130 results
Radial Nerve Anatomy and Function
The Radial nerve is the nerve of elbow, wrist and digital extension.
Radial Nerve Anatomy ... of elbow, wrist ... space and the wrist ... and elbow joints ... deviated wrist
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
Elbow Flexion ... C7 Radial Nerve ... Wrist Extension ... C6 Radial Nerve ... #MuscleGroups #MSK
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
with the distal radius ... associated injuries: Carpal ... fracture, median nerve ... #Carpal #Radiology ... Orthopedics #Sports #MSK
Left Wrist Drop - Radial Nerve Palsy on Physical Examination

Left hand drop due to compression of
Left Wrist Drop ... - Radial Nerve Palsy ... trauma_modern #Wrist ... #clinical #video ... #orthopedics #msk
Hand Nerve Injuries - Common Presentations
 • Wrist Drop - Radial Nerve Injury
 • Claw Hand
Hand Nerve Injuries ... Presentations • Wrist ... Drop - Radial Nerve ... Claw Hand - Ulnar Nerve ... Differential #Diagnosis #MSK
Amsterdam Wrist Rules
Rules that dictate which patients require imaging based on the likelihood of wrist fracture
trauma DISTAL RADIUS ... Painful balottement test ... , Painful radial ... #Rules radius # ... fracture #radiology #msk
Phalen's Test for Carpal Tunnel Syndrome

Phalen's test evaluates for carpal tunnel syndrome. 
Fully flex wrists and
Fully flex wrists ... Video via @open_michigan ... #Syndrome #Wrist ... PhysicalExam #clinical #video ... #sports #msk #orthopedics
Inverted Supinator Test

Useful for identifying a lesion at the C5-C6 spinal cord level.  Tapping the
Inverted Supinator Test ... normally elicits elbow ... Video by Mujtaba ... Inverted #Supinator #Test ... #orthopedics #msk
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
- C6, C7, C8 Elbow ... Pronation - C7, C8 Wrist ... Horner Syndrome Wrist ... nerve in the radial ... Carpal Tunnel Syndrome
Phalen's Test for Carpal Tunnel Syndrome

Phalen's test evaluates for carpal tunnel syndrome. 
Fully flex wrists and
Carpal Tunnel Syndrome ... Fully flex wrists ... #Syndrome #Wrist ... PhysicalExam #clinical #video ... #sports #msk #orthopedics