A Narrative Review of Stroke of Cortical Hand Knob Area

被引:0
|
作者
Rissardo, Jamir Pitton [1 ]
Byroju, Vishnu Vardhan [1 ]
Mukkamalla, Sushni [2 ]
Caprara, Ana Leticia Fornari [3 ]
机构
[1] Cooper Univ Hosp, Neurol Dept, Camden, NJ 08103 USA
[2] Rowan Univ, Cooper Med Sch, Camden, NJ 08103 USA
[3] Univ Fed Santa Maria, Med Dept, BR-97105900 Santa Maria, RS, Brazil
来源
MEDICINA-LITHUANIA | 2024年 / 60卷 / 02期
关键词
hand knob; hand paralysis; wrist drop; monoparesis; isolated hand paresis; hand motor cortex infarction; precentral gyrus; TRANSCRANIAL MAGNETIC STIMULATION; MOTOR CORTEX; REORGANIZATION; MONOPARESIS; INFARCTION; FINGER; PALSY; LOCALIZATION; PERFORMANCE; RECOVERY;
D O I
10.3390/medicina60020318
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
The cortical hand knob region of the brain is a knob-like segment of the precentral gyrus, projecting into the middle genu of the central sulcus. This anatomic landmark is responsible for intricate control of hand motor movements and has often been implicated in motor weakness following stroke. In some instances, damage to this area has been mistaken for peripheral causes of hand weakness. Our article aims to consolidate clinically relevant information on the cortical hand knob area in a comprehensive review to guide clinicians regarding diagnosis and treatment strategies. We conducted a systematic search within the Medline/PubMed database for reports of strokes in the cortical hand knob region. All studies were published electronically up until December 2023. The search was conducted using the keyword "hand knob". A total of 24 reports containing 150 patients were found. The mean and median ages were 65 and 67 years, respectively. Sixty-two percent of the individuals were male. According to the TOAST criteria for the classification of the stroke, 59 individuals had a stroke due to large-artery atherosclerosis, 8 had small-vessel occlusion, 20 had cardioembolism, 25 were determined, and 38 were undetermined. The most common etiologies for stroke in the hand knob area can be attributed to large vessel occlusions, small vessel occlusions, or cardioembolism. Presentations following damage to this area can mimic ulnar, median, or radial neuropathy as well. Our comprehensive review serves as a resource for recognizing and managing stroke in the cortical hand knob area.
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页数:17
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