8 results
Common Hand Fractures on X-Ray
Mallet finger - injury to the lateral extensor slips
Boutonniere deformity - injury
finger - injury ... to the lateral extensor ... to ulnar collateral ... Terry thomas sign ... #XRay #Radiology
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
"pooping duck sign ... "pooping duck sign ... distal to distal ulna ... wrist flexion and extension ... distal radius or ulna
Extensor Carpi Ulnaris (ECU) Synergy Test for ECU Tendinitis

With the patient's hand supinated, the examiner grasps
Extensor Carpi Ulnaris ... thumb and middle finger ... along the dorsal ulnar ... #extensor #carpi ... #msk #orthopedics
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 ... pain with wrist extension ... #Radiology #XRay
Interphalangeal Joint Dislocation
Interphalangeal joint dislocations almost always occur dorsally, look for associated avulsion fractures! Here's a
prevent radial and ulnar ... Hyperextension injury ... tendon), mallet finger ... Discharge with orthopedic ... IPJoint #Radiology #XRay
Extensor Carpi Ulnaris (ECU) subluxation 
The Extensor Carpi Ulnaris (ECU), is the must ulnar of the
Extensor Carpi Ulnaris ... Carpi Ulnaris (ECU ... extends from the elbow ... little, or pinky, finger ... #Carpi #Ulnaris
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
dorsally and no longer ... pain with wrist extension ... fracture (scaphoid ... , median nerve injury ... #Radiology #XRay
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
- C6, C7, C8 Elbow ... , C8 (radial) Finger ... spared in this injury ... Carpal Tunnel Syndrome ... sensory #motor #arm #physicalexam