13 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Upper Extremity Dermatomes ... - C6, C7, C8 Elbow ... " ± Horner Syndrome ... Myotomes #diagnosis #neurology ... sensory #motor #arm #physicalexam
Anterior Interosseous Peripheral Nerve Injury 

Manifested as the inability to make the OK sign.

by Dr. Boby
Interosseous Peripheral Nerve ... to make the OK sign ... #Interosseous #Nerve ... #physicalexam # ... #orthopedics #Hand
Supracondylar Elbow Fracture
• Most common elbow fracture in children, peak age 5-7 
• When looking at
anterior sail sign ... anterior interosseous nerve ... can't make A-OK sign ... ), compartment syndrome ... II-IV, pending orthopedic
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Lower Extremity Dermatomes ... • Cauda Equina Syndrome ... damage to peroneal nerve ... Myotomes #diagnosis #neurology ... sensory #motor #leg #physicalexam
Froment’s Test for Ulnar Nerve Palsy

This tests for pinch grip weakness caused by ulnar nerve palsy,
Test for Ulnar Nerve ... clinical #video #neurology ... #physicalexam # ... msk #orthopedics ... #sports #hand
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
Leg Pain - Differential ... epiphysis • Bursitis ... Hair loss- feet and ... #Leg #pain #differential ... extremity #msk #physicalexam
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
Weakness - Differential ... • Acute stroke syndromes ... Lack of UMN/LMN signs ... #Weakness #Differential ... #Diagnosis #neurology
Tinel's Test of the Ulnar Nerve

Perform a Tinel's at the cubital tunnel by percussing the ulnar
Test of the Ulnar Nerve ... pain, numbness, and ... #Tinels #Test #Sign ... elbow #PhysicalExam ... #sports #msk #orthopedics
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
compression of nerve ... constipation Differential ... region (S2-S4 dermatomes ... #differential # ... diagnosis #causes #neurology
Myasthenia Gravis Overview

Myasthenia Gravis is an autoimmune disorder of the postsynaptic neuromuscular junction.  Ab to
life-threatening Differential ... test - Cogan sign ... - Peek sign ... - Repetitive nerve ... diagnosis #management #neurology