14 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
Radial Nerve Wrist ... Radial Nerve Fingers ... Gluteal Nerve Knee ... #MuscleGroups #MSK ... #Orthopedics #Neurology
Positive Varus Stress Test in LCL Injury

Interesting knee injury in a young basketball player who landed
Interesting knee ... complete rupture and ... PhysicalExam #Sports #Orthopedics ... #Knee #lateral ... #msk
Distal Radius Fracture 
Distal radius fracture is the most common orthopedic injury. Here's a quick summary.
•
onto outstretched hand ... variable gross wrist ... lunotriquetral ligament ... reduction using finger ... #MSK
Mallet Finger
Absence of a fracture does NOT exclude Mallet finger, the extension function of the DIP
: Hyperflexion injury ... Discharge with orthpedic ... #Radiology #XRay ... Diagnosis #Management #Hand ... #Orthopedics #MSK
RADIAL HEAD FRACTURE 
Radial head fractures are the most common elbow fracture in adults and are
x-ray review alignment ... II-IV, pending orthopedic ... #Radiology #XRay ... Diagnosis #Management #Orthopedics ... #MSK
Interphalangeal Joint Dislocation
Interphalangeal joint dislocations almost always occur dorsally, look for associated avulsion fractures! Here's a
and PIP joints ... capsule. collateral ligaments ... Hyperextension injury ... Dislocation #IPJoint #Radiology ... #Orthopedics #MSK
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
no longer sitting ... , median nerve injury ... Disposition: Pending orthopedic ... #Carpal #Radiology ... #Sports #MSK
Supracondylar Elbow Fracture
• Most common elbow fracture in children, peak age 5-7 
• When looking at
x-ray review alignment ... brachial artery injury ... II-IV, pending orthopedic ... #Humerus #Radiology ... #MSK
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
• Due to injury ... scapholunate interosseous ligament ... onto outstretched hand ... Scaphoid #Carpal #Radiology ... #Sports #MSK
Lachman Test for ACL Injury

The patient lies supine and with the knee in ~20-30 degrees of
with the knee in ... degrees of flexion, hip ... Anterior #Cruciate #Ligament ... #physicalexam #msk ... #orthopedics #sports