15 results
Radial Nerve Anatomy and Function
The Radial nerve is the nerve of elbow, wrist and digital extension.
Radial Nerve Anatomy ... the back of the arm ... • Thus a PIN palsy ... #Nerve #Anatomy ... #diagnosis #neurology
Distal Radius Fracture 
Distal radius fracture is the most common orthopedic injury. Here's a quick summary.
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Distal radius ... fracture, median nerve ... injury, acute carpal ... Colles #Distal #Radiology ... #XRay #Diagnosis
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Conditions Erb's Palsy ... nerve in the radial ... Carpal Tunnel Syndrome ... Dermatomes #Myotomes #diagnosis ... sensory #motor #arm
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
associated injuries: Carpal ... fracture, median nerve ... Dislocation #Wrist #Carpal ... #Radiology #XRay ... #Diagnosis #Management
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
commonly fractured carpal ... Complications are ... dislocation, distal radius ... #Radiology #XRay ... #Diagnosis #Management
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
Thomas" sign to diagnosis ... Tenderness to anatomic ... injuries: distal radius ... #Radiology #XRay ... #Diagnosis #Management
Scaphoid Fractures
The scaphoid is the most commonly fractured carpal bone. Remember, if a fracture is suspected
tenderness to the anatomic ... fractures that are ... Tenderness to anatomic ... #Radiology #XRay ... #Diagnosis #Management
Malignant Bone Tumors: Pathogenesis of X-ray appearance

 • Metastatic bone tumors (aka. cancerous cells from systemic
Pathogenesis of X-ray ... often "radio-dense ... often "radio-lucent ... BoneTumors #Malignant #Radiology ... #Diagnosis #XRay
Posterior Elbow Dislocation
The elbow is the second most commonly dislocated major joint in adults and the
Named based on anatomic ... anterior interosseous nerve ... Posterior long arm ... Dislocation #Posterior #Radiology ... #XRay #Diagnosis
Rheumatoid arthritis (RA): Pathogenesis and Joint diseases features
 • RA affects 1% of population, women >
Stimulation of nerve ... Swelling notable on Xray ... boggy" joints, esp carpal ... drift of fingers, radial ... signs #symptoms #diagnosis