Key result
Precentral sulcus cortical infarction causes isolated hand palsy with two distinct finger paralysis patterns.
Why the study?
The precise localization of the cortical motor hand area and the patterns of finger paralysis due to cortical infarction causing isolated hand palsy were unclear.
Case Report (n=5)
This study maps the cortical motor hand area to the middle to lower portion of the anterior wall of the central sulcus based on infarct localization.
May guide localization of isolated hand palsy in stroke; leaves open validation in larger cohorts.
The authors investigated the lesions and symptoms of five patients who presented with monoparesis of an upper limb due to cortical infarction. The location of the cortical motor hand area seems to be in the middle to lower portion of the anterior wall of the central sulcus. Severity of finger paralysis associated with impairment of this area varied in different fingers and occurred in two patterns: one variant predominantly affected the radial side, and the other predominantly affected the ulnar side.
No takes yet. Share an insight, caveat, or question.
Takahashi et al. (2002) conducted a case report in Monoparesis of an upper limb due to cortical infarction (n=5). Cortical infarction was evaluated on Localization of the cortical motor hand area and patterns of finger paralysis. Cortical infarction in the middle to lower portion of the anterior wall of the central sulcus caused isolated hand palsy with two distinct patterns of finger paralysis.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: