12 results
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
"pooping duck sign ... distal to distal ulna ... distal radius or ulna ... #Radiology #XRay ... Orthopedics #Sports #MSK
Monteggia Fracture 
Fracture of proximal ulnar shaft with radial head dislocation. Remember “MUGR” to recall where
Peak age 4-10 • Ulna ... Exam: swollen elbow ... posterior interosseous nerve ... syndrome, ligamentous injury ... #Radiology #XRay
Tinel's Test of the Ulnar Nerve

Perform a Tinel's at the cubital tunnel by percussing the ulnar
nerve. ... #Tinels #Test #Sign ... #Ulnar #Nerve # ... elbow #PhysicalExam ... video #sports #msk
Froment's Sign - Ulnar Nerve Injury

Patients with compromise of the ulnar nerve will not be able
Froment's Sign - ... Ulnar Nerve Injury ... #Ulnar #Nerve # ... Injury #Hand #PhysicalExam ... video #sports #msk
Supracondylar Elbow Fracture
• Most common elbow fracture in children, peak age 5-7 
• When looking at
anterior sail sign ... anterior interosseous nerve ... brachial artery injury ... #Humerus #Radiology ... #Orthopedics #MSK
Posterior Elbow Dislocation
The elbow is the second most commonly dislocated major joint in adults and the
anterior interosseous nerve ... can't make A-OK sign ... ), ligamentous injury ... Dislocation #Posterior #Radiology ... Orthopedics #Sports #MSK
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
- C6, C7, C8 Elbow ... Abduction - C8-T1 (ulnar ... spared in this injury ... Carpal Tunnel Syndrome ... sensory #motor #arm #physicalexam
RADIAL HEAD FRACTURE 
Radial head fractures are the most common elbow fracture in adults and are
anterior sail sign ... fracture • ED Management ... #Radiology #XRay ... #Diagnosis #Management ... #Orthopedics #MSK
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
"Terry Thomas" sign ... • Due to injury ... ("Terry Thomas sign ... #Radiology #XRay ... Orthopedics #Sports #MSK
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
fracture, median nerve ... injury • ED ... Management: Pain ... #Radiology #XRay ... Orthopedics #Sports #MSK