Kinematic and kinetic assessment of upper limb movements in patients with writer's cramp

被引:6
|
作者
Delrobaei, Mehdi [1 ]
Rahimi, Fariborz [2 ]
Jackman, Mallory E. [3 ]
Atashzar, S. Farokh [4 ]
Shahbazi, Mahya [4 ]
Patel, Rajni [4 ,5 ]
Jog, Mandar [6 ,7 ]
机构
[1] KN Toosi Univ Technol, Fac Elect & Comp Engn, Tehran 19697, Iran
[2] Bonab Univ, Dept Elect & Comp Engn, Bonab, East Azerbaijan, Iran
[3] Univ Western Ontario, Dept Clin Neurol Sci, London, ON, Canada
[4] Univ Western Ontario, Canadian Surg Technol & Adv Robot, Dept Elect & Comp Engn, London, ON, Canada
[5] Univ Western Ontario, Dept Surg, London, ON N6A 3K7, Canada
[6] Univ Western Ontario, Lawson Hlth Res Inst, London, ON, Canada
[7] Univ Western Ontario, Dept Clin Neurol Sci, London, ON, Canada
基金
加拿大自然科学与工程研究理事会;
关键词
Writer's cramp; Focal hand dystonia; Kinetic assessment; kinematic assessment; Abnormal motor movements; TRANSCRANIAL MAGNETIC STIMULATION; FOCAL HAND DYSTONIA; BOTULINUM-TOXIN; FORCES;
D O I
10.1186/s12984-016-0122-0
中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
Background: The assessment and treatment of writer's cramp is complicated due to the variations in the forces and angles of involved joints. Additionally, in some cases compensatory movements for cramp relief further complicates assessment. Currently these variables are subjectively measured with clinical scales and visual assessments. This subjectivity makes it difficult to successfully administer interventions such as Botulinum toxin injection or orthotics resulting in poor efficacy and significant side effects. Method: A multi-sensor system was used to record finger and wrist forces along with deviation angles at the wrist, elbow and shoulder while 9 patients with writer's cramp performed a series of standardized tasks on surfaces inclined at different angles. Clinical, kinetic, and kinematic information regarding cramping was collected. Results: First, four tasks appeared to best predict cramp occurrence. Second, unique biomechanical profiles emerged for patients regarding force, angles and cramp severity. Third, cluster analyses using these features showed a clear separation of patients into two severity classes. Finally, a relationship between severity and kinetic-kinematic information suggested that primary cramping versus compensatory movements could be potentially inferred. Conclusions: The results demonstrate that using a set of standardized tasks and objective measures, individual profiles for arm movements and applied forces associated with writer's cramp can be generated. The clinician can then accurately target the biomechanics specifically, whether it is with injection or other rehabilitative measures, fulfilling an important unmet need in the treatment of writer's cramp.
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收藏
页数:10
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