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Mpact 3D Metal Cup PMS

NCT04801680 · Status: RECRUITING · Type: OBSERVATIONAL · Enrollment: 500

Last updated 2024-05-01

No results posted yet for this study

Summary

Cementless fixation, with or without screw augmentation, has evolved during the past few decades as the preferred method for acetabular reconstruction. Although major improvements have been recorded with regard to clinical outcomes and survivorship, acetabular component loosening remains among the most common causes of failure and revision. Patient age, poor bone quality and conditions, such as osteonecrosis and dysplasia, have been observed to influence negatively long-term clinical results.

Initial stability is fundamental for survivorship of cementless cups. Prerequisites to achieve durable cementless cup fixation are close contact with viable native bone, primary mechanical stability and secondary bone integration. Press-fit techniques provide optimal conditions for bone ingrowth and fixation but research focused on cup material in order to improve primary stability. Pore size, bone-implant apposition, and material properties all influence bone ingrowth and long-term stability.

Biological ingrowth surfaces have become a standard prosthetic element in reconstructive hip surgery. A material's properties, three-dimensional architecture, and surface texture all play integral parts in its biological performance. Trabecular metal is an important new biomaterial that has been introduced to enhance the potential of biological ingrowth as well as provide a structural scaffold in cases of severe bone deficit. The continuity between the porous and solid parts has been specifically developed to overcome the limitations of the traditional porous coatings. In fact, the absence of an interface between the trabecular structure and the bulk material provides greater structural solidity and thus higher resistance to detachment and corrosion. Initial clinical applications have focused on bone restoration in tumor and salvage cases and in primary and revision reconstructive cases where the increased biological fixation would be of clinical benefit. However the bone ingrowth potential and mechanical integrity of this material offer exciting options for orthopedic reconstructive surgeons such as difficult THA cases, such as patients with high demands, subjects affected by severe hip conditions (i.e. osteonecrosis, dysplasia) or with extremely poor bone quality. Medacta Mpact 3D Metal cup, is an acetabular cup realized using the EBM (Electron Beam Melting) powder technology; this production method offers a high friction and scratch-fit feel for the initial stability, without the need of any additional coating. Moreover the 3D Metal structure creates a favorable environment for bone thus providing secondary fixation.

The aim of this study is to evaluate the long term clinical and radiological performance of MPact 3D Metal acetabular component.

Conditions

  • Total Hip Arthroplasty

Interventions

DEVICE

Mpact 3D metal cup

Subjects, among those whose clinical condition makes them eligible for a primary total hip arthroplasty, will be invited to participate to the study during preoperative visit. They'll receive the Mpact 3D metal cup device

Sponsors & Collaborators

  • Medacta International SA

    lead INDUSTRY

Eligibility

Min Age
18 Years
Max Age
75 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2019-11-07
Primary Completion
2032-12-07
Completion
2032-12-07
FDA Device
Yes

Countries

  • Italy

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04801680 on ClinicalTrials.gov