17 results
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
fractured carpal bone ... wrist flexion and extension ... Wrist #Carpal #Radiology ... #XRay #Diagnosis ... #Sports #MSK
Most Common Carpal Bone Fractures by Frequency
 • Scaphoid - 50-80%
 • Triquetral - 5-20%
 •
Common Carpal Bone ... Scaphoid - 50-80% • Triquetral ... wrist #frequency #radiology ... #msk #orthopedics ... #diagnosis
Mallet Finger
Absence of a fracture does NOT exclude Mallet finger, the extension function of the DIP
joint needs to be clinically ... disruption (may be bony ... Mallet #Finger #Radiology ... #XRay #Diagnosis ... #MSK
Primary Bone Tumors - Differential Diagnosis Algorithm 

Metastatic - Most common tumour in adults
 - Breast
- Differential Diagnosis ... Tumours #MSK #Differential ... #Diagnosis #Algorithm ... #Orthopedics #Causes ... #Oncology #Radiology
Vascular Joint Pain - Differential Diagnosis Algorithm 
 - Constant Pain (Ischemia)
 - Acute Onset
 -
- Differential Diagnosis ... Algorithm - ... fractured long bone ... Vascular #JointPain #MSK ... #Algorithm #Orthopedics
Pathologic / Fragility Fractures - Differential Diagnosis Algorithm 
Tumours
 - See Bone Lesions Scheme
Paget's Disease
 -
- Differential Diagnosis ... Algorithm Tumours ... - See Bone Lesions ... Fractures #Pathologic #MSK ... #Algorithm #Orthopedics
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
pain with wrist extension ... trapezium, capitate, triquetrum ... Wrist #Carpal #Radiology ... #XRay #Diagnosis ... #Sports #MSK
Midcarpal Instability (MCI) of the Wrist

Intrinsic Midcarpal Instability
Usually affects young, hypermobile patients.
It is due to progressive
performed, the large bone ... contraction of the wrist extensors ... (ECU, ECRB) The ... Instability #Wrist #msk ... #orthopedics #clinical
Chronic Joint Pain - Differential Diagnosis Algorithm 
Intra-Articular
 - Bone
     • Stress
- Differential Diagnosis ... - Bone ... • Fascitis (e.g ... Intraarticular #MSK ... #Algorithm #Orthopedics
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
between all carpal bones ... Thomas" sign to diagnosis ... pain with wrist extension ... Scaphoid #Carpal #Radiology ... #Sports #MSK