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Requirements for adequate prosthetic limbs have now become urgent to improve amputee\u2019s quality of life. This study aims to understand how socket design parameters related to geometry can influence pressure distribution in the residual limb. A finite element model was developed to simulate the mechanical loading applied on the residual limb of a below-knee amputee while walking. A sensitivity analysis to socket initial geometry, scaling the socket downward in the horizontal plane, was performed. Recordings include stress levels on the skin and in the residual limb deep soft tissues. Peak stress was reduced by up to 51% with a limited reduction of the socket size. More important scale reduction of the residual limb would lead to possible negative effects, such as stress concentrations in sensitive areas. This result confirms the interest of the prosthetist to develop a well-fitting socket, possibly a little smaller than the residual limb itself, in order to avoid residual limb mobility in the socket that could cause friction and stress concentrations. Non-homogeneous geometrical reductions of the socket should be further investigated.<\/jats:p>","DOI":"10.1177\/0954411920921648","type":"journal-article","created":{"date-parts":[[2020,5,30]],"date-time":"2020-05-30T08:24:20Z","timestamp":1590827060000},"page":"761-768","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":7,"title":["Influence of the scale reduction in designing sockets for trans-tibial amputees"],"prefix":"10.1177","volume":"234","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7177-7672","authenticated-orcid":false,"given":"Nawfal","family":"Dakhil","sequence":"first","affiliation":[{"name":"Aix-Marseille Univ, Univ Gustave Eiffel, LBA, Marseille, France"},{"name":"Technical Institute of Dewaniya, Al-Furat Al-Awsat Technical University, Kufa, Iraq"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tristan","family":"Tarrade","sequence":"additional","affiliation":[{"name":"Aix-Marseille Univ, Univ Gustave Eiffel, LBA, Marseille, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michel","family":"Behr","sequence":"additional","affiliation":[{"name":"Aix-Marseille Univ, Univ Gustave Eiffel, LBA, Marseille, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fuhao","family":"Mo","sequence":"additional","affiliation":[{"name":"College of Mechanical and Vehicle Engineering, Hunan University, Changsha, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Morgane","family":"Evin","sequence":"additional","affiliation":[{"name":"Aix-Marseille Univ, Univ Gustave Eiffel, LBA, Marseille, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Laurent","family":"Thefenne","sequence":"additional","affiliation":[{"name":"Service de M\u00e9decine Physique et R\u00e9adaptation, H\u00f4pital Laveran, Marseille, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tang","family":"Liu","sequence":"additional","affiliation":[{"name":"The Second Xiangya Hospital, Central South University, Changsha, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maxime","family":"Llari","sequence":"additional","affiliation":[{"name":"Aix-Marseille Univ, Univ Gustave Eiffel, LBA, Marseille, France"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2020,5,30]]},"reference":[{"key":"bibr1-0954411920921648","first-page":"45","volume-title":"2015 IEEE global humanitarian technology conference (GHTC)","author":"Marino M"},{"key":"bibr2-0954411920921648","doi-asserted-by":"publisher","DOI":"10.1016\/j.apmr.2007.11.005"},{"key":"bibr3-0954411920921648","doi-asserted-by":"crossref","unstructured":"Mauffrey C, Hak D. 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