9 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
- C6, C7, C8 Elbow ... aracteristic "claw hand ... Carpal Tunnel Syndrome ... Dermatomes #Myotomes #diagnosis ... sensory #motor #arm
Shoulder Impingement Syndrome (SIS): Signs and Symptoms

Repetitive Overhead Activity, Scapular Dyskinesis -> Scapulohumeral mechanics become altered
Signs and Symptoms ... + Painful arc ... test - Pain at 60 ... #SIS #diagnosis ... #msk #pathophysiology
Supracondylar Elbow Fracture
• Most common elbow fracture in children, peak age 5-7 
• When looking at
onto outstretched hand ... anterior interosseous nerve ... ), compartment syndrome ... Posterior long arm ... #Orthopedics #MSK
Hearing Loss - Differential Diagnosis Framework

Hearing Loss Types:
• Conductive
• Sensorineural
• Mixed
Presbycusis is the most common type
- Differential Diagnosis ... The evaluation should ... audiometry • Patients should ... II ○ Susac’s syndrome ... Noise trauma ○ MS
Myasthenia Gravis Overview

Myasthenia Gravis is an autoimmune disorder of the postsynaptic neuromuscular junction.  Ab to
proximal weakness, arms ... /Edrophonium test ... - Cogan sign ... - Peek sign 2. ... - Repetitive nerve
The Neurological Evaluation of a Comatose Patient

Definition:
 • Coma: a state of unresponsiveness; the absence of
Differential Diagnosis ... • Locked-in syndrome ... threat Cranial Nerves ... • Examine for signs ... flexed at the elbow
Scoliosis: Pathogenesis and clinical findings (Cobb Angle > 10 Degrees)

 • Incr Axial rotation of thoracic
Iliac Crests, Shoulders ... /or Arm Length Discrepancy ... -> Spinal nerve ... pathophysiology #msk ... #diagnosis #signs
Transverse Myelitis Overview

Focal inflammatory disorder of the spinal cord resulting in rapid onset of weakness, sensory
extensors of the arms ... • Bilateral signs ... negative, MOG-IgG test ... should be ordered ... /or optic nerve
Extensor Carpi Ulnaris (ECU) subluxation 
The Extensor Carpi Ulnaris (ECU), is the must ulnar of the
Extensor Carpi Ulnaris ... extends from the elbow ... ECU Subluxation diagnosed ... #physicalexam #video ... #msk