39 results
Hand Nerve Injuries - Common Presentations
 • Wrist Drop - Radial Nerve Injury
 • Claw Hand
Presentations • Wrist ... Injuries #Anatomy #Differential ... #Diagnosis #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 ... Gluteal Nerve Knee ... Tibial Nerve Knee ... #MuscleGroups #MSK
Diagram of different types of bone tumors that can occur around the knee on XRay -
occur around the knee ... @docskalski #Knee ... Diagnosis #Bony #Differential ... peds #pediatrics #msk
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
Dislocation On lateral wrist ... , pain with wrist ... injury • ED Management ... XRay #Diagnosis #Management ... Orthopedics #Sports #MSK
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
Causes of Knee Effusions ... - Differential ... distal to the knee ... Effusions #causes #differential ... #diagnosis #msk
Monoarthritis - Differential Diagnosis
Infection (Acute):
 - S. aureus (most common)
 - S. pneumonia
 - Salmonella (in
Monoarthritis - Differential ... Usually involves the knee ... involve the b/l wrists ... Monoarthritis #Differential
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 ... Femoral Condyle Knee ... Ankle Dorsiflexion Knee ... NerveRoots #Levels #differential
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
ulna, pain with wrist ... fractures • ED Management ... Triquetrum #Fracture #Wrist ... XRay #Diagnosis #Management ... Orthopedics #Sports #MSK
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
box, pain with wrist ... dislocation • ED Management ... #TerryThomas #Wrist ... XRay #Diagnosis #Management ... Orthopedics #Sports #MSK
Diagram of different types of bone tumors that can occur around the knee on XRay -
occur around the knee ... @docskalski #Knee ... Diagnosis #Bony #Differential ... Radiology #XRay #msk