NCT01289834

Brief Summary

The purpose of this scientific study is to compare early migration of hip prostheses in respect to the bone in order to determine whether there is a clinical difference between the two investigated bone cements (which one is best suited for cementation of hip prostheses).

Trial Health

87
On Track

Trial Health Score

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

Enrollment
52

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Aug 2010

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

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

Study Start

First participant enrolled

August 1, 2010

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

September 17, 2010

Completed
5 months until next milestone

First Posted

Study publicly available on registry

February 4, 2011

Completed
5.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2016

Completed
7.8 years until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2024

Completed
Last Updated

April 18, 2024

Status Verified

April 1, 2024

Enrollment Period

5.7 years

First QC Date

September 17, 2010

Last Update Submit

April 17, 2024

Conditions

Keywords

RSABone Cement

Outcome Measures

Primary Outcomes (1)

  • Femoral component migration (roentgen stereo photogrammetric analysis - RSA)

    Migration of the femoral component is measured over time and in respect to the femur bone.

    2 years

Study Arms (2)

Hi-Fatigue Bone Cement

ACTIVE COMPARATOR

CPT femoral stems fixed with Hi-Fatigue Bone Cement

Device: Hi-Fatigue Bone Cement

Palacos Bone Cement

ACTIVE COMPARATOR

CPT femoral stems fixed with Palacos Bone Cement

Device: Palacos Bone Cement

Interventions

Hi-Fatigue bone cement is a new development of Aap Biomaterials, GmbH \& Co that has not yet been tested in the clinical setting. Hi-Fatigue has a medium to low viscosity. Laboratory tests confirm Hi-Fatigue bone cement to have properties equivalent to or better than the golden standard bone cement" Palacos. Hi-Fatigue is to be used without pre-chilling. When mixed at a room temperature of 21°C Hi-Fatigue has a low initial viscosity improving mixing and theoretically reducing the porosity of the cured cement.

Hi-Fatigue Bone Cement

Palacos Bone Cement has been used for 48 years and has a good reputation as the "gold standard" among bone cements (3). It is a high-viscosity cement with rapid application that makes it advantageous for use in orthopedic joint surgery. Palacos cement was developed in order to allow hand mixing of monomers and polymers in a dish in the operating room. Air pollution with toxic monomers in the operating room was a problem that was primarily solved by exhaust ventilation, later supplemented with vacuum mixing

Palacos Bone Cement

Eligibility Criteria

Age71 Years+
Sexall
Healthy VolunteersNo
Age GroupsOlder Adult (65+)

You may qualify if:

  • primary hip osteoarthritis
  • sufficient bone quality for total hip arthroplasty
  • age 71 years and above
  • no upper age limit if the patient is capable
  • informed and written consent
  • patient can only enter the project with one hip

You may not qualify if:

  • planned bilateral hip surgery
  • neuromuscular or vascular disease in the affected leg
  • preoperatively not found suitable for a hip arthroplasty
  • patients with osteoporosis based on former diagnosis or preoperative DEXA-scan
  • fracture sequelae, osteonecrosis or previous extensive hip surgery
  • patients who cannot refrain from taking NSAID post-operatively
  • continuous medical treatment with vitamin K antagonists (Warfarin) which is known to reduce the bone mass by a factor of 5
  • patients with metabolic bone disease
  • patients with rheumatoid arthritis
  • postmenopausal women in systemic estrogenic hormone substitution
  • patients with a continuous need of systemic cortisone treatment
  • non-Danish citizenship
  • patients who do not comprehend the Danish language (read and speak)
  • senile dementia
  • alcoholism - defined as men drinking more than 21 units a week and women drinking more than 14 units a week
  • +8 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Kjeld Soballe, Orthopaedic center, University of Aarhus

Aarhus, 8000, Denmark

Location

Related Publications (1)

  • Jorgensen PB, Krag-Nielsen N, Lindgren L, Morup RMS, Kaptein B, Stilling M. Radiostereometric analysis: comparison of radiation dose and precision in digital and computed radiography. Arch Orthop Trauma Surg. 2023 Sep;143(9):5919-5926. doi: 10.1007/s00402-022-04674-0. Epub 2022 Nov 23.

Study Officials

  • Kjeld Soballe, Professor MD

    Orthopaedic Center, Aarhus University Hospital

    PRINCIPAL INVESTIGATOR

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

September 17, 2010

First Posted

February 4, 2011

Study Start

August 1, 2010

Primary Completion

April 1, 2016

Study Completion

January 1, 2024

Last Updated

April 18, 2024

Record last verified: 2024-04

Locations