16 results
ANKLE FRACTURES: Lauge-Hansen Classification 
- Describes position of foot and mechanism of injury. Fx
progresses from Stage
: Lauge-Hansen Classification ... ATFL ligament tear ... ) #Diagnosis # ... Lauge #Hansen #Classification ... #ALiEM
Shoulder Exam - Provocative Testing

Supraspinatus muscle injury:
 - Jobe’s Test
 - Hawkin’s Test
 - Drop Arm
- Neer Test Labral ... tear: - Crank ... Yergason Test #Diagnosis ... #Impingement #ALiEM
Femoral Head Fracture: Pathogenesis and clinical findings
 • Posterior hip dislocation -> Impaction force from femoral
injury -> Ligaments tear ... from impact onto lateral ... Inability to weight-bear ... Fractures #msk #diagnosis ... #pathophysiology
Elbow Injuries Epicondyle Fracture (Lateral) - Milch Classification - Type I: Fx line is lateral to
) - Milch Classification ... trochlear groove #Diagnosis ... #EM #Ortho #Lateral ... Fracture #Milch #Classification ... #ALiEM
Classification of Pelvic Ring Fractures: Mechanisms, Clinical Features and Complications
 • Anterior Posterior Compression (APC) -
Classification of ... Compression - Lateral ... PelvicRing #Fractures #Classification ... Orthopedics #MSK #diagnosis ... complications #pathophysiology
Labral tear - Crank Test 1. Position patient's arm in 90 degree abduction and elbow flexion
Labral tear - Crank ... rotating arm #Diagnosis ... Ortho #Sports #Labral ... #Tear #RotatorCuff ... #Test #Crank #ALiEM
Meralgia paresthetica: Pathogenesis and Clinical Findings
Compression/injury of Lateral Femoral Cutaneous Nerve (LFCN) -> Meralgia paresthetica
 •
Compression/injury of Lateral ... sensory • Before diagnosis ... inguinal ligament (near ... MeralgiaParesthetica #MSK #pathophysiology ... #differential #diagnosis
Labral tear - O'Brien Test - 1. Position patient's shoulder in 90 degree flexion, elbow extended,
Labral tear - O'Brien ... supinated (thumb up) #Diagnosis ... Ortho #Sports #Labral ... #Tear #RotatorCuff ... #Test #OBrien #ALiEM
Hemophagocytic Lymphohistiocytosis (HLH)
Pathophysiology: Triggering factor (infection,...)→Activation of CD8 T cells (IFN-y) → Excessive activation of macrophages
Lymphohistiocytosis (HLH) Pathophysiology ... Auto-amplification loop Diagnosis ... adenopathies, confusion ... Nicolas Taar ... Lymphohistiocytosis #diagnosis
Iliotibial Band Friction Syndrome - MSK Radiology
Imaging Findings:
 • The iliotibial band (ITB) is thickened with
thickened with no tear ... cm proximal to lateral ... Differential diagnosis ... Direct trauma/contusion ... Syndrome #Radiology #diagnosis