13 results
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
tea cup") which should ... fracture, median nerve ... injury • ED ... #Orthopedics #Sports ... #MSK
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Motor Function Shoulder ... spared in this injury ... Anterior Shoulder ... Dislocation - May ... Myotomes #diagnosis #neurology
Left Wrist Drop - Radial Nerve Palsy on Physical Examination

Left hand drop due to compression of
Left Wrist Drop ... sleeping as in this case ... #PhysicalExam #clinical ... #orthopedics #msk ... #sports #neurology
Causes of Neuromuscular Weakness
 • Spinal Cord: Demyelinating Disease (MS), Epidural abscess, Infarction, Syringomyelia, Tetanus, Transverse
Causes of Neuromuscular ... Demyelinating Disease (MS ... Poliomyelitis, Guillain-Barre ... injury, Sarcoid ... differential #diagnosis #neurology
Guillain-Barre Syndrome - Summary

Acute AIDP that presents with rapidly progressive flaccid weakness

Epidemiology:
 • 1-2 cases/100,000 per
Clinical Features ... • Weakness: Starts ... Albuminocytologic dissociation ... axonal form • MRI ... management #treatment #neurology
Median Nerve Tension Test (Upper-Limb Neurodynamic Tests, ULNT2)

To assess for Median Nerve Peripheral Neuropathy

Elbow extension →
forearm supination → wrist ... #ULNT2 #ULTT2 #clinical ... #physicalexam #sports ... #msk #orthopedics ... #neurology #ULNT
Hippocratic Shoulder Reduction 
Shoulder reduction is the process of returning the shoulder to its normal position
dislocation. ... risk of axillary nerve ... injury. ... #Reduction #MSK ... #Orthopedics #clinical
Median Nerve Tension Test (Upper-Limb Neurodynamic Tests, ULNT1)

To assess for Median Nerve Peripheral Neuropathy

Shoulder abduction →
forearm supination → wrist ... #ULNT1 #ULTT1 #clinical ... #physicalexam #sports ... #msk #orthopedics ... #neurology #ULNT
Humeral Avulsion of the Inferior Glenohumeral Ligament (HAGL)
 • Imaging Findings:
 • Large defect of the
HAGL) can be a cause ... dislocation WITHOUT ... capsuloligamentous injury ... #clinical #mri ... #diagnosis #msk
Guillain-Barré Syndrome (GBS)
Acute autoimmune demyelinating polyradiculoneuropathy that presents with rapidly progressive flaccid weakness
Epidemiology:
 • Incidence: 1
Guillain-Barré Syndrome ... Incidence: 1 to 2 cases ... albuminocytologic dissociation ... - Spinal MRI may ... diagnosis #management #neurology