Development and preliminary evaluation of a new anatomically based prosthetic alignment method for below-knee prosthesis.

Journal article


Tafti, Nahid, Karimlou, Masoud, Mardani, Mohammad Ali, Jafarpisheh, Amir Salar, Aminian, Gholam Reza and Safari, Reza 2018. Development and preliminary evaluation of a new anatomically based prosthetic alignment method for below-knee prosthesis. Assistive technology : the official journal of RESNA. https://doi.org/10.1080/10400435.2018.1467513
AuthorsTafti, Nahid, Karimlou, Masoud, Mardani, Mohammad Ali, Jafarpisheh, Amir Salar, Aminian, Gholam Reza and Safari, Reza
Abstract

The objectives of current study were to a) assess similarities and relationships between anatomical landmark-based angles and distances of lower limbs in unilateral transtibial amputees and b) develop and evaluate a new anatomically based static prosthetic alignment method. First sub-study assessed the anthropometrical differences and relationships between the lower limbs in the photographs taken from amputees. Data were analysed via paired t-test and regression analysis. Results show no significant differences in frontal and transverse planes. In the sagittal plane, the anthropometric parameters of the amputated limb were significantly correlated to the corresponding variables of the sound limb. The results served as bases for the development of a new prosthetic alignment method. The method was evaluated on a single subject study. Prosthetic alignment carried out by an experienced prosthetist was compared with such alignment adjusted by an inexperienced prosthetist but with the use of the developed method. In sagittal and frontal planes, the socket angle was tuned with respect to the shin angle, and the position of the prosthetic foot was tuned in relation to the pelvic landmarks. Further study is needed to assess the proposed method on a larger sample of amputees and prosthetists.

KeywordsAnatomical landmarks; Anthropometry; Prosthetic alignment; Transtibial prosthesis; Amputation
Year2018
JournalAssistive technology : the official journal of RESNA
PublisherTaylor & Francis
ISSN19493614
Digital Object Identifier (DOI)https://doi.org/10.1080/10400435.2018.1467513
Web address (URL)http://hdl.handle.net/10545/622736
hdl:10545/622736
Publication dates20 Apr 2018
Publication process dates
Deposited23 May 2018, 13:43
Accepted16 Apr 2018
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Archived with thanks to Assistive technology : the official journal of RESNA

ContributorsUniversity of Social Welfare and Rehabilitation Sciences, Islamic Azad University and University of Derby
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