UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000058683
Receipt number R000067101
Scientific Title The effect of electric ankle support using a walking aid device on knee joint movement during the standing phase after TKA surgery
Date of disclosure of the study information 2025/08/04
Last modified on 2025/08/03 21:47:04

* This page includes information on clinical trials registered in UMIN clinical trial registed system.
* We don't aim to advertise certain products or treatments


Basic information

Public title

The effect of robotic ankle electric assistance on knee joint movement during the standing phase after total knee arthroplasty

Acronym

The effect of ankle electric assistance on knee joint movement after total knee arthroplasty

Scientific Title

The effect of electric ankle support using a walking aid device on knee joint movement during the standing phase after TKA surgery

Scientific Title:Acronym

The effect of ankle electric assistance on knee joint movement after TKA surgery

Region

Japan


Condition

Condition

Post-TKA patients

Classification by specialty

Rehabilitation medicine

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To clarify the effect of electric ankle support using a walking aid device on knee joint movement during the stance phase after TKA surgery

Basic objectives2

Safety,Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Knee extension angle during stance phase(change in knee extension angle before and after stepping)

Key secondary outcomes

Lower limb joint movement (ankle joint angle during and before/after exercise, and knee joint angle during exercise), pain, knee joint range of motion, knee joint extension strength, walking speed, Time and Up Go Test, basic information (age, gender, BMI, number of days after surgery at the time of measurement)


Base

Study type

Interventional


Study design

Basic design

Cross-over

Randomization

Randomized

Randomization unit

Individual

Blinding

Open -no one is blinded

Control

Active

Stratification


Dynamic allocation


Institution consideration

Institution is not considered as adjustment factor.

Blocking


Concealment

Pseudo-randomization


Intervention

No. of arms

2

Purpose of intervention

Treatment

Type of intervention

Device,equipment

Interventions/Control_1

Lower limb flexion and extension movement with walking aid ON
Washout
Lower limb flexion and extension movement with walking aid OFF

Interventions/Control_2

Lower limb flexion and extension movement with walking aid OFF
Washout
Lower limb flexion and extension movement with walking aid ON

Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit


Not applicable

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

Those who have undergone artificial knee replacement surgery at our hospital and have been prescribed physical therapy
Those with restricted knee extension while standing
Those with normal ADL prior to injury and a J or A level of independence in daily living for elderly people with disabilities
Those without dementia and a level of independence in daily living for elderly people with dementia of 1 or 2
Those who were able to walk independently or with a cane prior to surgery

Key exclusion criteria

Those with a history of cerebrovascular disease, degenerative disease, or other diseases that affect lower limb function
Those whose discharge was delayed due to postoperative complications or weight-bearing restrictions
Those who did not consent to participate in the study
Those for whom continuous evaluation and measurement was difficult

Target sample size

20


Research contact person

Name of lead principal investigator

1st name satoshi
Middle name
Last name uchida

Organization

chugoku roisai hospital

Division name

central rehabilitation department

Zip code

737-0193

Address

1-5-1 Hirotaga, Kure City, Hiroshima

TEL

0823-72-7171

Email

ireha@chugokuh.johas.go.jp


Public contact

Name of contact person

1st name satoshi
Middle name
Last name uchida

Organization

chugoku roisai hospital

Division name

central rehabilitation department

Zip code

737-0193

Address

1-5-1 Hirotaga, Kure City, Hiroshima

TEL

0823-72-7171

Homepage URL


Email

ireha@chugokuh.johas.go.jp


Sponsor or person

Institute

other

Institute

Department

Personal name



Funding Source

Organization

other

Organization

Division

Category of Funding Organization

Other

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

chugoku roisai hospital

Address

1-5-1 Hirotaga, Kure City, Hiroshima

Tel

0823-72-7171

Email

ireha@chugokuh.johas.go.jp


Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions



Other administrative information

Date of disclosure of the study information

2025 Year 08 Month 04 Day


Related information

URL releasing protocol


Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled


Results


Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Preinitiation

Date of protocol fixation

2025 Year 08 Month 04 Day

Date of IRB


Anticipated trial start date

2025 Year 08 Month 11 Day

Last follow-up date

2029 Year 03 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2025 Year 08 Month 03 Day

Last modified on

2025 Year 08 Month 03 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000067101