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King ST, Eveld ME, Zelik KE, Goldfarb M. Factors leading to falls in transfemoral prosthesis users: a case series of prosthesis-side stumble recovery responses. J Neuroeng Rehabil 2024; 21:117. [PMID: 39003469 PMCID: PMC11245817 DOI: 10.1186/s12984-024-01402-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 06/11/2024] [Indexed: 07/15/2024] Open
Abstract
BACKGROUND Falls due to stumbling are prevalent for transfemoral prosthesis users and may lead to increased injury risk. This preliminary case series analyzes the transfemoral prosthesis user stumble recovery response to highlight key deficits in current commercially-available prostheses and proposes potential interventions to improve recovery outcomes. METHODS Six transfemoral prosthesis users were perturbed on their prosthetic limb at least three times while walking on a treadmill using obstacle perturbations in early, mid and late swing. Kinematic data were collected to characterize the response, while fall rate and key kinematic recovery metrics were used to assess the quality of recovery and highlight functional deficits in current commercially-available prostheses. RESULTS Across all participants, 13 (54%) of the 24 trials resulted in a fall (defined as > 50% body-weight support) with all but one participant (83%) falling at least once and two participants (33%) falling every time. In contrast, in a previous study of seven young, unimpaired, non-prosthesis users using the same experimental apparatus, no falls occurred across 190 trials. For the transfemoral prosthesis users, early swing had the highest rate of falling at 64%, followed by mid-swing at 57%, and then late swing at 33%. The trend in falls was mirrored by the kinematic recovery metrics (peak trunk angle, peak trunk angular velocity, forward reach of the perturbed limb, and knee angle at ground contact). In early swing all four metrics were deficient compared to non-prosthesis user controls. In mid swing, all but trunk angular velocity were deficient. In late swing only forward reach was deficient. CONCLUSION Based on the stumble recovery responses, four potential deficiencies were identified in the response of the knee prostheses: (1) insufficient resistance to stance knee flexion upon ground contact; (2) insufficient swing extension after a perturbation; (3) difficulty initiating swing flexion following a perturbation; and (4) excessive impedance against swing flexion in early swing preventing the potential utilization of the elevating strategy. Each of these issues can potentially be addressed by mechanical or mechatronic changes to prosthetic design to improve quality of recovery and reduce the likelihood a fall.
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Affiliation(s)
- Shane T King
- Department of Mechanical Engineering, Vanderbilt University, Nashville, USA.
| | - Maura E Eveld
- Department of Mechanical Engineering, Vanderbilt University, Nashville, USA
| | - Karl E Zelik
- Department of Mechanical Engineering, Vanderbilt University, Nashville, USA
- Department of Biomedical Engineering, Vanderbilt University, Nashville, USA
- Department of Physical Medicine and Rehabilitation, Vanderbilt University, Nashville, USA
| | - Michael Goldfarb
- Department of Mechanical Engineering, Vanderbilt University, Nashville, USA
- Department of Physical Medicine and Rehabilitation, Vanderbilt University, Nashville, USA
- Department of Electrical Engineering, Vanderbilt University, Nashville, USA
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2
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Tobaigy M, Hafner BJ, Hsieh K, Sawers A. Falls perceived as significant by lower limb prosthesis users are generally associated with fall consequences rather than circumstances. Disabil Rehabil 2024:1-7. [PMID: 38505985 DOI: 10.1080/09638288.2024.2328313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 03/02/2024] [Indexed: 03/21/2024]
Abstract
PURPOSE To determine if falls perceived as significant by lower limb prosthesis (LLP) users were associated with fall circumstances and/or consequences. MATERIALS AND METHODS The circumstances and consequences of LLP users' most significant fall in the past 12-months were collected using the Lower Limb Prosthesis User Fall Event Survey. Participants rated fall significance from 0 (not significant) to 10 (extremely significant), which was then dichotomized into "low" and "high". Binary logistic regression was used to assess associations between fall significance and fall circumstances and consequences. RESULTS Ninety-eight participants were included in the analysis. Five fall consequences were associated with greater significance: major injury (OR = 26.7, 95% CI: 1.6-459.6, p = 0.024), need to seek medical treatment (OR = 19.0, 95% CI: 1.1-329.8, p = 0.043), or allied-health treatment (OR = 18.2, 95% CI: 2.3-142.4, p = 0.006), decreased balance confidence (OR = 10.9, 95% CI: 2.4-49.3, p = 0.002), and increased fear of falling (OR = 7.5, 95% CI: 2.4-23.8, p = 0.001), compared to two fall circumstances: impact to the arm (OR = 5.0, 95% CI: 2.0-12.1, p = 0.001), and impact to the face, head, or neck (OR = 9.7, 95% CI: 1.2-77.4, p = 0.032). CONCLUSIONS Significant falls were generally more associated with fall consequence than fall circumstances.
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Affiliation(s)
- Moaz Tobaigy
- Department of Kinesiology, University of Illinois Chicago, Chicago, IL, USA
- Faculty of Medical Rehabilitation Science, King Abdulaziz University, Jeddah, KSA
| | - Brian J Hafner
- Department of Rehabilitation Medicine, University of Washington, Seattle, WA, USA
| | - Kelly Hsieh
- Department of Kinesiology, University of Illinois Chicago, Chicago, IL, USA
- Department of Disability and Human Development, University of Illinois Chicago, Chicago, IL, USA
| | - Andrew Sawers
- Department of Kinesiology, University of Illinois Chicago, Chicago, IL, USA
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Johansson R, Jensen L, Barnett CT, Rusaw DF. Quantitative methods used to evaluate balance, postural control, and the fear of falling in lower limb prosthesis users: A systematic review. Prosthet Orthot Int 2023; 47:586-598. [PMID: 37318276 DOI: 10.1097/pxr.0000000000000250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 04/23/2023] [Indexed: 06/16/2023]
Abstract
Problems with balance, postural control, and fear of falling are highly prevalent in lower limb prosthesis users, with much research conducted to understand these issues. The variety of tools used to assess these concepts presents a challenge when interpreting research outcomes. This systematic review aimed to provide a synthesis of quantifiable methods used in the evaluation of balance, postural control, and fear of falling in lower limb prosthesis users with an amputation level at or proximal to the ankle joint. A systematic search was conducted in CINAHL, Medline, AMED, Cochrane, AgeLine, Scopus, Web of Science, Proquest, PsycINFO, PsycArticles, and PubPsych databases followed by additional manual searching via reference lists in the reviewed articles databases. Included articles used quantitative measure of balance or postural control as one of the dependent variables, lower limb prosthesis users as a sample group, and were published in a peer-reviewed journal in English. Relevant assessment questions were created by the investigators to rate the assessment methods used in the individual studies. Descriptive and summary statistics are used to synthesize the results. The search yielded (n = 187) articles assessing balance or postural control (n = 5487 persons in total) and (n = 66) articles assessing fear of falling or balance confidence (n = 7325 persons in total). The most used test to measure balance was the Berg Balance Scale and the most used test to measure fear of falling was the Activities-specific Balance Confidence scale. A large number of studies did not present if the chosen methods were valid and reliable for the lower limb prosthesis users. Among study limitations, small sample size was common.
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Affiliation(s)
- Robin Johansson
- School of Health and Welfare, Jönköping University, Jönköping, Sweden
| | - Louise Jensen
- School of Health and Welfare, Jönköping University, Jönköping, Sweden
- Southern Älvsborg Hospital, Borås, Sweden
| | - Cleveland T Barnett
- School of Science and Technology, Nottingham Trent University, Nottingham, United Kingdom
| | - David F Rusaw
- School of Health and Welfare, Jönköping University, Jönköping, Sweden
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Palumbo P, Randi P, Moscato S, Davalli A, Chiari L. Degree of Safety Against Falls Provided by 4 Different Prosthetic Knee Types in People With Transfemoral Amputation: A Retrospective Observational Study. Phys Ther 2022; 102:6506313. [PMID: 35079822 PMCID: PMC8994512 DOI: 10.1093/ptj/pzab310] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 09/02/2021] [Accepted: 12/08/2021] [Indexed: 11/26/2022]
Abstract
OBJECTIVE People with transfemoral amputation have balance and mobility problems and are at high risk of falling. An adequate prosthetic prescription is essential to maximize their functional levels and enhance their quality of life. This study aimed to evaluate the degree of safety against falls offered by different prosthetic knees. METHODS A retrospective study was conducted using data from a center for prosthetic fitting and rehabilitation. Eligible individuals were adults with unilateral transfemoral amputation or knee disarticulation. The prosthetic knee models were grouped into 4 categories: locked knees, articulating mechanical knees (AMKs), fluid-controlled knees (FK), and microprocessor-controlled knees (MPK). The outcome was the number of falls experienced during inpatient rehabilitation while wearing the prosthesis. Association analyses were performed with mixed-effect Poisson models. Propensity score weighting was used to adjust causal estimates for participant confounding factors. RESULTS Data on 1486 hospitalizations of 815 individuals were analyzed. Most hospitalizations (77.4%) were related to individuals with amputation due to trauma. After propensity score weighting, the knee category was significantly associated with falls. People with FK had the highest rate of falling (incidence rate = 2.81 falls per 1000 patient days, 95% CI = 1.96 to 4.02). FK significantly increased the risk of falling compared with MPK (incidence rate ratio [IRRFK-MPK] = 2.44, 95% CI = 1.20 to 4.96). No other comparison among knee categories was significant. CONCLUSIONS Fluid-controlled prosthetic knees expose inpatients with transfemoral amputation to higher incidence of falling than MPK during rehabilitation training. IMPACT These findings can guide clinicians in the selection of safe prostheses and reduction of falls in people with transfemoral amputation during inpatient rehabilitation.
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Affiliation(s)
- Pierpaolo Palumbo
- Department of Electrical, Electronic, and Information Engineering “Guglielmo Marconi,” Alma Mater Studiorum University of Bologna, Bologna, Italy,Address all correspondence to Dr Palumbo at:
| | - Pericle Randi
- Unità operativa di medicina fisica e riabilitazione, INAIL Centro Protesti, Vigoroso di Budrio, Emilia-Romagna, Italy
| | - Serena Moscato
- Department of Electrical, Electronic, and Information Engineering “Guglielmo Marconi,” Alma Mater Studiorum University of Bologna, Bologna, Italy
| | - Angelo Davalli
- Area ricerca e formazione, INAIL Centro Protesti, Vigoroso di Budrio, Emilia-Romagna, Italy
| | - Lorenzo Chiari
- Department of Electrical, Electronic, and Information Engineering “Guglielmo Marconi,” Alma Mater Studiorum University of Bologna, Bologna, Italy,Health Sciences and Technologies, Interdepartmental Center for Industrial Research, Alma Mater Studiorum University of Bologna, Bologna, Italy
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Fiedler G, Schikorra A. A Brief Introduction to Game Theory and its Potential Implications for the Economics of Orthotics & Prosthetics. CANADIAN PROSTHETICS & ORTHOTICS JOURNAL 2021; 4:36661. [PMID: 37615008 PMCID: PMC10443513 DOI: 10.33137/cpoj.v4i2.36661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The economic viability of Orthotics & Prosthetics (O&P) service provision is an important concern for policy makers, patients, and practitioners. Against the background of limited funds that can be distributed for healthcare expenses overall, it is critical to identify the most cost-effective treatment options within and across disciplines, including surgical and pharmacological interventions. When those decisions are being negotiated, whether in the context of an individual case in the clinic or of general payer policies that allocate spending budgets, the O&P discipline is often perceived to be at a disadvantage due to its relatively young age, underdeveloped evidence base, and small economic clout as compared to other fields. Such asymmetrical negotiations have been the subject of economic theories and mathematical models, such as the "Game theory", work on which has been awarded with several Nobel Prizes and other recognitions across the years. In this paper, we are introducing core concepts of this theory and discuss how they may be applied in negotiations on treatment approaches and reimbursement schedules with the goal to improve outcomes for the O&P profession.
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Affiliation(s)
- G. Fiedler
- University of Pittsburgh, Department of Rehabilitation Science and Technology, Pittsburgh, USA
| | - A. Schikorra
- University of Pittsburgh, Department of Mathematics, Pittsburgh, USA
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Carse B, Scott H, Brady L, Colvin J. Evaluation of gait outcomes for individuals with established unilateral transfemoral amputation following the provision of microprocessor controlled knees in the context of a clinical service. Prosthet Orthot Int 2021; 45:254-261. [PMID: 34016870 DOI: 10.1097/pxr.0000000000000016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 02/25/2021] [Indexed: 02/03/2023]
Abstract
BACKGROUND Microprocessor controlled knees (MPKs) have been shown to improve gait outcomes for individuals with unilateral transfemoral amputation (TFA); however, previous studies have limitations, which may affect their applicability. OBJECTIVES To compare gait outcomes between non-MPK and MPK conditions within a large and diverse cohort of established TFAs in the pragmatic context of an operational clinical service and to identify any demographic variables that correlate with changes in gait outcomes. STUDY DESIGN This is a retrospective cohort study. METHODS Full-body three-dimensional motion capture and a portable breath gas analyser were used to evaluate gait-specific outcomes both pre-MPK and 6 months post-MPK provisions in TFAs (n = 32). The primary outcome measure was gait profile score, along with the following secondary outcome measures: walking velocity, step length, step length symmetry ratio, step time symmetry ratio, vertical ground reaction force symmetry index, base of support, center of mass deviation, and oxygen cost of walking. RESULTS Data showed statistically significant improvement in gait profile score from 11.2° ± 2.2° to 10.1° ± 2.1° (p < 0.01) between non-MPK and MPK conditions. Other outcomes which showed significant improvement were walking velocity (p < 0.01), step length (p < 0.01), vertical ground reaction force symmetry index (p < 0.01), and center of mass deviation (p < 0.05). CONCLUSIONS MPK provision offered significant gait improvements to this cohort of TFAs in an operational clinical setting. There still remains a large gap in gait outcomes between this cohort and those of healthy unimpaired adults. Improvements in socket design, prosthetic foot design, and physiotherapy intervention could further reduce this gap.
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Affiliation(s)
- Bruce Carse
- West of Scotland Rehabilitation and Mobility Centre, Queen Elizabeth University Hospital, NHS Greater Glasgow and Clyde, Glasgow, United Kingdom
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Hobusch GM, Döring K, Brånemark R, Windhager R. Advanced techniques in amputation surgery and prosthetic technology in the lower extremity. EFORT Open Rev 2020; 5:724-741. [PMID: 33204516 PMCID: PMC7608512 DOI: 10.1302/2058-5241.5.190070] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Bone-anchored implants give patients with unmanageable stump problems hope for drastic improvements in function and quality of life and are therefore increasingly considered a viable solution for lower-limb amputees and their orthopaedic surgeons, despite high infection rates.Regarding diversity and increasing numbers of implants worldwide, efforts are to be supported to arrange an international bone-anchored implant register to transparently overview pros and cons.Due to few, but high-quality, articles about the beneficial effects of targeted muscle innervation (TMR) and regenerative peripheral nerve interface (RPNI), these surgical techniques ought to be directly transferred into clinical protocols, observations and routines.Bionics of the lower extremity is an emerging cutting-edge technology. The main goal lies in the reduction of recognition and classification errors in changes of ambulant modes. Agonist-antagonist myoneuronal interfaces may be a most promising start in controlling of actively powered ankle joints.As advanced amputation surgical techniques are becoming part of clinical routine, the development of financing strategies besides medical strategies ought to be boosted, leading to cutting-edge technology at an affordable price.Microprocessor-controlled components are broadly available, and amputees do see benefits. Devices from different manufacturers differ in gait kinematics with huge inter-individual varieties between amputees that cannot be explained by age. Active microprocessor-controlled knees/ankles (A-MPK/As) might succeed in uneven ground-walking. Patients ought to be supported to receive appropriate prosthetic components to reach their everyday goals in a desirable way.Increased funding of research in the field of prosthetic technology could enhance more high-quality research in order to generate a high level of evidence and to identify individuals who can profit most from microprocessor-controlled prosthetic components. Cite this article: EFORT Open Rev 2020;5:724-741. DOI: 10.1302/2058-5241.5.190070.
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Affiliation(s)
- Gerhard M Hobusch
- Medical University of Vienna, Department of Orthopaedics and Trauma Surgery, Vienna, Austria
| | - Kevin Döring
- Medical University of Vienna, Department of Orthopaedics and Trauma Surgery, Vienna, Austria
| | - Rickard Brånemark
- Gothenburg University, Gothenburg, Sweden.,Biomechatronics Group, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Reinhard Windhager
- Medical University of Vienna, Department of Orthopaedics and Trauma Surgery, Vienna, Austria
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Burçak B, Kesikburun B, Köseoğlu BF, Öken Ö, Doğan A. Quality of life, body image, and mobility in lower-limb amputees using high-tech prostheses: A pragmatic trial. Ann Phys Rehabil Med 2020; 64:101405. [PMID: 32561506 DOI: 10.1016/j.rehab.2020.03.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 10/04/2019] [Accepted: 03/17/2020] [Indexed: 11/16/2022]
Abstract
BACKGROUND High-tech prostheses are supposed to achieve better functional recovery over mechanical-controlled prostheses in lower-limb amputees. However, quantitative data are insufficient. OBJECTIVE We aimed to evaluate changes in quality of life, life satisfaction, perception of body image, and functional performance of lower-limb amputees when using a mechanical-controlled prosthesis versus a microprocessor-controlled knee (MPK) or transtibial vacuum-assisted suspension system (VASS) prosthesis. METHODS In this pragmatic study, 57 lower-limb amputees were assessed with the Satisfaction with the Prosthesis Questionnaire (SATPRO), revised Amputee Body Image Scale (ABIS-R), Trinity Amputation and Prosthesis Experience Scales (TAPES), Medical Outcomes Study Short Form-36 (SF-36) and 6-min walk test (6MWT). All assessments were performed under 2 conditions (i.e., using a mechanical-controlled prosthesis vs. an MPK/VASS prosthesis. RESULTS Amputees who used an MPK/VASS prosthesis showed significant increases in all SF-36 subscale scores and all subscale scores of TAPES except adjustment to limitation (P=0.156). The amputees showed clinically relevant improvements in 6MWT (P<0.001) and in SATPRO and ABIS-R scores (P<0.001). CONCLUSION Lower-limb amputees using an MPK/VASS prosthesis had better life satisfaction, quality of life and functional performance than those using a mechanical-controlled prosthesis.
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Affiliation(s)
- Burcu Burçak
- Ministry of Health, Ankara Physical Medicine and Rehabilitation Training and Research Hospital, Department of Physical Medicine and Rehabilitation, Ankara, Turkey
| | - Bilge Kesikburun
- Ministry of Health, Ankara Physical Medicine and Rehabilitation Training and Research Hospital, Department of Physical Medicine and Rehabilitation, Ankara, Turkey.
| | - Belma Füsun Köseoğlu
- Ministry of Health, Ankara Physical Medicine and Rehabilitation Training and Research Hospital, Department of Physical Medicine and Rehabilitation, Ankara, Turkey
| | - Öznur Öken
- Ministry of Health, Ankara Physical Medicine and Rehabilitation Training and Research Hospital, Department of Physical Medicine and Rehabilitation, Ankara, Turkey
| | - Asuman Doğan
- Ministry of Health, Ankara Physical Medicine and Rehabilitation Training and Research Hospital, Department of Physical Medicine and Rehabilitation, Ankara, Turkey
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Şen Eİ, Aydın T, Buğdaycı D, Kesiktaş FN. Effects of microprocessor-controlled prosthetic knees on self-reported mobility, quality of life, and psychological states in patients with transfemoral amputations. ACTA ORTHOPAEDICA ET TRAUMATOLOGICA TURCICA 2020; 54:502-506. [PMID: 33155559 DOI: 10.5152/j.aott.2020.19269] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
OBJECTIVE This study aimed to determine the effects of the microprocessor-controlled prosthetic knee (MPK) joint on self-mobility, body perceptions, depression, and quality of life in patients with unilateral transfemoral amputations (TFAs). METHODS Thirty consecutive patients (28 males, mean age=38.5 years, age range=22-57) who had previously used non-MPKs and who were approved to use swing and stance phase-control MPKs were included in this 12-week clinical study. Before the MPK use and after the three-month follow-up, prosthetic use and locomotor capabilities were evaluated using the Houghton Scale and the Locomotor Capabilities Index (LCI-5), respectively. Body perception was assessed using the Amputee Body Image Scale (ABIS). The depressive symptoms and quality of life were evaluated using the Beck Depression Inventory (BDI) score and the 36-Item Short- Form Health Survey (SF-36), respectively. RESULTS After MPK use, statistically significant ameliorations were observed in all outcome measures. The basic and advanced LCI-5 increased from 26.7±2.2 and 24.8±5.2 to 27.6±1.2 (p=0.007) and 27±2.1 (p=0.004), respectively. Houghton scores improved from 9±1 to 10.3±0.8 (p=0.000). The ABIS and BDI scores decreased from 43.2±10.9 and 5.7±6.6 to 37.1±8.9 (p=0.000) and 3.8±4.5 (p=0.015), respectively. Also, the SF-36 physical function and vitality subscales increased from 71.2±24.0 and 75.5±14.6 to 85.6±16.6 (p=0.001) and 81.7±14.1 (p=0.015), respectively. CONCLUSION MPK use provides significant improvements in the locomotor capabilities, quality of life, and activities of daily living to patients with TFAs as well as improves their body image perceptions and depressive symptoms. LEVEL OF EVIDENCE Level III, Self controlled study.
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Affiliation(s)
- Ekin İlke Şen
- Department of Physical Medicine and Rehabilitation, İstanbul University, İstanbul School of Medicine, İstanbul, Turkey
| | - Tuğba Aydın
- Department of Physical Medicine and Rehabilitation İstanbul Physical Medicine and Rehabilitation Training and Research Hospital, İstanbul, Turkey
| | - Derya Buğdaycı
- Department of Physical Medicine and Rehabilitation İstanbul Physical Medicine and Rehabilitation Training and Research Hospital, İstanbul, Turkey
| | - Fatma Nur Kesiktaş
- Department of Physical Medicine and Rehabilitation İstanbul Physical Medicine and Rehabilitation Training and Research Hospital, İstanbul, Turkey
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Spaulding SE, Yamane A, McDonald CL, Spaulding SA. A conceptual framework for orthotic and prosthetic education. Prosthet Orthot Int 2019; 43:369-381. [PMID: 31199192 DOI: 10.1177/0309364619852455] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
BACKGROUND Variables that influence orthotic and prosthetic patient outcomes beyond direct care are poorly conceptualized for orthotic and prosthetic students. Restructuring educational curricula around important clinical reasoning variables (i.e. factors that may influence outcomes) could improve teaching, learning, and clinical practice. OBJECTIVES To propose an orthotic and prosthetic education framework to enhance the development of orthotic and prosthetic students' clinical reasoning skills. STUDY DESIGN Scoping review. METHODS We conducted a scoping review, identified variables of orthotic and prosthetic usability, and performed a qualitative thematic analysis through the lens of orthotic and prosthetic clinical educators to develop a conceptual framework for orthotic and prosthetic education. RESULTS Sorting of variables identified from the literature resulted in three thematic areas: (1) the state of functioning, disability, and health (International Classification of Functioning, Disability and Health); (2) orthotic and prosthetic technical properties, procedures, and appropriateness; and (3) professional service as part of orthotic and prosthetic interventions. The proposed orthotic and prosthetic education framework includes these three areas situated within the context of patient-centered care. CONCLUSIONS A conceptual framework was developed from variables identified in peer-reviewed literature. This orthotic and prosthetic education framework provides a structure to explore orthotic and prosthetic clinical reasoning and advance our teaching and assessment of students' clinical reasoning skills. CLINICAL RELEVANCE The proposed orthotic and prosthetic (O&P) education framework is intended to promote conversation about variables (e.g. health condition, procedures, services, and O&P principles) that influence O&P clinical practice outcomes and further advance our teaching and assessment of students' clinical reasoning skills.
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Affiliation(s)
- Susan E Spaulding
- 1 Department of Rehabilitation Medicine, University of Washington, Seattle, WA, USA
| | - Ann Yamane
- 1 Department of Rehabilitation Medicine, University of Washington, Seattle, WA, USA
| | - Cody L McDonald
- 1 Department of Rehabilitation Medicine, University of Washington, Seattle, WA, USA
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Möller S, Rusaw D, Hagberg K, Ramstrand N. Reduced cortical brain activity with the use of microprocessor-controlled prosthetic knees during walking. Prosthet Orthot Int 2019; 43:257-265. [PMID: 30375285 DOI: 10.1177/0309364618805260] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
BACKGROUND Individuals using a lower-limb prosthesis indicate that they need to concentrate on every step they take. Despite self-reports of increased cognitive demand, there is limited understanding of the link between cognitive processes and walking when using a lower-limb prosthesis. OBJECTIVE The objective was to assess cortical brain activity during level walking in individuals using different prosthetic knee components and compare them to healthy controls. It was hypothesized that the least activity would be observed in the healthy control group, followed by individuals using a microprocessor-controlled prosthetic knee and finally individuals using a non-microprocessor-controlled prosthetic knee. STUDY DESIGN Cross-sectional study. METHODS An optical brain imaging system was used to measure relative changes in concentration of oxygenated and de-oxygenated haemoglobin in the frontal and motor cortices during level walking. The number of steps and time to walk 10 m was also recorded. The 6-min walk test was assessed as a measure of functional capacity. RESULTS Individuals with a transfemoral or knee-disarticulation amputation, using non-microprocessor-controlled prosthetic knee ( n = 14) or microprocessor-controlled prosthetic knee ( n = 15) joints and healthy controls ( n = 16) participated in the study. A significant increase was observed in cortical brain activity of individuals walking with a non-microprocessor-controlled prosthetic knee when compared to healthy controls ( p < 0.05) and individuals walking with an microprocessor-controlled prosthetic knee joint ( p < 0.05). CONCLUSION Individuals walking with a non-microprocessor-controlled prosthetic knee demonstrated an increase in cortical brain activity compared to healthy individuals. Use of a microprocessor-controlled prosthetic knee was associated with less cortical brain activity than use of a non-microprocessor-controlled prosthetic knee. CLINICAL RELEVANCE Increased understanding of cognitive processes underlying walking when using different types of prosthetic knees can help to optimize selection of prosthetic components and provide an opportunity to enhance functioning with a prosthesis.
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Affiliation(s)
- Saffran Möller
- 1 School of Health and Welfare, Jonkoping University, Jonkoping, Sweden
| | - David Rusaw
- 1 School of Health and Welfare, Jonkoping University, Jonkoping, Sweden
| | - Kerstin Hagberg
- 2 Advanced Reconstruction of Extremities, Sahlgrenska University Hospital, Sweden and Department of Orthopaedics, Institute of Clinical Sciences; Sahlgrenska Academy, University of Gothenburg, Sweden
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