9 results
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
On lateral wrist ... associated injuries: Carpal ... fracture, median nerve ... #Wrist #Carpal ... #Sports #MSK
Posterior Elbow Dislocation
The elbow is the second most commonly dislocated major joint in adults and the
Fractures (medial/lateral ... anterior interosseous nerve ... Complex, involve orthopedics ... Complex, pending orthopedic ... #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 ... #Sports #MSK
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
- C6, C7, C8 Elbow ... Pronation - C7, C8 Wrist ... Wrist drop - Occurs ... Carpal Tunnel Syndrome ... Anterior Shoulder Dislocation
Distal Radius Fracture 
Distal radius fracture is the most common orthopedic injury. Here's a quick summary.
•
variable gross wrist ... fracture, median nerve ... injury, acute carpal ... tunnel syndrome ... #MSK
Monteggia Fracture 
Fracture of proximal ulnar shaft with radial head dislocation. Remember “MUGR” to recall where
with radial head dislocation ... Exam: swollen elbow ... posterior interosseous nerve ... ), compartment syndrome ... #Proximal #MSK
Hearing Loss - Differential Diagnosis Framework

Hearing Loss Types:
• Conductive
• Sensorineural
• Mixed
Presbycusis is the most common type
Hearing Loss - Differential ... : ○ Cranial nerves ... II ○ Susac’s syndrome ... Noise trauma ○ MS ... Hearing #Loss #Differential
Posterior Knee Dislocation Injury
Specifically, POSTERIOR KNEE DISLOCATIONS can have significant associated injury that needs unique approach
Common peroneal nerve ... extension, Tibial nerve ... Compartment syndrome ... trauma/vascular/orthopedic ... Posterior #Injury #msk
The Neurological Evaluation of a Comatose Patient

Definition:
 • Coma: a state of unresponsiveness; the absence of
consciousness Differential ... Unresponsive wakefulness syndrome ... • Locked-in syndrome ... threat Cranial Nerves ... flexed at the elbow