TY - JOUR
T1 - Residual limb volume fluctuations in transfemoral amputees
AU - Paternò, Linda
AU - Ibrahimi, Michele
AU - Rosini, Elisa
AU - Menfi, Giuseppe
AU - Monaco, Vito
AU - Gruppioni, Emanuele
AU - Ricotti, Leonardo
AU - Menciassi, Arianna
N1 - Funding Information:
This work was supported by INAIL, the Italian National Institute for Insurance against Work-related Injuries (non-commercial entity), within the PR19-PAI-P2-MOTU++ (Protesi robotica di arto inferiore con smart socket ed interfaccia bidirezionale per amputati di arto inferiore: personalizzazione mediante human-in-the-loop optimization”) and the PPRAI-MOTU (Protesi robotica di Arto Inferiore con sMart sOcket ed inTerfaccia bidirezi-onale per ampUtati di arto inferiore) project framework (www.repair-lab.it/en/motu). INAIL-affiliated author participated in the scientific review and approval of the study scope and objectives, as well as final manuscript review, and an INAIL facility (Centro Protesi, Budrio, Bologna) served as a site of amputee enrollment.
Publisher Copyright:
© 2021, The Author(s).
PY - 2021/12
Y1 - 2021/12
N2 - This study constitutes the first attempt to systematically quantify residual limb volume fluctuations in transfemoral amputees. The study was carried out on 24 amputees to investigate variations due to prosthesis doffing, physical activity, and testing time. A proper experimental set-up was designed, including a 3D optical scanner to improve precision and acceptability by amputees. The first test session aimed at measuring residual limb volume at 7 time-points, with 10 min intervals, after prosthesis doffing. This allowed for evaluating the time required for volume stabilization after prosthesis removal, for each amputee. In subsequent sessions, 16 residual limb scans in a day for each amputee were captured to evaluate volume fluctuations due to prosthesis removal and physical activity, in two times per day (morning and afternoon). These measurements were repeated in three different days, a week apart from each other, for a total of 48 scans for each amputee. Volume fluctuations over time after prosthesis doffing showed a two-term decay exponential trend (R2 = 0.97), with the highest variation in the initial 10 min and an average stabilization time of 30 min. A statistically significant increase in residual limb volume following both prosthesis removal and physical activity was verified. No differences were observed between measures collected in the morning and in the afternoon. Clinical Trials.gov ID: NCT04709367.
AB - This study constitutes the first attempt to systematically quantify residual limb volume fluctuations in transfemoral amputees. The study was carried out on 24 amputees to investigate variations due to prosthesis doffing, physical activity, and testing time. A proper experimental set-up was designed, including a 3D optical scanner to improve precision and acceptability by amputees. The first test session aimed at measuring residual limb volume at 7 time-points, with 10 min intervals, after prosthesis doffing. This allowed for evaluating the time required for volume stabilization after prosthesis removal, for each amputee. In subsequent sessions, 16 residual limb scans in a day for each amputee were captured to evaluate volume fluctuations due to prosthesis removal and physical activity, in two times per day (morning and afternoon). These measurements were repeated in three different days, a week apart from each other, for a total of 48 scans for each amputee. Volume fluctuations over time after prosthesis doffing showed a two-term decay exponential trend (R2 = 0.97), with the highest variation in the initial 10 min and an average stabilization time of 30 min. A statistically significant increase in residual limb volume following both prosthesis removal and physical activity was verified. No differences were observed between measures collected in the morning and in the afternoon. Clinical Trials.gov ID: NCT04709367.
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U2 - 10.1038/s41598-021-91647-9
DO - 10.1038/s41598-021-91647-9
M3 - Article
AN - SCOPUS:85107590302
VL - 11
JO - Scientific Reports
JF - Scientific Reports
SN - 2045-2322
IS - 1
M1 - 12273
ER -