22 results
Interphalangeal Joint Dislocation
Interphalangeal joint dislocations almost always occur dorsally, look for associated avulsion fractures! Here's a
and PIP joints ... ulnar displacernent ... Hyperextension injury ... #IPJoint #Radiology ... #XRay #Diagnosis
Common Hand Fractures on X-Ray
Mallet finger - injury to the lateral extensor slips
Boutonniere deformity - injury
of extensor tendon ... to ulnar collateral ... Fractures #XRay #Radiology ... #Wrist #differential ... #diagnosis
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 ... Scaphoid #Carpal #Radiology ... #Orthopedics #Sports
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
On lateral wrist ... , median nerve injury ... #Radiology #XRay ... #Diagnosis #Management ... #Orthopedics #Sports
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
, pain with wrist ... injuries: Perilunate dislocation ... #Carpal #Radiology ... #XRay #Diagnosis ... #Orthopedics #Sports
Positive Varus Stress Test in LCL Injury

Interesting knee injury in a young basketball player who landed
An MRI confirmed ... complete rupture and ... #Positive #Clinical ... #Video #PhysicalExam ... #Sports #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 ... Anterior Shoulder Dislocation ... Dermatomes #Myotomes #diagnosis
Extensor Carpi Ulnaris (ECU) subluxation 
The Extensor Carpi Ulnaris (ECU), is the must ulnar of the
the elbow to the hand ... ECU Subluxation diagnosed ... , MRI or ultrasound ... #subluxation #clinical ... #physicalexam #video
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
Median Nerve Injury and Anhidrosis
Note dry skin that precisely matches a median nerve distribution (spares ulnar
distribution (spares ... ulnar innervated ... wounds on volar wrist ... nerve or any tendons ... #Clinical #Photo