9 results
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
• Due to injury ... onto outstretched hand ... #Radiology #XRay ... #Diagnosis #Management ... #MSK
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
extension • ... #Wrist #Carpal ... #Radiology #XRay ... #Diagnosis #Management ... #MSK
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
Complications are ... flexion and extension ... injuries: Perilunate dislocation ... #XRay #Diagnosis ... #Sports #MSK
Scaphoid Fractures
The scaphoid is the most commonly fractured carpal bone. Remember, if a fracture is suspected
fractures that are ... onto outstretched hand ... Scaphoid #Fracture #Wrist ... #XRay #Diagnosis ... #Sports #MSK
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
spared in this injury ... Carpal Tunnel Syndrome ... Anterior Shoulder Dislocation ... #neurology #sensory ... #motor #arm #physicalexam
Monteggia Fracture 
Fracture of proximal ulnar shaft with radial head dislocation. Remember “MUGR” to recall where
onto outstretched hand ... syndrome, ligamentous injury ... Posterior long arm ... #XRay #Diagnosis ... #Proximal #MSK
Interphalangeal Joint Dislocation
Interphalangeal joint dislocations almost always occur dorsally, look for associated avulsion fractures! Here's a
ulnar displacernent ... Hyperextension injury ... IPJoint #Radiology #XRay ... #Diagnosis #Management ... #MSK
Radial Nerve Anatomy and Function
The Radial nerve is the nerve of elbow, wrist and digital extension.
and digital extension ... the back of the arm ... , forearm and first ... wrist extension ... #neurology #orthopedics
Extensor Carpi Ulnaris (ECU) subluxation 
The Extensor Carpi Ulnaris (ECU), is the must ulnar of the
Extensor Carpi Ulnaris ... Carpi Ulnaris ( ... muscles of the forearm ... #Carpi #Ulnaris ... #msk