37 results
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
capitate ("apple") should ... tea cup") which should ... extension • ... associated injuries: Carpal ... #Carpal #Radiology
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
bones should be ... bones should be ... box, pain with wrist ... extension • Possible ... #Radiology #XRay
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Motor Function Shoulder ... , C8 (radial) Supination ... Pronation - C7, C8 Wrist ... Carpal Tunnel Syndrome ... Anterior Shoulder
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
Axillary Nerve Shoulder ... Radial Nerve Wrist ... Gluteal Nerve Knee ... Tibial Nerve Knee ... MuscleGroups #MSK #Orthopedics
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
ulna, pain with wrist ... flexion and extension ... Discharge with orthopedic ... Triquetrum #Fracture #Wrist ... #Carpal #Radiology
Median Nerve Tension Test (Upper-Limb Neurodynamic Tests, ULNT2)

To assess for Median Nerve Peripheral Neuropathy

Elbow extension →
shoulder external ... rotation → forearm supination ... → wrist dorsiflexion ... → shoulder abduction ... #sports #msk #orthopedics
Most Common Carpal Bone Fractures by Frequency
 • Scaphoid - 50-80%
 • Triquetral - 5-20%
 •
Most Common Carpal ... Pal @drdevrad #Carpal ... Bone #Fractures #wrist ... #frequency #radiology ... #msk #orthopedics
Median Nerve Tension Test (Upper-Limb Neurodynamic Tests, ULNT1)

To assess for Median Nerve Peripheral Neuropathy

Shoulder abduction →
Neuropathy Shoulder ... abduction → forearm supination ... → wrist dorsiflexion ... → shoulder external ... #sports #msk #orthopedics
Scaphoid Fractures
The scaphoid is the most commonly fractured carpal bone. Remember, if a fracture is suspected
snuffbox, pain with supination ... follow-up with Orthopedics ... follow-up with PCP or orthopedics ... Scaphoid #Fracture #Wrist ... #Carpal #Radiology
Inverted Supinator Test

Useful for identifying a lesion at the C5-C6 spinal cord level.  Tapping the
Inverted Supinator ... identifying a lesion ... elbow flexion, wrist ... extension and wrist ... #physicalexam #orthopedics