| چکیده انگلیسی مقاله |
Background and Objectives: Cerebral palsy (CP) is the most prevalent motor disability during childhood, characterized by a range of movement and posture disorders that result in activity limitations. In children with CP, abnormal walking patterns are observed due to spasticity and contractures in the lower limb muscles. Also, an excessive flexion gait pattern of the knee presents in 66% of spastic diplegic CP children aged from 5 to 21 years. Accordingly, reducing excessive knee flexion during walking may decrease secondary compensations and enhance walking performance and quality of life. This study aims to design and evaluate a novel dynamic orthosis along with its impact on functional parameters of walking and occupation performance in a child with spastic diplegia CP.
Methods: This research was a fundamental and applied study of the design and fabrication. The study plan is a single subject, interaction design, conducted in two stages and implemented as A-B-BC-A. After the initial orthosis design, a second and final iteration was developed to address the limitations observed in the preliminary design. The study participant included an 8-year-old boy with spastic diplegic CP, classified as level II (according to the gross motor function classification system expanded and revised), exhibiting a crouch gait pattern. Functional variables, such as speed, balance in walking, spasticity, and occupation performance, were assessed in the study phases.
Results: The advantages and disadvantages of the final design were identified. Changes were made regarding manufacturing in less time, the ability to adjust the circumferential measures, ease of wearing and removing, and issues related to toileting. In comparing the baseline with intervention phases one and two regarding balance, the intervention demonstrated effectiveness (paroxysmal nocturnal dyspnea [PND] = 70%). According to PND values, functional speed in the second intervention phase showed significant results (PND = 75%). The hamstring muscle spasticity graph analysis during intervention phases exhibited a reduction of 1 or 2 units. The occupational performance score and satisfaction with the child's performance increased significantly after the intervention phases.
Conclusion: According to the mechanism of dynamic movement orthoses, as long as they are worn during the day, they are effective in modulating the tonicity of spastic muscles by exerting pressure on hypertonic muscles. This modulation improves balance, movement speed, and overall task performance. Consequently, these findings suggest that dynamic orthotic interventions may enhance functional outcomes and occupational performance, and satisfaction in children with spastic diplegic CP. |
| نویسندگان مقاله |
صدیقه سادات میرباقری | Sedigheh Sadat Mirbagheri
Department of Orthotic and Prosthetic, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran.
گروه ارتوز و پروتز، دانشگاه علوم توانبخشی و سلامت اجتماعی، تهران، ایران.
غلامرضا امینیان | Gholamreza Aminian
Department of Orthotic and Prosthetic, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran.
گروه ارتوز و پروتز، دانشگاه علوم توانبخشی و سلامت اجتماعی، تهران، ایران.
محمود بهرامی زاده | Mahmood Bahramizade
Department of Orthotic and Prosthetic, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran.
گروه ارتوز و پروتز، دانشگاه علوم توانبخشی و سلامت اجتماعی، تهران، ایران.
حمید دالوند | Hamid Dalvand
Department Of Occupational Therapy, School of Rehabilitation, Tehran University, Tehran, Iran
گروه کاردرمانی، دانشکده توانبخشی، دانشگاه تهران، تهران، ایران.
فرزام فرهمند | Farzam Farahmand
Department of Mechanical Engineering, Sharif University of Technology, Tehran, Iran.
گروه مکانیک، دانشگاه صنعتی شریف، تهران، ایران.
محسن واحدی | Mohsen Vahedi
Department of Biostatistics and Epidemiology, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran.
گروه آمار زیستی، دانشگاه علوم توانبخشی و سلامت اجتماعی، تهران، ایران.
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