Evidence map›Paper›PMID 40202401›Full record

Observational studyProsthetics and orthotics international2025

Evaluation of activity and function before and immediately after the provision of a microprocessor knee in individuals with transfemoral amputation.

Silvia Caggiari, Tim Randell, Chantel Ostler, Alex Dickinson, Peter Worsley

Abstract readMulticenter StudyObservational Study
In one paragraph

Observational study in Prosthetics and orthotics international, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
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

2 citing papers in PubMed.

  1. Trial
  2. 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

5 authors.

Silvia CaggiariSkin Sensing Research Group, School of Health Sciences, University of Southampton, Southampton, United Kingdom.ORCID 0000-0002-8928-2141
Tim RandellThe Dorset Prosthetic Centre, Royal Bournemouth Hospital, Bournemouth, United Kingdom.ORCID 0000-0002-0054-3537
Chantel OstlerPortsmouth Enablement Centre, Portsmouth Hospitals NHS Trust, St Marys Community Health Campus, Portsmouth, United Kingdom.
Alex DickinsonPeople Powered Prosthetics Research Group, University of Southampton, Southampton, United Kingdom.
Peter WorsleySkin Sensing Research Group, School of Health Sciences, University of Southampton, Southampton, United Kingdom.

Funding

Engineering and Physical Sciences Research Council EP/R014213/1
6 · The paper itself

Abstract

backgroundIn many cases, individuals with lower limb amputation become less active because of impaired balance and stability and increased risk of falling. Microprocessor knees (MPKs) have been shown to reduce the risk of falls, improve balance, and increase function, evaluated with self-reported scales and questionnaires. This study aims at investigating whether the patient-reported improvements are reflected in objective physical activity (PA) parameters estimated from actimetry sensors and assess the short-term provision of an MPK. STUDY

designTransfemoral amputee patients (n=29) undertaking an MPK trial at 2 prosthetic centers in the South of England were recruited for this study. Self-reported and functional test outcomes (Activities Balance Confidence, Reintegration of Normal Living Index, Prosthesis Evaluation Questionnaire scores, and 2-min walk test) were obtained before and after (4 weeks) the provision of the MPK. Activity levels were recorded over 7 consecutive days pre- and post-MPK.

resultsSelf-reported scores and function test outcomes showed a general improvement in most of the patients after the provision of the MPK, with a statistically significant change ( p < 0.05) in Activities Balance Confidence, Reintegration of Normal Living Index, Prosthesis Evaluation Questionnaire scores, and 2-min walk test. By contrast, the activity-based parameters estimated from actimetry showed no statistically significant changes ( p > 0.05). Associations between self-reported and functional outcomes and actimetry parameters were limited.

conclusionsPerceived and in-clinic outcome measures improved after short-term provision of an MPK for transfemoral amputees. However, PA did not change in this cohort of patients over the study period. More longitudinal studies are needed to characterize the impact of MPK provision on PA and societal participation.

Indexed as

Amputation, SurgicalAmputeesArtificial LimbsExerciseKnee ProsthesisMicrocomputersActivities of Daily LivingAdultAgedCase-Control StudiesFemaleFemurHumansMaleMiddle AgedPostural Balanceactivity monitorfunctionlower limb amputationmicroprocessor kneesmobilityphysical activity

Identifiers

PMID40202401
PMCPMC12329806

What Socratic 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 Socratic graph.