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Trial registered on ANZCTR
Registration number
ACTRN12622001299796
Ethics application status
Approved
Date submitted
8/09/2021
Date registered
7/10/2022
Date last updated
7/10/2022
Date data sharing statement initially provided
7/10/2022
Date results provided
7/10/2022
Type of registration
Retrospectively registered
Titles & IDs
Public title
Safe Tibial Subsidence Pattern of a Medial Pivot Knee. A Radiostereometric Analysis (RSA) Study
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Scientific title
Safe Tibial Subsidence Pattern of a Medial Pivot Knee Arthroplasty for Osteoarthritis. An RSA Study
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Secondary ID [1]
305261
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None
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Universal Trial Number (UTN)
U1111-1269-3201
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Trial acronym
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
osteoarthritis
323534
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arthroplasty
323535
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Condition category
Condition code
Musculoskeletal
321099
321099
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0
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Osteoarthritis
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
All patients underwent total knee arthroplasty with the Saiph implant system from Matortho, each surgery taking an estimated one hour. Follow up X-rays were performed at six weeks postoperative and at one and two years, each time taking approximately twenty minutes.
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Intervention code [1]
321650
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Treatment: Surgery
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Comparator / control treatment
No control group
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Control group
Uncontrolled
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Outcomes
Primary outcome [1]
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Radiostereometric analysis to assess component migration
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Assessment method [1]
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Timepoint [1]
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24 months post surgery
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Secondary outcome [1]
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Implant survival assessed by potential revision surgery
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Assessment method [1]
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Timepoint [1]
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24 months post surgery
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Eligibility
Key inclusion criteria
osteoarthritis
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Minimum age
18
Years
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Maximum age
99
Years
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Sex
Both males and females
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Can healthy volunteers participate?
No
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Key exclusion criteria
Planned or actual pregnancy, prior ipsilateral arthroplasty surgery, diagnosed osteoporosis or osteopenia and medications associated with it such as bisphosphonates, corticosteroids and Protos
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Study design
Purpose of the study
Treatment
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Allocation to intervention
Non-randomised trial
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
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Masking / blinding
Open (masking not used)
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Who is / are masked / blinded?
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Intervention assignment
Single group
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Other design features
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Phase
Not Applicable
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Type of endpoint/s
Safety
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Statistical methods / analysis
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Recruitment
Recruitment status
Completed
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Date of first participant enrolment
Anticipated
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Actual
2/04/2014
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Date of last participant enrolment
Anticipated
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Actual
1/03/2019
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Date of last data collection
Anticipated
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Actual
1/03/2020
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Sample size
Target
35
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Accrual to date
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Final
35
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Recruitment in Australia
Recruitment state(s)
WA
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Recruitment hospital [1]
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Fremantle Hospital and Health Service - Fremantle
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Recruitment postcode(s) [1]
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6160 - Fremantle
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Funding & Sponsors
Funding source category [1]
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Commercial sector/Industry
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Name [1]
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Matortho
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Address [1]
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3.16/4 Columbia Ct, Nexus Building, Norwest, NSW 2153
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Country [1]
309630
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Australia
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Primary sponsor type
Hospital
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Name
Fremantle Hospital and Health Service
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Address
1/3 Alma St, Fremantle WA 6160
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Country
Australia
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Secondary sponsor category [1]
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None
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Name [1]
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Address [1]
310650
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Country [1]
310650
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Ethics approval
Ethics application status
Approved
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Ethics committee name [1]
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South Metro Health Service Human Research Ethics Committee WA
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Ethics committee address [1]
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14 Barry Marshall Parade, MURDOCH WA 6150
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Ethics committee country [1]
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Australia
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Date submitted for ethics approval [1]
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05/02/2013
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Approval date [1]
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26/02/2013
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Ethics approval number [1]
309405
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13/3
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Summary
Brief summary
BACKGROUND Micromotion analysis supports effective cemented tibial component fixation in Total Knee Replacement (TKR) but a paucity of literature exists for medial pivot designs. This clinical study examined the tibial component micromotion and clinical scores in a second-generation medial pivot TKR. METHODS This prospective single-center clinical cohort trial involved 35 patients with a mean patient age of 71 years. Operations were performed by one experienced arthroplasty surgeon using the SAIPH implant (MatOrtho). All patients received fully cemented fixation with patella resurfacing. Other variables were standardized. Radiostereometric Analysis was performed at 6 weeks and 12 months to monitor tibial component behavior. The working hypothesis of this study is that the SAIPH tibial baseplate achieves stable fixation using bone cement in subjects undergoing TKR
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Trial website
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Trial related presentations / publications
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Public notes
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Contacts
Principal investigator
Name
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Prof Piers Yates
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Address
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Fremantle Hospital and Health Service, Alma St, Fremantle WA 6160
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Country
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Australia
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Phone
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+61418594392
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Fax
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Email
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[email protected]
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Contact person for public queries
Name
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Piers Yates
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Address
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Fremantle Hospital and Health Service, Alma St, Fremantle WA 6160
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Country
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Australia
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Phone
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+610894313333
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Fax
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Email
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[email protected]
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Contact person for scientific queries
Name
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Nils Oscar Nivbrant
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Address
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Fremantle Hospital and Health Service, Alma St, Fremantle WA 6160
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Country
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Australia
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Phone
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+610433501123
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Fax
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Email
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[email protected]
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Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
No
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No/undecided IPD sharing reason/comment
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What supporting documents are/will be available?
No Supporting Document Provided
Results publications and other study-related documents
Documents added manually
No documents have been uploaded by study researchers.
Documents added automatically
No additional documents have been identified.
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