7 results
Approach to Joint Pain

History:
Is the pain from:
	• Joint
	• Adjacent bursa
	• Tendon
	• Ligament
	• Bone
	• Muscle
	• Referred from
• Tendon • Ligament ... present both at rest ... e.g., congenital hip ... #Pain #MSK #rheumatology ... #differential #diagnosis
Interphalangeal Joint Dislocation
Interphalangeal joint dislocations almost always occur dorsally, look for associated avulsion fractures! Here's a
PIP joints are ... and PIP joints ... capsule. collateral ligaments ... Radiology #XRay #Diagnosis ... #Orthopedics #MSK
Approach to Joint Pain - Diagnostic Framework

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

1) Chronicity:
Pain - Diagnostic ... for cell count, culture ... - parvovirus, HIV ... #Joint #Pain #MSK ... #differential #diagnosis
Femoral Head Fracture: Pathogenesis and clinical findings
 • Posterior hip dislocation -> Impaction force from femoral
femoral head onto anterior ... shearing injury -> Ligaments ... weight-bear • Arthritic ... FemoralHead #Fractures #msk ... #diagnosis #pathophysiology
Distinguishing between Inflammatory and Degenerative joint disease
Inflammatory Joint Disease
 • Swelling stimulates joint nociceptors -> Pain
nociceptors -> Pain with rest ... in Rheumatoid arthritis ... affects the knee hip ... Comparison #Versus #MSK ... JointDisease #JointPain #Diagnosis
Bone Deformity / Limp - Differential Diagnosis Algorithm 
Infection
 • Septic Arthritis
 • Cortical Hypertrophy
 •
- Differential Diagnosis ... JointHip Dysplasia ... Disease Knee Joint ... (e.g., Tendon Rupture ... Deformity #Limp #MSK
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
Gram stain and culture ... of the affected joint ... : HIV test, a rubella ... (to support a diagnosis ... laboratory #workup #diagnosis