Effects of Virtual Reality Rehabilitation in Patients With Total Knee Arthroplasty
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ClinicalTrials.gov Identifier: NCT02413996 |
Recruitment Status :
Completed
First Posted : April 10, 2015
Results First Posted : January 9, 2020
Last Update Posted : January 9, 2020
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Condition or disease | Intervention/treatment | Phase |
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Total Knee Replacement Virtual Reality Therapy Osteoarthritis Knee Arthroplasty Rehabilitation | Device: Kinetec® knee continuous passive motion (CPM ) Behavioral: Functional activities Other: VRRS rehabilitation Other: traditional rehabilitation | Not Applicable |
Following ethics approval by the Ospedale San Raffaele, 84 adults aged between 45 and 80 years old will be recruited for the study, excluding people with unstable serious disease (e.g., heart or lung disease), previous orthopedics pathologies on the same side (e.g., hip arthroprosthesis), pregnancy and intake of psychotropic drugs.
Patients who consent to participate in this study will be randomized into two rehabilitation groups after TKA: experimental (virtual rehabilitation) and control (traditional rehabilitation). In the experimental arm, subjects will undergo a virtual rehabilitation training during the post-surgical rehabilitation period, in addition to passive knee range of motion device (kinetec) and functional activity (stairs). In the control arm, subjects with similar demographic characteristics to those of the experimental arm, will undergo the usual physiotherapy rehabilitation, in addition to passive knee range of motion device (kinetec) and functional activity (stairs). Both control and study interventions will be provided 60 minute daily session.
General status of patients will be undertaken for the following outcomes at the baseline and 10 days after surgery (at discharge).
The primary outcome will be the visual analogue scale (VAS); the secondary outcomes will be: the disability knee assessed by the Western Ontario and McMaster Universities (WOMAC), the health related quality of life assessed by the EuroQol (EQ-5D), the global perceived effect assessed by the GPE score, the functional Independent measure assessed by the FIM questionnaire, the drugs assumption, the isometric strength of quadriceps and hamstrings assessed by dynamometer, the range of motion (R.O.M.) and proprioception assessed by VRRS.
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 85 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Intervention Model Description: | A phase III randomized clinical trial was approved by the San Raffaele Hospital's Ethic Committee of Milan (31/03/2014) |
Masking: | Double (Investigator, Outcomes Assessor) |
Primary Purpose: | Treatment |
Official Title: | Effects of Virtual Reality Rehabilitation in Patients With Total Knee Arthroplasty: A Randomised Controlled Trial |
Study Start Date : | September 2014 |
Actual Primary Completion Date : | May 5, 2018 |
Actual Study Completion Date : | May 25, 2018 |

Arm | Intervention/treatment |
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Experimental: VRRS rehabilitation
exercise therapy through a virtual reality rehabilitation system (VRRS) in addition to a knee continuous passive motion device ( Kinetec® continuous passive motion ( CPM )) and functional activities (e.g.,stairs, walking)
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Device: Kinetec® knee continuous passive motion (CPM )
CPM of the knee Behavioral: Functional activities Stairs, walking Other: VRRS rehabilitation exercise therapy through a virtual reality rehabilitation system (VRRS) |
Active Comparator: traditional rehabilitation
exercise therapy through a traditional rehabilitation training in addition to a knee continuous passive motion device ( Kinetec® continuous passive motion ( CPM )) and functional activities (e.g.,stairs, walking)
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Device: Kinetec® knee continuous passive motion (CPM )
CPM of the knee Behavioral: Functional activities Stairs, walking Other: traditional rehabilitation exercise therapy through a traditional rehabilitation training made by physiotherapists |
- Pain: Visual Analogue Scale (VAS) [ Time Frame: baseline and 10 days (value at day 10 minus value at baseline) ]The VAS scale was measured in a range of 0-100 cm (0 no pain and 100 the worst pain)
- Knee Disability: Western Ontario and McMaster Universities Arthritis Index (WOMAC) Questionnaire [ Time Frame: baseline and 10 days (value at day 10 minus value at baseline) ]
The WOMAC measures five items for pain (score range 0-500), two for stiffness (score range 0-200), and 17 for functional limitation (score range 0-1700) for a total score of 2400 (0= no disability, 2400= highest disability):
- Pain (5 items): during walking, using stairs, in bed, sitting or lying, and standing
- Stiffness (2 items): after first waking and later in the day
- Physical Function (17 items): stair use, rising from sitting, standing, bending, walking, getting in / out of a car, shopping, putting on / taking off socks, rising from bed, lying in bed, getting in / out of bath, sitting, getting on / off toilet, heavy household duties, light household duties
- Knee Active Range of Motion [ Time Frame: assesed and reported at 10 days ]assessed by Virtual Reality Rehabilitation System (degree of movement)
- Health Related Quality of Life: Euro Quality of Life Five Dimensions Questionnaire (EQ-5D) [ Time Frame: assessed and reported at 10 days ]The EQ-5D comprises the following 5 dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression.The EQ-5D descriptive system is divided into five levels of perceived problems: LEVEL 1: indicating no problem; LEVEL 2:indicating some problems;LEVEL 3: indicating extreme problems. EQ-5D health states can be summarised using the 5-digit code (e.g., 11111, 12311).The answers given to ED-5D permit to find 243 5-digit codes defining the health states.The 5-digit code are linked to an unique index derived by applying a formula that attaches values (weights) to each of the levels in each dimension.Weights depend on the country (Italian Population-Based Values of EQ-5D HealthStates,Scalone 2013).The index has been calculated by deducting the appropriate weights from 1 which is the best health status as highest score (i.e. the corresponding 5-digit code is 11111) and -0.38 for the worst health status as minimum score (i.e., the corresponding 5-digit code is 33333).
- Global Perceived Effect (GPE) [ Time Frame: assessed and reported at 10 days ]The GPE scale asks the patient to rate, on a numerical scale, how much their condition has improved or deteriorated since some predefined time point. The GPE was administered at the end of the physiotherapy treatment to measure the effect of the intervention on patients' health status perception. This Likert scale had five response options (5 = Very much improved; 4 = Much improved, 3 = No change, 2 = Much worse, 1 = Very much worse).
- The Functional Independence Measure (FIM) Scale [ Time Frame: baseline and 10 days (value at day 10 minus value at baseline) ]The FIM scale assesses physical and cognitive disability focusing on the level of disability indicating the burden of caring for them. The total score is 126 (18=highest disability, 126=no disability).
- Proprioception [ Time Frame: assessed and reported at 10 day ]assessed by Virtual Reality Rehabilitation System (percentage value of similarity between ideal and patient knee movement trajector)
- Isometric Strength of Quadriceps and Hamstrings [ Time Frame: baseline and 10 days (value at day 10 minus value at baseline) ]Isometric strength of quadriceps and hamstrings is assessed by dynamometer (newton unit)
- Drugs Assumption [ Time Frame: value at day 10 ]number of drugs assumpted for each group during rehabilitation recovery

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Ages Eligible for Study: | 45 Years to 80 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- primary unilateral TKA for knee osteoarthritis
- informed consent
Exclusion Criteria:
- people with unstable serious disease (e.g., heart or lung disease)
- people with previous orthopedics pathologies on the same side (e.g., hip arthroprosthesis)
- pregnancy
- psychotropic drugs assumption

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02413996
Italy | |
IRCCS Galeazzi Orthopedic Hospital | |
Milan, Italy, 20161 |
Study Director: | Giuseppe Banfi, MD | IRCCS Galeazzi Hospital |
Documents provided by Davide Tornese, Istituto Ortopedico Galeazzi:
Responsible Party: | Davide Tornese, Medico Chirurgo Specialista in Medicina Fisica e Riabilitazione, Specialista in Medicina dello Sport, Responsabile reparto di Riabilitazione Sportiva, Istituto Ortopedico Galeazzi |
ClinicalTrials.gov Identifier: | NCT02413996 |
Other Study ID Numbers: |
VRRS |
First Posted: | April 10, 2015 Key Record Dates |
Results First Posted: | January 9, 2020 |
Last Update Posted: | January 9, 2020 |
Last Verified: | December 2019 |
Virtual Reality Therapy Rehabilitation Total Knee Replacement Knee Arthroplasty |
Exercise Arthritis Rheumatic Disease |
Osteoarthritis Arthritis Joint Diseases Musculoskeletal Diseases Rheumatic Diseases |