Clinical usability, reliability, and repeatability of noncontact scanners in measuring residual limb volume in persons with transtibial amputation

2021 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Rianne Kofman ◽  
Raoul E Winter ◽  
Cornelis H Emmelot ◽  
Jan HB Geertzen ◽  
Pieter U Dijkstra
Keyword(s):  
Residual Limb ◽  
Limb Volume ◽  
Transtibial Amputation

scholarly journals Self-reported prosthetic sock use among persons with transtibial amputation

2013 ◽  
Vol 38 (4) ◽  
pp. 321-331 ◽  
Author(s):  
Krittika D’Silva ◽  
Brian J Hafner ◽  
Katheryn J Allyn ◽  
Joan E Sanders
Keyword(s):  
Management Strategies ◽  
Limb Loss ◽  
Self Report ◽  
Diurnal Changes ◽  
Residual Limb ◽  
Limb Volume ◽  
Cross Sectional Survey ◽  
Cross Sectional ◽  
Transtibial Amputation ◽  
Prosthetic Socket

Background: Daily changes in the shape and size of the residual limb affect prosthetic socket fit. Prosthetic socks are often added or removed to manage changes in limb volume. Little has been published about how persons with transtibial amputations use socks to manage diurnal changes in volume and comfort. Objectives: To investigate prosthetic sock use with a customized, self-report questionnaire. Study design: Cross-sectional survey. Methods: Persons with transtibial amputation reported number, thickness, and timing of socks used over a 14-day period. Results: Data from 23 subjects (16 males and 7 females) were included. On average, socks were changed less than once per day (0.6/day) and ply increased over the day (4.8–5.5 ply). Subjects wore prostheses significantly longer (15.0–14.1 h, p = 0.02) and changed socks significantly more often (0.6/day–0.4/day, p = 0.03) on weekdays compared to weekends. Participants were also divided into two subgroups: those who used socks to manage limb volume and those who used socks for socket comfort. Sock use did not differ (p > 0.05) between subgroups. Conclusions: Sock changes are infrequent among persons with lower limb loss. Initial, verbal reports of sock use were often inconsistent with data measured by logs. Tools (e.g. sock logs or objective instruments) to better understand sock-use habits among persons with limb loss are needed. Clinical relevance Knowledge of prosthetic patients’ sock use may help practitioners enhance volume management strategies or troubleshoot fitting issues. Results showed that subjects generally added socks to account for volume loss, and end-of-day sock thickness frequently exceeded 5 ply. Use of sock logs in clinical practice may facilitate improved residual limb health.

scholarly journals Reduction of residual limb volume in people with transtibial amputation

2014 ◽  
Vol 51 (7) ◽  
pp. 1119-1126 ◽  
Author(s):  
Audrey T. Tantua ◽  
Jan H. B. Geertzen ◽  
Jan J. A. M. van den Dungen ◽  
Jan-Kees C. Breek ◽  
Pieter U. Dijkstra
Keyword(s):  
Residual Limb ◽  
Limb Volume ◽  
Transtibial Amputation

scholarly journals Residual limb volume fluctuations in transfemoral amputees

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Linda Paternò ◽  
Michele Ibrahimi ◽  
Elisa Rosini ◽  
Giuseppe Menfi ◽  
Vito Monaco ◽  
...  
Keyword(s):  
Physical Activity ◽  
Test Session ◽  
Testing Time ◽  
Residual Limb ◽  
Limb Volume ◽  
Volume Fluctuations ◽  
Exponential Trend ◽  
Prosthesis Removal ◽  
Transfemoral Amputees ◽  
Time Required

AbstractThis 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.

Three-dimensional printing in prosthetics: Method for managing rapid limb volume change

2020 ◽  
Vol 44 (5) ◽  
pp. 355-358 ◽  
Author(s):  
Eric Nickel ◽  
Kyle Barrons ◽  
Barry Hand ◽  
Alana Cataldo ◽  
Andrew Hansen
Keyword(s):  
Service Life ◽  
Three Dimensional ◽  
Residual Limb ◽  
Volume Loss ◽  
Limb Volume ◽  
Three Dimensional Printing ◽  
Body Mass Change ◽  
Prosthetic Socket ◽  
Test Distance ◽  
Gain Loss

Background and Aim: During post-amputation recovery or rapid body mass change, residual limb volume can change quickly, requiring frequent adjustments or replacement of the socket to maintain fit. The aim of this pilot test was to evaluate the feasibility of using a three-dimensional-printed insert to extend the service life of a prosthetic socket after substantial residual limb volume loss. Technique: One research subject with a well-fitting transtibial prosthetic socket had an oversized socket fabricated to simulate substantial limb volume loss. The digital shapes of the oversized and well-fitting sockets were used to create a three-dimensional-printed insert to restore fit. Discussion: Two-minute walk test distance decreased when using the oversized socket without the insert, but not when using the socket with the insert. Socket comfort score was 8+ under all conditions. These results suggest that three-dimensional-printed inserts may be an effective method of extending the service life of prosthetic sockets when rapid limb volume loss occurs. Clinical relevance Three-dimensional (3D) printing gives prosthetists a new tool to manage large volume changes without refabricating entire sockets. Sockets can be fabricated in anticipation of volume gain/loss, using replaceable 3D-printed inserts to maintain fit and comfort.

scholarly journals Transfemoral Residual Limb Volume Change Due to Physical Activity

2018 ◽  
pp. 146-150
Author(s):  
Linda Paternò ◽  
Michele Ibrahimi ◽  
Elisa Rosini ◽  
Arianna Menciassi ◽  
Leonardo Ricotti
Keyword(s):  
Physical Activity ◽  
Volume Change ◽  
Residual Limb ◽  
Limb Volume

Fluctuating residual limb volume accommodated with an adjustable, modular socket design: A novel case report

2016 ◽  
Vol 41 (5) ◽  
pp. 527-531 ◽  
Author(s):  
Kay Mitton ◽  
Jai Kulkarni ◽  
Kenneth William Dunn ◽  
Anthony Hoang Ung
Keyword(s):  
Case Report ◽  
Complex Regional Pain Syndrome ◽  
Patellofemoral Instability ◽  
Pain Syndrome ◽  
Successful Outcome ◽  
Residual Limb ◽  
Case Description ◽  
Limb Volume ◽  
Prosthetic Socket ◽  
Volume Fluctuations

Background: This novel case report describes the problems of prescribing a prosthetic socket in a left transfemoral amputee secondary to chronic patellofemoral instability compounded by complex regional pain syndrome. Case Description and Methods: Following the amputation, complex regional pain syndrome symptoms recurred in the residual limb, presenting mainly with oedema. Due to extreme daily volume fluctuations of the residual limb, a conventional, laminated thermoplastic socket fitting was not feasible. Findings and Outcomes: An adjustable, modular socket design was trialled. The residual limb volume fluctuations were accommodated within the socket. Amputee rehabilitation could be continued, and the rehabilitation goals were achieved. The patient was able to wear the prosthesis for 8 h daily and to walk unaided indoors and outdoors. Conclusion: An adjustable, modular socket design accommodated the daily residual limb volume fluctuations and provided a successful outcome in this case. It demonstrates the complexities of socket fitting and design with volume fluctuations. Clinical relevance Ongoing complex regional pain syndrome symptoms within the residual limb can lead to fitting difficulties in a conventional, laminated thermoplastic socket due to volume fluctuations. An adjustable, modular socket design can accommodate this and provide a successful outcome.

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