RehabilitationNCT03904030
Postoperative Rehabilitation After Knee Arthroplasty: Anti-Gravity Treadmill
A study testing Rehabilitation with or without Anti-Gravity Treadmill in people with Rehabilitation, run by Orton Orthopaedic Hospital at 1 site in Finland.
Trial summary
The aim of this study is to clarify the effectiveness and the usefulness of the anti-gravity treadmill in postoperative rehabilitation after knee arthroplasty. The investigators will compare anti-gravity treadmill rehabilitation and the traditional postoperative rehabilitation with instructions. Read more about this study
- Who is it for?
- Any age
- Conditions the study is for
- Rehabilitation
- What is being tested?
- Rehabilitation with or without Anti-Gravity Treadmill
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 62 participants
- Where
- 1 siteFinland
- Study dates
- 1 Jan 2019to 31 Jul 2022
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages Any age
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
Who may be able to join
- primary knee arthroplasty patients with grade III-V changes
Who cannot join
- earlier osteotomy to the operated knee
- rheumatoid arthritis
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Postoperative Rehabilitation After Knee Arthroplasty, With or Without Anti-Gravity Treadmill
The aim of this study is to clarify the effectiveness and the usefulness of the anti-gravity treadmill in postoperative rehabilitation after knee arthroplasty. The investigators will compare anti-gravity treadmill rehabilitation and the traditional postoperative rehabilitation with instructions.
The investigators will assume that anti-gravity treadmill exercise after hospitalization will lead to the faster rehabilitation, better walking quality and balance management compared to traditional rehabilitation methods with instructions, where patient themselves do the exercises at home. Additionally, the investigators will assume that quality of life and physical activity will be more increased in the anti-gravity group than in the traditional rehabilitation.
Read the detailed description
The aim of this study is to clarify the effectiveness and the usefulness of the anti-gravity treadmill in postoperative rehabilitation after knee arthroplasty. This issue is especially relevant because the number of knee arthroplasty patients is increasing. The rehabilitation of knee arthroplasty patients has also appeared to be more challenging than in the case of hip arthroplasty.
The investigators will compare anti-gravity treadmill rehabilitation and the traditional postoperative rehabilitation with instructions. The investigators will recruit the patients either in the anti-gravity group (n=27) or in the traditional rehabilitation (n=27) (randomized study design).
The investigators will assume that anti-gravity treadmill exercise after hospitalization will lead to the faster rehabilitation, better walking quality and balance management compared to the traditional rehabilitation.
- Conditions
- Rehabilitation
- Being tested
- Rehabilitation with or without Anti-Gravity Treadmill
- Keywords
- knee arthroplasty, rehabilitation, anti-gravity treadmill, Randomized study
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Rehabilitation with or without Anti-Gravity TreadmillOther
The study will include patients with grade III-IV primary knee osteoarthritis. The investigators will take 27 patients to the both groups. The investigators will look after more specifically the anti-gravity treadmill rehabilitation and traditional rehabilitation after arthroplasty. Follow-up is one year. Functional tests will be made and questionnaires will be given to the patients before operation and after operation. After 6 to 8 weeks, 4 months and 12 months of operation questionnaires will be fil up again. After six month the investigators will send a questionnaire and there will be asked possible rehabilitation sessions, use of drugs and possible complications after knee arthroplasty.
| Study group | Role | What they receive |
|---|---|---|
| Anti-Gravity Treadmill rehabilitation | Experimental | Patients in the intervention group are participating to the Alter G exercises (n=27). The groups are randomized, so after patients have signed consent, an envelop will be opened and there can be seen in which groups patients will participate. Receives: Other: Rehabilitation with or without Anti-Gravity Treadmill |
| Traditional rehabilitation | Active comparator | Traditional exercises with instructions are given to the patients (n=27) (as a control group). Receives: Other: Rehabilitation with or without Anti-Gravity Treadmill |
What is being measured
The primary outcome is the main question the study is designed to answer.
Walking ability
6 minutes walking test will be used
Measured: 12 months after operation
Health-related quality of life
The RAND Health-Related Quality of Life Inventory, RAND 36-Item, will be used, RAND-36 includes: Physical functioning,10 questions; Role functioning/physical, 4 questions; Role functioning/emotional, 3 questions; Energy/fatique, 4 questions, Emotional well-being, 5 questions; Social functioning, 2 questions; Pain, 2 questions; General health, 5 questions; Health change, 1 question. All: 36 questions. Scale: 0 - 100
Measured: 12 months
Perceived pain
Visual analogue scale, (0 to 100, where 0 means no pain at all and 100 means the worst possible pain)
Measured: 12 months after operation
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted4 Apr 2019
- Study start1 Jan 2019
- Primary completion31 Jul 2022
- Study completion31 Jul 2022
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (14)Papers the sponsor has linked to this study.
- Other trials for RehabilitationStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Model description
- Anti-gravity treadmill rehabilitation and traditional rehabilitation
- Masking
- Single blind
- Who is masked
- Investigator
- Enrolment
- 62 participants (actual)
Sponsor and investigators
- Lead sponsor
- Orton Orthopaedic Hospital
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Leena Ristolainen, Orton Orthopaedic Hospital
- Investigators
- Heikki Hurri, Study director, Orton Ltd
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03904030
- Sponsor's protocol ID
- OrtonOH
- Status last verified
- Sep 2022
- First submitted
- 1 Apr 2019
- Last updated
- 22 Sep 2022
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
BECK AT, WARD CH, MENDELSON M, MOCK J, ERBAUGH J. An inventory for measuring depression. Arch Gen Psychiatry. 1961 Jun;4:561-71. doi: 10.1001/archpsyc.1961.01710120031004. No abstract available.
PubMed 13688369Bellamy N, Buchanan WW, Goldsmith CH, Campbell J, Stitt LW. Validation study of WOMAC: a health status instrument for measuring clinically important patient relevant outcomes to antirheumatic drug therapy in patients with osteoarthritis of the hip or knee. J Rheumatol. 1988 Dec;15(12):1833-40.
PubMed 3068365Bugbee WD, Pulido PA, Goldberg T, D'Lima DD. Use of an Anti-Gravity Treadmill for Early Postoperative Rehabilitation After Total Knee Replacement: A Pilot Study to Determine Safety and Feasibility. Am J Orthop (Belle Mead NJ). 2016 May-Jun;45(4):E167-73.
PubMed 27327921Cheatham SW, Mokha M, Lee M. Postoperative Rehabilitation After Hip Resurfacing: A Systematic Review. J Sport Rehabil. 2016 May;25(2):181-9. doi: 10.1123/jsr.2014-0270. Epub 2015 Jan 22.
PubMed 25611202Dawson J, Fitzpatrick R, Murray D, Carr A. Questionnaire on the perceptions of patients about total knee replacement. J Bone Joint Surg Br. 1998 Jan;80(1):63-9. doi: 10.1302/0301-620x.80b1.7859.
PubMed 9460955Freynhagen R, Baron R, Gockel U, Tolle TR. painDETECT: a new screening questionnaire to identify neuropathic components in patients with back pain. Curr Med Res Opin. 2006 Oct;22(10):1911-20. doi: 10.1185/030079906X132488.
PubMed 17022849Gaudry E, Vagg P, Spielberger CD. Validation of the State-Trait Distinction in Anxiety Research. Multivariate Behav Res. 1975 Jul 1;10(3):331-41. doi: 10.1207/s15327906mbr1003_6.
PubMed 26829634Guyatt GH, Sullivan MJ, Thompson PJ, Fallen EL, Pugsley SO, Taylor DW, Berman LB. The 6-minute walk: a new measure of exercise capacity in patients with chronic heart failure. Can Med Assoc J. 1985 Apr 15;132(8):919-23.
PubMed 3978515Konlian C. Aquatic therapy: making a wave in the treatment of low back injuries. Orthop Nurs. 1999 Jan-Feb;18(1):11-8; quiz 19-20. doi: 10.1016/s1361-3111(99)80068-5.
PubMed 10223000Patil S, Steklov N, Bugbee WD, Goldberg T, Colwell CW Jr, D'Lima DD. Anti-gravity treadmills are effective in reducing knee forces. J Orthop Res. 2013 May;31(5):672-9. doi: 10.1002/jor.22272. Epub 2012 Dec 13.
PubMed 23239580Podsiadlo D, Richardson S. The timed "Up & Go": a test of basic functional mobility for frail elderly persons. J Am Geriatr Soc. 1991 Feb;39(2):142-8. doi: 10.1111/j.1532-5415.1991.tb01616.x.
PubMed 1991946Soininen JV, Paavolainen PO, Gronblad MA, Kaapa EH. Validation study of a Finnish version of the Western Ontario and McMasters University osteoarthritis index. Hip Int. 2008 Apr-Jun;18(2):108-11. doi: 10.1177/112070000801800207.
PubMed 18645984Valtonen A, Poyhonen T, Sipila S, Heinonen A. Effects of aquatic resistance training on mobility limitation and lower-limb impairments after knee replacement. Arch Phys Med Rehabil. 2010 Jun;91(6):833-9. doi: 10.1016/j.apmr.2010.03.002.
PubMed 20510971Jaaskelainen E, Manninen M, Hurri H, Rantasalo M, Zhou Y, Kautiainen H, Ristolainen L. Effectiveness of Anti-Gravity Treadmill Exercise After Total Knee Arthroplasty: Protocol for a Randomized Controlled Trial. JMIR Res Protoc. 2025 Feb 11;14:e59935. doi: 10.2196/59935.
PubMed 39932768
Study at a glance
From the registry record, last updated by the sponsor on 22 Sep 2022. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Postoperative Rehabilitation After Knee Arthroplasty, With or Without Anti-Gravity Treadmill
- ClinicalTrials.gov ID
- NCT03904030
- Acronym / sponsor ID
- OrtonOH
- Conditions
- Rehabilitation
- Keywords
- knee arthroplasty, rehabilitation, anti-gravity treadmill, Randomized study
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 62 participants (actual)
- Lead sponsor
- Orton Orthopaedic HospitalUniversity, hospital or other
- Study start
- 1 Jan 2019 (actual)
- Primary completion
- 31 Jul 2022 (actual)
- Study completion
- 31 Jul 2022 (actual)
- First posted
- 4 Apr 2019 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The aim of this study is to clarify the effectiveness and the usefulness of the anti-gravity treadmill in postoperative rehabilitation after knee arthroplasty. The investigators will compare anti-gravity treadmill rehabilitation and the traditional postoperative rehabilitation with instructions.
The investigators will assume that anti-gravity treadmill exercise after hospitalization will lead to the faster rehabilitation, better walking quality and balance management compared to traditional rehabilitation methods with instructions, where patient themselves do the exercises at home. Additionally, the investigators will assume that quality of life and physical activity will be more increased in the anti-gravity group than in the traditional rehabilitation.
Detailed description
The aim of this study is to clarify the effectiveness and the usefulness of the anti-gravity treadmill in postoperative rehabilitation after knee arthroplasty. This issue is especially relevant because the number of knee arthroplasty patients is increasing. The rehabilitation of knee arthroplasty patients has also appeared to be more challenging than in the case of hip arthroplasty.
The investigators will compare anti-gravity treadmill rehabilitation and the traditional postoperative rehabilitation with instructions. The investigators will recruit the patients either in the anti-gravity group (n=27) or in the traditional rehabilitation (n=27) (randomized study design).
The investigators will assume that anti-gravity treadmill exercise after hospitalization will lead to the faster rehabilitation, better walking quality and balance management compared to the traditional rehabilitation.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (investigator)
- Number of arms
- 2
- Model description
- Anti-gravity treadmill rehabilitation and traditional rehabilitation
| Arm | Type | Receives |
|---|---|---|
| Anti-Gravity Treadmill rehabilitation | Experimental | Other: Rehabilitation with or without Anti-Gravity TreadmillPatients in the intervention group are participating to the Alter G exercises (n=27). The groups are randomized, so after patients have signed consent, an envelop will be opened and there can be seen in which groups patients will participate. |
| Traditional rehabilitation | Active comparator | Other: Rehabilitation with or without Anti-Gravity TreadmillTraditional exercises with instructions are given to the patients (n=27) (as a control group). |
Who may qualify
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
Key inclusion criteria (1 listed)
- primary knee arthroplasty patients with grade III-V changes
Key exclusion criteria (2 listed)
- earlier osteotomy to the operated knee
- rheumatoid arthritis
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Rehabilitation with or without Anti-Gravity TreadmillThe study will include patients with grade III-IV primary knee osteoarthritis. The investigators will take 27 patients to the both groups. The investigators will look after more specifically the anti-gravity treadmill rehabilitation and traditional rehabilitation after arthroplasty. Follow-up is one year. Functional tests will be made and questionnaires will be given to the patients before operation and after operation. After 6 to 8 weeks, 4 months and 12 months of operation questionnaires will be fil up again. After six month the investigators will send a questionnaire and there will be asked possible rehabilitation sessions, use of drugs and possible complications after knee arthroplasty. | Other | Anti-Gravity Treadmill rehabilitation, Traditional rehabilitation |
Primary outcome
Walking ability
Time frame: 12 months after operation
6 minutes walking test will be used
Health-related quality of life
Time frame: 12 months
The RAND Health-Related Quality of Life Inventory, RAND 36-Item, will be used, RAND-36 includes: Physical functioning,10 questions; Role functioning/physical, 4 questions; Role functioning/emotional, 3 questions; Energy/fatique, 4 questions, Emotional well-being, 5 questions; Social functioning, 2 questions; Pain, 2 questions; General health, 5 questions; Health change, 1 question. All: 36 questions. Scale: 0 - 100
Perceived pain
Time frame: 12 months after operation
Visual analogue scale, (0 to 100, where 0 means no pain at all and 100 means the worst possible pain)
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 22 Sep 2022.
- Background: PubMed 13688369BECK AT, WARD CH, MENDELSON M, MOCK J, ERBAUGH J. An inventory for measuring depression. Arch Gen Psychiatry. 1961 Jun;4:561-71. doi: 10.1001/archpsyc.1961.01710120031004. No abstract available.
- Background: PubMed 3068365Bellamy N, Buchanan WW, Goldsmith CH, Campbell J, Stitt LW. Validation study of WOMAC: a health status instrument for measuring clinically important patient relevant outcomes to antirheumatic drug therapy in patients with osteoarthritis of the hip or knee. J Rheumatol. 1988 Dec;15(12):1833-40.
- Background: PubMed 27327921Bugbee WD, Pulido PA, Goldberg T, D'Lima DD. Use of an Anti-Gravity Treadmill for Early Postoperative Rehabilitation After Total Knee Replacement: A Pilot Study to Determine Safety and Feasibility. Am J Orthop (Belle Mead NJ). 2016 May-Jun;45(4):E167-73.
- Background: PubMed 25611202Cheatham SW, Mokha M, Lee M. Postoperative Rehabilitation After Hip Resurfacing: A Systematic Review. J Sport Rehabil. 2016 May;25(2):181-9. doi: 10.1123/jsr.2014-0270. Epub 2015 Jan 22.
- Background: PubMed 9460955Dawson J, Fitzpatrick R, Murray D, Carr A. Questionnaire on the perceptions of patients about total knee replacement. J Bone Joint Surg Br. 1998 Jan;80(1):63-9. doi: 10.1302/0301-620x.80b1.7859.
- Background: PubMed 17022849Freynhagen R, Baron R, Gockel U, Tolle TR. painDETECT: a new screening questionnaire to identify neuropathic components in patients with back pain. Curr Med Res Opin. 2006 Oct;22(10):1911-20. doi: 10.1185/030079906X132488.
- Background: PubMed 26829634Gaudry E, Vagg P, Spielberger CD. Validation of the State-Trait Distinction in Anxiety Research. Multivariate Behav Res. 1975 Jul 1;10(3):331-41. doi: 10.1207/s15327906mbr1003_6.
- Background: PubMed 3978515Guyatt GH, Sullivan MJ, Thompson PJ, Fallen EL, Pugsley SO, Taylor DW, Berman LB. The 6-minute walk: a new measure of exercise capacity in patients with chronic heart failure. Can Med Assoc J. 1985 Apr 15;132(8):919-23.
- Background: PubMed 10223000Konlian C. Aquatic therapy: making a wave in the treatment of low back injuries. Orthop Nurs. 1999 Jan-Feb;18(1):11-8; quiz 19-20. doi: 10.1016/s1361-3111(99)80068-5.
- Background: PubMed 23239580Patil S, Steklov N, Bugbee WD, Goldberg T, Colwell CW Jr, D'Lima DD. Anti-gravity treadmills are effective in reducing knee forces. J Orthop Res. 2013 May;31(5):672-9. doi: 10.1002/jor.22272. Epub 2012 Dec 13.
- Background: PubMed 1991946Podsiadlo D, Richardson S. The timed "Up & Go": a test of basic functional mobility for frail elderly persons. J Am Geriatr Soc. 1991 Feb;39(2):142-8. doi: 10.1111/j.1532-5415.1991.tb01616.x.
- Background: PubMed 18645984Soininen JV, Paavolainen PO, Gronblad MA, Kaapa EH. Validation study of a Finnish version of the Western Ontario and McMasters University osteoarthritis index. Hip Int. 2008 Apr-Jun;18(2):108-11. doi: 10.1177/112070000801800207.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Heikki Hurri study director
Orton Ltd
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Rehabilitation with or without Anti-Gravity Treadmill in people with Rehabilitation, run by Orton Orthopaedic Hospital at 1 site in Finland.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 22 Sep 2022. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Finland. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Walking ability (time frame: 12 months after operation). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT03904030, which also lists 14 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 22 Sep 2022.