21 results
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
fracture, median nerve ... #Wrist #Carpal ... #Radiology #XRay ... #Orthopedics #Sports ... #MSK
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
onto outstretched hand ... box, pain with wrist ... • ED Management ... #Radiology #XRay ... #MSK
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
distal to distal ulna ... , pain with wrist ... injuries: Perilunate dislocation ... #Carpal #Radiology ... #MSK
Posterior Elbow Dislocation
The elbow is the second most commonly dislocated major joint in adults and the
onto outstretched hand ... , neuropraxia (anterior ... interosseous nerve ... #Radiology #XRay ... #MSK
Mytomes - Segmental Innervation of Muscles
Shoulder	Abduction	C5	Axillary Nerve
Shoulder	Adduction	C6-C8	Thoracodorsal Nerve
Elbow	Flexion	C5	Musculocutaneous Nerve
Elbow	Extension	C7	Radial Nerve
Wrist	Extension	C6	Radial Nerve
Fingers	Flexion	C8	Median Nerve
Fingers	Abduction	T1	Ulnar Nerve
Hip	Flexion	L2	Nerve to Psoas
Hip	Extension	S1	Inferior Gluteal
Elbow Flexion ... Wrist Extension ... Fingers Abduction T1 Ulnar ... #MuscleGroups #MSK ... #Orthopedics #Neurology
Anterior Shoulder Dislocation - ED Management
The shoulder is the most commonly dislocated major joint, 95% of
Management The ... injuries: Axillary nerve ... #Anterior #Radiology ... #Orthopedics #Sports ... #MSK
Monteggia Fracture 
Fracture of proximal ulnar shaft with radial head dislocation. Remember “MUGR” to recall where
onto outstretched hand ... Exam: swollen elbow ... posterior interosseous nerve ... #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 ... #Carpal #Radiology ... #MSK
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
- C6, C7, C8 Elbow ... aracteristic "claw hand ... Carpal Tunnel Syndrome ... Anterior Shoulder ... Dislocation - May
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 ... when ulnar deviation ... #msk #orthopedics ... #clinical #video