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 ... - Differential Diagnosis ... Fever/Chills/Joint pain ... #Effusions #causes ... #msk #physicalexam
Brudzinski’s Sign in Meningitis (first described in 19th century by Dr. Josef Brudzinski)

Brudzinski's sign is characterized
Passive neck flexion causes ... , resulting in pain ... meninges, reducing pain ... despite severe disease ... Clinical #Video #PhysicalExam
Trendelenburg Gait: Pathogenesis and clinical findings

Skeletal Pathology of the Hip
 • Arthritis
 • Congenital hip dysplasia
Sacroiliac Joint Pain ... Valgus position of knee ... pathophysiology #causes ... symptoms #signs #diagnosis ... #msk
Aortitis - Differential Diagnosis Framework
Non-Infectious Aortitis:
 • Vasculitides: Giant Cell Arteritis (GCA), Takayasu's arteritis, Cogan's Syndrome,
- Differential Diagnosis ... Polyarteritis Nodosa (PAN ... bovis • Fungi: Candida ... Paracoccidioides • Viruses: HIV ... #Differential #Diagnosis
Osgood-Schlatter Disease - MSK Radiology
Imaging Findings:
 • Infrapatellar fat-pad edema with loss of the patellar tendon
- MSK Radiology ... patellar tendon sharp posterior ... Tibial tuberosity pain ... #Knee #patella ... #msk
Infectious Joint Pain - Differential Diagnosis Algorithm 
Polyarticular Join Pain
 • Viral Myalgia
 • Viral Arthritis
Infectious Joint Pain ... - Differential Diagnosis ... rash) • Primary HIV ... Infectious #JointPain #MSK ... #Orthopedics #Causes
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
Diagnosis Framework ... Legg-Calve-Perthes disease ... - Lyme disease ... lower #extremity #msk ... #physicalexam
Piriformis Test

The Piriformis test evaluates for pain from sciatic nerve irritation caused by the piriformis muscle.
With
evaluates for pain ... nerve irritation caused ... patient prone, the knees ... #PhysicalExam # ... video #sports #msk
Distinguishing between Inflammatory and Degenerative joint disease
Inflammatory Joint Disease
 • Swelling stimulates joint nociceptors -> Pain
nociceptors -> Pain ... commonly affects the knee ... hip and L/C-spine ... Comparison #Versus #MSK ... JointDisease #JointPain #Diagnosis
Bone Deformity / Limp - Differential Diagnosis Algorithm 
Infection
 • Septic Arthritis
 • Cortical Hypertrophy
 •
- Differential Diagnosis ... Arthritis Other Causes ... Joint • Hip Dysplasia ... Knee Joint • ... Deformity #Limp #MSK