17 results
Spondylolysis & Spondylolisthesis: Pathogenesis and Clinical Findings

Pars interarticularis stress fracture (spondylolysis) - most frequently in the
S1 => Weakened stability ... XR — scotty dog sign ... Spondylolisthesis #MSK ... #diagnosis #pathophysiology ... #signs #symptoms
Stress Fracture: Pathogenesis and clinical findings
Abnormal biomechanics, Repetitive impact activities
=> Repetitive subthreshold mechanical loading
=> Bone strain
=>
strain => Bone ... micro-damage exceeds ability ... StressFractures #msk ... #orthopedics #pathophysiology ... #symptoms #signs
Femoral Head Fracture: Pathogenesis and clinical findings
 • Posterior hip dislocation -> Impaction force from femoral
tear a portion of bone ... onto lateral hip Signs ... /Symptoms/Complications ... FemoralHead #Fractures #msk ... #signs #symptoms
Diagram of different types of bone tumors that can occur around the knee on XRay -
involucrum • Paget disease ... phase • Paget disease ... blade of grass sign ... #Differential #Radiology ... #XRay #msk #lesions
Systemic Lupus Erythematosus (SLE): Musculoskeletal Manifestations

 • Immune Complex Deposition
    - Arthralgia, Arthritis
Weakness, Incr CK • Bone ... Erythematosus #SLE #MSK ... Musculoskeletal #Complications ... #pathophysiology ... #signs #symptoms
Achilles Tendon Rupture - Pathogenesis and clinical findings
 • The Achilles tendon is 15cm long in
pre-determined etiology Signs ... /Symptoms/Complications ... TendonRupture #diagnosis #signs ... #symptoms #pathophysiology ... #msk #orthopedics
Diagram of different types of bone tumors that can occur around the knee on XRay
Age <
involucrum • Paget disease ... phase • Paget disease ... blade of grass sign ... Differential #Diagnosis #Radiology ... #XRay #MSK #pediatrics
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
"pooping duck sign ... fracture • Complications ... "pooping duck sign ... Wrist #Carpal #Radiology ... Orthopedics #Sports #MSK
Polycythemia Vera (PV) - Diagnosis and Management Summary
Diagnostic Criteria:
 • Elevated hemoglobin and/or hematocrit AND
 •
Hypercellular bone ... present, symptoms, signs ... , and complications ... • Treatment is ... von Willebrand disease
X-Linked Agammaglobulinemia: Pathogenesis and clinical findings
The epidemiology of this disease is 1/340,000 births and roughly double
history of the disease ... Signs of immunodeficiency ... humoral immunity Signs ... cells in blood and bone ... Agammaglobulinemia #XLinked #pathophysiology