LeDoux Mark S, Xiao Jianfeng
Veracity Neuroscience LLC, Memphis, Tennessee, USA.
University of Memphis, Memphis, Tennessee, USA.
Tremor Other Hyperkinet Mov (N Y). 2021 Oct 29;11:45. doi: 10.5334/tohm.659. eCollection 2021.
Palmaris brevis syndrome, a pseudodystonia characterized by abnormal involuntary contractions of the palmaris brevis muscle which resides in the hypothenar eminence, is believed to be due to compressive irritation of motor fibers which arise from the superficial branch of the ulnar nerve.
Herein, we review the origins, differential diagnosis and pathophysiology of the palmaris brevis syndrome, and effective treatment of a patient with workplace modifications and injections of botulinum toxin type A.
Prompt diagnosis of the palmaris brevis syndrome facilitates effective treatment and resolution.
Like the task-specific hand dystonias seen in writers and musicians, palmaris brevis syndrome, a pseudodystonia, may be caused and aggravated by extreme repetitive use. Here, we report a case of palmaris brevis syndrome apparently triggered by high-volume use of a pipette and computer mouse and review relevant clinical facets from previously published cases. Treatment must include workplace modifications and may include injections of botulinum toxin.
掌短肌综合征是一种假性肌张力障碍，其特征为位于小鱼际隆起处的掌短肌出现异常的不自主收缩，据信这是由于尺神经浅支发出的运动纤维受到压迫性刺激所致。
在此，我们回顾掌短肌综合征的起源、鉴别诊断和病理生理学，并介绍一名通过工作场所调整和注射A型肉毒杆菌毒素得到有效治疗的患者情况。
掌短肌综合征的及时诊断有助于有效治疗和康复。
与作家和音乐家出现的特定任务性手部肌张力障碍一样，掌短肌综合征这种假性肌张力障碍可能由极端重复性使用导致并加重。在此，我们报告一例明显由大量使用移液器和电脑鼠标引发的掌短肌综合征病例，并回顾先前已发表病例的相关临床方面。治疗必须包括工作场所调整，可能还包括注射肉毒杆菌毒素。
