12 results
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
• Due to injury ... onto outstretched hand ... associated injuries: distal ... Thumb spica • Ortho ... Orthopedics #Sports #MSK
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
, median nerve injury ... Sugar tong • Ortho ... #Wrist #Carpal ... Radiology #XRay #Diagnosis ... Orthopedics #Sports #MSK
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
dorsum of the hand ... injuries: Perilunate dislocation ... Splint: Volar • Ortho ... Radiology #XRay #Diagnosis ... Orthopedics #Sports #MSK
Scaphoid Fractures
The scaphoid is the most commonly fractured carpal bone. Remember, if a fracture is suspected
scaphoid entering distally ... onto outstretched hand ... Thumb spica • Ortho ... Radiology #XRay #Diagnosis ... Orthopedics #Sports #MSK
Distal Radius Fracture 
Distal radius fracture is the most common orthopedic injury. Here's a quick summary.
•
onto outstretched hand ... , acute carpal tunnel ... Sugar tong • Ortho ... Radiology #XRay #Diagnosis ... #Orthopedics #MSK
Interphalangeal Joint Dislocation
Interphalangeal joint dislocations almost always occur dorsally, look for associated avulsion fractures! Here's a
to the dorsal distal ... Hyperextension injury ... Finger splint • Ortho ... Radiology #XRay #Diagnosis ... #Orthopedics #MSK
RADIAL HEAD FRACTURE 
Radial head fractures are the most common elbow fracture in adults and are
onto outstretched hand ... olecranon fracture, distal ... , elbow dislocation ... Radiology #XRay #Diagnosis ... #Orthopedics #MSK
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
aracteristic "claw hand ... spared in this injury ... Carpal Tunnel Syndrome ... Anterior Shoulder Dislocation ... #neurology #sensory
Mallet Finger
Absence of a fracture does NOT exclude Mallet finger, the extension function of the DIP
Finger deformity caused ... extensor tendon distal ... : Hyperflexion injury ... PIP joint • Ortho ... #Orthopedics #MSK
Orthopedic Essentials - Spinal Trauma and Spine Classification 
DENIS THREE COLUMN CONCEPT
Anterior column:
fractures: Don't cause ... spinal deformity or neurologic ... • Vertebral canal ... Bilateral facet joints dislocation ... #Orthopedics #diagnosis