Bone Forming at Prosthetic Surfaces. Fingerprint2

NCT ID: NCT01623687

Last Updated: 2014-04-04

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

PHASE4

Total Enrollment

26 participants

Study Classification

INTERVENTIONAL

Study Start Date

2011-08-31

Study Completion Date

2015-03-31

Brief Summary

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What is the intensity of F-PET uptake in healthy and osteo arthritic femur and acetabulum, compared to the uptake adjacent to four analyzed endoprosthetic components 1½ and 6 months after surgery?

Detailed Description

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A clinical study of 26 patients, age 50-69 years, healthy unless osteoarthritis in one hip, randomized in four groups plus a reference group of same 26 patient´s contralateral healthy hip.

Intervention will be surgery with a total hip arthroplasty. The studied endoprosthetic components are: Cemented Lubinus SP II stem with a ceramic 32 mm head, a cemented Lubinus cross linked cup (Waldemar Link, Hamburg, Germany). Palacose cement with gentamycin, applied with 3:rd generation cementation technique will be used for those cemented implants.

Uncemented HA-coated Corail stem with a ceramic 32 mm head (DePuy, Johnson \& Johnson, USA), a fibrous metal Regenerex RingLoc cup (Biomet, Warsaw, Il, USA) All cups will have cross linked Ultra-high-molecular-weight polyethylene (UHWMP).

Clinical score, radiography and PET uptake of Fluoride tracer (SUV) adjacent to the prosthetic surfaces will be analyzed.

Conditions

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Osteo Arthritis

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Regenerex

Group Type ACTIVE_COMPARATOR

Component for acetabulum (Regenerex RingLoc cup)

Intervention Type DEVICE

A fibrous metal uncemented Regenerex RingLoc cup (Biomet, Warsaw, Il, USA)

Lub cup

Group Type ACTIVE_COMPARATOR

Components for the acetabulum (Lubinus cross linked cup)

Intervention Type DEVICE

cemented Lubinus cross linked cup (Waldemar Link, Hamburg, Germany).

SP II

Group Type ACTIVE_COMPARATOR

Arthroplasty components are for the femur (Cemented Lubinus SP II stem)

Intervention Type DEVICE

Cemented Lubinus SP II stem (Waldemar Link, Hamburg, Germany) with a ceramic 32 mm head.

Corail

Group Type ACTIVE_COMPARATOR

Arthroplasty components are for the femur (Corail stem)

Intervention Type DEVICE

Uncemented HA-coated Corail stem with a ceramic 32 mm head (DePuy, Johnsson \& Johnsson, USA).

Interventions

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Component for acetabulum (Regenerex RingLoc cup)

A fibrous metal uncemented Regenerex RingLoc cup (Biomet, Warsaw, Il, USA)

Intervention Type DEVICE

Components for the acetabulum (Lubinus cross linked cup)

cemented Lubinus cross linked cup (Waldemar Link, Hamburg, Germany).

Intervention Type DEVICE

Arthroplasty components are for the femur (Cemented Lubinus SP II stem)

Cemented Lubinus SP II stem (Waldemar Link, Hamburg, Germany) with a ceramic 32 mm head.

Intervention Type DEVICE

Arthroplasty components are for the femur (Corail stem)

Uncemented HA-coated Corail stem with a ceramic 32 mm head (DePuy, Johnsson \& Johnsson, USA).

Intervention Type DEVICE

Other Intervention Names

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Regenerex RingLoc cup Lubinus cross linked cup Cemented Lubinus SP II stem Uncemented HA-coated Corail stem with a ceramic 32 mm head

Eligibility Criteria

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Inclusion Criteria

* patients diagnosed to have unilateral hip osteo arthritis (Charnley group A) aimed for THA at the orthopedic clinic Gävle hospital.

Exclusion Criteria

* Systemic disease or medication affecting the skeleton
Minimum Eligible Age

50 Years

Maximum Eligible Age

69 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Uppsala University

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Gösta Ullmark

Role: STUDY_CHAIR

Ass Professor

Locations

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Centre for research and development Uppsala university/County council of Gävleborg

Gävle, , Sweden

Site Status RECRUITING

Countries

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Sweden

Central Contacts

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Gösta Ullmark, MD, PhD

Role: CONTACT

+46706466149

Facility Contacts

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Gösta Ullmark, MD, PhD

Role: primary

+46706466149

References

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Ullmark G, Sorensen J, Nilsson O, Maripuu E. Bone mineralisation adjacent to cemented and uncemented acetabular cups: analysis by [18F]-fluoride-PET in a randomised clinical trial. Hip Int. 2020 Nov;30(6):745-751. doi: 10.1177/1120700019861274. Epub 2020 Jul 19.

Reference Type DERIVED
PMID: 32686502 (View on PubMed)

Ullmark G, Sorensen J, Maripuu E, Nilsson O. Fingerprint pattern of bone mineralisation on cemented and uncemented femoral stems: analysis by [18F]-fluoride-PET in a randomised clinical trial. Hip Int. 2019 Nov;29(6):609-617. doi: 10.1177/1120700018815404. Epub 2018 Dec 6.

Reference Type DERIVED
PMID: 30520317 (View on PubMed)

Other Identifiers

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GUllmark Apr -12

Identifier Type: -

Identifier Source: org_study_id

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