The Efficacy of Different Immobilization Times After Achilles Tendon Rupture Surgery

December 6, 2020 updated by: Peking University Third Hospital

A Prospective Randomized Controlled Clinical Trial on the Comparison of the Treatment Outcomes of Different Immobilization Times After the Repair of Achilles Tendon Rupture

This study is a prospective randomized controlled clinical study. After the Achilles tendon rupture repaired by our suture technique, patients were randomly divided into 4 groups, and the brace fixation time was 0, 2, 4 and 6 weeks, respectively, to study the difference in efficacy between the groups.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Unknown

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

This prospective randomized controlled clinical study is designed to compare the treatment outcomes of different immobilization times by dividing the patients into four groups-A, B, C, and D-based on the amount of immobilization time (0, 2, 4, and 6 weeks, respectively) that include a similar rehabilitation protocol. The inclusion criteria are patients with an acute closed single-legged complete Achilles tendon rupture, and an age of 18 to 60 years. The exclusion criteria are patients with prior Achilles tendon rupture or other situations that affect their lower limb functions or tendon healing (e.g., autoimmune disease, diabetes mellitus, systemic corticosteroid treatment). Other exclusion criteria are an inability to complete our suture technique (e.g., the distance from the rupture site to the Achilles tendon insertion is less than 3.5 cm), or those without rehabilitation or follow-up outcomes. All patients will be treated surgically with the same suture technique and undergo a similar rehabilitation protocol after the brace is removed.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Anticipated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
240

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • 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 Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • China
    • Beijing
      • Beijing, Beijing, China, 100191
        • Recruiting
        • Peking University Third Hospital
        • Contact:
        • 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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 60 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • acute closed single-legged complete Achilles tendon rupture
  • age of 18 to 60 years.

Exclusion Criteria:

  • patients with prior Achilles tendon rupture or other situations that affected their lower limb functions or tendon healing (e.g., autoimmune disease, diabetes mellitus, systemic corticosteroid treatment).
  • an inability to complete our suture technique (e.g., the distance from the rupture site to the Achilles tendon insertion was less than 3.5 cm)
  • those without rehabilitation or follow-up outcomes.

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: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: 0-week immobilization
0-week brace immobilization after the surgery will be conducted.
Procedure: immobilization duration
brace immobilization duration after open surgery for Achilles tendon rupture
Experimental: 2-week immobilization
2-week brace immobilization after the surgery will be conducted.
Procedure: immobilization duration
brace immobilization duration after open surgery for Achilles tendon rupture
Other: 4-week immobilization
4-week brace immobilization after the surgery will be conducted.
Procedure: immobilization duration
brace immobilization duration after open surgery for Achilles tendon rupture
Other: 6-week immobilization
6-week brace immobilization after the surgery will be conducted.
Procedure: immobilization duration
brace immobilization duration after open surgery for Achilles tendon rupture

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
the time of return to light sports activity
Time Frame: from operation to 1-year follow-up after the surgery
when the patients are able to do jogging or rapid walk after the surgery, the time will be recorded.
from operation to 1-year follow-up after the surgery

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
range of motion (ROM) recovery time
Time Frame: from operation to 1-year follow-up after the surgery
the recovery time will be recorded when the ROM is similar to that of the uninjured side.
from operation to 1-year follow-up after the surgery
recovery time of the single-legged heel rise height (SHRH)
Time Frame: from operation to 1-year follow-up after the surgery
The heel rise height is measured as the distance from the ground to the heel when the patient lift the heel while keeping the knee straight. The recovery time is noted when the SHRH is similar to that of the opposite leg.
from operation to 1-year follow-up after the surgery

Other Outcome Measures

Other Outcome Measures

For clinical trials, a planned measurement described in the protocol that is used to determine the effect of an intervention/treatment on participants. For observational studies, a measurement or observation that is used to describe patterns of diseases or traits, or associations with exposures, risk factors, or treatment. Types of outcome measures include primary outcome measure and secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
American Orthopaedic Foot and Ankle Society (AOFAS) hindfoot score
Time Frame: 2, 4, 6, 8, 10, 12, 14, 16, 24, and 48 weeks after the surgery
The AOFAS score ranges from 0 to 100, with a healthy hindfoot receiving 100 points.
2, 4, 6, 8, 10, 12, 14, 16, 24, and 48 weeks after the surgery
the Achilles tendon Total Rupture Score (ATRS)
Time Frame: 2, 4, 6, 8, 10, 12, 14, 16, 24, and 48 weeks after the surgery
The ATRS includes 10 items; each item has a score ranging between 0 and 10 on a Likert scale, with 100 indicating no major limitations.
2, 4, 6, 8, 10, 12, 14, 16, 24, and 48 weeks after the surgery
visual analogue scale (VAS)
Time Frame: 2, 4, 6, 8, 10, 12, 14, 16, 24, and 48 weeks after the surgery
VAS pain score is from 0 to 10, the higher score demonstrate the more severe pain.
2, 4, 6, 8, 10, 12, 14, 16, 24, and 48 weeks after the surgery

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Peking University Third Hospital

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)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
September 1, 2020

Primary Completion (Anticipated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
September 1, 2022

Study Completion (Anticipated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
October 1, 2022

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
September 16, 2020

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
December 6, 2020

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
December 11, 2020

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
December 11, 2020

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
December 6, 2020

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
September 1, 2020

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • PekingUTH LY ATR
  • 81702127 (Other Grant/Funding Number: National Natural Science Foundation of China)
  • 2018YFF0301100 (Other Grant/Funding Number: Science and Technology fund of Winter Olympics)

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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