Freedom® Total Knee System for Treatment of Osteoarthritis, Rheumatoid Arthritis or Post-traumatic Arthritis
Freedom®450
A Prospective, Multi-centre, Non-comparative, Post-market Clinical Follow-up Study to Evaluate the Survivorship, Safety and Performance of the Freedom® Total Knee System in United Kingdom.
1 other identifier
interventional
450
0 countries
N/A
Brief Summary
A prospective, multi-centre, non-comparative, post-market clinical follow-up study to evaluate the survivorship, safety and performance of the Freedom® Total Knee System in the treatment of approximately 450 subjects who in the surgeon's opinion require a primary total knee replacement due to severe knee joint pain and loss of mobility due to osteoarthritis, rheumatoid arthritis or post-traumatic arthritis at upto 15 centers in the United Kingdom (UK). The primary objective of this study is to obtain implant survivorship and clinical outcomes data for commercially available Freedom® Total Knee System used in total knee replacement. Subjects must meet all the study inclusion / exclusion criteria before enrolment in the study. Subjects will be requested to attend out-patients clinic for clinical follow-up (CFU) or approached for telephonic follow-up (TFU) post-operatively as mentioned below. Clinical \& Telephonic Follow-up details:
- 6-8 weeks ± 1week (Clinical follow-up)
- 1 year ± 1 month (Clinical follow-up)
- 3 years ± 6 months (Clinical follow-up)
- 5 years ± 6 month (Clinical follow-up (optional) / Telephonic follow-up)
- 10 years± 6 month (Clinical follow-up (optional) / Telephonic follow-up)
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable knee-osteoarthritis
Started Jan 2021
Longer than P75 for not_applicable knee-osteoarthritis
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
January 23, 2019
CompletedFirst Posted
Study publicly available on registry
July 26, 2019
CompletedStudy Start
First participant enrolled
January 1, 2021
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 1, 2024
CompletedStudy Completion
Last participant's last visit for all outcomes
September 1, 2032
ExpectedOctober 5, 2020
October 1, 2020
3.7 years
January 23, 2019
October 1, 2020
Conditions
Outcome Measures
Primary Outcomes (1)
Implant Survivorship Kaplan-Meier estimates of survivorship for all components
Implant survivor-ship will be established by using revision surgery on the operated knee as implant failure.
At 3 years
Secondary Outcomes (3)
Oxford Knee Score which consists of 12 questions
At 1 year and 3 years
Range of Motion using a standard goniometer
At 1 year and 3 years
Knee Society Score
At 1 year and 3 years
Study Arms (1)
Freedom® Total Knee System
OTHERA prospective, multi-centre, non-comparative, post-market clinical follow-up study to evaluate the survivorship, safety and performance of the Freedom® Total Knee System in United Kingdom
Interventions
To evaluate the survivorship, safety and performance of the Freedom® Total Knee System in the treatment of subjects who in the surgeon's opinion require a primary total knee replacement due to severe knee joint pain and loss of mobility due to osteoarthritis, rheumatoid arthritis or post-traumatic arthritis.
Eligibility Criteria
You may qualify if:
- Male and female subjects aged between 18 years and 75 years.
- Subjects who require unilateral knee prosthesis and have been evaluated as appropriate candidates for a total knee replacement by the investigator.
- Subjects suffering from severe knee joint pain and loss of mobility due to rheumatoid arthritis, osteoarthritis or post-traumatic osteoarthritis.
- Subjects, who in the opinion of the investigator are able to understand this clinical investigation, co-operate with the investigational procedures and are willing to return to the hospital for all the required post-operative follow ups.
- Subjects who are able to give voluntary, written informed consent to participate in this clinical investigation and from whom consent has been obtained.
You may not qualify if:
- Subjects who, in the opinion of the Investigator, have an existing condition that would compromise their participation and follow-up in this clinical investigation.
- Subjects who are known drug or alcohol abuse or with psychological disorders that could affect follow-up care or treatment outcomes.
- Subject with a known sensitivity to device materials.
- Subjects with other significant disabling problems from the muscular-skeletal system other than in the knees (i.e muscular dystrophy, polio, neuropathic joints).
- Subjects with a BMI of 40 or above.
- Subjects with a current or active history of malignancy, active or suspected infection, Paget's disease, renal osteodystrophy, immunologically suppressed or have any other significant medical illness judged by investigator to exclude from study.
- Subject with neuromuscular or neurosensory deficiency that may limit ability of the patient to evaluate the safety and efficacy of the device.
- Female subjects who are pregnant or lactating.
- Subjects who have previously undergone total or unicondylar knee replacement, high tibial osteotomy, ligament reconstruction, open reduction internal fixation (ORIF) or with previous fracture in the ipsilateral knee joint.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Prof. Hemant Pandit, FRCS (Orth)
Chapel Allerton Hospital and University of Leeds
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NA
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
January 23, 2019
First Posted
July 26, 2019
Study Start
January 1, 2021
Primary Completion
September 1, 2024
Study Completion (Estimated)
September 1, 2032
Last Updated
October 5, 2020
Record last verified: 2020-10
Data Sharing
- IPD Sharing
- Will not share