9 results
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
Spinal Cord Injury ... C6 Dorsal Thumb Wrist ... Abdominal Reflex L2 Anterior ... Hamstring Reflex S1 Lateral ... differential #diagnosis #Neurology
Anterior Shoulder Dislocation - ED Management
The shoulder is the most commonly dislocated major joint, 95% of
Anterior Shoulder ... Axillary nerve injury ... #Radiology #XRay ... #Orthopedics #Sports ... #MSK
RADIAL HEAD FRACTURE 
Radial head fractures are the most common elbow fracture in adults and are
lines), fat pads (anterior ... identified but anterior ... Tenderness to lateral ... #Radiology #XRay ... #Orthopedics #MSK
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Motor Function Shoulder ... - C6, C7, C8 Elbow ... spared in this injury ... Anterior Shoulder ... Myotomes #diagnosis #neurology
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
Dislocation On lateral ... , median nerve injury ... #Carpal #Radiology ... #XRay #Diagnosis ... #MSK
Posterior Elbow Dislocation
The elbow is the second most commonly dislocated major joint in adults and the
Fractures (medial/lateral ... , neuropraxia (anterior ... #XRay #Diagnosis ... #Orthopedics #Sports ... #MSK
Pediatric Elbow Injuries - Elbow Xrays

Check the fat pads on the lateral projection:
1. A displaced anterior
Xrays Check ... a significant injury ... of the humerus should ... #Injuries #Xrays ... #Radiology #peds
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
• Due to injury ... Scaphoid #Carpal #Radiology ... #XRay #Diagnosis ... #Orthopedics #Sports ... #MSK
Authors: Mark M. Ramzy, DO, EMT-P (@MarkRamzyDO, EM Resident Physician, Drexel University, Department of Emergency Medicine)
over the left anterior ... Due to their short ... over the left anterior ... secretions and should ... #Radiology #CTChest