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ArthrodesisNCT01518543

Follow-up of Patient Implanted With the Staple ASTUS®

An observational study of Arthrodesis, run by Integra LifeSciences Services at 2 sites in 2 countries.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

There are many ways of performing arthrodesis in the foot and ankle. Dowel fusion is one of them. The in situ technique was first described by Ottolenghi et al. (1970) and was taken up by Baciu and Filibiu (1979). In the technique, they did take the dowel out before turning it. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Arthrodesis
How many people
5 participants
Where
2 sitesin 2 countries
Study dates
Apr 2010to Jan 2013
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Patient candidate for an arthrodesis in the following joints (Ankle, 1st MTP, Metatarso - Cuneiform (1st), Navicular - Cuneiform, Talo-Navicular, calcaneum - Cuboid) and whose surgeon has recommended the implantation of an ASTUS Staple from Newdeal-INTEGRA can be enrolled in this study

Who may be able to join

  • Age ≥ 18 years;
  • Have willingness to give his/her data transfer authorisation;
  • Patient candidate for an arthrodesis in the following joints (Ankle, 1st MTP, Metatarso - Cuneiform (1st), Navicular - Cuneiform, Talo-Navicular, calcaneum - Cuboid) and whose surgeon has recommended the implantation of an ASTUS Staple from Newdeal-INTEGRA.

Who cannot join

  • Patient candidate for an arthrodesis not listed in the inclusion criteria (as Subtalar arthrodesis and Metatarso-cuboid arthrodesis) will not be included in this study;
  • Patient re-operated due to a previous failed of fusion of the same joint will not be also included;
  • Patients will be excluded from the study if they have an history of prior mental illness or patient demonstrates that their mental capacity may interfere with their ability to follow the study protocol.

Trial locations and contacts

2 sites in 2 countries.

2 sites in 2 countries

Ireland1 site
  • Cappagh National Orthopaedic Hospital

    Dublin, 11

Other trials in Ireland

United Kingdom1 site
  • Clatterbridge General Hospital

    Metropolitan Borough of Wirral

Other trials in United Kingdom

About this study

There are many ways of performing arthrodesis in the foot and ankle. Dowel fusion is one of them.

The in situ technique was first described by Ottolenghi et al. (1970) and was taken up by Baciu and Filibiu (1979). In the technique, they did take the dowel out before turning it. The healing process takes place between surfaces of spongious bone. They showed excellent results with early weight bearing and healing within 12.5 weeks. Stranks et al. (1994) combined the dowel technique with screw fixation and claimed 95 % healing rate within 12.5 weeks. Others have not found this technique satisfactory in rheumatoid arthritis patients (Belt et al. 2001). The results were not compatible to common fusion techniques. The reason may be the circular bone gap of at least 1 mm left by the saw blade.

Read more

A new instrumentation and a new staple with a central wedge (ASTUS) avoid this gap and allow the dowel to be turned in situ without leaving in position. The staple is introduced into the joint line and will compress the dowel surfaces against the surrounding bone. Instruments are available to ensure the correct position and length of the dowel, and to rotate it in situ before the special wedge staple is introduced.

Dr Kofoed, the surgeon designer of the ASTUS Staple, has communicated on his first series with 83 arthrodesis. The purpose of this study is now to collect and publish data from several centers, several users.

The objective of this study is to obtain the percentage of healing 3 months after an implantation of the staple ASTUS.

Conditions
Arthrodesis
Keywords
arthrodesis, arthrodesis in the following joints:Ankle, 1st MTP, Metatarso - Cuneiform (1st), Navicular - Cuneiform, Talo-Navicular, Calcaneum - Cuboid;
Medical subject headings
Ankylosis

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT01518543
Study groupRoleWhat they receive
ASTUSPatient candidate for an arthrodesis in the following joints:Ankle,1st MTP, Metatarso - Cuneiform (1st), Navicular - Cuneiform, Talo-Navicular, Calcaneum - Cuboid, and whose surgeon has recommended the implantation of an ASTUS Staple from Newdeal-INTEGRA.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Rate of healing at 3 month

    Measured: 3 month post implantation

Secondary outcomes (2)
  1. Complications rate

    Number of patients with an adverse event related to the device

    Measured: 12 month follow-up

  2. Length of the surgery

    We collect the information of the length of the surgery for the implantation of the Astus Device

    Measured: The time is the day of the surgery, the day the implantation of the device is done

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted26 Jan 2012 (estimated)
  2. Study startApr 2010
  3. Primary completionJan 2012
  4. Study completionJan 2013

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case only
Time perspective
Prospective
Enrolment
5 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01518543
Sponsor's protocol ID
RECON-EMEA-04
Status last verified
Sep 2014
First submitted
20 Jun 2011
Last updated
11 Sep 2014
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

An observational study of Arthrodesis, run by Integra LifeSciences Services at 2 sites in 2 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 11 Sep 2014. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in Ireland, United Kingdom. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study was stopped early. Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Rate of healing at 3 month (time frame: 3 month post implantation). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 11 Sep 2014.

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