Clinical and Radiographic Outcomes of the JointMedica Polymotion Resurfacing (PHR) Device

July 15, 2025 updated by: JointMedica Inc.

The goal of this observational study is to generate Real World Evidence (RWE) on the device performance of the Polymotion Hip Resurfacing (PHR) system and its use in patients who have been implanted with the device for the treatment of hip osteoarthritis.

This study will assess the following endpoints:

  • The survivorship of the Acetabular Cup (Kaplan-Meier estimate) through 2 years of follow-up.
  • Radiographic success of the implanted cups, through quantitative motion analysis to assess migration of the acetabular cups.
  • Absence of subsequent surgical intervention at the acetabulum of there operated hip.
  • Absence of serious, device-related adverse events.
  • Patient reported outcomes through Harris Hip Score and SUSHI - UCLA Hip Score questionnaires.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Detailed Description

This is a retrospective and prospective study that will include a maximum of 70 patients who were implanted with the JointMedica Polymotion Hip Resurfacing (PHR) device in Canada, New Zealand and Australia.

Patients will be invited to consent to participate in this study, which will require their attendance of a follow-up standard of care visit to gather clinical data on the safety and performance of their index hip, undergo an x-ray imaging and complete two questionnaires to assess their functionality and outcomes.

Patient data will be entered into electronic data capture systems and x-rays will be submitted to a core imaging laboratory, MMI, for analysis to assess the state and position of their acetabular cup.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
105

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 Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • Australia
      • Adelaide, Australia
        • Mark Rickman
        • Contact:
        • Principal Investigator:
          • Mark Rickman
  • Canada
    • Alberta
      • Calgary, Alberta, Canada, T2C 3G3
        • Gateway Surgery Centre
        • Contact:
        • Principal Investigator:
          • James MacKenzie
  • New Zealand
      • Auckland, New Zealand
        • Orthopaedic Specialist Centre
        • Contact:
        • Principal Investigator:
          • Hugh Blackley
        • Sub-Investigator:
          • Bill Farrington

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Sampling Method

Non-Probability Sample

Study Population

Subjects that underwent hip arthroplasty procedure with the Polymotion Hip Resurfacing (PHR) System (V3.1 Cup design) between September 2020 to January 2025.

Subjects who have previously had the Polymotion Hip Resurfacing (PHR) System implanted at the sites will be contacted to give consent to participate in the collection of additional follow-up visits described within this protocol.

Description

Inclusion Criteria:

  • Age 21 or above at the time of the surgery.
  • Have had the Polymotion Hip Resurfacing (PHR) (implanted between September 2020 to January 2025
  • Written informed consent given by subject

Exclusion Criteria:

  • There is no exclusion criteria for this study

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

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Patient Group
The patient group is the entire group of patients who have been implanted with the Polymotion Hip Resurfacing (PHR) system. This is the only group in the study, all patients will be assessed under the same criteria.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Acetabular Cup Survivorship
Time Frame: From the primary implantation to end through to 24 months and 27months+ post operation.
The number of acetabular cups which are functional and not requiring additional surgical intervention following the primary implantation
From the primary implantation to end through to 24 months and 27months+ post operation.
Radiographic success
Time Frame: Between primary implantation surgery and post-operative review at 24-months and 27+ months.
Quantitative motion assessment of the acetabular cup at implantation and follow-up visit
Between primary implantation surgery and post-operative review at 24-months and 27+ months.
Serious Device-Related Adverse Events
Time Frame: From primary implantation to post-operative visit at 24-months or 27+months
Occurrence and severity of adverse events including necessitation of secondary surgical intervention.
From primary implantation to post-operative visit at 24-months or 27+months

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
JointMedica Inc.

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Ronan Treacy

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 (Estimated)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
July 25, 2025

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
October 31, 2026

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 31, 2026

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
July 15, 2025

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 15, 2025

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
July 23, 2025

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
July 23, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 15, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
July 1, 2025

More Information

Terms related to this study

Keywords

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • CI002

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

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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