Frequent versus infrequent partial doffing in transtibial prosthesis users as a means to stabilize residual limb fluid volume

IF 1.4 3区医学 Q4 ENGINEERING, BIOMEDICAL

Clinical Biomechanics Pub Date : 2025-04-29 DOI:10.1016/j.clinbiomech.2025.106537

Conor L. Lanahan , Katheryn J. Allyn , Kendrick A. Coburn , Joseph C. Mertens , Adam J. Krout , Nicholas S. DeGrasse , Brian G. Larsen , Brian J. Hafner , Janna L. Friedly , Joan E. Sanders

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引用次数: 0

Abstract

Background

Daily residual limb fluid volume fluctuation is thought to be a driving factor behind prosthetic socket fit deterioration among people with lower limb amputation. Expanding the number and type of strategies available to manage daily residual limb fluid volume changes may improve socket fit.

Methods

To investigate the effects of partial-doff frequency on residual limb fluid volume, participants completed two controlled laboratory sessions that differed in the number of times participants sat and partially doffed their prosthesis. Transtibial prosthesis users were recruited, fitted with a custom limb fluid volume monitoring device and a socket release-relock mechanism, and asked to complete a series of low- and high-activity ambulation bouts that mimicked daily prosthesis use.

Findings

Mean limb fluid volume measures from the anterior compartment of the residual limb were significantly different between the one- and three-partial doff experimental protocols (−5.8 % and −2.1 % fluid volume, respectively, P < 0.01). The posterior compartment limb fluid volume, locking pin depth, locking pin magnitude of movement, anterior distal limb position depth, and anterior distal limb position total movement did not differ significantly between the two conditions.

Interpretation

Partial doffing may offer prosthesis users an alternative means to accommodate limb fluid volume changes. More frequent partial doffing appears to better mitigate limb fluid volume loss when compared to less frequent partial doffing.

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经胫骨假体使用者频繁与不频繁的局部脱布作为稳定残肢液量的一种手段

背景：每日残肢液量波动被认为是下肢截肢患者假肢窝配合度恶化的驱动因素。扩大可用于管理每日残肢液量变化的策略的数量和类型可能会改善窝配合度。方法为了研究部分脱下频率对残肢液量的影响，参与者完成了两个对照实验，实验中参与者坐下和部分脱下假肢的次数不同。招募经胫骨假体使用者，配备定制的肢体液体容量监测装置和套孔释放-再锁定机制，并要求完成一系列模仿日常假体使用的低活动和高活动的走动。结果：残肢前房室的平均肢体液量在一段和三段分离实验方案之间存在显著差异（液量分别为- 5.8%和- 2.1%）；0.01)。后腔室肢体液量、锁销深度、锁销运动幅度、前远端肢体位置深度和前远端肢体位置总运动在两种情况下无显著差异。部分脱针可以为义肢使用者提供另一种方法来适应肢体液体容量的变化。与不太频繁的部分落纱相比，更频繁的部分落纱似乎能更好地减轻肢体液体体积损失。

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来源期刊

Clinical Biomechanics 医学-工程：生物医学

CiteScore

3.30

自引率

5.60%

发文量

189

审稿时长

12.3 weeks

期刊介绍： Clinical Biomechanics is an international multidisciplinary journal of biomechanics with a focus on medical and clinical applications of new knowledge in the field. The science of biomechanics helps explain the causes of cell, tissue, organ and body system disorders, and supports clinicians in the diagnosis, prognosis and evaluation of treatment methods and technologies. Clinical Biomechanics aims to strengthen the links between laboratory and clinic by publishing cutting-edge biomechanics research which helps to explain the causes of injury and disease, and which provides evidence contributing to improved clinical management. A rigorous peer review system is employed and every attempt is made to process and publish top-quality papers promptly. Clinical Biomechanics explores all facets of body system, organ, tissue and cell biomechanics, with an emphasis on medical and clinical applications of the basic science aspects. The role of basic science is therefore recognized in a medical or clinical context. The readership of the journal closely reflects its multi-disciplinary contents, being a balance of scientists, engineers and clinicians. The contents are in the form of research papers, brief reports, review papers and correspondence, whilst special interest issues and supplements are published from time to time. Disciplines covered include biomechanics and mechanobiology at all scales, bioengineering and use of tissue engineering and biomaterials for clinical applications, biophysics, as well as biomechanical aspects of medical robotics, ergonomics, physical and occupational therapeutics and rehabilitation.