33 results
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
fractured carpal bone ... common carpal bone ... flexion and extension ... #Wrist #Carpal ... Orthopedics #Sports #MSK
Most Common Carpal Bone Fractures by Frequency
 • Scaphoid - 50-80%
 • Triquetral - 5-20%
 •
Common Carpal Bone ... Scaphoid - 50-80% • Triquetral ... drdevrad #Carpal #Bone ... #Fractures #wrist ... frequency #radiology #msk
Common Hand Fractures on X-Ray
Mallet finger - injury to the lateral extensor slips
Boutonniere deformity - injury
to the lateral extensor ... central band of extensor ... Terry thomas sign Triquetral ... XRay #Radiology #Wrist ... #differential #
Midcarpal Instability (MCI) of the Wrist

Intrinsic Midcarpal Instability
Usually affects young, hypermobile patients.
It is due to progressive
performed, the large bone ... subluxating the large bone ... extensors (ECU, ... #msk #orthopedics ... clinical #video #physicalexam
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
Example of 4th wrist extensor compartment tenosynovitis, note marked synovial hypertrophy and effusion in the tendon
Example of 4th wrist ... extensor compartment ... - MSK ultrasound ... mskultrasound #wrist ... #msk #pocus
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
Dislocation On lateral wrist ... , pain with wrist ... extension • ... trapezium, capitate, triquetrum ... Orthopedics #Sports #MSK
Spinal Cord Injury by Nerve Root Levels
Spinal Root	Sensory	Motor	Reflex
C4	Acromioclavicular Joint	Respiration	None
C5	Radial Antecubital Fossa	Elbow Flexion	Biceps Reflex
C6	Dorsal Thumb	Wrist Extension	Brachioradialis Reflex
C7	Dorsal
C6 Dorsal Thumb Wrist ... Extension Brachioradialis ... Middle Finger Elbow Extension ... 2nd MTP) Big Toe Extension ... NerveRoots #Levels #differential
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 ... extension • Possible ... Orthopedics #Sports #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 ... movement stresses the extensor ... clinical #video #physicalexam ... #msk #sports #orthopedics