14 results
Radial Nerve Anatomy and Function
The Radial nerve is the nerve of elbow, wrist and digital extension.
and digital extension ... drop: ECRB and ECU ... extension) but ... ECRL) ECRB, Sup, ECU ... #diagnosis #neurology
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
extension • ... fracture, median nerve ... #Carpal #Radiology ... #XRay #Diagnosis ... #Sports #MSK
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
Complications are ... flexion and extension ... dislocation, distal radius ... #XRay #Diagnosis ... #Sports #MSK
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
musculocutaneous) • Extension ... C7 (median) • Extension ... C8 (median) • Extension ... nerve in the radial ... sensory #motor #arm
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
extension • Possible ... injuries: distal radius ... #Radiology #XRay ... #Diagnosis #Management ... #Orthopedics #Sports
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 ... Distal #Radiology #XRay ... #Diagnosis #Management
Extensor Carpi Ulnaris (ECU) Synergy Test for ECU Tendinitis

With the patient's hand supinated, the examiner grasps
Extensor Carpi Ulnaris ... tendon with the ... The patient radially ... aspect of the wrist ... #extensor #carpi
Interphalangeal Joint Dislocation
Interphalangeal joint dislocations almost always occur dorsally, look for associated avulsion fractures! Here's a
ligaments (prevent radial ... phalanx to enable extension ... phalanx to enable extension ... IPJoint #Radiology #XRay ... #Diagnosis #Management
Scaphoid Fractures
The scaphoid is the most commonly fractured carpal bone. Remember, if a fracture is suspected
fractures that are ... Scaphoid #Fracture #Wrist ... #XRay #Diagnosis ... #Management #Orthopedics ... #Sports #MSK
Posterior Elbow Dislocation
The elbow is the second most commonly dislocated major joint in adults and the
anterior interosseous nerve ... Posterior long arm ... Posterior #Radiology #XRay ... #Diagnosis #Management ... #Orthopedics #Sports