Effect Of The Use Of Navigation In The Alignment Obtained When Performing A Total Knee Arthroplasty In Obese Patients

NCT ID: NCT03865524

Last Updated: 2023-11-28

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

RECRUITING

Clinical Phase

NA

Total Enrollment

158 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-02-07

Study Completion Date

2024-06-30

Brief Summary

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NAOBE is a randomized, open and prospective clinical trial that evaluates the accuracy to achieve an adequate mechanical axis of the lower extremity in obese patients after total knee replacement.

Detailed Description

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Randomized, open and prospective clinical trial.

Following the surgical indication for a total knee replacement as treatment for symptomatic osteoarthritis and the confirmation of obesity (BMI equal or greater than 30 Kg/m2 ), patients will be randomly assigned (ratio 1:1) to one of the following treatments:

Control group: Total knee arthroplasty implanted with standard guides . Experimental group: Total knee arthroplasty(TKA) implanted with GPS navigation system Patient (or their legal guardian) must provide/sign the informed consent prior to inclusion in the study.

After the surgery, patients will be followed-up at 6 weeks, 3, 6 and 12 months. At those times, data regarding physical and radiological examinations, pain and functionality and health status questionnaires will be collected.

Conditions

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Osteoarthritis, Knee Obesity Arthropathy of Knee

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Randomized, Multicenter, prospective trial with a CE-marked medical device
Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Experimental

Total knee arthroplasty implanted with GPS navigation system.

Group Type EXPERIMENTAL

Total knee arthroplasty implanted with GPS navigation system

Intervention Type DEVICE

Obese patients undergoing Total Knee Arthroplasty, GPS achieved alignment

Control

Total knee arthroplasty implanted with standard guides.

Group Type ACTIVE_COMPARATOR

Total knee arthroplasty implanted with standard guides.

Intervention Type DEVICE

Obese patients undergoing Total Knee Arthroplasty, alignment achieved by using standard guides

Interventions

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Total knee arthroplasty implanted with GPS navigation system

Obese patients undergoing Total Knee Arthroplasty, GPS achieved alignment

Intervention Type DEVICE

Total knee arthroplasty implanted with standard guides.

Obese patients undergoing Total Knee Arthroplasty, alignment achieved by using standard guides

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Men and women over 18 years old.
* Written informed consent according to ICH / GCP and Spanish legislation, obtained before any study procedure.
* Patient with a BMI equal to or greater than 30 Kg / m2
* Patients with clinical and radiological criteria of knee osteoarthritis.
* Patients with indication for primary TKA according to medical criteria.

Exclusion Criteria

* Pregnancy or lactation.
* Inability to give informed consent in the absence of a legal representative.
* Subjects that are participating in a study with medicines or other medical devices.
* Those who show inability to follow the instructions or collaborate during the development of the study.
* If in the opinion of the researcher there are findings in the physical examination, abnormalities in the results of the clinical analyzes or other medical, social or psychosocial factors that could have a negative influence
* Having had a previous surgical procedure on or around the knee in the last 12 months (such as proximal tibial osteotomy, femoral osteotomy, open reduction and internal fixation for a fracture, patellectomy or patellar realignment).
* Need a simultaneous bilateral TKA.
* Have a varus angle or valgus ≥ 15 °.
* Total revision knee arthroplasty.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Pedro-José Torrijos-Garrido

OTHER

Sponsor Role lead

Responsible Party

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Pedro-José Torrijos-Garrido

Principal Investigator

Responsibility Role SPONSOR_INVESTIGATOR

Principal Investigators

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Pedro José Torrijos Garrido, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

Hospital Universitario Puerta de Hierro

Locations

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Hospital Universitario Puerta de Hierro Majadahonda

Majadahonda, Madrid, Spain

Site Status RECRUITING

Hospital Universitario Santa Cristina

Madrid, , Spain

Site Status RECRUITING

Countries

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Spain

Central Contacts

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Pedro José Torrijos Garrido, MD, PhD

Role: CONTACT

+34 91 191 74 85

Concepción Payares Herrera, MD

Role: CONTACT

+34 91 191 70 70

Facility Contacts

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Pedro José Torrijos Garrido, MD, PhD

Role: primary

+34 91 191 74 85

Paloma Aragonés Maza, MD

Role: primary

+34 91 191 74 85

Other Identifiers

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NAOBE

Identifier Type: -

Identifier Source: org_study_id