Evidence map›Paper›PMID 33435553›Full record

ArticleSensors (Basel, Switzerland)2021

A Prosthetic Socket with Active Volume Compensation for Amputated Lower Limb.

Ji-Hyeon Seo, Hyuk-Jin Lee, Dong-Wook Seo, Dong-Kyu Lee, Oh-Won Kwon, Moon-Kyu Kwak, Kang-Ho Lee

Open access · goldAbstract read
In one paragraph

Article in Sensors (Basel, Switzerland), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
1.4field-weighted citation impact, top 21% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 46 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. A biofidelic mock residual limb for prosthetic socket testing.Canadian prosthetics & orthotics journal · 2025
    Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Review
  9. Article
  10. Review
  11. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 1 country.

Ji-Hyeon SeoDaegu Research Center for Medical Devices, Korea Institute of Machinery and Materials, Daegu 42994, Korea.
Hyuk-Jin LeeDaegu Research Center for Medical Devices, Korea Institute of Machinery and Materials, Daegu 42994, Korea.
Dong-Wook SeoDepartment of Radio Communication Engineering/Interdisciplinary Major of Maritime AI Convergence, Korea Maritime and Ocean University, Busan 49112, Korea.ORCID 0000-0001-9449-7772
Dong-Kyu LeeDaegu Research Center for Medical Devices, Korea Institute of Machinery and Materials, Daegu 42994, Korea.ORCID 0000-0002-1156-5168
Oh-Won KwonDaegu Research Center for Medical Devices, Korea Institute of Machinery and Materials, Daegu 42994, Korea.ORCID 0000-0001-9830-9943
Moon-Kyu KwakSchool of Mechanical Engineering, College of Engineering, Kyungpook National University, Daegu 41566, Korea.
Kang-Ho LeeDaegu Research Center for Medical Devices, Korea Institute of Machinery and Materials, Daegu 42994, Korea.
Korea Institute of Machinery & Materials · KRKyungpook National University · KRKorea Maritime and Ocean University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Typically, the actual volume of the residual limb changes over time. This causes the prosthesis to not fit, and then pain and skin disease. In this study, a prosthetic socket was developed to compensate for the volume change of the residual limb. Using an inflatable air bladder, the proposed socket monitors the pressure in the socket and keeps the pressure distribution uniform and constant while walking. The socket has three air bladders on anterior and posterior tibia areas, a latching type 3-way pneumatic valve and a portable control device. In the paper, the mechanical properties of the air bladder were investigated, and the electromagnetic analysis was performed to design the pneumatic valve. The controller is based on a hysteresis control algorithm with a closed loop, which keeps the pressure in the socket close to the initial set point over a long period of time. In experiments, the proposed prosthesis was tested through the gait simulator that can imitate a human's gait cycle. The active volume compensation of the socket was successfully verified during repetitive gait cycle using the weight loads of 50, 70, and 90 kg and the residual limb model with a variety of volumes. It was confirmed that the pressure of the residual limb recovered to the initial state through the active control. The pressure inside the socket had a steady state error of less than 0.75% even if the volume of the residual limb was changed from -7% to +7%.

Indexed as

Amputation StumpsArtificial LimbsHumansLower ExtremityProsthesis DesignTibia3-way pneumatic valveactive controlair bladderair flowlower limb prosthesisprosthetic socketvolume compensation

Identifiers

PMID33435553
PMCPMC7827594
OpenAlexW3119303882

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.