6591 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 ... Radiology #XRay #Diagnosis ... #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 ... Radiology #XRay #Diagnosis ... #Orthopedics #MSK
Chronic Shoulder Pain - Differential Diagnosis Algorithm
4 tests for the AC joint:
1. Direct palpation
2. Cross-arm shoulder
- Differential Diagnosis ... Resisted shoulder extension ... #Differential #Diagnosis ... #Algorithm #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 Extension ... to Psoas Hip Extension ... Tibial Nerve Knee Extension ... #MuscleGroups #MSK ... Orthopedics #Neurology #Diagnosis
Flexor Tenosynovitis (FTS)

The clinical diagnosis of FTS is made using Kanavel’s Signs:
 - Fusiform swelling.
 -
The clinical diagnosis ... Pain with passive extension ... Criteria #Sign #Hand #MSK ... #Diagnosis
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
Thomas" sign to diagnosis ... pain with wrist extension ... Radiology #XRay #Diagnosis ... Orthopedics #Sports #MSK
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
wrist flexion and extension ... Radiology #XRay #Diagnosis ... Orthopedics #Sports #MSK
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
pain with wrist extension ... Radiology #XRay #Diagnosis ... Orthopedics #Sports #MSK
Sarcoidosis - Diagnosis and Management Summary
Epidemiology
1) High incidence in Scandinavian countries (11-24 cases per 100,000 individuals
Sarcoidosis - Diagnosis ... at the time of diagnosis ... anterior/posterior MSK ... erythema nodosum (extensor ... #Sarcoidosis #Diagnosis
Infantile Spasms 
Associated with Tuberous Sclerosis 
1) Flexor spasms: Sudden flexion of neck, trunk, arms, and
spasms: Abrupt extension ... ) Mixed flexor-extensor ... and arms, and extension ... Developmental delay Diagnosis ... Peds #Pediatrics #Diagnosis