55 results
Mytomes - Segmental Innervation of Muscles
Shoulder	Abduction	C5	Axillary Nerve
Shoulder	Adduction	C6-C8	Thoracodorsal Nerve
Elbow	Flexion	C5	Musculocutaneous Nerve
Elbow	Extension	C7	Radial Nerve
Wrist	Extension	C6	Radial Nerve
Fingers	Flexion	C8	Median Nerve
Fingers	Abduction	T1	Ulnar Nerve
Hip	Flexion	L2	Nerve to Psoas
Hip	Extension	S1	Inferior Gluteal
Innervation of Muscles Shoulder ... Nerve Shoulder ... Adduction C6-C8 ... #MuscleGroups #MSK ... #Orthopedics #Neurology
Chronic Shoulder Pain - Differential Diagnosis Algorithm
4 tests for the AC joint:
1. Direct palpation
2. Cross-arm shoulder
Chronic Shoulder ... Pain - Differential ... abduction 3. ... #Pain #Differential ... Diagnosis #Algorithm #MSK
Shoulder Impingement Syndrome (SIS): Signs and Symptoms

Repetitive Overhead Activity, Scapular Dyskinesis -> Scapulohumeral mechanics become altered
Syndrome (SIS): ... Impingement Syndrome ... abduction + Neer's ... signs #symptoms #msk ... #pathophysiology
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Motor Function Shoulder ... hand" ± Horner Syndrome ... Carpal Tunnel Syndrome ... Anterior Shoulder ... Myotomes #diagnosis #neurology
Carpal Tunnel Syndrome: Pathogenesis and clinical findings
 • Dysthesias - Tingling, burning, or painful sensation at
Carpal Tunnel Syndrome ... • Weak thumb abduction ... #CarpalTunnel #Syndrome ... #pathophysiology ... #msk #overuse
Anterior Shoulder Dislocation: Pathogenesis, clinical, and radiographic findings

Trauma, Fall on, outstretched arm, Overhead throwing => Abduction
Anterior Shoulder ... Overhead throwing => Abduction ... rotation of the shoulder ... signs #symptoms #msk ... #orthopedics #pathophysiology
Causes of Hypokalemia - Differential Diagnosis Algorithm
Increased Loss 
 - Increased GI Loss
 - Increased Urinary
Hypokalemia - Differential ... Increased Cell Production ... - Refeeding Syndrome ... #Hypokalemia #Differential ... potassium #low #pathophysiology
Acute Spinal Cord Injuries: Pathogenesis and clinical findings
 • Anterior Cord Syndrome -> Anterior spinal artery
Anterior Cord Syndrome ... • Central Cord Syndrome ... #diagnosis #pathophysiology ... signs #symptoms #msk ... #orthopedics #neurology
Anticonvulsants as Mood Stabilizers: Mechanism and Side-effect
Examples: Valproate, Carbamazepine, Lamotrigine
 • Mild anticholinergic effect -> Drowsiness
constipation • Allergic reaction ... mediated cytotoxic reaction ... Stevens-Johnson Syndrome ... , asthenia • Neurologic ... #SideEffects #Pathophysiology
Joint Disorders - Differential Diagnosis Algorithm
Monoarthritis
 • Septic
 • Crystalline
     - Gout
Joint Disorders - Differential ... arthritis - (Reiter’s syndrome ... Erythematosus (SLE), should ... Joint #Disorders #msk ... #Differential #