16 results
Approach to Joint Pain - Diagnostic Framework

1) Chronicity
2) Inflammatory vs Non-Inflammatory
3) Number of Joints Involved

1) Chronicity:
Lyme), reactive arthritis ... OA *Always do arthrocentesis ... - parvovirus, HIV ... #Joint #Pain #MSK ... approach #workup #differential
Trendelenburg Gait: Pathogenesis and clinical findings

Skeletal Pathology of the Hip
 • Arthritis
 • Congenital hip dysplasia
Arthritis ... joints • Decr ... • Sacroiliac Joint ... Valgus position of knee ... signs #diagnosis #msk
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
- Differential ... Fever/Chills/Joint ... Brucellosis - Viruses: HIV ... Effusions #causes #differential ... #diagnosis #msk
Infectious Joint Pain - Differential Diagnosis Algorithm 
Polyarticular Join Pain
 • Viral Myalgia
 • Viral Arthritis
Infectious Joint ... Pain - Differential ... Polyarticular Join ... rash) • Primary HIV ... Infectious #JointPain #MSK
Knee Effusions - Arthrocentesis Interpretation

Inflammatory arthritis:
 • Color: Yellow-> Green
 • Clarity: Opaque
 • Viscosity: Low
Knee Effusions - ... Arthrocentesis ... Inflammatory arthritis ... analysis: • MSU ... diagnosis #septic #joint
Approach to Joint Pain

History:
Is the pain from:
	• Joint
	• Adjacent bursa
	• Tendon
	• Ligament
	• Bone
	• Muscle
	• Referred from
• Inflammatory arthritis ... Noninflammatory arthritis ... e.g., congenital hip ... #Pain #MSK #rheumatology ... approach #workup #differential
Bone Deformity / Limp - Differential Diagnosis Algorithm 
Infection
 • Septic Arthritis
 • Cortical Hypertrophy
 •
Deformity / Limp - Differential ... JointHip Dysplasia ... Legg-Calve-Perthes Disease Knee ... Deformity #Limp #MSK ... #Differential #
Ultrasound guided arthrocentesis (knee) with a resident.  Same principles apply for all ultrasound guided procedures.
arthrocentesis ... (knee) with a resident ... on the needle tip ... #Arthrocentesis ... #MSK
Distinguishing between Inflammatory and Degenerative joint disease
Inflammatory Joint Disease
 • Swelling stimulates joint nociceptors -> Pain
Inflammatory Joint ... in Rheumatoid arthritis ... commonly affects the knee ... hip and L/C-spine ... Comparison #Versus #MSK
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
Differential Diagnosis ... spine, shoulders, hips ... Parvovirus B19 • HIV ... Joint #pain #Differential ... #Diagnosis #MSK