11 results
Achilles Tendon Rupture - Pathogenesis and clinical findings
 • The Achilles tendon is 15cm long in
gastrocnemius (+ Thompson ... calf squeeze test ... ) - Pain over ... TendonRupture #diagnosis ... pathophysiology #msk
Anterior Shoulder Dislocation: Pathogenesis, clinical, and radiographic findings

Trauma, Fall on, outstretched arm, Overhead throwing => Abduction
muscle, tendon, ligaments ... muscles, tendons, ligaments ... or bone -> Pain ... #Dislocation #Diagnosis ... signs #symptoms #msk
Interphalangeal Joint Dislocation
Interphalangeal joint dislocations almost always occur dorsally, look for associated avulsion fractures! Here's a
and PIP joints ... capsule. collateral ligaments ... fingertip) • Exam: Pain ... Radiology #XRay #Diagnosis ... #Orthopedics #MSK
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
Femoral Head Fracture: Pathogenesis and clinical findings
 • Posterior hip dislocation -> Impaction force from femoral
femoral head onto anterior ... shearing injury -> Ligaments ... Leg • Shooting pains ... FemoralHead #Fractures #msk ... #diagnosis #pathophysiology
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
Distinguishing between Inflammatory and Degenerative joint disease
Inflammatory Joint Disease
 • Swelling stimulates joint nociceptors -> Pain
nociceptors -> Pain ... painful swelling -> Pain ... affects the knee hip ... Comparison #Versus #MSK ... JointDisease #JointPain #Diagnosis
Sacroiliac Distraction Test

The examiner applies downward and lateral pressure to the bilateral ASIS , the effect
distraction force to the anterior ... sacroiliac joint ... it reproduces pain ... #physicalexam #hip ... #msk #sports #orthopedics
Meralgia paresthetica: Pathogenesis and Clinical Findings
Compression/injury of Lateral Femoral Cutaneous Nerve (LFCN) -> Meralgia paresthetica
 •
absent: lower back pain ... Straight Leg Raise Test ... lateral inguinal ligament ... (near anterior ... MeralgiaParesthetica #MSK
RADIAL HEAD FRACTURE 
Radial head fractures are the most common elbow fracture in adults and are
elbow x-ray review alignment ... distal radioulnar joint ... ED Management: Pain ... Radiology #XRay #Diagnosis ... #Orthopedics #MSK