NCT04297449

Brief Summary

Osteochondral defects (OCD) of the talus are pathologic lesions of the talar cartilage and its subchondral bone and might severely deteriorate the quality of life. For the treatment of multiple and/or large talar OCDs and in patients with failed previous surgical treatment the Ankle Spacer was developed. Six patients are included in a prospective clinical and radiological study with a follow-up of two years.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
8

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started Jan 2019

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 18, 2019

Completed
1.1 years until next milestone

First Submitted

Initial submission to the registry

March 2, 2020

Completed
3 days until next milestone

First Posted

Study publicly available on registry

March 5, 2020

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 19, 2021

Completed
8 months until next milestone

Study Completion

Last participant's last visit for all outcomes

September 3, 2021

Completed
Last Updated

September 16, 2021

Status Verified

September 1, 2021

Enrollment Period

2 years

First QC Date

March 2, 2020

Last Update Submit

September 15, 2021

Conditions

Keywords

Osteochondral defects (OCD) of the talusAnkle Spacerosteoarthritis of the ankle joint

Outcome Measures

Primary Outcomes (1)

  • Prospective 2-year Data Collection of the First 10 Patients after Ankle Spacer Implantation

    Prospective 2-year Data Collection of the First 10 Patients after Ankle Spacer Implantation

    2 Years

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

The average age is 41.7 years (20 - 70 years). Patients with multiple and/or large talar osteochondral defects (OCD) and patients with failed previous surgical treatment for OCD or osteoarthritis of the talus with up to grade two (Kellgren-Lawrence-Score) osteoarthritis on the tibial site are included.

You may qualify if:

  • Women and men aged 18-80 years
  • Indication for implantation of the ankle spacer

You may not qualify if:

  • Florid infections
  • Relevant circulatory disorders on the affected leg
  • Malposition of the OSG (upper ankle Joint) greater than 5 ° varus or valgus
  • Fractures of the OSG or near the ankle that were less than 6 months ago
  • Obesity with a BMI greater than 30 kg / m2
  • Known insulin-dependent diabetes mellitus
  • Known rheumatoid Arthritis
  • Osteoarthritis of the OSG II ° or higher according to Kellgren / Lawrence
  • Deformation of the OSG, which does not allow implantation of the ankle spacer

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Orthopädische Klinik der Medizinischen Hochschule Hannover im DIAKOVERE Annastift

Hanover, Lower Saxony, 30625, Germany

Location

MeSH Terms

Conditions

Osteochondritis Dissecans

Condition Hierarchy (Ancestors)

OsteochondritisBone DiseasesMusculoskeletal Diseases

Study Officials

  • Matthias Lerch, PD Dr.

    Orthopädische Klinik der Medizinischen Hochschule Hannover im DIAKOVERE Annastift

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
OTHER
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 2, 2020

First Posted

March 5, 2020

Study Start

January 18, 2019

Primary Completion

January 19, 2021

Study Completion

September 3, 2021

Last Updated

September 16, 2021

Record last verified: 2021-09

Locations