NCT04049279

Brief Summary

Objective: The main objective of this study is to compare the (early) migration of the cemented BiMobile cup at two year post-surgery between two different cup sizes after standard optimal reaming, and consequently adjusting the cement mantle into circa 2 or 4 mm, in patients with a primary cemented total hip arthroplasty (THA). Additionally, the results of the BiMobile cup will be compared to the Avantage cup, which is placed with a standard cup size, resulting in a cement mantle of approximately 2 mm. Study design: A prospective single centre blinded randomised controlled trial. Study population: All patients who meet the criteria to undergo a cemented THA.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
75

participants targeted

Target at P50-P75 for not_applicable

Timeline
37mo left

Started Jan 2019

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress71%
Jan 2019May 2029

Study Start

First participant enrolled

January 1, 2019

Completed
6 months until next milestone

First Submitted

Initial submission to the registry

July 4, 2019

Completed
1 month until next milestone

First Posted

Study publicly available on registry

August 8, 2019

Completed
6.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2026

Completed
3 years until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2029

Expected
Last Updated

February 28, 2025

Status Verified

February 1, 2025

Enrollment Period

7.3 years

First QC Date

July 4, 2019

Last Update Submit

February 25, 2025

Conditions

Keywords

primary total hip arthroplastyRSAcementDual mobility cup

Outcome Measures

Primary Outcomes (1)

  • Migration of the acetabular cup

    Migration of the acetabular cup, measured with rontgen stereophotogrammetry analysis (RSA).

    2 years postoperative

Secondary Outcomes (5)

  • Migration of the acetabular cup

    6 weeks, 6 months and 1 year postoperative

  • Patient reported outcomes on physical functioning

    prior to surgery, 6 months, 1 year, 2 years and 5 years after surgery

  • Patient reported outcomes on quality of life.

    prior to surgery, 6 months, 1 year, 2 years and 5 years after surgery

  • Patient reported outcomes on pain

    prior to surgery, 6 months, 1 year, 2 years and 5 years after surgery

  • Patient Satisfaction

    prior to surgery, 6 months, 1 year, 2 years and 5 years after surgery

Study Arms (3)

BiMobile standard cement

ACTIVE COMPARATOR

25 patients will receive a cemented THA with a BiMobile dual mobility cup, in a standard size after optimal reaming, resulting in a cement mantle of approximately 2mm.

Procedure: BiMobile standard cement

BiMobile larger cement

ACTIVE COMPARATOR

25 patients will receive a cemented THA with a BiMobile dual mobility cup, in one size smaller than standard after optimal reaming, resulting in a cement mantle of approximately 4mm.

Procedure: BiMobile larger cement

Avantage standard cement

ACTIVE COMPARATOR

25 patients will receive a cemented THA with an Avantage dual mobility cup, in a standard size after optimal reaming, resulting in a cement mantle of approximately 2mm.

Procedure: Avantage standard cement

Interventions

BiMobile dual mobility cup, in a standard size after optimal reaming, resulting in a cement mantle of approximately 2mm.

BiMobile standard cement

BiMobile dual mobility cup, in one size smaller than standard after optimal reaming, resulting in a cement mantle of approximately 4mm.

BiMobile larger cement

Avantage dual mobility cup, in a standard size after optimal reaming, resulting in a cement mantle of approximately 2mm.

Avantage standard cement

Eligibility Criteria

Age65 Years+
Sexall
Healthy VolunteersNo
Age GroupsOlder Adult (65+)

You may qualify if:

  • Patient requiring an elective primary cemented THA.
  • Male patient ≥70 years old and female patient ≥65 years old.
  • Ability and willingness to follow instructions and to return for follow-up evaluations.
  • The patient is able to understand the meaning of the study and is willing to sign informed consent.
  • Understanding the Dutch language.

You may not qualify if:

  • The patient is morbidly obese, defined as Body Mass Index (BMI) of ≥ 40.
  • The patient is expected to need lower limb joint replacement for another joint within one year.
  • The patient has a systemic or metabolic disorder leading to progressive bone deterioration.
  • The patient has a deformity or disease located in other joints than the hip that needs surgery and that is limiting their ability to walk.
  • The patient has an active or suspected latent infection in or around the hip joint.
  • The patient's bone stock is compromised by a disease or infection which cannot provide adequate support and/or fixation to the prosthesis.
  • The patient is unable or unwilling to sign informed consent for this study.
  • The patient is deemed unsuitable for participation in the study based on the investigator's judgment.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

OLVG

Amsterdam, 1091 AC, Netherlands

RECRUITING

MeSH Terms

Conditions

Osteoarthritis, Hip

Condition Hierarchy (Ancestors)

OsteoarthritisArthritisJoint DiseasesMusculoskeletal DiseasesRheumatic Diseases

Study Officials

  • Rudolf Poolman, MD, PhD

    OLVG

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Nienk Willigenburg, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 4, 2019

First Posted

August 8, 2019

Study Start

January 1, 2019

Primary Completion

May 1, 2026

Study Completion (Estimated)

May 1, 2029

Last Updated

February 28, 2025

Record last verified: 2025-02

Locations