15 results
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
On lateral wrist ... tea cup") which should ... , median nerve injury ... #Radiology #XRay ... Orthopedics #Sports #MSK
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
all carpal bones should ... • Due to injury ... box, pain with wrist ... Carpal #Radiology #XRay ... Orthopedics #Sports #MSK
Anterior Shoulder Dislocation - ED Management
The shoulder is the most commonly dislocated major joint, 95% of
Dislocation - ED ... Axillary nerve injury ... neurovascular injury ... #Radiology #XRay ... Orthopedics #Sports #MSK
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
duck sign" on lateral ... duck sign" on lateral ... ulna, pain with wrist ... injuries: Perilunate dislocation ... Orthopedics #Sports #MSK
Anterior Shoulder Dislocation: Pathogenesis, clinical, and radiographic findings

Trauma, Fall on, outstretched arm, Overhead throwing => Abduction
Anterior Shoulder ... Dislocation ... on axillary x-ray ... Acute loss of lateral ... signs #symptoms #msk
Posterior Elbow Dislocation
The elbow is the second most commonly dislocated major joint in adults and the
Fractures (medial/lateral ... ), ligamentous injury ... brachial artery injury ... Posterior #Radiology #XRay ... Orthopedics #Sports #MSK
Lisfranc injury (tarsometatarsal fracture dislcoation)
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Lisfranc injury can range from purely soft tissue injury to
tarsometatarsal fracture dislcoation ... to fracutre dislocation ... athletic injuries should ... radiograph - oblique, lateral ... #Dislocation #XRay
Interphalangeal Joint Dislocation
Interphalangeal joint dislocations almost always occur dorsally, look for associated avulsion fractures! Here's a
Interphalangeal Joint Dislocation ... degrees of flexion; lateral ... Hyperextension injury ... IPJoint #Radiology #XRay ... #Orthopedics #MSK
RADIAL HEAD FRACTURE 
Radial head fractures are the most common elbow fracture in adults and are
at an elbow x-ray ... Tenderness to lateral ... , elbow dislocation ... Elbow #Radiology #XRay ... #Orthopedics #MSK
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Motor Function Shoulder ... spared in this injury ... Anterior Shoulder ... Dislocation - May ... Myotomes #diagnosis #neurology