ClinicalTrials.gg
TerminatedNCT06400732Updated Apr 2, 2026

Post Market Evaluation of Clinical Safety and Performance of the Fitbone Transport and Lengthening System

An observational study in Fractures, Bone, Fractures, Closed and Fractures, Open, sponsored by Orthofix Inc.. Terminated at 9 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-04-02.

Sponsored by Orthofix Inc. · Observational

Why this study was terminated
Business decision
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
1
Ages
18 Years and older
Sex
All
01

Study summary

This is an open-label, prospective, observational, post-market, uncontrolled, multi-center study intended to evaluate the safety and clinical performance of the FITBONE Transport and Lengthening Nail when used according to the manufacturer's Instructions for Use. The FITBONE Transport \& Lengthening Nail is a variant of the FITBONE TAA Nail, which has been commercially available in the US since 2017. The clinical performance and safety of the medical device have been assessed based on mechanical and biomechanical tests and clinical data obtained from scientific publications on equivalent products. This study intends to prospectively obtain clinical safety and performance data on the device, as used according to the manufacturer's Instructions for Use, in the real-world clinical setting.

The data obtained from this study will also be used to provide additional clinical evidence to support product registrations, as required by various regulatory bodies outside the US.

Eligible participants will have been selected by their physician to be treated with the FITBONE Transport and Lengthening System as part of treatment for their condition or injury. All procedures will be according to the physician's standard care practices. There are no study-specific procedures or requirements for participants in this study.

Read the detailed description

This prospective, observational clinical study intends to actively collect clinical data related to the use of the FITBONE Transport and Lengthening System in a representative number of users and patients, observed in the short (\<1yr) and medium (approximately 1 and 2 years) term after implantation of the device.

Co-Primary Endpoints:

Primary Safety Endpoint: Percentage of unplanned reoperation and/or revision surgery. Instances of re-operation and/or revision as categorized as "planned" or "unplanned" by the surgeon.

Primary Performance Endpoint: Percentage of achievement of planned length. Length of the planned transport (and lengthening when applicable) vs the actual overall length of the segment at the time of nail extraction.

Secondary Endpoints:

  • Bone Healing: Radiographic evidence of healing of 3 out of 4 cortices
  • Consolidation Index: Time to achieve bone healing (days)/ achieved length (cm)
  • Distraction Index: Time of distraction (days)/ achieved length (cm)
  • Nail Reliability: Ratio between the number of successfully completed lengthening treatments and the number of implanted lengthening devices
  • Nail Accuracy: Ratio between the achieved length and the planned length
  • Time to achieve transport and lengthening
  • Loss of Range of Motion at full consolidation: degrees from baseline
  • Nail Extraction complications/failures
  • Patient-reported outcome measures
  • Mobility measures
  • Adverse events

Safety Endpoint:

The percentage of cases in which unplanned reoperations and/or revision surgery occurred.

02

Conditions studied

  • Fractures, Bone
  • Fractures, Closed
  • Fractures, Open
  • Fracture of Femur
  • Fracture Nonunion
  • Fracture of Tibia
  • Limb Deformity
  • Limb Fracture
  • Limb Defect
  • Limb Asymmetry

Keywords

  • Limb Lengthening
  • Limb Deformity Correction
  • Bone Transport
03

In context

Fractures, Bone

723 studies on the registry are indexed under Fractures, Bone; 114 are open to participants now.

This study's enrollment of 1 is below the median of 130 across 239 observational studies indexed under Fractures, Bone.

Browse Fractures, Bone studies →

Lead sponsor

Orthofix Inc. is the lead sponsor of 17 studies on the registry; 1 is 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

Adult patients who are indicated, as described in the Instructions for Use, for treatment with the Fitbone Transport and Lengthening System for correction of limb deformity.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. ≥ 18 years old
  2. Expressed willingness to participate in the study by signing and dating the form
  3. Has a segmental bone defect, or limb length defect of at least 2 mm up to ≤ 120 mm, considered suitable for correction with an intramedullary lengthening nail, as confirmed by radiographs.

Exclusion criteria

Exclusion Criteria:

  1. Conditions that tend to retard healing such as blood supply limitations, peripheral vascular disease, or evidence of inadequate vascularity
  2. Poor bone quality that would prevent adequate fixation of the device
  3. Compromised capacity for healing
  4. Metal allergies and sensitivities
  5. Patients in which the implant would cross open, healthy epiphyseal growth plates
  6. Insufficient intramedullary space which would lead to cortical weakening or vascular damage during implantation
  7. Body weight of > 100 kg
  8. No free access for proximal insertion of the intramedullary transport and lengthening nail (e.g., coxa valga)
  9. No reliable exclusion of bone infection
  10. Expected non-compliance, mentally ill patient or patient with clouded consciousness
  11. Pregnancy
  12. Pre-existing nerve palsies
  13. Bone defect larger than 120 mm
  14. Gustilo Open Fracture Classification Grade IIIB or IIIC
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
1 participant (actual)
Patient registry
No

Groups and cohorts

  • Treatment Group

    Participants treated for a limb defect with the Fitbone Transport and Lengthening System

    Device: Fitbone Transport and Lengthening System

Interventions

  • DeviceFitbone Transport and Lengthening System

    Implantation of the intramedullary Fitbone Transport Nail and subsequent bone segment transport and, optionally, lengthening.

    Also known as: Fitbone Transport Nail

06

What researchers measure

Primary outcomes

  1. Safety - Percentage of unplanned reoperation and/or revision surgery.

    Instances of re-operation and/or revision as categorized as "planned" or "unplanned" by the surgeon. Specifically, adverse events consisting of re-operation/revision surgery deemed to be related to the device or procedure will be tabulated and the incidence will be determined by dividing this by the total number of patients treated (expressed as %).

    Time frame: 1 year post-operative

  2. Performance - Percentage of achievement of planned lengthening. Length of the planned transport (and lengthening when applicable) vs the actual overall length of the segment at the time of nail extraction.

    Incidence of participants in which successful attainment of target lengthening/distraction was obtained. Specifically, the outcome measure will be based on the difference between the physician's pre-specified target length/distraction to be obtained and the actual lengthening/distraction obtained following treatment. The physician will make a determination if this difference is acceptable for each subject. The incidence of successful lengthening will be determined by the number of clinical acceptable results divided by the total number of patients treated (expressed as %).

    Time frame: 1 year post-operative

Secondary outcomes

  1. Effectiveness - Bone Healing

    Radiographic evidence of healing of 3 out of 4 cortices

    Time frame: 1 year and 2 years post-operative

  2. Effectiveness - Consolidation Index

    Time to achieve bone healing (days)/ achieved length (cm)

    Time frame: 1 year and 2 years post-operative

  3. Effectiveness - Distraction Index

    Time of distraction (days)/ achieved length (cm)

    Time frame: 1 year post-operative

  4. Effectiveness - Nail Reliability

    Ratio between the achieved length and the planned length

    Time frame: 1 year post-operative

  5. Effectiveness -Time to Transport and Lengthening

    Time to achieve transport and lengthening

    Time frame: 1 year post-operative

  6. Effectiveness - Range of Motion

    Loss of Range of Motion at full consolidation; degrees from baseline

    Time frame: 1 year and 2 years post-operative

  7. Safety -Nail Extraction

    Nail extraction complications/failures

    Time frame: 1 year post-operative

  8. Effectiveness - Patient Reported Outcome Measures (PROMs)

    Improvement in PROMS scores (Pain, Quality of Life) obtained per standard of care

    Time frame: 1 year and 2 years post-operative

  9. Effectiveness - Mobility Measures

    Improvement in gait analysis

    Time frame: approximately 2 years post-operative

  10. Safety - Adverse Events

    Evaluation and classification of all adverse events including device-related, procedure-related and serious adverse events.

    Time frame: Index surgery through study completion; approximately 2 years post-operative

Other outcomes

  1. Primary Safety Endpoint

    The percentage of cases in which unplanned reoperations and/or revision surgery occurred.

    Time frame: 1 year and 2 years post-operative

07

Study locations

9 sites
  • Cedars Sanai Medical Center
    Los Angeles, California 90048, United States
  • University California - Irvine
    Orange, California 92868, United States
  • Emory University School of Medicine / Grady Memorial Hospital
    Atlanta, Georgia 30303, United States
  • Indiana University School of Medicine
    Indianapolis, Indiana 46202, United States
  • Sinai Hospital of Baltimore
    Baltimore, Maryland 21215, United States
  • Gillette Children's Specialty Healthcare
    Saint Paul, Minnesota 55101, United States
  • The Research Foundation for SUNY
    Buffalo, New York 14203, United States
  • Nationwide Children's Hospital
    Columbus, Ohio 43215, United States
  • University of Virginia Health
    Charlottesville, Virginia 22903, United States
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Nov 2024 to primary completion in Feb 2026, 15 months.

How these figures are worked out, and which studies are left out of them.

Registered
Apr 29, 2024
First posted
May 6, 2024
StartActual
Nov 19, 2024
Primary completionActual
Feb 28, 2026
CompletionActual
Feb 28, 2026
Last update
Apr 2, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Apr 2, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06400732
Lead sponsor
Orthofix Inc.
Responsible party
Sponsor
First posted
May 6, 2024
Start date
Nov 19, 2024
Primary completion
Feb 28, 2026
Completion
Feb 28, 2026
Last update
Apr 2, 2026

Study contacts

Jay Erturan, MD, JD
study director · Orthofix Inc.

Oversight

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

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This study is terminated, as verified in Mar 2026. You cannot join it, but the record below documents what was studied.

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