1979 results
Knee Examination
Right Knee - Examination maneuvers include the Lachman (ACL), anterior drawer (ACL), Lateral pivot shift,
Lateral pivot shift ... #Sports #Knee #PhysicalExam
Pivot-Shift Test in ACL-deficient Knee

This patient has pathologic varus alignment across the knee and a chronic
Pivot-Shift Test ... dr.dold.md #Pivot #Shift ... clinical #video #PhysicalExam
5th metatarsal distal shaft fracture - Fracture detection on MSK ultrasound

The Ultrasound Site - MSK ultrasound
metatarsal distal shaft ... #metatarsal #shaft
Hair Loss (Alopecia) - General (Diffuse and Focal) Differential Diagnosis Algorithm

DIFFUSE
Scarring - Irreversible-biopsy required
 • Lupus
- Broken Hair Shafts ... Congenital hair shaft ... abnormalities - Hair Shafts
Spiral fracture of the distal tibial shaft with 90 degrees of lateral angulation (so the lateral
distal tibial shaft ... proximal fibular shaft
Metacarpal Fractures - Emergency Department Management
Management - Fractures of the Metacarpal Head, Neck, Shaft and Base
Metacarpal Head, Neck, Shaft
Oxyhemoglobin Dissociation Curve 

Left Shift - decreased unloading of O2 at tissue level (i.e.  increased
Curve Left Shift ... Hypophosphatæmia Right Shift ... #Left #Right #Shift
Oxygen-Hemoglobin Dissociation Curve

Left Shift (↓ O2 unloading to tissue), Left = Lower:
 • ↓ H+ (↑
Curve Left Shift ... Temperature Right Shift
Bacillary Angiomatosis: Lesion at juncture of glans and shaft of penis. 
Photo credit, Josh Fierer, M.D.

Charlie
juncture of glans and shaft
Causes of Hyperkalemia - Differential Diagnosis Algorithm
 • Increased Intake
 • Reduced Excretion (IV potassium with
Transcellular Shift