14 results
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
with the distal radius ... fracture, median nerve ... Radiology #XRay #Diagnosis ... #Orthopedics #Sports ... #MSK
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
hand" ± Horner Syndrome ... nerve in the radial ... Carpal Tunnel Syndrome ... Anterior Shoulder Dislocation ... Dermatomes #Myotomes #diagnosis
Posterior Elbow Dislocation
The elbow is the second most commonly dislocated major joint in adults and the
anterior interosseous nerve ... + radial head fracture ... Radiology #XRay #Diagnosis ... #Orthopedics #Sports ... #MSK
Trendelenburg Gait: Pathogenesis and clinical findings

Skeletal Pathology of the Hip
 • Arthritis
 • Congenital hip dysplasia
Superior gluteal nerve ... Fracture • Hip dislocation ... #causes #symptoms ... #signs #diagnosis ... #msk
Monteggia Fracture 
Fracture of proximal ulnar shaft with radial head dislocation. Remember “MUGR” to recall where
head dislocation ... posterior interosseous nerve ... ), compartment syndrome ... Radiology #XRay #Diagnosis ... Orthopedics #Proximal #MSK
Ear Pain (Otalgia) - Differential Diagnosis Framework

Primary Otalgia 
 - Pain that originates from the ear
- Differential Diagnosis ... V: • TMJ syndrome ... vision or black spots ... Otalgia #Ear #Pain #Otology ... #differential #diagnosis
Guillain-Barre Syndrome - Summary

Acute AIDP that presents with rapidly progressive flaccid weakness

Epidemiology:
 • 1-2 cases/100,000 per
Epidemiology: • 1-2 cases ... Guillain-Barre Pathophysiology ... • Weakness: Starts ... Guillain-Barre Diagnosis ... Albuminocytologic dissociation
Cauda Equina Syndrome
Causes:
 • Large lumbar degenerative disc herniation (central)
 • Severe lumbar spondylosis
 • Neoplasm
Cauda Equina Syndrome ... Causes: • Large ... damage to sacral nerves ... #MSK #pathophysiology ... #diagnosis #symptoms
Guillain–Barré syndrome (GBS)
(aka: Landry–Guillain–Barré–Strohl syndrome:
	Most common cause of acute flaccid paralysis
	Rapidly progressive ascending paralysis & areflexia
	Autonomic
Guillain–Barré syndrome ...  Most common cause ... albumin-cytologic dissociation ... Differential diagnosis ... prominent cranial nerve
Hearing Loss - Differential Diagnosis Framework

Hearing Loss Types:
• Conductive
• Sensorineural
• Mixed
Presbycusis is the most common type
- Differential Diagnosis ... cause unknown) ... II ○ Susac’s syndrome ... Noise trauma ○ MS ... #otology #otolaryngology