Kinematics After Total Knee Arthroplasty

NCT ID: NCT03093077

Last Updated: 2018-04-25

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

WITHDRAWN

Clinical Phase

NA

Study Classification

INTERVENTIONAL

Study Start Date

2016-11-30

Study Completion Date

2018-04-10

Brief Summary

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The purpose of this study is to evaluate and compare implant kinematics of conventional mechanically aligned and anatomically aligned total knee arthroplasties (TKA) at 1 year post-operatively.

Detailed Description

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Participants will be randomized to receive a primary TKA using either an anatomic alignment or a conventional mechanical alignment technique.

Participants will undergo a kinematic analysis of a deep knee bend using single-plane fluoroscopy at 1 year post-operatively. The primary outcome will be based on the 6 degree of freedom kinematics and associated joint component proximity during the knee bend task. Secondary outcomes include the Knee Society Score, the Knee Injury and Osteoarthritis Outcome Score, and the Forgotten Knee Score.

Conditions

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Osteoarthritis, Knee

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

DOUBLE

Participants Outcome Assessors

Study Groups

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Anatomic alignment

The aim of anatomic alignment is to recreate an individual's pre-operative alignment using the DePuy ATTUNE total knee arthroplasty system.

Group Type EXPERIMENTAL

DePuy ATTUNE total knee arthroplasty system

Intervention Type DEVICE

A standard midvastus approach will be used for both alignment technique groups. This is a standard approach for exposing the knee joint for TKA.

Mechanical alignment

The aim of mechanical alignment is to achieve a neutral mechanical alignment regardless of pre-operative status, using the DePuy ATTUNE total knee arthroplasty system.

Group Type ACTIVE_COMPARATOR

DePuy ATTUNE total knee arthroplasty system

Intervention Type DEVICE

A standard midvastus approach will be used for both alignment technique groups. This is a standard approach for exposing the knee joint for TKA.

Interventions

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DePuy ATTUNE total knee arthroplasty system

A standard midvastus approach will be used for both alignment technique groups. This is a standard approach for exposing the knee joint for TKA.

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Males and females
* Primary arthroplasty for treatment of osteoarthritis
* Age between 40 and 80 years old
* Willingness to provide written consent for study participation

Exclusion Criteria

* Revision arthroplasty
* Pre-operative knee flexion lower than 90 degrees
* Varus knee deformity greater than 15 degrees
* Pre-operative valgus knee deformity
* Presence of infections, highly communicable diseases or metastatic disease
* Significant neurological or musculoskeletal disorders or disease that may interfere with normal gait or weight bearing
* Congenital, developmental, or other bone disease or previous hip surgery that may, in the surgeon's judgment, interfere with total knee prosthesis survival or success
* Presence of previous prosthetic knee or hip replacement device
* BMI \> 40
* Pregnant women
Minimum Eligible Age

40 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Kristin Zhao, PhD

OTHER

Sponsor Role lead

Responsible Party

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Kristin Zhao, PhD

Principal Investigator

Responsibility Role SPONSOR_INVESTIGATOR

Principal Investigators

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Kristin D. Zhao, Ph.D.

Role: PRINCIPAL_INVESTIGATOR

Mayo Clinic

Locations

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Mayo Clinic in Rochester

Rochester, Minnesota, United States

Site Status

Countries

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United States

Other Identifiers

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15-008300

Identifier Type: -

Identifier Source: org_study_id

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