285 results
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
onto outstretched hand ... dorsum of the hand ... ulna, pain with wrist ... #Wrist #Carpal ... Orthopedics #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
Age of Ossification of Carpal Bones
Capitate - 1 Month
Hamate - 2 Months
Triquetral - 3 Years
Lunate -
Hamate - 2 Months Triquetral ... , for the LEFT hand ... for the RIGHT hand ... Carpal #Bones #wrist ... mnemonic #diagnosis #msk
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
Dislocation On lateral wrist ... onto outstretched hand ... , pain with wrist ... trapezium, capitate, triquetrum ... Orthopedics #Sports #MSK
Common Hand Fractures on X-Ray
Mallet finger - injury to the lateral extensor slips
Boutonniere deformity - injury
Common Hand Fractures ... to the central band ... Terry thomas sign Triquetral ... drdevradiology #Hand ... XRay #Radiology #Wrist
Ossification of Carpal Bones

It’s always tricky to remember the age of ossification of the carpal bones
interpreting a Pediatric wrist ... the bones of the wrist ... CLOCKWISE for the LEFT wrist ... -6-7 years for Triquetral ... Carpal #Bones #Wrist
Hand Nerve Injuries - Common Presentations
 • Wrist Drop - Radial Nerve Injury
 • Claw Hand
Hand Nerve Injuries ... Presentations • Wrist ... Injury • Claw Hand ... Nerve Injury • Hand ... Differential #Diagnosis #MSK
Left Wrist Drop - Radial Nerve Palsy on Physical Examination

Left hand drop due to compression of
Left Wrist Drop ... Examination Left hand ... sleeping as in this case ... trauma_modern #Wrist ... #orthopedics #msk
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Pronation - C7, C8 Wrist ... Erb's Palsy is caused ... Horner Syndrome Wrist ... palsy" is a common cause ... Dislocation - May cause
Midcarpal Instability (MCI) of the Wrist

Intrinsic Midcarpal Instability
Usually affects young, hypermobile patients.
It is due to progressive
Instability (MCI) of the Wrist ... slightly extended, and ... deviation of the wrist ... #Instability #Wrist ... #msk #orthopedics