Focal dystonia: Difference between revisions
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== Introduction<br> == | == Introduction<br> == | ||
Dystonia is defined as an involuntary contraction of the agonistic and antagonistic muscles, which can lead to repetitive involuntary movements and/or abnormal positions. The affected population includes individuals who require repetitive movements on their regular daily life; one of the most affected populations are the musicians and professional writers <ref name="Aranguiz et al. (2011)">Aranguiz, R., Chana-Cuevas, P., Alburquerque, D., &amp; Leon, M. (2011). Focal dystonia in musicians. Neurologia, 26(1), 45-52. doi: 10.1016/j.nrl.2010.09.019</ref>. In the European and American population Focal dystonia varies its prevalence between 3 and 29.5 per 100.000 inhabitants <ref name="Aranguiz et al. (2011)" /><ref name="Defazio et al. (2004)">Defazio, G., Abbruzzese, G., Livrea, P., & Berardelli, A. (2004). Epidemiology of primary dystonia. Lancet Neurol, 3(11), 673-678. doi: 10.1016/s1474-4422(04)00907-x</ref>. Inside musicians dystonia it is estimated that of all musicans, 0.5 % to 1% suffer from some form of focal dystonia <ref name="Aranguiz et al. (2011)" /><ref name="Jabusch et al. (2005)">Jabusch, H. C., Zschucke, D., Schmidt, A., Schuele, S., & Altenmuller, E. (2005). Focal dystonia in musicians: treatment strategies and long-term outcome in 144 patients. Mov Disord, 20(12), 1623-1626. doi: 10.1002/mds.20631</ref> | Dystonia is defined as an involuntary contraction of the agonistic and antagonistic muscles, which can lead to repetitive involuntary movements and/or abnormal positions, most common in the hand (known as Focal Hand Dystonia). The affected population includes individuals who require repetitive movements on their regular daily life; one of the most affected populations are the musicians and professional writers <ref name="Aranguiz et al. (2011)">Aranguiz, R., Chana-Cuevas, P., Alburquerque, D., &amp;amp; Leon, M. (2011). Focal dystonia in musicians. Neurologia, 26(1), 45-52. doi: 10.1016/j.nrl.2010.09.019</ref>. In the European and American population Focal dystonia varies its prevalence between 3 and 29.5 per 100.000 inhabitants <ref name="Aranguiz et al. (2011)" /><ref name="Defazio et al. (2004)">Defazio, G., Abbruzzese, G., Livrea, P., &amp; Berardelli, A. (2004). Epidemiology of primary dystonia. Lancet Neurol, 3(11), 673-678. doi: 10.1016/s1474-4422(04)00907-x</ref>. Inside musicians dystonia it is estimated that of all musicans, 0.5 % to 1% suffer from some form of focal dystonia <ref name="Aranguiz et al. (2011)" /><ref name="Jabusch et al. (2005)">Jabusch, H. C., Zschucke, D., Schmidt, A., Schuele, S., &amp; Altenmuller, E. (2005). Focal dystonia in musicians: treatment strategies and long-term outcome in 144 patients. Mov Disord, 20(12), 1623-1626. doi: 10.1002/mds.20631</ref>. This figures are highly variables if we individualize each case, depending on the instrument and the effort required on each performance; for instance the difference between a rhythm and a soloist guitar player. | ||
== Mechanism of Injury / Pathological Process<br> == | == Mechanism of Injury / Pathological Process<br> == | ||
< | Although the pathological process of Focal Dystonia is still classified as idiopathic, increasing evidence suggested a multifactorial etiology (e.g. <ref name="Byl et al. (2009)">Byl, N. N., Archer, E. S., & McKenzie, A. (2009). Focal hand dystonia: effectiveness of a home program of fitness and learning-based sensorimotor and memory training. J Hand Ther, 22(2), 183-197; quiz 198. doi: 10.1016/j.jht.2008.12.003</ref> interaction between genetic, neuromuscular, auditory, neural adaptative, anatomic, stressful, repetitive, psychosocial, traumatic, among others). | ||
== Clinical Presentation == | == Clinical Presentation == | ||
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== Management / Interventions<br> == | == Management / Interventions<br> == | ||
Botulin Toxin | |||
== Differential Diagnosis<br> == | == Differential Diagnosis<br> == | ||
Revision as of 01:58, 19 January 2014
Original Editor - Carlos Areia
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Keywords: Focal dystonia - physiotherapy
Introduction
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Dystonia is defined as an involuntary contraction of the agonistic and antagonistic muscles, which can lead to repetitive involuntary movements and/or abnormal positions, most common in the hand (known as Focal Hand Dystonia). The affected population includes individuals who require repetitive movements on their regular daily life; one of the most affected populations are the musicians and professional writers [1]. In the European and American population Focal dystonia varies its prevalence between 3 and 29.5 per 100.000 inhabitants [1][2]. Inside musicians dystonia it is estimated that of all musicans, 0.5 % to 1% suffer from some form of focal dystonia [1][3]. This figures are highly variables if we individualize each case, depending on the instrument and the effort required on each performance; for instance the difference between a rhythm and a soloist guitar player.
Mechanism of Injury / Pathological Process
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Although the pathological process of Focal Dystonia is still classified as idiopathic, increasing evidence suggested a multifactorial etiology (e.g. [4] interaction between genetic, neuromuscular, auditory, neural adaptative, anatomic, stressful, repetitive, psychosocial, traumatic, among others).
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Botulin Toxin
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- ↑ 1.0 1.1 1.2 Aranguiz, R., Chana-Cuevas, P., Alburquerque, D., &amp; Leon, M. (2011). Focal dystonia in musicians. Neurologia, 26(1), 45-52. doi: 10.1016/j.nrl.2010.09.019
- ↑ Defazio, G., Abbruzzese, G., Livrea, P., & Berardelli, A. (2004). Epidemiology of primary dystonia. Lancet Neurol, 3(11), 673-678. doi: 10.1016/s1474-4422(04)00907-x
- ↑ Jabusch, H. C., Zschucke, D., Schmidt, A., Schuele, S., & Altenmuller, E. (2005). Focal dystonia in musicians: treatment strategies and long-term outcome in 144 patients. Mov Disord, 20(12), 1623-1626. doi: 10.1002/mds.20631
- ↑ Byl, N. N., Archer, E. S., & McKenzie, A. (2009). Focal hand dystonia: effectiveness of a home program of fitness and learning-based sensorimotor and memory training. J Hand Ther, 22(2), 183-197; quiz 198. doi: 10.1016/j.jht.2008.12.003
