12 results
Rock Paper Scissors - Assessment of Nerve Damage in Upper Limb Injuries
Rock - Median Nerve
 •
• Extension of wrist ... Small muscles of hand ... OK Sign - AIN (Anterior ... joint & flexion ... #Injury #UpperExtremities
Anterior Shoulder Dislocation - ED Management
The shoulder is the most commonly dislocated major joint, 95% of
dislocated major joint ... Most common major joint ... injuries: Axillary nerve ... injury (40%, loss ... Orthopedics #Sports #MSK
Sacroiliac Distraction Test

The examiner applies downward and lateral pressure to the bilateral ASIS , the effect
applies downward and ... distraction force to the anterior ... injury dysfunction ... #physicalexam #hip ... #msk #sports #orthopedics
Spinal Cord Injury by Nerve Root Levels
Spinal Root	Sensory	Motor	Reflex
C4	Acromioclavicular Joint	Respiration	None
C5	Radial Antecubital Fossa	Elbow Flexion	Biceps Reflex
C6	Dorsal Thumb	Wrist Extension	Brachioradialis Reflex
C7	Dorsal
by Nerve Root Levels ... Acromioclavicular Joint ... C6 Dorsal Thumb Wrist ... Abdominal Reflex L2 Anterior ... Medial Thigh Hip
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
Leg Pain - Differential ... Herpes zoster - HIV ... Repetitive strain injury ... Trauma • Crush injury ... lower #extremity #msk
Approach to Joint Pain

History:
Is the pain from:
	• Joint
	• Adjacent bursa
	• Tendon
	• Ligament
	• Bone
	• Muscle
	• Referred from
visceral organ or nerve ... present both at rest ... e.g., congenital hip ... #Pain #MSK #rheumatology ... approach #workup #differential
Posterior Elbow Dislocation
The elbow is the second most commonly dislocated major joint in adults and the
dislocated major joint ... onto outstretched hand ... , neuropraxia (anterior ... interosseous nerve ... Orthopedics #Sports #MSK
Meralgia paresthetica: Pathogenesis and Clinical Findings
Compression/injury of Lateral Femoral Cutaneous Nerve (LFCN) -> Meralgia paresthetica
 •
Findings Compression/injury ... Straight Leg Raise Test ... ligament (near anterior ... MeralgiaParesthetica #MSK ... pathophysiology #differential
Orthopedic Emergencies
Compartment Syndrome
 • An increase in compartment pressure to the point where tissue perfusion is
pressure to the point ... nerve damage in ... peripheral circulation ... hip fractures in ... after an acute injury
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
- Differential ... peripheral nerves ... vesicular eruption - Joints ... retinopathy Lab Tests ... Cryoglobulins • HIV