17 results
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
fractured carpal bone ... common carpal bone ... ulna, pain with wrist ... #Wrist #Carpal ... #Sports #MSK
Most Common Carpal Bone Fractures by Frequency
 • Scaphoid - 50-80%
 • Triquetral - 5-20%
 •
Common Carpal Bone ... Scaphoid - 50-80% • Triquetral ... #Fractures #wrist ... frequency #radiology #msk ... #orthopedics #diagnosis
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
Dislocation On lateral wrist ... trapezium, capitate, triquetrum ... Disposition: Pending orthopedic ... Diagnosis #Management #Orthopedics ... #Sports #MSK
Age of Ossification of Carpal Bones
Capitate - 1 Month
Hamate - 2 Months
Triquetral - 3 Years
Lunate -
Ossification of Carpal Bones ... Hamate - 2 Months Triquetral ... of the carpal bones ... #wrist #radiology ... mnemonic #diagnosis #msk
Midcarpal Instability (MCI) of the Wrist

Intrinsic Midcarpal Instability
Usually affects young, hypermobile patients.
It is due to progressive
Instability (MCI) of the Wrist ... deviation of the wrist ... performed, the large bone ... subluxating the large bone ... #msk #orthopedics
Left Wrist Drop - Radial Nerve Palsy on Physical Examination

Left hand drop due to compression of
Left Wrist Drop ... trauma_modern #Wrist ... clinical #video #orthopedics ... #msk #sports #neurology
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
between all carpal bones ... between all carpal bones ... box, pain with wrist ... #TerryThomas #Wrist ... #Sports #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
Radial Nerve Wrist ... #MuscleGroups #MSK ... #Orthopedics #Neurology
Scaphoid Fractures
The scaphoid is the most commonly fractured carpal bone. Remember, if a fracture is suspected
fractured carpal bone ... common carpal bone ... follow-up with Orthopedics ... Scaphoid #Fracture #Wrist ... #Sports #MSK
Inverted Supinator Test

Useful for identifying a lesion at the C5-C6 spinal cord level.  Tapping the
elbow flexion, wrist ... extension and wrist ... #Test #Reflex #neurology ... #physicalexam #orthopedics ... #msk #sports #IRR