31 results
Hand Nerve Injuries - Common Presentations
 • Wrist Drop - Radial Nerve Injury
 • Claw Hand
Presentations • Wrist ... Drop - Radial Nerve ... Injuries #Anatomy #Differential ... #Diagnosis #MSK ... #Orthopedics
RADIAL HEAD FRACTURE 
Radial head fractures are the most common elbow fracture in adults and are
Tenderness to lateral ... II-IV, pending orthopedic ... Radiology #XRay #Diagnosis ... #Management #Orthopedics ... #MSK
Distal Radius Fracture 
Distal radius fracture is the most common orthopedic injury. Here's a quick summary.
•
the most common orthopedic ... variable gross wrist ... carpal tunnel syndrome ... Radiology #XRay #Diagnosis ... #MSK
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
Dislocation On lateral ... Disposition: Pending orthopedic ... Radiology #XRay #Diagnosis ... #Management #Orthopedics ... #Sports #MSK
Posterior Elbow Dislocation
The elbow is the second most commonly dislocated major joint in adults and the
/lateral epicondyle ... > radial head > ... dislocation + radial ... Radiology #XRay #Diagnosis ... #Sports #MSK
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
Nerve Wrist Extension ... C6 Radial Nerve ... #MuscleGroups #MSK ... #Orthopedics #Neurology ... #Diagnosis
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
- C6, C7, C8 Elbow ... Pronation - C7, C8 Wrist ... Wrist drop - Occurs ... Carpal Tunnel Syndrome ... Dermatomes #Myotomes #diagnosis
Spinal Cord Injury by Nerve Root Levels
Spinal Root	Sensory	Motor	Reflex
C4	Acromioclavicular Joint	Respiration	None
C5	Radial Antecubital Fossa	Elbow Flexion	Biceps Reflex
C6	Dorsal Thumb	Wrist Extension	Brachioradialis Reflex
C7	Dorsal
C6 Dorsal Thumb Wrist ... Middle Finger Elbow ... Hamstring Reflex S1 Lateral ... NerveRoots #Levels #differential ... #diagnosis #Neurology
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
duck sign" on lateral ... duck sign" on lateral ... dislocation, distal radius ... Radiology #XRay #Diagnosis ... #Sports #MSK
Supracondylar Elbow Fracture
• Most common elbow fracture in children, peak age 5-7 
• When looking at
capitellum (age 1), radial ... ), compartment syndrome ... II-IV, pending orthopedic ... Radiology #XRay #Diagnosis ... #MSK