Visual feedback training for movement recovery in patients who have had a knee replacement

ISRCTN ISRCTN53840608
DOI https://doi.org/10.1186/ISRCTN53840608
Submission date
01/12/2022
Registration date
06/12/2022
Last edited
29/12/2023
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Surgery
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Background and study aims
For patients with severe knee osteoarthritis (OA), which affects about one in ten people over the age of 50 years, total knee replacement (TKR) surgery is an effective treatment. TKR is one of the most common replacement surgeries with about 650 thousand surgeries done in the USA every year. Patients usually complain of persistent pain and subsequent mobility reduction, either at night or at weight bearing, not relieved after 6 months of conservative treatments. Indeed, the main outcome of TKR is to relieve pain and improve knee function in people with severe symptoms and end-stage radiographic disease. The aim of this study is to evaluate the effects of visual feedback training on motor recovery in patients after TKR.

Who can participate?
Patients with severe OA who underwent motor rehabilitation after TKR

What does the study involve?
Participants are randomly allocated to one of two groups. The intervention group undergo advanced motor rehabilitation with an innovative and user-friendly visual feedback system through a detailed and objective kinematic gait analysis. There are 20-min sessions, 2 per day for 5 days a week, for 6 consecutive weeks. This treatment is combined with an additional 40 min of conventional therapy on the same days. The control group receive only conventional treatment (1-h session, 2 per day for 5 days a week, for 6 consecutive weeks)

What are the possible benefits and risks of participating?
This kind of intervention is without risk and could improve motor functions as well as pain.

Where is the study run from?
Institute S'Anna (Italy)

When is the study starting and how long is it expected to run for?
February 2019 to June 2022

Who is funding the study?
Investigator initiated and funded

Who is the main contact?
Dr Andre De Meco, andreademeco@hotmail.it

Contact information

Dr Andrea De meco
Public

Via Siris 11
Kroton
88900
Italy

ORCiD logoORCID ID 0000-0001-5419-4275
Phone +39 (0)962 23973
Email a.demeco@isakr.it

Study information

Study designSingle-center interventional randomized controlled trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)GP practice
Study typeTreatment
Scientific titleEfficacy of visual feedback training for motor recovery in post-operative subjects with knee replacement: a randomized controlled trial
Study objectivesThis randomized controlled study is aimed at evaluating the effects of visual feedback training protocol on motor recovery in postoperative patients with total knee replacement (TKR) compared with a standard rehabilitation. To the best of the researchers' knowledge, this is the first study applying this kind of rehabilitation approach (integrating VFB) on patients after TKR, using gait analysis as an objective measurement of clinical recovery.
Ethics approval(s)Approved 20/07/2019, Ethical Committee of the Regione Calabria (Viale Europa - 88100 Catanzaro, Italy; +39 (0)961 3694097; protocollo@cert.unicz.it), ref: 169
Health condition(s) or problem(s) studiedPain and knee function after total knee replacement (TKR) surgery
InterventionParticipants were randomly assigned to two groups using a computer-generated randomization code.

The experimental group underwent a visual feedback (VFB) rehabilitation plan of 20-min sessions, 2 per day for 5 days a week, for 6 consecutive weeks. This treatment was combined with an additional 40 min of conventional therapy on the same days. The VBF plan was made using Walker View 3.0 SCX and ProKin 252 (Tecnobody, Bergamo, Italy), respectively, for gait training and balance training. Walker View 3.0 SCX is a sensorized treadmill with a 3D camera that provides an immediate and objective dynamic image of the patient's posture during training, the load of the lower limbs, the range of movement (ROM) of the requested joint, and the bending of the front, back, and side. ProKin 252 is an electro-pneumatic platform that, after an initial assessment phase, proposes a series of exercises that can be performed in mono or bi-podalic mode with biofeedback of joint ROM and the center of pressure. These tools include a series of rehabilitation games to keep up the patient's concentration and improve compliance with the therapy.

The control group received only the conventional treatment (1-h session, 2/day for 5 days a week, for 6 consecutive weeks). The standard care rehabilitation for TKR included exercises for: a) ice/compression therapy; b) isometric contraction of operated leg mus­cles (especially in the first phase of the rehabilitation plan); c) moderate muscular resistance training with a progressive load placed at the calf; d) active/passive knee joint mobilization with a physiotherapist's assistance to enhance knee range of motion. When the patients were able to bear weight, they began gait and balance training in order to gradually become independent of the crutches.
Intervention typeBehavioural
Primary outcome measureWalking performance assessed using the well-validated G-WALK wearable system (BTS S.p.A. - Italy) measured at baseline and after treatment (lasting 6 weeks).
Secondary outcome measuresMeasured at baseline and after treatment (lasting 6 weeks):
1. Pain measured using the Numeric Rating Scale (NRS-11)
2. Activities of daily living following surgery assessed using the Barthel Index (BI)
Overall study start date01/02/2019
Completion date01/06/2022

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit55 Years
Upper age limit80 Years
SexBoth
Target number of participants96
Total final enrolment40
Key inclusion criteria1. 55-80 years old
2. Unilateral TKR
3. Maximum time from surgery 40 days
Key exclusion criteria1. Inflammatory disease after TKR
2. Any neurological, musculoskeletal, or other conditions affecting movement
Date of first enrolment01/09/2019
Date of final enrolment31/12/2021

Locations

Countries of recruitment

  • Italy

Study participating centre

S’Anna Institute
Via Siris 11
Crotone
88900
Italy

Sponsor information

Institute S'Anna
Hospital/treatment centre

Via Siris, 11
Kroton
88900
Italy

Phone +39 (0)962 23973
Email info@istitutosantanna.it
Website https://www.istitutosantanna.it/

Funders

Funder type

Other

Investigator initiated and funded

No information available

Results and Publications

Intention to publish date01/12/2022
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryStored in publicly available repository
Publication and dissemination planPlanned publication in a high-impact peer-reviewed journal
IPD sharing planThe datasets generated during and/or analysed during the current study will be stored in a publicly available repository (FigShare) at https://www.istitutosantanna.it/
The type of data stored: demographic data, clinical assessments and kinematic analysis.
The process for requesting access (if non-publicly available): Direct e-mail to our administrative office (info@istitutosantanna.it)
Dates of availability: After scientific publication.
Whether consent from participants was required and obtained: Yes
Comments on data anonymization: Following GDPR criteria and national guidelines (https://www.garanteprivacy.it/home/docweb/-/docweb-display/docweb/1671330) , all clinical information stored at S’Anna Institute underwent health data anonymization processing by using validated and implemented archiving systems.
Any ethical or legal restrictions: No
Any additional comments: No

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article 11/12/2022 29/12/2023 Yes No

Editorial Notes

29/12/2023: Publication reference added.
06/12/2022: Trial's existence confirmed by Regione Calabria