9 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 ... Seronegative Reactive Syndrome ... fracture - Patellar dislocation ... #Effusions #causes ... differential #diagnosis #msk
Guillain–Barré syndrome (GBS)
(aka: Landry–Guillain–Barré–Strohl syndrome:
	Most common cause of acute flaccid paralysis
	Rapidly progressive ascending paralysis & areflexia
	Autonomic
Guillain–Barré syndrome ... Landry–Guillain–Barré–Strohl syndrome ...  Most common cause ... albumin-cytologic dissociation ...  West Nile virus
Posterior Knee Dislocation Injury
Specifically, POSTERIOR KNEE DISLOCATIONS can have significant associated injury that needs unique approach
Posterior Knee Dislocation ... POSTERIOR DISLOCATION ... nerve injury (25%) TEST ... suspicious of posterior dislocation ... #Dislocation #Posterior
Bone Deformity / Limp - Differential Diagnosis Algorithm 
Infection
 • Septic Arthritis
 • Cortical Hypertrophy
 •
Arthritis Other Causes ... Legg-Calve-Perthes Disease Knee ... Patellofemoral Syndrome ... Tendon Rupture, Dislocation ... Deformity #Limp #MSK
Guillain-Barre Syndrome - Summary

Acute AIDP that presents with rapidly progressive flaccid weakness

Epidemiology:
 • 1-2 cases/100,000 per
Guillain-Barre Syndrome ... Epidemiology: • 1-2 cases ... Albuminocytologic dissociation ... axonal form • MRI ... #diagnosis #management
Guillain-Barré Syndrome (GBS)
Acute autoimmune demyelinating polyradiculoneuropathy that presents with rapidly progressive flaccid weakness
Epidemiology:
 • Incidence: 1
Guillain-Barré Syndrome ... Incidence: 1 to 2 cases ... albuminocytologic dissociation ... and sensitive tests ... #diagnosis #management
Transient Patellar Dislocation - MSK Radiology
Imaging Findings:
 • Hyperintense marrow edema of the anterolateral femoral condyle
Transient Patellar Dislocation ... - MSK Radiology ... : • Lateral dislocation ... Transient #Patellar #Dislocation ... #clinical #mri #
SAPHO Syndrome Summary

What?
SAPHO syndrome is a rare chronic inflammatory disorder of bone, joint, and skin characterized
Rule out other causes ... - MRI: inflammation ... blockers had the best ... Rheumatology #diagnosis #management ... #Dermatology
Amyloidosis - Summary
Group of disorders associated with extracellular deposition of fibrils formed from low-molecular-weight proteins in
: • Nephrotic syndrome ... protein-albumin" dissociation ... Carpal tunnel syndrome ... hypoadrenalism • Nausea ... enlargement • MRI