10 results
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
onto outstretched hand ... dorsum of the hand ... distal to distal ulna ... MH/CCF/CWRU EM ... Radiology #XRay #Diagnosis
Monteggia Fracture 
Fracture of proximal ulnar shaft with radial head dislocation. Remember “MUGR” to recall where
ulnar shaft with ... Peak age 4-10 • Ulna ... posterior interosseous nerve ... MH/CCF/CWRU EM ... Radiology #XRay #Diagnosis
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Upper Extremity ... Abduction - C8-T1 (ulnar ... aracteristic "claw hand ... Carpal Tunnel Syndrome ... Dermatomes #Myotomes #diagnosis
Boxer's Fracture - ED Management
Be sure to assess for wounds in patients with fractures of the
hematoma block or ulnar ... nerve block), immobilize ... object) • Splint: Ulnar ... MH/CCF/CWRU EM ... Radiology #XRay #Diagnosis
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
onto outstretched hand ... fracture (scaphoid ... , median nerve injury ... MH/CCF/CWRU EM ... Radiology #XRay #Diagnosis
Distal Radius Fracture 
Distal radius fracture is the most common orthopedic injury. Here's a quick summary.
•
onto outstretched hand ... , median nerve injury ... , acute carpal tunnel ... MH/CCF/CWRU EM ... Radiology #XRay #Diagnosis
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Lower Extremity ... damage to peroneal nerve ... such as fibular fracture ... Narrowing of spinal canal ... Dermatomes #Myotomes #diagnosis
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
Leg Pain - Differential ... Diagnosis Framework ... Leg Pain: • Fracture ... #diagnosis #lower ... #extremity #msk
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
compression of nerve ... constipation Differential ... Diagnosis: • ... distinguishing feature ... #diagnosis #causes
Ptosis - Differential Diagnosis Framework

Ptosis (Greek- to fall) Drooping of the upper eyelid that usually results
Ptosis - Differential ... junction, cranial nerve ... eyelid: • Third nerve ... levator to the tarsal ... orbital rooftop fracture