11 results
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 ... associated injuries: distal ... • ED Management ... #Sports #MSK
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
dorsally and no longer ... , median nerve injury ... #Wrist #Carpal ... Radiology #XRay #Diagnosis ... #Sports #MSK
Distal Radius Fracture 
Distal radius fracture is the most common orthopedic injury. Here's a quick summary.
•
, acute carpal tunnel ... ) • ED Management ... reduction using finger ... Radiology #XRay #Diagnosis ... #MSK
Interphalangeal Joint Dislocation
Interphalangeal joint dislocations almost always occur dorsally, look for associated avulsion fractures! Here's a
to the dorsal distal ... to the palmar distal ... Hyperextension injury ... Radiology #XRay #Diagnosis ... #Orthopedics #MSK
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
injuries: Perilunate dislocation ... fractures • ED Management ... Radiology #XRay #Diagnosis ... #Management #Orthopedics ... #Sports #MSK
Scaphoid Fractures
The scaphoid is the most commonly fractured carpal bone. Remember, if a fracture is suspected
scaphoid entering distally ... • ED Management ... Radiology #XRay #Diagnosis ... #Management #Orthopedics ... #Sports #MSK
Mallet Finger
Absence of a fracture does NOT exclude Mallet finger, the extension function of the DIP
extensor tendon distal ... : Hyperflexion injury ... Radiology #XRay #Diagnosis ... #Management #Hand ... #Orthopedics #MSK
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
spared in this injury ... Carpal Tunnel Syndrome ... Anterior Shoulder Dislocation ... Dermatomes #Myotomes #diagnosis ... sensory #motor #arm #physicalexam
RADIAL HEAD FRACTURE 
Radial head fractures are the most common elbow fracture in adults and are
olecranon fracture, distal ... , elbow dislocation ... fracture • ED Management ... Radiology #XRay #Diagnosis ... #MSK
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
- Differential Diagnosis ... bearing after injury ... Loss of sensation distal ... fracture - Patellar dislocation ... #msk #physicalexam