Persona MC Retained PCL vs. Persona Posterior-stabilized vs. NexGen PS (Persona TKA)

July 25, 2021 updated by: Artur Stolarczyk, Medical University of Warsaw

Comparison of the Persona Medial Congruent Retained Posterior-Cruciate Ligament vs. Persona Posterior-stabilized vs. NexGen Posterior-Stabilized Total Knee Arthroplasty a Randomised Controlled Trial

This study compares and evaluates differences in movement analysis, patient-reported outcome and radiological assesment between patients undergoing total knee arthroplasty with use of either Zimmer Biomet NexGen and Zimmer Biomet PERSONA

Study Overview

Detailed Description

Osteoarthritis causes the joints to become painful and stiff. Osteoarthritis of the knee is a common condition that is expected to be a lot more frequent in the next two decades. As a consequence, an increase of total knee replacement surgery is predicted. Total knee replacement surgery is offered when knee pain and stiffness caused by osteoarthritis can no longer be managed and these symptoms significantly impact on an individual's normal activities of daily living. Most total knee replacements are successful but up to 34% of all patients have poor functional outcomes following surgery. This leaves affected people at a greater risk of reduced physical activity and thus impacts longer-term general health. Poor outcomes are therefore of importance to patients and have a considerable financial and service-provision impact on National Health Service (NHS) care. While patient-related characteristics and their relationship to patient outcomes have been identified, few studies have been undertaken to determine how kinematic outcomes (how the prosthetic knee moves) are related to functional outcome and patient satisfaction. The kinematic outcome of a total knee replacement is hypothesised to relate to both the structural design (shape) of the implant and the surgical procedure itself. To date, no studies have investigated the kinematic outcomes of different total knee replacement prosthesis designs through a range of typical activities of everyday mobility (functional outcomes). Whilst it is known that long term success of total knee replacement depends largely upon correct alignment of the prosthesis components during surgery, no studies have looked at the anatomical alignments of the osteoarthritic knee prior to undergoing surgery (using Computerised Tomography (CT) scanning). The aim of the study is to examine relationships between movement analysis (kinematic and functional outcomes), patient reported outcome measures (PROMS) and CT measurement, both pre- and post-operatively, between two knee prosthesis including one that has been designed to improve functional outcomes.

Study Type

Interventional

Enrollment (Anticipated)

100

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

      • Warsaw, Poland
        • Recruiting
        • Department of Othopedics and Rehabilitation, Medical University of Warsaw
        • Contact:
        • Principal Investigator:
          • Artur Stolarczyk, MD, PhD
        • Principal Investigator:
          • Bartosz M. Maciąg, MD

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. Listed for a primary total knee replacement (TKR) at the Orthopaedic and Rehabilitation Department Medical University of Warsaw
  2. Indication for the TKR is primary osteoarthritis of the knee joint involving one or more compartments
  3. Aged 18 or over
  4. Patient willing to provide full informed consent to the trial

Exclusion Criteria:

  1. Listed for a single-stage bilateral TKR procedure
  2. Severe symptoms in the contralateral knee so as to require staged bilateral knee replacements within 6 months of the primary procedure
  3. Fixed flexion deformity of 15 degrees or greater who will require excessive resection of the distal femur
  4. Clinically assessed uncorrectable varus/valgus deformity of 15 degrees or greater
  5. Any co-morbidity which, in the opinion of the investigator, is severe enough to present an unacceptable risk to the patient's safety
  6. Inflammatory arthritis
  7. Previous septic arthritis in the affected knee joint
  8. Previous surgery to the collateral ligaments of the affected knee
  9. A contralateral total knee replacement that has been implanted less than one year from the date of consultation
  10. A contralateral total knee replacement that is severely painful
  11. Patients on warfarin or novel oral anticoagulants (NOACs)
  12. Will not be resident in the catchment area for at least 6 months post-surgery
  13. Undertaking the surgery as a private patient
  14. Patients who, in the opinion of the clinical staff, do not have capacity to consent
  15. Patients who are pregnant
  16. Unable to understand written and spoken Polish

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: TREATMENT
  • Allocation: RANDOMIZED
  • Interventional Model: PARALLEL
  • Masking: DOUBLE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
ACTIVE_COMPARATOR: NexGen
Patients undergoing total knee replacement for treatment of primary knee ostearthritis with use of Zimmer Biomet NexGen prosthesis
Participants will be asked to perform biomechanical assesment before and following surgery at baseline, 6-8 weeks and 6-months postoperatively
Participant will undergo total knee replacement performed via anterior parapatellar approach with either Posterior Cruciate Ligament sacrificing or retaining implant
CT scans of the affected knee joint before and after the surgical procedure
Participant are randomly allocated to receive one of the Persona MC Retained PCL, Persona MC Sacrificed PCL and the NexGen PS total knee implant for treatment of end-stage knee osteoarthritis.
ACTIVE_COMPARATOR: Persona MC Retained PCL
Patients undergoing total knee replacement for treatment of primary knee ostearthritis with use of Zimmer Biomet Persona MC Retained PCL prosthesis
Participants will be asked to perform biomechanical assesment before and following surgery at baseline, 6-8 weeks and 6-months postoperatively
Participant will undergo total knee replacement performed via anterior parapatellar approach with either Posterior Cruciate Ligament sacrificing or retaining implant
CT scans of the affected knee joint before and after the surgical procedure
Participant are randomly allocated to receive one of the Persona MC Retained PCL, Persona MC Sacrificed PCL and the NexGen PS total knee implant for treatment of end-stage knee osteoarthritis.
ACTIVE_COMPARATOR: Persona MC Sacrificed PCL
Patients undergoing total knee replacement for treatment of primary knee ostearthritis with use of Zimmer Biomet Persona MC Sacrificed PCL prosthesis
Participants will be asked to perform biomechanical assesment before and following surgery at baseline, 6-8 weeks and 6-months postoperatively
Participant will undergo total knee replacement performed via anterior parapatellar approach with either Posterior Cruciate Ligament sacrificing or retaining implant
CT scans of the affected knee joint before and after the surgical procedure
Participant are randomly allocated to receive one of the Persona MC Retained PCL, Persona MC Sacrificed PCL and the NexGen PS total knee implant for treatment of end-stage knee osteoarthritis.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Changes in patients reported outcome measures - Oxford Knee Score (OKS)
Time Frame: baseline (preoperatively) and 6-months postoperatively
To explore differences between outcome in patients treated with use of with Nexgen and Persona prosthesis. Results range from 0 to 48, with higher scores corresponding to better outcomes.
baseline (preoperatively) and 6-months postoperatively

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Changes in patients reported outcome measures - Oxford Knee Score (OKS)
Time Frame: 1 week and 6-8 weeks post-operatively
To explore differences between outcome in patients treated with use of with Nexgen and Persona prosthesis. Results range from 0 to 48, with higher scores corresponding to better outcomes.
1 week and 6-8 weeks post-operatively
Changes in patients reported outcomes - Oxford Knee Score Activity & Participation Questionnaire (OKS_APQ)
Time Frame: 1 week, 6-8 weeks and 6 months post- operatively
To explore differences in higher levels of activity and social participation
1 week, 6-8 weeks and 6 months post- operatively
Changes in patients reported outcomes - EuroQol (EQ- 5D-5L)
Time Frame: 1 week, 6-8 weeks and 6 months post- operatively
To explore differences in quality of life
1 week, 6-8 weeks and 6 months post- operatively
Changes in patients reported outcomes - Forgotten Joint Score (FJS)
Time Frame: 6-8 weeks and 6 months post-operatively
To explore differences in patient's ability to forget about a joint as a result of successful treatment. Results range from 0 to 100, with higher scores corresponding to better outcomes.
6-8 weeks and 6 months post-operatively
Changes in patients reported outcomes - UCLA (University of California) score
Time Frame: 6-8 weeks and 6 months post-operatively
To explore differences in patient's physical activity. Results range from 0 to 10, with higher scores corresponding to better outcomes.
6-8 weeks and 6 months post-operatively
Changes in knee range of motion
Time Frame: preoperatively, 6-8 weeks and 6 months post-operatively
To explore differences in range of motion (flexion and extension)
preoperatively, 6-8 weeks and 6 months post-operatively
Changes in pain medication
Time Frame: 1 week, 6-8 weeks and 6 months post-operatively
To asses evolution of post-operative knee pain
1 week, 6-8 weeks and 6 months post-operatively
arthroplasty related complications
Time Frame: 1 week, 6-8 weeks and 6 months post-operatively
To count and asses all complications that may occur during surgery and in postoperative period
1 week, 6-8 weeks and 6 months post-operatively
arthroplasty revision surgeries
Time Frame: 1 week, 6-8 weeks and 6 months post-operatively
To count and asses the reason of all revision surgeries that may occur during postoperative period
1 week, 6-8 weeks and 6 months post-operatively
walking abilities
Time Frame: 6-8 weeks and 6 months post-operatively
To asses "up and go" time
6-8 weeks and 6 months post-operatively
Length of hospital stay
Time Frame: from baseline to discharge from hospital ranging averagely from 1 up to 7 days postoperatively
To measure number of days counting from surgery to the discharge
from baseline to discharge from hospital ranging averagely from 1 up to 7 days postoperatively
Biomechanical 3D miotion and emg walking outcomes
Time Frame: at baseline, 6-8 weeks and 6 months post-operatively
Overground walking is measured using 3D Motion analysis and electromyography (EMG)
at baseline, 6-8 weeks and 6 months post-operatively
Radiological outcome on CT scans
Time Frame: at baseline preoperatively and 6-months postoperatively
Rotational alignment of the total knee component is assessed by measuring the femoral antetorsion, Alignment of the total knee component is assessed by measuring the tibial tubercle-trochlear groove distance (TT-TG)
at baseline preoperatively and 6-months postoperatively
6- minute walking abilities
Time Frame: 6-8 weeks and 6 months post-operatively
to asses pace and model of 6-minute walk
6-8 weeks and 6 months post-operatively
Biomechanical stair climbing outcomes
Time Frame: at baseline, 6-8 weeks and 6 months post-operatively
Stair climbing and descending is measured using 3D Motion analysis and EMG
at baseline, 6-8 weeks and 6 months post-operatively
Biomechanical static balance outcomes
Time Frame: at baseline, 6-8 weeks and 6 months post-operatively
Static balance is measured using a force plate
at baseline, 6-8 weeks and 6 months post-operatively
Biomechanical dynamic balance outcomes
Time Frame: at baseline, 6-8 weeks and 6 months post-operatively
Dynamic balance is measured using a force plate and the modified Star Excursion Balance Test (mSEBT)
at baseline, 6-8 weeks and 6 months post-operatively
Leg muscle strength outcomes
Time Frame: at baseline, 6-8 weeks and 6 months post-operatively
Leg muscle strength measured using maximal voluntary isometric contraction (MVIC) test of the hamstring and quadriceps muscles on both limbs.
at baseline, 6-8 weeks and 6 months post-operatively

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Study Director: Artur Stolarczyk, PhD, Medical University of Warsaw

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (ACTUAL)

July 1, 2020

Primary Completion (ANTICIPATED)

December 1, 2021

Study Completion (ANTICIPATED)

December 31, 2022

Study Registration Dates

First Submitted

October 31, 2019

First Submitted That Met QC Criteria

November 14, 2019

First Posted (ACTUAL)

November 15, 2019

Study Record Updates

Last Update Posted (ACTUAL)

August 2, 2021

Last Update Submitted That Met QC Criteria

July 25, 2021

Last Verified

July 1, 2021

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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