LEGION™ Primary Safety and Efficacy

Study Results

Results available

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Basic Information

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Recruitment Status

TERMINATED

Clinical Phase

NA

Total Enrollment

128 participants

Study Classification

INTERVENTIONAL

Study Start Date

2009-09-09

Study Completion Date

2020-12-17

Brief Summary

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This study will look at the health results of using the LEGION™ Primary Knee System over a period of ten (10) years. This type of surgery uses an artificial knee made of plastic and metal. This study will enter subjects who suffer from a variety of conditions that have caused at least one of their knees to become nonfunctional. You are being asked to participate in the study because you have significant problems with your knee(s) and your study surgeon has determined that your knee(s) must be surgically replaced to improve your condition. If you decided to participate in this study, you will be one of approximately one hundred thirty-eight (138) subjects in the study.

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Detailed Description

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This is a prospective, consecutive series, multi-center clinical study of the LEGION™ Total Knee System. The study design was selected to assess the safety and effectiveness profile of the LEGION™ Total Knee System in subjects with degenerative knee disease requiring primary total knee replacement.

Subjects meeting the entrance criteria specified in this protocol will be approached to participate in the study and enrolled sequentially. Any consenting subjects meeting the inclusion criteria are not to be excluded unless they do not consent to participate. A nonrandomized, consecutive series of up to 138 subjects will be enrolled at a maximum of 8 research sites, with an expectation of 18 subjects (up to a maximum of 28 subjects) to be enrolled at each site. When 138 subjects are enrolled from all sites, enrollment will be stopped, regardless of the number contributed from each site. Sites will be selected for participation in the study at the discretion of Smith \& Nephew.

Follow-up clinical assessments will be at Operative/Discharge, 3 months, 1 year, 2 years, 3 years, 5 years, 7 years and 10 years. Each subject will receive a standard radiographic evaluation at discharge that will be used for baseline analysis. Additional radiographic analysis will be performed at Operative/Discharge, 3 months, 1 year, 2 years, 3 years, 5 years, 7 years and 10 years.

Conditions

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Osteo Arthritis Knee Total Knee Replacement

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

OTHER

Blinding Strategy

NONE

Study Groups

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LEGION™ Primary

LEGION™ Primary Total Knee Arthroplasty (TKA)

Group Type OTHER

Total Knee Arthroplasty using LEGION™ Total Knee System

Intervention Type PROCEDURE

Primary Total Knee Arthroscopy using LEGION™ Total Knee System

Interventions

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Total Knee Arthroplasty using LEGION™ Total Knee System

Primary Total Knee Arthroscopy using LEGION™ Total Knee System

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* Subject is a candidate for the LEGION™ Primary Knee System according to the instructions for use
* Subject is of legal age and skeletally mature
* Subject is willing to sign and date an ethics-approved consent form and participate in the study
* Subject is willing to be available for ten-year follow-up postoperatively.

Exclusion Criteria

* Subject with immunosuppressive disorders
* Subject has grossly insufficient femoral or tibial bone stock
* Subject has an active localized or systemic infection
* Subject is pregnant
* Subject psychological or neurological conditions that would impair the subject's ability or willingness to restrict activities or follow medical advice during the course of this study
* Subject is a prisoner.

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No