17 results
Radial Nerve Anatomy and Function
The Radial nerve is the nerve of elbow, wrist and digital extension.
Radial Nerve Anatomy ... and digital extension ... drop: ECRB and ECU ... extension) but ... ECRL) ECRB, Sup, ECU
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
extension • ... associated injuries: Carpal ... fracture, median nerve ... injury • ED Management ... #Carpal #Radiology
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Pronation - C7, C8 Wrist ... C7 (median) • Extension ... Horner Syndrome Wrist ... nerve in the radial ... Carpal Tunnel Syndrome
Midcarpal Instability (MCI) of the Wrist

Intrinsic Midcarpal Instability
Usually affects young, hypermobile patients.
It is due to progressive
Instability (MCI) of the Wrist ... The proximal carpal ... extensors (ECU, ... ECRB) The distal carpal ... orthopedics #clinical #video
Synkinetic Wrist Extension Maneuver demonstrating Radial Nerve Palsy as cause for Wrist Drop

Up up, down down.
Extension Maneuver ... demonstrating Radial ... Nerve Palsy as ... #Radial #Nerve ... Drop #clinical #video
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 ... injury) • ED Management ... XRay #Diagnosis #Management
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
ulna, pain with wrist ... flexion and extension ... dislocation, distal radius ... fractures • ED Management ... Triquetrum #Fracture #Wrist
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
box, pain with wrist ... extension • Possible ... injuries: distal radius ... #TerryThomas #Wrist ... XRay #Diagnosis #Management
Extensor Carpi Ulnaris (ECU) Synergy Test for ECU Tendinitis

With the patient's hand supinated, the examiner grasps
Extensor Carpi Ulnaris ... The patient radially ... aspect of the wrist ... #extensor #carpi ... Tendinitis #clinical #video
Examination for ECU Tendinitis 

ECU tenosynovitis is the second most common type of tenosynovitis around the
Examination for ECU ... Tendinitis ECU ... tenosynovitis around the wrist ... #extensor #carpi ... ulnaris #clinical #video