50 results
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
"pooping duck sign ... "pooping duck sign ... #Wrist #Carpal ... Radiology #XRay #Diagnosis ... #Sports #MSK
Most Common Carpal Bone Fractures by Frequency
 • Scaphoid - 50-80%
 • Triquetral - 5-20%
 •
Scaphoid - 50-80% • Triquetral ... Bone #Fractures #wrist ... frequency #radiology #msk ... #orthopedics #diagnosis
Cubital Tunnel Syndrome: Pathogenesis and clinical findings

 • Paresthesia of 5th and medial half of 4th
Medial hand and elbow ... pain • + elbow ... test • + Tinel sign ... CubitalTunnel #Syndrome #Diagnosis ... #symptoms #msk
Common Hand Fractures on X-Ray
Mallet finger - injury to the lateral extensor slips
Boutonniere deformity - injury
Terry thomas sign ... Triquetral fracture ... XRay #Radiology #Wrist ... #differential #diagnosis
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
Thoracodorsal Nerve Elbow ... Radial Nerve Wrist ... #MuscleGroups #MSK ... #Orthopedics #Neurology ... #Diagnosis
Ulnar Fovea Sign Test for Fovea Disruption

Useful for patients with pain along the ulnar aspect of
Ulnar Fovea Sign ... examiner with the elbow ... The elbow is in ... #Ulnar #Fovea #Sign ... #orthopedics #msk
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
trapezium, capitate, triquetrum ... injury • ED Management ... Radiology #XRay #Diagnosis ... #Management #Orthopedics ... #Sports #MSK
Age of Ossification of Carpal Bones
Capitate - 1 Month
Hamate - 2 Months
Triquetral - 3 Years
Lunate -
Hamate - 2 Months Triquetral ... Carpal #Bones #wrist ... radiology #mnemonic #diagnosis ... #msk #pediatrics
Supracondylar Elbow Fracture
• Most common elbow fracture in children, peak age 5-7 
• When looking at
anterior sail sign ... can't make A-OK sign ... syndrome • ED Management ... Radiology #XRay #Diagnosis ... #MSK
RADIAL HEAD FRACTURE 
Radial head fractures are the most common elbow fracture in adults and are
anterior sail sign ... fracture • ED Management ... Radiology #XRay #Diagnosis ... #Management #Orthopedics ... #MSK