116 results
Approach to Joint Pain - Diagnostic Framework

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

1) Chronicity:
Pain - Diagnostic ... mycobacterial), RA, crystal ... culture, look for crystals ... psoriatic arthritis Crystals ... #Joint #Pain #MSK
Chronic Shoulder Pain - Differential Diagnosis Algorithm
4 tests for the AC joint:
1. Direct palpation
2. Cross-arm shoulder
Chronic Shoulder Pain ... 4 tests for the ... AC joint: 1. ... after cross-arm test ... Chronic #Shoulder #Pain
Approach to Joint Pain

History:
Is the pain from:
	• Joint
	• Adjacent bursa
	• Tendon
	• Ligament
	• Bone
	• Muscle
	• Referred from
Pain History ... present both at rest ... improves quickly with rest ... inflammatory arthritides Crystal ... ochronosis and crystal
Joint Disorders - Differential Diagnosis Algorithm
Monoarthritis
 • Septic
 • Crystalline
     - Gout
Joint Disorders ... Differential Diagnosis Algorithm ... Gout - Uric Acid Crystals ... Pyrophosphate Dihydrate Crystals ... Differential #Diagnosis #Algorithm
Joint Pain - Differential Diagnosis
Articular: Infectious, Degenerative, Inflammatory
Non-articular: Localized, General

#Joint #Pain #Differential #Diagnosis #MSK #algorithm
Joint Pain - Differential ... Localized, General #Joint ... #Pain #Differential ... Diagnosis #MSK #algorithm
CPPD vs Gout

== CPPD == 

Think About CPPD When:
 • Self-limited synovitis after surgery/trauma (> 65
swelling in weird joints ... onset of swelling, pain ... MCP, or shoulder joints ... deposition in joints ... swelling, significant pain
Distinguishing between Inflammatory and Degenerative joint disease
Inflammatory Joint Disease
 • Swelling stimulates joint nociceptors -> Pain
nociceptors -> Pain ... with rest • Overnight ... painful swelling -> Pain ... -> Pain with motion ... (relieved by rest
Gouty arthritis of the shoulder joint

50 yo male presented with shoulder pain.

Note double contour sign at
of the shoulder joint ... with shoulder pain ... deposition of crystal ... Shoulder #Clinical #POCUS ... #Ultrasound #Crystals
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:
STAIN CULTURE PCR TEST ... CRYSTALS) By ... Arthrocentesis #Joint
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
intracellular urate crystals ... pyrophosphate dihydrate crystals ... of the affected joint ... • Sacroiliac joint ... , and low back pain