22 results
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
- Differential ... Diagnosis Framework ... - Giant cell tumor ... #diagnosis #msk ... #physicalexam
Mytomes - Segmental Innervation of Muscles
Shoulder	Abduction	C5	Axillary Nerve
Shoulder	Adduction	C6-C8	Thoracodorsal Nerve
Elbow	Flexion	C5	Musculocutaneous Nerve
Elbow	Extension	C7	Radial Nerve
Wrist	Extension	C6	Radial Nerve
Fingers	Flexion	C8	Median Nerve
Fingers	Abduction	T1	Ulnar Nerve
Hip	Flexion	L2	Nerve to Psoas
Hip	Extension	S1	Inferior Gluteal
Gluteal Nerve Knee ... Tibial Nerve Knee ... #MuscleGroups #MSK ... #Orthopedics #Neurology ... #Diagnosis
Ober's Test for Iliotibial Band Syndrome

Ober's Test assesses for iliotibial band syndrome.  With the patient
Iliotibial Band Syndrome ... iliotibial band syndrome ... and abduct the hip ... #physicalexam # ... sports #msk #orthopedics
Acute Spinal Cord Injuries: Pathogenesis and clinical findings
 • Anterior Cord Syndrome -> Anterior spinal artery
Anterior Cord Syndrome ... herniation or tumour ... #diagnosis #pathophysiology ... signs #symptoms #msk ... #orthopedics #neurology
Causes of Neuromuscular Weakness
 • Spinal Cord: Demyelinating Disease (MS), Epidural abscess, Infarction, Syringomyelia, Tetanus, Transverse
Demyelinating Disease (MS ... Myelitis, Trauma, Tumor ... Guillain-Barre syndrome ... Weakness #Causes #differential ... #diagnosis #neurology
Neuro-OphthaImoIogy - Visual Field Defects - Localization Map
 - Optic Nerve Lesion (Monocular vision loss)
 -
Pituitary/metastatic tumor ... Infection • MS ... NeuroOphthaImoIogy #Neurology ... #Differential # ... Diagnosis #Anatomy
Adie's Pupil
What? Unknown nature & benign
 • Regular and mildly dilated pupil (4-6mm);
 • Light-near dissociaton;
Holmes-Adie Syndrome ... Young females Differential ... Diagnosis: • CN ... trauma/orbital tumor ... #neurology #ophthalmology
Bone Deformity / Limp - Differential Diagnosis Algorithm 
Infection
 • Septic Arthritis
 • Cortical Hypertrophy
 •
Diagnosis Algorithm ... Legg-Calve-Perthes Disease Knee ... Patellofemoral Syndrome ... Deformity #Limp #MSK ... #Orthopedics #Causes
Ober's Test for TFL/ITB Inflammation

With the patient in the lateral position, affected side up.  The
grasps the bottom knee ... Iliotibial #Band #Syndrome ... #knee #clinical ... #video #physicalexam ... #sports #msk #orthopedics
Causes of Metabolic Alkalosis: Differential Diagnosis
ECF volume contracted: urine chloride concentration <20 meq/L
 • Gastric alkalosis:
Metabolic Alkalosis: Differential ... Diagnosis ECF ... diuretic effect has ... Renin-secreting tumors ... #nephrology