23 results
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
"Terry Thomas" sign ... • Due to injury ... onto outstretched hand ... MH/CCF/CWRU EM Res ... Orthopedics #Sports #MSK
Posterior Elbow Dislocation
The elbow is the second most commonly dislocated major joint in adults and the
• Mechanism: fall ... can't make A-OK sign ... ), ligamentous injury ... brachial artery injury ... Orthopedics #Sports #MSK
Femoral Head Fracture: Pathogenesis and clinical findings
 • Posterior hip dislocation -> Impaction force from femoral
: Pathogenesis and ... clinical findings ... Avulsion or shearing injury ... FemoralHead #Fractures #msk ... #diagnosis #pathophysiology
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
• Mechanism: Fall ... onto outstretched hand ... , median nerve injury ... • ED Management ... Orthopedics #Sports #MSK
Monteggia Fracture 
Fracture of proximal ulnar shaft with radial head dislocation. Remember “MUGR” to recall where
with radial head dislocation ... the radial head dislocation ... onto outstretched hand ... syndrome, ligamentous injury ... Orthopedics #Proximal #MSK
RADIAL HEAD FRACTURE 
Radial head fractures are the most common elbow fracture in adults and are
anterior sail sign ... • Mechanism: Fall ... onto outstretched hand ... , elbow dislocation ... #Orthopedics #MSK
Anterior Shoulder Dislocation: Pathogenesis, clinical, and radiographic findings

Trauma, Fall on, outstretched arm, Overhead throwing => Abduction
Pathogenesis, clinical ... findings Trauma, Fall ... #Diagnosis #signs ... #symptoms #msk ... #orthopedics #pathophysiology
Interphalangeal Joint Dislocation
Interphalangeal joint dislocations almost always occur dorsally, look for associated avulsion fractures! Here's a
Hyperextension injury ... with axial load (ball ... MH/CCF/CWRU EM Res ... #Hand #Orthopedics ... #MSK
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
"pooping duck sign ... • Mechanism: Fall ... injuries: Perilunate dislocation ... MH/CCF/CWRU EM Res ... Orthopedics #Sports #MSK
OK Sign - Interosseous Nerve Injury

Patients with compromise of anterior interosseous nerve will not be able
Nerve Injury ... interosseous nerve will ... #Finger #Hand # ... PhysicalExam #clinical ... #msk #orthopedics