14 results
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 ... HSV, Varicella, EBV ... fracture - Patellar dislocation ... - Aneurysmal bone ... differential #diagnosis #msk
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
between all carpal bones ... between all carpal bones ... associated injuries: distal ... MH/CCF/CWRU EM ... Orthopedics #Sports #MSK
Patellar dislocation 
Patella dislocation refers to when the kneecap is completely displaced out of its normal
patella is primarily caused ... direct blow) to the knee ... your femur (thigh bone ... #Orthopedics #Knee ... #msk
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Vascular Joint Pain - Differential Diagnosis Algorithm 
 - Constant Pain (Ischemia)
 - Acute Onset
 -
Differential Diagnosis Algorithm ... fractured long bone ... Trauma to Vessel (dislocation ... Vascular #JointPain #MSK ... #Orthopedics #Causes
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
fractured carpal bone ... common carpal bone ... injuries: Perilunate dislocation ... MH/CCF/CWRU EM ... Orthopedics #Sports #MSK
Bone Deformity / Limp - Differential Diagnosis Algorithm 
Infection
 • Septic Arthritis
 • Cortical Hypertrophy
 •
Bone Deformity / ... Arthritis Other Causes ... Legg-Calve-Perthes Disease Knee ... Tendon Rupture, Dislocation ... Deformity #Limp #MSK
Osgood-Schlatter Disease - MSK Radiology
Imaging Findings:
 • Infrapatellar fat-pad edema with loss of the patellar tendon
Osgood-Schlatter Disease - MSK ... fragmentation and mild bone ... signal of the distal ... marrow edema and bony ... Schlatter #Disease #Knee
Soft Tissue Lesions - Differential Diagnosis Algorithm 
Septic
 • Septic Bursitis
 • Necrotizing Fasciitis
 • Septic
Differential Diagnosis Algorithm ... • Sprain • Dislocation ... • Sprain • Dislocation ... SoftTissue #Lesions #MSK ... #Orthopedics #Causes
RADIAL HEAD FRACTURE 
Radial head fractures are the most common elbow fracture in adults and are
posterior) and bone ... olecranon fracture, distal ... injury, elbow dislocation ... MH/CCF/CWRU EM ... #Orthopedics #MSK
Mallet Finger
Absence of a fracture does NOT exclude Mallet finger, the extension function of the DIP
Finger deformity caused ... disruption (may be bony ... extensor tendon distal ... MH/CCF/CWRU EM ... #Orthopedics #MSK