnetic gait

“inability to lift the feet off the floor”

- NPH

via: Hydrocephalus association

21/
Magnetic gait

“inability to lift the feet off the floor”

doi.org/10.1212/CPJ.00… via: Neurology

22/
Magnetic gait

“inability to lift the feet off the floor”

youtube.com/shorts/Enp5map… via: Dr.Pawan Soni

23/
Functional gait

“recognizing positive clinical features of functional gait disorders”

- complex
- inconsistency
- incongruity

youtube.com/shorts/zJIZtob… via: Pogakula Udaykiran

24/
Astasia

“inability to stand”

- functional?
- everything normal, except for the inability to stand
- freq assoc to abasia

doi.org/10.1002%2Fmdc3… via: Mov Disord Clin Pract

25/

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More from @theneurolander

Aug 23, 2024
Pourfour du Petit Syndrome
The reverse Horner syndrome!

François Pourfour du Petit (1664–1741)
- 1st to describe

#MedTwitter #neurotwitter #EndNeurophobia #tweetorials

1/ Image
Definition

“ipsilateral mydriasis, hyperhidrosis, and eyelid retraction”

2/
Pathophysiology

oculosympathetic chain irritation causing the clinical signs of hyperactivity of the sympathetic pathway

- causes are the same as those for Horner syndrome

3/
Read 12 tweets
Aug 17, 2024
Apraxia!
The disorder of motor cognition

Hugo Karl Liepmann (1863 - 1925)

#MedTwitter #neurotwitter #EndNeurophobia #tweetorials

1/ Image
Definition

“Inability to perform a higher motor task”

It can’t be explained by weakness, sensory loss, or lack understanding

2/
Apraxia assessment

Pantomime
Meaningful hand gestures
Buccofacial apraxia
Meaningless hand gesture
Luria 3-steps task

*Describe the body part and the impaired movement
*Consider mistake, if persist after correction

3/ Image
Read 36 tweets
Jul 28, 2024
House of Words: Aphasias!

Armand Trousseau (1801 – 1867)
French internist

1/ Image
History

Late 18th, Gall
- speech function localized frontal lobes

Dax, 1986
- aphasia & L hemisphere

Broca, 1861
- lesion L inferior frontal convolution

Trousseau, 1862
- coined aphasia term

Wernicke, 1864
- speech comprehension

Lichtheim, 1885
- subcortical aphasia

2/ Image
Definition

“disorder of language, including impairment in ability to produce, understand, and repeat speech, as well as defects in the ability to read and write.”

*deficit affecting only speech is usually dysarthria

3/ Image
Read 25 tweets
Jan 26, 2023
Diencephalon location
- around the 3rd ventricle

The cavity of the diencephalon is ----- the 3rd ventricle
All of the structures of the diencephalon are around the 3rd ventricle, so the cavity of the diencephalon is the 3rd ventricle.

2/
Diencephalon embryology

- prosencephalon

3/ Image
Read 36 tweets
Jan 12, 2023
The Examination in Coma

“the father of modern neurological surgery”

American neurosurgeon Harvey Williams Cushing (1869–1939)

#MedTwitter #neurotwitter #EndNeurophobia #tweetorials

1/ Image
Definition

“a state of unarousable unresponsiveness”

Parts
a. level of consciousness
b. vital signs (BP & breathing pattern)
c. cranial nerves (fundoscopy + vision + brainstem)
d. motor & sensory
e. reflex
f. meningeal signs

2/
Level of consciousness

Normal
Clouding of consciousness
Confusion/delirium
Lethargy
Obtundation
Stupor
Coma

3/ Image
Read 30 tweets
Dec 26, 2022
Drifts!!!

French neurologist Jean Alexandre Barré (1880–1967)

#MedTwitter #neurotwitter #EndNeurophobia #tweetorials

1/
The four types of drift

“pronator, cerebellar, parietal, and functional”

- pronator drift (pyramidal drift) was the 1st to be described
- Dr. Barre was the 1st to report it

2/
Pronator drift (Barre’s sign)

progress from distal to proximal

1st downward arm drift
2nd forearm pronation
3rd flexion of the wrist and elbow

3/
Read 18 tweets

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