Useless hand syndrome with astereognosis in multiple sclerosis

Area of Science:

• Neurology
• Neuroscience
• Spinal Cord Imaging

Background:

• Multiple sclerosis (MS) is a demyelinating disease affecting the central nervous system.
• Useless hand syndrome (UHS) and astereognosis are debilitating neurological conditions impacting hand function.
• The precise spinal cord localization causing UHS in MS remains incompletely understood.

Observation:

• A patient with MS presented with bilateral useless hand syndrome (UHS) and astereognosis.
• Clinical presentation of UHS mimicked limb-kinetic apraxia with astereognosis.
• Cervical MRI revealed a gadolinium-enhanced lesion at C3-C4, primarily affecting the posterior cord.

Findings:

• Cervical posterior cord lesions at the C3-C4 level are implicated in causing UHS and astereognosis in MS.
• These lesions disrupt sensorimotor integration crucial for complex finger movements.
• The findings link specific spinal cord pathology to a distinct clinical syndrome in MS.

Implications:

• This case suggests a direct causal link between high cervical posterior cord lesions and UHS with astereognosis in MS.
• Understanding this relationship can refine diagnostic approaches and targeted treatments for MS-related hand dysfunction.
• Further research into spinal cord lesion localization and functional deficits in MS is warranted.