11 results
Radial Nerve Anatomy and Function
The Radial nerve is the nerve of elbow, wrist and digital extension.
elbow, wrist and ... back of the arm, forearm ... injury ... injury ... drop: ECRB and
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
associated injuries: Carpal ... fracture, median nerve ... injury • ED ... #Carpal #Radiology ... Orthopedics #Sports #MSK
Distal Radius Fracture 
Distal radius fracture is the most common orthopedic injury. Here's a quick summary.
•
variable gross wrist ... fracture, median nerve ... injury, acute carpal ... Radius #Fracture #Forearm ... #Orthopedics #MSK
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
- C6, C7, C8 Elbow ... Pronation - C7, C8 Wrist ... drop - Occurs after ... spared in this injury ... Carpal Tunnel Syndrome
Median Nerve Tension Test (Upper-Limb Neurodynamic Tests, ULNT2)

To assess for Median Nerve Peripheral Neuropathy

Elbow extension →
Neuropathy Elbow ... external rotation → forearm ... supination → wrist ... ULTT2 #clinical #video ... physicalexam #sports #msk
Median Nerve Tension Test (Upper-Limb Neurodynamic Tests, ULNT1)

To assess for Median Nerve Peripheral Neuropathy

Shoulder abduction →
Shoulder abduction → forearm ... supination → wrist ... external rotation → elbow ... ULTT1 #clinical #video ... physicalexam #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
Monteggia Fracture 
Fracture of proximal ulnar shaft with radial head dislocation. Remember “MUGR” to recall where
Exam: swollen elbow ... posterior interosseous nerve ... syndrome, ligamentous injury ... #Ulnar #Radiology ... Orthopedics #Proximal #MSK