Comparison of Ischial Containment and Subischial Sockets Effect on Gait Biomechanics in People With Transfemoral Amputation: A Randomized Crossover Trial |
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| Institution: | 1. Northwestern University, Department of Physical Medicine and Rehabilitation, Feinberg School of Medicine, Chicago, Illinois;2. Research and Development Office, Jesse Brown VA Medical Center, Chicago, Illinois;3. Hanger Clinic, Austin, Texas;4. Northwestern University, Department of Biomedical Engineering, McCormick School of Engineering, Evanston, Illinois, United States;1. Western Norway University of Applied Sciences, Bergen, Norway;2. IMEC IDLab, University of Antwerp, Antwerp, Belgium;3. The University of Lincoln, UK;4. Faculty of Medicine and Rehabilitation Sciences, MOVANT, University of Antwerp, Antwerp, Belgium;5. Faculty of Sciences, Hasselt University, Diepenbeek, Belgium;6. Faculty of Rehabilitation Sciences, BIOMED/REVAL, Hasselt University, Diepenbeek, and Jessa Hospital, Heart Centre Hasselt, Hasselt, Belgium;1. Faculty of Medicine and Health, Children''s Hospital at Westmead Clinical School, University of Sydney, Sydney, Australia;2. Kids Rehab, the Children''s Hospital at Westmead, Westmead NSW, Australia;3. Cerebral Palsy Alliance, Discipline of Child and Adolescent Health, The University of Sydney, Sydney, Australia;4. Child Population and Translational Health, the Children''s Hospital at Westmead Clinical School, Faculty of Medicine and Health, University of Sydney, Sydney, Australia;1. Master Program in Long-Term Care, College of Nursing, Taipei Medical University, Taipei, Taiwan;2. Department of Occupational Therapy, School of Health Professions, University of Texas Medical Branch, Galveston, TX;3. Institute of Education, National Cheng Kung University, Tainan, Taiwan;4. School of Occupational Therapy, College of Medicine, National Taiwan University, Taipei, Taiwan;5. Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital, Taipei, Taiwan;6. Department of Occupational Therapy, College of Medicine, I-Shou University, Kaohsiung, Taiwan;8. Institute of Long-Term Care, MacKay Medical College, New Taipei City, Taiwan;9. School of Medicine, Chung Shan Medical University, Taichung, Taiwan;10. Department of Physical Medicine and Rehabilitation, Chung Shan Medical University Hospital, Taichung, Taiwan;11. Department of Occupational Therapy, College of Medical and Health Science, Asia University, Taichung, Taiwan;1. Department of Physical Therapy, Universidade Estadual Paulista “Julio de Mesquita Filho” (UNESP), Presidente Prudente, Brazil;2. Department of Neurology and Neurosurgery, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil;3. Department of Physical Therapy, Centro Universitario de Ensino Superior (UNICESUMAR), Maringá, Brazil;4. Department of Psychobiology, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil;5. Department of Physical Therapy, Centro Universitário UNA, Contagem, Brazil;6. Department of Physical Therapy, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil.;1. Department of Rehabilitation Medicine, University of Washington, Seattle, Washington;2. Department of Neurology, University of Washington, Seattle, Washington;1. Nursing Department, Faculty of School of Life and Health Sciences, Jerusalem College of Technology, Lev Academic Center, Givat Mordechai, Jerusalem;2. Cheryl Spencer Department of Nursing, Faculty of Social Welfare and Health Sciences, University of Haifa, Mount Carmel, Haifa;3. Faculty of Medicine, Clalit Health Services, Technion, Haifa;4. Department of Occupational Therapy, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel. |
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| Abstract: | ObjectiveTo compare gait biomechanics of the Northwestern University Flexible Sub-Ischial Vacuum (NU-FlexSIV) Socket to the ischial containment (IC) socket.DesignRandomized crossover trial with 2, 7-week periods.SettingPrivate prosthetic clinics and university research laboratory.ParticipantsA total of 30 enrolled (n=30); 25 participants completed the study with full (n=18) or partial data (n=7).InterventionsTwo custom-fabricated sockets (IC and NU-FlexSIV), worn full-time for 7 weeks, with testing at 1, 4, and 7 weeks after socket delivery.Main Outcome MeasuresGait analyses were conducted at 1, 4, and 7 weeks post socket delivery. Differences between sockets in selected gait variables related to hip motion and coronal plane socket stability were assessed.ResultsFor participants with data for both sockets at week 7 (n=19), there were no significant differences in any gait variables between sockets at self-selected normal walking speed. However, when all participants and all study time points were assessed (n=25), there was a significant main effect of socket (P=.013), with prosthetic side sagittal plane hip range of motion being significantly greater for the NU-FlexSIV Socket at self-selected normal walking speed. There were no other significant effects.ConclusionsThe results suggest that, compared to the IC socket, the NU-FlexSIV Socket did not alter gait biomechanics related to hip motion and coronal plane socket stability in people with unilateral transfemoral amputation. |
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