3565 results
Mallet Finger
Absence of a fracture does NOT exclude Mallet finger, the extension function of the DIP
Mallet finger, the extension ... of the terminal extensor ... immobilize • Splint: Extension ... Mallet #Finger #Radiology ... #Orthopedics #MSK
Interphalangeal Joint Dislocation
Interphalangeal joint dislocations almost always occur dorsally, look for associated avulsion fractures! Here's a
lateral slips of the extensor ... phalanx to enable extension ... phalanx to enable extension ... Dislocation #IPJoint #Radiology ... #Orthopedics #MSK
Flexor Tenosynovitis on POCUS

Index finger including flexor tendon being viewed.  Note small fluid around the
pain on passive extension ... Tenosynovitis #POCUS #MSK ... #clinical #radiology
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
wrist flexion and extension ... Wrist #Carpal #Radiology ... Orthopedics #Sports #MSK
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
pain with wrist extension ... Scaphoid #Carpal #Radiology ... Orthopedics #Sports #MSK
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
pain with wrist extension ... Wrist #Carpal #Radiology ... Orthopedics #Sports #MSK
Infantile Spasms 
Associated with Tuberous Sclerosis 
1) Flexor spasms: Sudden flexion of neck, trunk, arms, and
abdominal muscles 2) Extensor ... spasms: Abrupt extension ... ) Mixed flexor-extensor ... and arms, and extension
Clarke's Test (Patellar Grind Test)

Indicates Patellofemoral dysfunction.
 - Patient with knee in extension. Push posterior on
Patient with knee in extension ... of patella then ask ... Patellofemoral #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 ... Fractures #XRay #Radiology
Chronic Shoulder Pain - Differential Diagnosis Algorithm
4 tests for the AC joint:
1. Direct palpation
2. Cross-arm shoulder
Resisted shoulder extension ... Diagnosis #Algorithm #MSK