32 results
Upper Extremity Nerve Pathologies 

 • Axillary Nerves
 • Musculocutaneous Nerve
 • Radial Nerve
 • Median
Upper Extremity Nerve ... • Radial Nerve ... • Median Nerve ... • Ulnar Nerve ... #Pathologies #differential
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 ... Shoulder Adduction ... Thoracodorsal Nerve ... Elbow Extension C7 Radial ... C6 Radial Nerve
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
capitate ("apple") should ... tea cup") which should ... with the distal radius ... fracture, median nerve ... #Orthopedics #Sports
Hand Nerve Injuries - Common Presentations
 • Wrist Drop - Radial Nerve Injury
 • Claw Hand
Hand Nerve Injuries ... • Wrist Drop - Radial ... Nerve Injury • ... Claw Hand - Ulnar Nerve ... Injuries #Anatomy #Differential
Left Wrist Drop - Radial Nerve Palsy on Physical Examination

Left hand drop due to compression of
Left Wrist Drop - Radial ... Nerve Palsy on ... nerve in its path ... #Nerve #Palsy # ... orthopedics #msk #sports
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Motor Function Shoulder ... nerve in the radial ... in the median nerve ... Anterior Shoulder ... cause axillary nerve
Anterior Shoulder Dislocation - ED Management
The shoulder is the most commonly dislocated major joint, 95% of
Anterior Shoulder ... Management The shoulder ... joint, 95% of shoulder ... injuries: Axillary nerve ... #Orthopedics #Sports
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
all carpal bones should ... all carpal bones should ... injuries: distal radius ... #Orthopedics #Sports
TISSUE APPEARANCES ON 
MUSCULOSKELETAL ULTRASOUND 

Bone:
 
Bone is represented as a very bright structure and appears
Nerve: Ultrasound ... demonstrates nerves ... of hypoechoic spots ... with the median nerve ... interrogation as it should
Chronic Vision Loss by Anatomic Location - Differential Diagnosis Algorithm
Cornea:
 • Keratoconus
 • Stromal Scaring
 •
Anatomic Location - Differential ... - Cotton wool spots ... conditions Optic Nerve ... vision: • Optic Nerve ... Chronic #VisionLoss #Differential