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Clinical Trial Details — Status: Not yet recruiting

Administrative data

NCT number NCT04740749
Other study ID # S64761
Secondary ID
Status Not yet recruiting
Phase N/A
First received
Last updated
Start date September 2021
Est. completion date December 2046

Study information

Verified date June 2021
Source Universitaire Ziekenhuizen Leuven
Contact Friedl Sinnaeve
Phone +32 16 34 08 89
Email friedl.sinnaeve@uzleuven.be
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

In the treatment of malignant bone tumors, it may be necessary to remove large areas of the femur. To replace these large parts of missing bone, a prosthesis can be used. One innovative technology developed by Biomet is the Compress® Compliant Pre-Stress System (CPS; Zimmer-Biomet, Warsaw, USA). This fixation device uses compression, via a short traction bar, to stimulate osteointegration at the bone-prosthetic interface, promote hypertrophy of the loaded bone, and avoid stress bypass of the host bone around a stiff intramedullary stem. Young patients cured of tumors have a long life expectancy and a compelling need for prosthetic fixation that is equally durable. Good bone fixation is a prerequisite for implant longevity. Although the initial results are encouraging, there is a need for additional mid- to long-term survival data from larger patient series showing longevity of the system, as well as reporting of functional outcome. Furthermore, to the best of our knowledge, no study examining the survival of the device using prospective data already exists. In addition, no studies were found examining the quality of life of the patients with the CPS system.


Description:

In the treatment of malignant bone tumors, it may be necessary to remove large areas of the femur. To replace these large parts of missing bone, a prosthesis can be used. One innovative technology developed by Biomet is the Compress® Compliant Pre-Stress System (CPS; Zimmer-Biomet, Warsaw, USA). This fixation device uses compression, via a short traction bar, to stimulate osteointegration at the bone-prosthetic interface, promote hypertrophy of the loaded bone, and avoid stress bypass of the host bone around a stiff intramedullary stem. Young patients cured of tumors have a long life expectancy and a compelling need for prosthetic fixation that is equally durable. Good bone fixation is a prerequisite for implant longevity. Since 1999, the CPS has been routinely placed on the orthopedics - UZ Leuven service and, as a result, more than 100 patients have been treated in this way. However, there are only few studies reporting on long-term performance of this system. In addition, limited data reporting functional outcome were found. Although the initial results are encouraging, there is a need for additional mid- to long-term survival data from larger patient series showing longevity of the system, as well as reporting of functional outcome. Furthermore, to the best of our knowledge, no study examining the survival of the device using prospective data already exists. In addition, no studies were found examining the quality of life of the patients with the CPS system.


Recruitment information / eligibility

Status Not yet recruiting
Enrollment 200
Est. completion date December 2046
Est. primary completion date December 2046
Accepts healthy volunteers No
Gender All
Age group 7 Years and older
Eligibility Inclusion Criteria: - Patients are/will be operated from 26/08/1999 onwards in UZ Leuven - Implantation of the Compress Compliant Pre-Stress Device - Informed consent obtained - Patients are able to complete the questionnaires - Age: minimum 7 years old Exclusion Criteria: - N/A

Study Design


Related Conditions & MeSH terms


Intervention

Device:
Compress Compliant Pre-Stress System
Treatment of malignant femor tumors with the Compress Compliant Pre-Stress System

Locations

Country Name City State
n/a

Sponsors (1)

Lead Sponsor Collaborator
Universitaire Ziekenhuizen Leuven

Outcome

Type Measure Description Time frame Safety issue
Primary Compress device survival Revision will be used to determine implant survival. Revision will be defined as the explantation of any fixation mechanism: anchor plug, traction bar, spindle, sleeve, fixation pin 25 years
Secondary Postoperative complications Clinical assessment of postoperative complications. Complications will be classified acoording to Henderson classification. 25 years
Secondary Partial weight-bearing (crutches): duration Clinical assessment to determine duration of partial weight-bearing 25 years
Secondary Radiography: signs of osseointegration Radiographic assessment 25 years
Secondary EORTC Core Quality of Life questionnaire (QLQ-C30) To assess the quality of life 25 years
Secondary Functional status Musculoskeletal Tumor Society scoring system (MSTS) is used to determine the the physical and mental health 25 years
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