11 results
Posterior Elbow Dislocation
The elbow is the second most commonly dislocated major joint in adults and the
dislocated major joint ... most common major joint ... ), ligamentous injury ... #Radiology #XRay ... Orthopedics #Sports #MSK
RADIAL HEAD FRACTURE 
Radial head fractures are the most common elbow fracture in adults and are
distal radioulnar joint ... membrane injury ... , elbow dislocation ... #Radiology #XRay ... #Orthopedics #MSK
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
spacing between all carpal ... • Due to injury ... injuries: distal radius ... #Radiology #XRay ... Orthopedics #Sports #MSK
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
associated injuries: Carpal ... , median nerve injury ... #Wrist #Carpal ... #Radiology #XRay ... Orthopedics #Sports #MSK
Interphalangeal Joint Dislocation
Interphalangeal joint dislocations almost always occur dorsally, look for associated avulsion fractures! Here's a
joint dislocations ... ligaments (prevent radial ... Hyperextension injury ... #Radiology #XRay ... #Orthopedics #MSK
Radial Head Elbow Fracture with displaced Fat Pads
Intra-Articular Fracture of the Elbow with displaced fat pads
Radial Head Elbow ... joint.⁣⁣ ... intra-articular injury ... trauma #clinical #radiology ... #msk #hemarthrosis
Pediatric Elbow Injuries - Elbow Xrays

Check the fat pads on the lateral projection:
1. A displaced anterior
Pediatric Elbow ... Not all joint effusions ... a significant injury ... head dislocation ... Injuries #Xrays #Radiology
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
- C6, C7, C8 Elbow ... spared in this injury ... Carpal Tunnel Syndrome ... Anterior Shoulder Dislocation ... sensory #motor #arm #physicalexam
Monteggia Fracture 
Fracture of proximal ulnar shaft with radial head dislocation. Remember “MUGR” to recall where
head dislocation ... Exam: swollen elbow ... syndrome, ligamentous injury ... Forearm #Ulnar #Radiology ... Orthopedics #Proximal #MSK
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
• Bursitis • IBD ... • Sciatica • Tarsal ... Trauma • Crush injury ... lower #extremity #msk ... #physicalexam