Application of 3D Printing Technology in Subtalar Arthrodesis

November 18, 2018 updated by: Xiaojun Duan, Southwest Hospital, China
This study aims to use 3D printing personalized plate to locate the position in which the K-wires would be drilled to save operation time and decrease the number of times that the K-wires are drilled.

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Detailed Description

Subtalar arthrodesis is a standard procedure for treating joint injuries in terminal stage. In this study, in order to improve efficacy and shorten the operation time, personalized plate is prepared before surgery. During the surgery, the articular cartilage is scraped, then the fusion joint is reset to the functional position; the 2-2mm Kirschner wires are drilled with the assistance of the personalized plate,then the position of the fusion joint as well as the Kirschner wires are confirmed under the C-arm; lastly, cannulated screws are screwed in along the Kirschner wires for effective fixation.

In the past surgeries without personalized plate, surgeons could only rely on their experience to locate the position for drilling and then confirm under the C-arm. This would prolong the operation time and be more traumatic to the patients. Using 3D printing personalized plate can solve this problem.

The preparation procedure for the personalized plate: firstly, ankle model are established according to the patient's CT scan data, then select modular pieces to prepare the personalized plate, sterilize it for future use. Apply conventional surgical treatment to the subtalar surface, reset the fusion joint to the functional position, and drill 2-2mm Kirschner wires with the guidance of the plate. If the locations of the fusion joint and the Kirschner wires are satisfying under the C-arm inspection, drill the hollow screw for final fixation.

Study Type

Interventional

Enrollment (Anticipated)

10

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • China
    • Chongqing
      • Chongqing, Chongqing, China, 400030
        • Recruiting
        • Southwest Hospital
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

14 years and older (Child, Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Patients who receive subtalar arthrodesis and consider internal fixation with screws

Exclusion Criteria:

  • Patients who receive subtalar arthrodesis but do not consider internal fixation with screws

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Device Feasibility
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: 3D printing personalized plate
3D printing personalized plate will be used to guide the Kirschner wires in the joint fusion surgery.
Device: 3d printing personalized plate
3d printing personalized plate will be used in the subtalar arthrodensis

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Operation time
Time Frame: Intraoperative
Operation time for internal fixation
Intraoperative

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Postoperative subtalar VAS score
Time Frame: Postoperative 1,6,12 months
Postoperative subtalar VAS score of the patients
Postoperative 1,6,12 months
Fusion rate
Time Frame: Postoperative 1,6,12 months
Fusion rate of the subtalar joint
Postoperative 1,6,12 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Southwest Hospital, China

Investigators

  • Principal Investigator: Xiaojun Duan, MD, Southwest Hospital, China

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

January 1, 2014

Primary Completion (Actual)

August 30, 2018

Study Completion (Anticipated)

December 31, 2018

Study Registration Dates

First Submitted

May 5, 2017

First Submitted That Met QC Criteria

May 12, 2017

First Posted (Actual)

May 15, 2017

Study Record Updates

Last Update Posted (Actual)

November 20, 2018

Last Update Submitted That Met QC Criteria

November 18, 2018

Last Verified

November 1, 2018

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • CfJSSouthwestH

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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