22 results
Common Hand Fractures on X-Ray
Mallet finger - injury to the lateral extensor slips
Boutonniere deformity - injury
to the lateral ... of extensor tendon ... to ulnar collateral ... #Wrist #differential ... #diagnosis
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
duck sign" on lateral ... , pain with wrist ... #Carpal #Radiology ... #XRay #Diagnosis ... #Orthopedics #Sports
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
Dislocation On lateral ... , median nerve injury ... #Carpal #Radiology ... #XRay #Diagnosis ... #Orthopedics #Sports
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
Thomas" sign to diagnosis ... • Due to injury ... onto outstretched hand ... #Radiology #XRay ... #Orthopedics #Sports
Interphalangeal Joint Dislocation
Interphalangeal joint dislocations almost always occur dorsally, look for associated avulsion fractures! Here's a
ulnar displacernent ... degrees of flexion; lateral ... Hyperextension injury ... Dislocation #IPJoint #Radiology ... #XRay #Diagnosis
Positive Varus Stress Test in LCL Injury

Interesting knee injury in a young basketball player who landed
rupture of the lateral ... complete rupture and ... #Positive #Clinical ... #Video #PhysicalExam ... #Sports #Orthopedics
Extensor Carpi Ulnaris (ECU) subluxation 
The Extensor Carpi Ulnaris (ECU), is the must ulnar of the
the elbow to the hand ... ECU Subluxation diagnosed ... relevant body parts ... #subluxation #clinical ... #physicalexam #video
Ulnar Compression Test - Ulnar Tunnel Syndrome

The ulnar compression test evaluates for ulnar tunnel syndrome.
Provide direct
tunnel or Guyon's canal ... Tunnel #Syndrome #wrist ... #hand #PhysicalExam ... #clinical #video ... #sports #msk #orthopedics
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Pronation - C7, C8 Wrist ... Abduction - C8-T1 (ulnar ... spared in this injury ... Carpal Tunnel Syndrome ... Dermatomes #Myotomes #diagnosis
Mallet Finger
Absence of a fracture does NOT exclude Mallet finger, the extension function of the DIP
joint needs to be clinically ... : Hyperflexion injury ... tender DIP joint ... Mallet #Finger #Radiology ... #XRay #Diagnosis