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CompletedNCT03166267Updated Jul 6, 2021

Real Life Weight Bearing After Tibial Fractures

An observational study in Tibial Fractures and External Fixation Pin Site Infection, sponsored by AO Innovation Translation Center. Completed at 1 site in Germany. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2021-07-06.

Sponsored by AO Innovation Translation Center · Observational

Study type
Observational
Model
Case-only
Time perspective
Prospective
Enrollment
10
Ages
18 Years and older
Sex
All
01

Study summary

In this prospective case series patients with a tibial fracture are monitored with smart biofeedback systems to document the healing progression and real life weight.

Read the detailed description

Ten patients treated with a large external fixator after tibial fracture will be enrolled for this prospective case series.

Patients will be equipped with the AO Fracture Monitor (a data logger device) attached post-operatively to a connection rod of the external fixator. The device continuously measures deformation of the fixator frame due to normal weight bearing for up to 12 months by means of a strain gauge. The strain signal is processed on-board and several parameters related to the loading characteristics of the fracture are stored.

Simultaneously, patients will be equipped with a fully integrated sensor insole (OpenGo Insole, Moticon GmbH, München). This product offers long-term weight bearing data (recording and storage) and allows non-invasive documentation of real life loading in patients without affecting the daily life activity of the patient. Recording of weight-bearing data will be obtained for a maximum of 4 months.

02

Conditions studied

  • Tibial Fractures
  • External Fixation Pin Site Infection
03

In context

Fractures, Bone

2,261 studies on the registry are indexed under Fractures, Bone; 325 are open to participants now.

This study's enrollment of 10 is below the median of 100 across 675 observational studies indexed under Fractures, Bone.

Browse Fractures, Bone studies →

Lead sponsor

AO Innovation Translation Center is the lead sponsor of 31 studies on the registry; 11 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

All eligible patients from the participating clinic are invited to participate in the study.

Inclusion criteria

  • Age 18 years and older
  • Diagnosis of tibial fracture (AO 41-43)
  • External fracture fixation with large external fixator
  • Capable of at least partial weight-bearing
  • Bone segment transport (if applicable) must be completed
  • Informed consent obtained, i.e.:

    • Ability to understand the content of the patient information/ Informed Consent Form (ICF)
    • Willingness and ability to participate in the clinical investigation according to the Clinical Investigation Plan (CIP)
    • Signed and dated Ethics Committee (EC)

Exclusion criteria

Exclusion Criteria:

  • External fixation as temporary stabilization
  • Bone fragment compression
  • Joint-bridging external fixation
  • Any not medically managed severe systemic disease
  • Recent history of substance abuse (i.e. recreational drugs, alcohol) that would preclude reliable assessment
  • Pregnancy or women planning to conceive within the study period
  • Prisoner
  • Participation in any other medical device or medicinal product study within the previous month that could influence the results of the present study
05

Study design

Observational model
Case-only
Time perspective
Prospective
Enrollment
10 participants (actual)
Patient registry
No

Interventions

  • DeviceExternal fixator

    Tibia fracture (AO 41-43) treated with external fracture fixation (large external fixator)

06

What researchers measure

Primary outcomes

  1. Loading patterns

    Average peak force per step

    Time frame: Up to 4 months

Secondary outcomes

  1. Activity

    Patient activity measured as number of loading events per day

    Time frame: Up to 4 months

  2. Healing

    Expert opinion

    Time frame: Up to 4 months

  3. Pain level

    Numeric rating scale

    Time frame: Up to 4 months

07

Study locations

1 site
  • BGU Tübingen
    Tübingen, D-72076, Germany
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 6, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03166267
Lead sponsor
AO Innovation Translation Center
Responsible party
Sponsor
First posted
May 25, 2017
Start date
May 24, 2018
Primary completion
Feb 24, 2021
Completion
Feb 24, 2021
Last update
Jul 6, 2021

Study contacts

Stefan Döbele, MD
principal investigator · BGU Tübingen

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Oct 2020. You cannot join it, but the record below documents what was studied.

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