61 results
Approach to Joint Pain - Diagnostic Framework

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

1) Chronicity:
Approach to Joint ... Monoarticular (1 joint ... ): • Septic joint ... (bacterial, gonococcal ... #Joint #Pain #MSK
Rheumatoid arthritis (RA): Pathogenesis and Joint diseases features
 • RA affects 1% of population, women >
Pathogenesis and Joint ... poly-articular joint ... Joint involvement ... space decr joint ... RheumatoidArthritis #RA #pathophysiology
Rheumatoid arthritis (RA): X-ray features
 • Soft tissue swelling (best seen by comparing left & right
together) • Joint ... closer to the joints ... ) • Joint Subluxations ... (Joint deformities ... Radiology #Clinical #Pathophysiology
Gonococcal Ophthalmia Neonatorum (GON) - Figure 1

A 4-day-old girl was brought to the emergency department (ED)
Gonococcal Ophthalmia ... A 4-day-old girl ... Pediatrics #Gonorrhea #Gonococcal
Reactive Arthritis
 • Inflammation of joints (commonly large joints)
    - Asymmetric Oligoarthritis: Joint
Inflammation of joints ... commonly large joints ... Oligoarthritis: Joint ... pain in a few joints ... ReactiveArthritis #pathophysiology
Disseminated Gonococcal Infection - Diagnosis and Management Summary

Bacteremic spread of the Gram-negative diplococci Neisseria gonorrhoeae. History
Disseminated Gonococcal ... an accessible joint ... oligoarthritis • Distal joints ... #Disseminated #Gonococcal
Distinguishing between Inflammatory and Degenerative joint disease
Inflammatory Joint Disease
 • Swelling stimulates joint nociceptors -> Pain
and Degenerative joint ... Inflammatory Joint ... Swelling stimulates joint ... • Moving the joint ... JointPain #Diagnosis #pathophysiology
Septic Arthritis: Pathogenesis and clinical findings
Notes:
- Septic Arthritis is typically monoarticular & the knee is involved
- Typical S.A joint ... most common non-gonnococcal ... SepticArthritis #pathophysiology
Synovial Fluid Analysis:

Findings (COLOR	TRANSPARENCY	VISCOSITY	WBC COUNT (PER MM3)	PMN CELL COUNT (%)	GRAM STAIN	CULTURE	PCR TEST	CRYSTALS)

By Condition (Normal 
Noninflammatory 
Inflammatory:
Infectious: gonococcal ... Arthrocentesis #Joint
Infectious Joint Pain - Differential Diagnosis Algorithm 
Polyarticular Join Pain
 • Viral Myalgia
 • Viral Arthritis
Infectious Joint ... Polyarticular Join ... • Disseminated Gonoccocal