6 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Pronation - C7, C8 Wrist ... Horner Syndrome Wrist ... spared in this injury ... axillary nerve ... 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 ... trauma_modern #Wrist ... #orthopedics #msk ... #sports #neurology
Median Nerve Injury and Anhidrosis
Note dry skin that precisely matches a median nerve distribution (spares ulnar
Median Nerve Injury ... (spares ulnar innervated ... caused a complete ... median nerve injury ... nerve injury was
Median Nerve Tension Test (Upper-Limb Neurodynamic Tests, ULNT2)

To assess for Median Nerve Peripheral Neuropathy

Elbow extension →
Median Nerve Tension ... forearm supination → wrist ... #physicalexam #sports ... #msk #orthopedics ... #neurology #ULNT
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
Dislocation On lateral wrist ... styloid fracture, median ... nerve injury ... #Orthopedics #Sports ... #MSK
Median Nerve Tension Test (Upper-Limb Neurodynamic Tests, ULNT1)

To assess for Median Nerve Peripheral Neuropathy

Shoulder abduction →
Median Nerve Tension ... forearm supination → wrist ... #physicalexam #sports ... #msk #orthopedics ... #neurology #ULNT