Microprocessor prosthetic ankles: comparative biomechanical evaluation of people with transtibial traumatic amputation during standing on level ground and slope.
Article dans une revue avec comité de lecture
Date
2019Journal
Disability and Rehabilitation: Assistive TechnologyAbstract
Background: The compensations occurrence due to the alteration of the posture and the gait of persons with lower limb amputation is still an issue in prosthetic fitting. Recently, prosthetic feet designed to reproduce the physiological behaviour of the ankle using a microprocessor control have been commer- cialized to address this issue. Objectives: Investigate the relevance of these microprocessor prosthetic ankles (MPAs) in the ability of standing on both level and inclined surfaces. Methods: Six persons with transtibial amputation usually fitted with energy storing and returning (ESR) foot tested three MPAs: ElanV R Endolite (MPA1), MeridiumV Ossur (MPA3). Each MPA data acquisition was preceded of a 2 weeks adaptation period at home and followed by a 3- weeks wash-out period with their ESR. Lower limb angular position and moment, Centre of Pressure (CoP) position, Ground Reaction Forces (GRF) and functional scores were collected in static, on level ground and 12% inclined slope. Results: MPAs allowed a better posture and a reduction of residual knee moment on positive and/or negative slope compared to ESR. Results also reflect that the MPA2 allows the best control of the CoP in all situations. Conclusions: An increased ankle mobility is associated with a better posture and balance on slope. Gait analysis would complete these outcomes. Clinical relevance: This study compares three MPAs to ESR analysing static posture. Static analysis on level ground and slope represents the challenging conditions people with amputation have to cope with in their daily life, especially outdoors. Having a better understanding of the three MPAs behaviour could help to adequately fit the prosthesis to each patient.
Files in this item
Related items
Showing items related by title, author, creator and subject.
-
Article dans une revue avec comité de lectureDAVOT, Julie; THOMAS-POHL, Marie; VILLA, Coralie; BONNET, Xavier; LAPEYRE, Eric; BASCOU, Joseph; PILLET, Helene (SAGE Publications, 2021)In case of transtibial amputation, the deficit resulting from the loss of the lower limb can be partly compensated with a prosthetic foot and adapted rehabilitation. New prosthetic feet have been developed for transtibial ...
-
Article dans une revue avec comité de lectureDREVELLE, Xavier; BONNET, Xavier; VILLA, Coralie; MARTINET, Noël; SAURET, Christophe; BASCOU, Joseph; LOIRET, Isabelle; DJIAN, Francis; RAPIN, Nathalie; MILLE, Jacky; THOREUX, Patricia; FODÉ, Pascal; PAYSANT, Jean; GUÉRIT, Philippe; LAVASTE, François; PILLET, Helene (Elsevier BV, 2014)Today, the prevalence of major amputation in France can be estimated between 90,000 and 100,000 and the incidence is about 8300 new amputations per year (according to French National Authority for Health estimation). This ...
-
Article dans une revue avec comité de lectureFACIONE, Julia; VILLA, Coralie; BONNET, Xavier; BARREY, Cédric; THOMAS-POHL, Marie; LAPEYRE, Eric; LAVASTE, François; SKALLI, Wafa; PILLET, Helene (Springer Verlag, 2019)This study aims to describe the spinopelvic sagittal alignment in transfemoral amputees (TFAs) from a radiologic study of the spine with a postural approach to better understand the high prevalence of low back pain (LBP) ...
-
Article dans une revue avec comité de lectureVILLA, Coralie; DAURIAC, Boris; BASCOU, Joseph; BONNET, Xavier; FODÉ, Pascale; PILLET, Helene (Taylor & Francis, 2015)Unilateral transtibial amputation impairs locomotion, especially in daily living outdoor situations. As an example, slope ascent requires specific gait adjustments such as hip power generation during single support ...
-
Article dans une revue avec comité de lectureLOIRET, Isabelle; VILLA, Coralie; DAURIAC, Boris; BONNET, Xavier; MARTINET, Noël; PAYSANT, Jean; PILLET, Helene (SAGE Publications, 2019)Background: Amputee gait is known to be asymmetrical, especially during loading of the lower limb. Monitoring asymmetry could be useful in quantifying patient performance during rehabilitation. Wearable insoles can provide ...