Runner's dystonia

Wu, Lung‐Sheng; Jankovic, Joseph

doi:10.1016/j.jns.2006.09.003

Cited by 71 publications

(65 citation statements)

References 27 publications

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“…19,41 The patient had similar features to these cases, including (1) task specificity of the movement dysfunction, (2) long history of running with first onset of symptoms during running, (3) inconsistent orthopaedic examination (muscle performance, coordination, joint mobility, and fractionation testing not consistent with the observed gait pattern), (4) negative basic neurological examination, and (5) absence of pain. In addition, dynamic EMG demonstrated sustained and excessive muscular activation patterns common to task-specific dystonia.…”

Section: Diagnosismentioning

confidence: 77%

“…12,41 Task-specific dystonias have been associated with repetitive tasks, including sport-and instrument-specific activities that are prone to overuse and overpractice. 1 Increasing trends in running participation and high-mileage events may result in the right circumstances for increased observation of runner's dystonia.…”

Section: Discussion Dmentioning

confidence: 99%

“…5,10,40 It has been suggested that runner's dystonia is a form of task-specific dystonia, with onset during running making this form distinct from other task-specific dystonias. 41 Currently, the diagnosis of task-specific dystonia is based on exclusion of competing diagnoses, yet technological advancements show promise in making a more direct diagnosis of dystonia. 38 In the case presented here, inconsistent orthopaedic and basic neurological examination findings relative to the gait dysfunction led to suspicion of dystonia as the cause of the patient's gait impairment.…”

Section: Clinical Examination Considerationsmentioning

confidence: 99%

“…The distinguishing feature of runner's dystonia from other task-specific dystonias is that the individual first develops symptoms during running. 41 Although the overall prevalence of runner's dystonia is unknown, isolated population estimates of primary focal dystonia in the United States are 295 per million persons. 27 Available data from the same population provide a relative appreciation of the prevalence of focal dystonia compared to more commonly known movement-related disorders such as Parkinson's disease (1569 per million), amyotrophic lateral sclerosis (64 per million), and convulsive disorders (6500 per million).…”

mentioning

confidence: 99%

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Diagnosis of Primary Task-Specific Lower Extremity Dystonia in a Runner

McClinton¹,

Heiderscheit²

2012

J Orthop Sports Phys Ther

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Section: Diagnosismentioning

confidence: 77%

Section: Discussion Dmentioning

confidence: 99%

Section: Clinical Examination Considerationsmentioning

confidence: 99%

mentioning

confidence: 99%

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Diagnosis of Primary Task-Specific Lower Extremity Dystonia in a Runner

McClinton¹,

Heiderscheit²

2012

J Orthop Sports Phys Ther

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“…Nowadays, it is classified into focal and action-specific dystonia [3]. Action-specific (commonly called task-specific) dystonia includes typist's cramp [4], musician's cramp [5] and some other sport-related dystonia [6,7,8,9]. The prevalence of writer's cramp has been reported as being between 16.3 and 68.9 per million [10,11].…”

Section: Introductionmentioning

confidence: 99%

Stereotactic Neurosurgery for Writer's Cramp: Report of Two Cases with an Overview of the Literature

Asahi

Koh

Kashiwazaki

et al. 2014

Stereotact Funct Neurosurg

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Background: Writer's cramp is a specific movement disorder with hand muscle cramps in writing, being classified into focal and action-specific dystonia. Stereotactic surgery, such as thalamotomy and deep brain stimulation (DBS), has been reported for writer's cramp; however, the number of reported cases is still scarce and surgical procedures are also controversial. Objectives: In this study, therefore, we present 2 patients who underwent thalamotomy for writer's cramp and systematically review the literature on stereotactic surgery for writer's cramp. Methods: Case reports and literature review are presented. Results: Both patients underwent ventral oral nucleus (Vo) thalamotomy safely. Their symptoms completely disappeared after surgery and did not recur during follow-up periods. In the literature, a total of 31 cases were surgically treated for writer's cramp. Stereotactic surgery included thalamotomy in 25 cases and DBS in 6. The target included the Vo in 17 cases, the ventral intermediate nucleus (Vim) in 3, and both Vo and Vim in 7. Both procedures markedly improved or resolved the symptoms. Transient neurological deficits were observed in 16.0% of patients after thalamotomy. Conclusions: The Vo may be the most effective target to treat writer's cramp. Both thalamotomy and DBS are feasible and effective, but thalamotomy would be a better option, especially in younger or high-risk patients.

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Subtraction Brain SPECT Imaging in a Patient With Paroxysmal Exercise-Induced Dystonia

Yoon

Lee²,

Yoon

2007

Arch Neurol

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Background: Paroxysmal exercise-induced dystonia is a rare hyperkinetic disease characterized by episodic dystonic attacks after prolonged exercise. However, its pathophysiological and anatomical basis are poorly understood. Objective: To explore the exact anatomical location responsible for paroxysmal exercise-induced dystonia by conducting ictal-interictal single-photon emission computed tomography subtraction, which was coregistered to the patient's own magnetic resonance image. Design: This is a case report of a 16-year-old boy who developed a right foot dystonic attack following prolonged exercise. Result: Subtraction single-photon emission computed tomographic imaging showed significantly increased cerebral perfusion in the medial aspect of the postcentral gyrus and mildly increased perfusion in the primary motor area and cerebellum during an attack of foot dystonia. Conclusions: The primary somatosensory cortex may be a relevant structure in paroxysmal exercise-induced dystonia. Paroxysmal exercise-induced dystonia may result from defective processing of sensory information.

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Runner's dystonia

Cited by 71 publications

References 27 publications

Diagnosis of Primary Task-Specific Lower Extremity Dystonia in a Runner

Diagnosis of Primary Task-Specific Lower Extremity Dystonia in a Runner

Stereotactic Neurosurgery for Writer's Cramp: Report of Two Cases with an Overview of the Literature

Subtraction Brain SPECT Imaging in a Patient With Paroxysmal Exercise-Induced Dystonia

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