19 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
Extension C7 Radial ... Nerve Wrist Extension ... Fingers Abduction T1 Ulnar ... MuscleGroups #MSK #Orthopedics ... #Neurology #Diagnosis
Galeazzi Fracture 
Fracture of distal radial shaft with distal radial-ulnar joint disruption. Remember “MUGR” to recall
shaft with distal radial-ulnar ... shaft with distal radial-ulnar ... onto outstretched hand ... #Radiology #XRay ... #Orthopedics #MSK
Radial Nerve Anatomy and Function
The Radial nerve is the nerve of elbow, wrist and digital extension.
the nerve of elbow ... extension. ... the wrist and elbow ... Nerve #Anatomy #diagnosis ... #neurology #orthopedics
Interphalangeal Joint Dislocation
Interphalangeal joint dislocations almost always occur dorsally, look for associated avulsion fractures! Here's a
ligaments (prevent radial ... and ulnar displacernent ... Dislocation #IPJoint #Radiology ... #XRay #Diagnosis ... #Orthopedics #MSK
Common Hand Fractures on X-Ray
Mallet finger - injury to the lateral extensor slips
Boutonniere deformity - injury
of extensor tendon ... thumb injury to ulnar ... Fractures #XRay #Radiology ... #Wrist #differential ... #diagnosis
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
- C6, C7, C8 Elbow ... Pronation - C7, C8 Wrist ... Abduction - C8-T1 (ulnar ... Adduction - C7-T1 (ulnar ... Dermatomes #Myotomes #diagnosis
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
extension • ... Disposition: Pending orthopedic ... #Carpal #Radiology ... #XRay #Diagnosis ... #Management #Orthopedics
Monteggia Fracture 
Fracture of proximal ulnar shaft with radial head dislocation. Remember “MUGR” to recall where
shaft with radial ... onto outstretched hand ... Exam: swollen elbow ... #Radiology #XRay ... #Diagnosis #Management
Maudsley's Test for Lateral Epicondylitis ("Tennis Elbow")

With the wrist prone, resist extension of the 3rd digit,
") With the wrist ... digitorum muscle and ... tendon. ... Video by Danielle ... #msk #sports #orthopedics
Mallet Finger
Absence of a fracture does NOT exclude Mallet finger, the extension function of the DIP
tendon distal to ... tender DIP joint ... Mallet #Finger #Radiology ... #XRay #Diagnosis ... #Management #Hand