20 results
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
On lateral wrist ... onto outstretched hand ... extension • ... #Wrist #Carpal ... #Radiology #XRay
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
duck sign" on lateral ... dorsum of the hand ... flexion and extension ... injuries: Perilunate dislocation ... #Sports #MSK
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
onto outstretched hand ... extension • Possible ... • ED Management ... #Radiology #XRay ... Orthopedics #Sports #MSK
Interphalangeal Joint Dislocation
Interphalangeal joint dislocations almost always occur dorsally, look for associated avulsion fractures! Here's a
degrees of flexion; lateral ... phalanx to enable extension ... phalanx to enable extension ... IPJoint #Radiology #XRay ... #MSK
Scaphoid Fractures
The scaphoid is the most commonly fractured carpal bone. Remember, if a fracture is suspected
onto outstretched hand ... • ED Management ... Scaphoid #Fracture #Wrist ... #XRay #Diagnosis ... #Sports #MSK
Midcarpal Instability (MCI) of the Wrist

Intrinsic Midcarpal Instability
Usually affects young, hypermobile patients.
It is due to progressive
The proximal carpal ... slightly extended, and ... extensors (ECU, ... #msk #orthopedics ... #clinical #video
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
musculocutaneous) • Extension ... C7 (median) • Extension ... C8 (median) • Extension ... Carpal Tunnel Syndrome ... Anterior Shoulder Dislocation
Maudsley's Test for Lateral Epicondylitis ("Tennis Elbow")

With the wrist prone, resist extension of the 3rd digit,
") With the wrist ... prone, resist extension ... digitorum muscle and ... tendon. ... #physicalexam #msk
Anterior Shoulder Dislocation: Pathogenesis, clinical, and radiographic findings

Trauma, Fall on, outstretched arm, Overhead throwing => Abduction
Force exceeds tensile ... on axillary x-ray ... Acute loss of lateral ... Structural damage to nerves ... signs #symptoms #msk
Maudsley's Test for Lateral Epicondylitis ("Tennis Elbow")

With the wrist prone, the patient attempts extension of the
") With the wrist ... patient attempts extension ... digitorum muscle and ... Elbow #clinical #video ... #physicalexam #msk