43 results
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
- Differential ... Seronegative Reactive Syndrome ... Intra-articulation fracture ... Effusions #causes #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
Axillary Nerve Shoulder ... Gluteal Nerve Knee ... Tibial Nerve Knee ... #MuscleGroups #MSK ... #Orthopedics #Neurology
Diagram of different types of bone tumors that can occur around the knee on XRay -
occur around the knee ... island • Stress fracture ... @docskalski #Knee ... Diagnosis #Bony #Differential ... Radiology #XRay #msk
Vertebral Body Abnormalities

A sheet of common (and uncommon) vertebral body findings, because a completely “normal” spine
Vertebra Hurler Syndrome ... Morquio Syndrome ... Plana Compression Fracture ... Abnormalities #Radiology #MSK ... Vertebrae #diseases #differential
Vascular Joint Pain - Differential Diagnosis Algorithm 
 - Constant Pain (Ischemia)
 - Acute Onset
 -
Vascular Joint Pain - Differential ... Embolism (e.g. fractured ... Marfan's Syndrome ... Vascular #JointPain #MSK ... #Differential #
Causes of Low Back Pain - Differential Diagnosis
Intrinsic Spine: Lumbar strain, Herniated nucleus pulposus, Compression fracture,
Low Back Pain - Differential ... pulposus, Compression fracture ... cholecystitis; • Neurologic ... Lower #BackPain #Differential ... #primarycare #msk
Evaluation of Electrical Injury in the Emergency Department 

Common Injuries by System:

CNS - Seizure, coma, spinal
ED arrival MSK ... - Fractures, dislocations ... (posterior shoulder ... compartment syndrome
Diagram of different types of bone tumors that can occur around the knee on XRay
Age <
occur around the knee ... island • Stress fracture ... @docskalski #Knee ... Lesions #Bony #Differential ... Radiology #XRay #MSK
Causes of Growth Discrepancy: Large for Gestational Age - Differential Diagnosis Algorithm
Maternal Factors:
 • Multiparity
 •
Gestational Age - Differential ... Sotos syndrome, ... Complications: • Shoulder ... injury, clavicular fracture ... Complications #Pregnancy #Differential
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Reflexes: • Knee ... • Cauda Equina Syndrome ... such as fibular fracture ... Myotomes #diagnosis #neurology