11 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
Elbow Flexion ... C7 Radial Nerve ... Nerve Fingers ... #MuscleGroups #MSK ... #Orthopedics #Neurology
Distal Radius Fracture 
Distal radius fracture is the most common orthopedic injury. Here's a quick summary.
•
fracture, median nerve ... reduction using finger ... Sugar tong • Ortho ... MH/CCF/CWRU EM ... #MSK
RADIAL HEAD FRACTURE 
Radial head fractures are the most common elbow fracture in adults and are
Splint: Sling • Ortho ... Type I, DC with ortho ... II-IV, pending orthopedic ... MH/CCF/CWRU EM ... #MSK
Posterior Elbow Dislocation
The elbow is the second most commonly dislocated major joint in adults and the
anterior interosseous nerve ... Posterior long arm • Ortho ... Simple, DC with ortho ... MH/CCF/CWRU EM ... #Sports #MSK
Supracondylar Elbow Fracture
• Most common elbow fracture in children, peak age 5-7 
• When looking at
capitellum (age 1), radial ... anterior interosseous nerve ... Type l, DC with ortho ... MH/CCF/CWRU EM ... #MSK
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
dorsally and no longer ... fracture, median nerve ... Sugar tong • Ortho ... MH/CCF/CWRU EM ... #Sports #MSK
Mallet Finger
Absence of a fracture does NOT exclude Mallet finger, the extension function of the DIP
caused by disruption ... Hyperflexion injury with axial ... PIP joint • Ortho ... MH/CCF/CWRU EM ... #MSK
Monteggia Fracture 
Fracture of proximal ulnar shaft with radial head dislocation. Remember “MUGR” to recall where
Exam: swollen elbow ... posterior interosseous nerve ... I or Ill) • Ortho ... MH/CCF/CWRU EM ... #Proximal #MSK
Interphalangeal Joint Dislocation
Interphalangeal joint dislocations almost always occur dorsally, look for associated avulsion fractures! Here's a
ligaments (prevent radial ... tendon), mallet finger ... splint • Ortho ... MH/CCF/CWRU EM ... #MSK
Hearing Loss - Differential Diagnosis Framework

Hearing Loss Types:
• Conductive
• Sensorineural
• Mixed
Presbycusis is the most common type
Hearing Loss - Differential ... include a: • Neurologic ... signals in the inner ... cause unknown) ... Noise trauma ○ MS