CClinicalTrials.gg
CompletedNCT04015167Updated Jan 6, 2025Results posted

A Post-Market Clinical Evaluation of the Treatment of Tibia Fractures With the T2 Alpha Tibia Nailing System

An observational study in Tibial Fractures, sponsored by Stryker Trauma and Extremities. Completed at 4 sites in United States. Open to participants aged 18 Years to 99 Years. Per ClinicalTrials.gov, last updated 2025-01-06.

Sponsored by Stryker Trauma and Extremities · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
103
Ages
18 Years to 99 Years
Sex
All
01

Study summary

This investigation is a prospective, multi-center clinical investigation. It is anticipated that a total of 80 subjects will be enrolled. Neither subjects nor investigators are blinded to treatment and the clinical investigation includes a historical control which will be compared to the T2 Alpha Tibia Nailing System.

Total duration of enrollment, 12 month follow-up and analysis is expected to take 31 months. The clinical investigation has been designed to follow the surgeon's standard of care for tibia fractured subjects, in addition to a 12 month follow-up visit.

The primary endpoint of this clinical investigation is to confirm efficacy/performance at 12 months, as measured by the SF-36 Physical Component Summary (PCS). Confirmation of efficacy/performance at 12 months will be based on an equal or higher (non-inferior) SF-36 Physical Component Summary (PCS) result of the T2 Alpha Tibia Nailing System compared to the benchmark literature.

Read the detailed description

The objective of this clinical investigation is to demonstrate the safety and efficacy/performance of the T2 Alpha Tibia Nailing System. Efficacy/performance of the procedure will be measured by an equal or higher (non-inferior) SF-36 Physical Component Summary (PCS) score result of the T2 Alpha Tibia Nailing System compared to the T2 Tibia benchmark literature at 12 months.

In addition, demonstration of bone consolidation in correct alignment will be measured by Investigator assessment by 12 months. Safety of the T2 Alpha Tibia Nailing System will be demonstrated through reporting of device related intra-operative and post-operative Adverse Events/incidents by 12 months.

02

Conditions studied

  • Tibial Fractures
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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 103 is close to the median of 100 across 675 observational studies indexed under Fractures, Bone.

Browse Fractures, Bone studies →

Lead sponsor

Stryker Trauma and Extremities is the lead sponsor of 43 studies on the registry; 5 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 99 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Probability sample

Study population

Approximately 80 subjects are to be enrolled in this clinical investigation. Subjects participating in this clinical investigation will be recruited from the investigator's standard subject population, where all subjects presenting for treatment of tibial fractures will be evaluated for clinical investigation participation based on the eligibility criteria.

Inclusion criteria

  • Subject is a male or non-pregnant female age 18 years or older at the time of surgery;
  • Subject is willing and able to give written informed consent and comply with the requirements of this Clinical Investigation Plan;
  • Subject is intended to be, treated with the Tibial Nail of the T2 Alpha Tibia Nailing System in accordance with the following legally cleared/ approved Indications for Use:

Indications for Use approved In United States and Canada include:

  • Open and closed tibial fractures
  • Pseudoarthrosis and correction osteotomy
  • Pathologic fractures, impending pathologic fractures and tumor resections
  • Fractures involving osteopenic and osteoporotic bone
  • Nonunions and malunions

Exclusion criteria

Exclusion Criteria:

  • Subject is currently enrolled in or plans to enroll in any concurrent drug and/or device clinical investigation that, in the opinion of the Investigator, may confound results;
  • Per the Investigator, the subject is in poor general health or undergoing any concurrent disease that would place the subject in excessive risk to surgery (i.e. significant circulatory problems, cardiac disease).
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
103 participants (actual)
Patient registry
No

Groups and cohorts

  • T2 Alpha Tibia

    Subjects in the clinical investigation will undergo placement of the Tibial Nail of the T2 Alpha Tibia Nailing System, according to the approved Instructions for Use and Operative Technique Manual.

    Device: T2 Alpha Tibia Nailing System

Interventions

  • DeviceT2 Alpha Tibia Nailing System

    The T2 Alpha Tibia Nailing System is intended for temporary stabilization of bone segments or fragments until bone consolidation has been achieved.

06

What researchers measure

Primary outcomes

  1. SF-36 PCS (36-Item Short Form Health Survey Physical Component Summary)

    The primary endpoint of this clinical investigation is to confirm efficacy/performance at 12 months, as measured by the SF-36 PCS (36-Item Short Form Health Survey Physical Component Summary). The SF-36 PCS is a self-report measure of health status. SF-36 Physical Component Summary scores range from 0 to 100; higher SF-36 score results are linked to better subject results. Confirmation of efficacy/performance at 12 months will be based on an equal or higher (non-inferior) SF-36 Physical Component Summary (PCS) result of the T2 Alpha Tibia Nailing System compared to the T2 Tibia benchmark literature.

    Time frame: 12 months

Secondary outcomes

  1. Safety Will be Measured by Capturing the Incidence Rate of Device-related Adverse Events

    Incidence of device-related adverse events will be monitored by 12 months through data collection and analyses.

    Time frame: 12 months

  2. Efficacy/Performance Will be Measured by Demonstration of Bone Consolidation

    Bone consolidation will be assessed by 12 months as measured by Investigator assessment.

    Time frame: 12 months

07

Results

Posted Jan 6, 2025
Limitations and caveats
Assessment of long-term impacts were challenging due to a higher number of loss-to-follow-up, which resulted in missing data and reduced statistical power.

Participant flow

Participant flow — Overall Study
MilestoneT2 Alpha Tibia
Started103
Completed55
Not completed48
Withdrew: Lost to follow-up40
Withdrew: Adverse event5
Withdrew: Withdrawal by subject2
Withdrew: Subject went to jail1

Outcome measures

PrimarySF-36 PCS (36-Item Short Form Health Survey Physical Component Summary)

The primary endpoint of this clinical investigation is to confirm efficacy/performance at 12 months, as measured by the SF-36 PCS (36-Item Short Form Health Survey Physical Component Summary). The SF-36 PCS is a self-report measure of health status. SF-36 Physical Component Summary scores range from 0 to 100; higher SF-36 score results are linked to better subject results. Confirmation of efficacy/performance at 12 months will be based on an equal or higher (non-inferior) SF-36 Physical Component Summary (PCS) result of the T2 Alpha Tibia Nailing System compared to the T2 Tibia benchmark literature.

Time frame:
12 months
Reported as:
Mean · score on a scale
SF-36 PCS (36-Item Short Form Health Survey Physical Component Summary)
score on a scaleT2 Alpha Tibia
SF-36 PCS (36-Item Short Form Health Survey Physical Component Summary)49.21 ± 9.65
SecondarySafety Will be Measured by Capturing the Incidence Rate of Device-related Adverse Events

Incidence of device-related adverse events will be monitored by 12 months through data collection and analyses.

Time frame:
12 months
Reported as:
Count of participants · Participants
Safety Will be Measured by Capturing the Incidence Rate of Device-related Adverse Events
ParticipantsT2 Alpha Tibia
*Delayed union (no bone consolidation within 4 months)2
Implant loosening (screw)1
Infection (deep)2
Non-union (no bone consolidation within 6 months)2
Pain4
SecondaryEfficacy/Performance Will be Measured by Demonstration of Bone Consolidation

Bone consolidation will be assessed by 12 months as measured by Investigator assessment.

Time frame:
12 months
Reported as:
Count of participants · Participants
Efficacy/Performance Will be Measured by Demonstration of Bone Consolidation
ParticipantsT2 Alpha Tibia
Bone Consolidation - Yes48
Bone Consolidation - No6

Adverse events

Collected over 1 year. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
T2 Alpha Tibia0/103 (0%)0/103 (0%)11/103 (10.7%)
Most frequent other events
Most frequent other events
EventT2 Alpha Tibia
PainProduct Issues4/103
Delayed union (no bone consolidation within 4 months)Musculoskeletal and connective tissue disorders2/103
Infection (deep)Infections and infestations2/103
Non-union (no bone consolidation within 6 months)Musculoskeletal and connective tissue disorders2/103
Implant loosening (screw)Product Issues1/103

Baseline characteristics

Age, Continuous
Age, Continuous(years)T2 Alpha Tibia
Mean43.81 ± 18.53
Sex: Female, Male
Sex: Female, Male(Participants)T2 Alpha Tibia
Female41
Male62
Race/Ethnicity, Customized
Race/Ethnicity, Customized(Participants)T2 Alpha Tibia
Ethnicity — Asian5
Ethnicity — Black or African26
Ethnicity — Caucasian72
Region of Enrollment
Region of Enrollment(participants)T2 Alpha Tibia
United States103
08

Study locations

4 sites
  • St. Cloud Orthopedic Associates, Ltd
    Sartell, Minnesota 56377, United States
  • New York University
    New York, New York 10016, United States
  • UC Health
    Cincinnati, Ohio 45229, United States
  • Inova Fairfax Medical Campus
    Falls Church, Virginia 22042, United States
09

References and documents

Study documents

  • Study protocol · Nov 23, 2020
  • Statistical analysis plan · Jul 23, 2021

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 6, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT04015167
Lead sponsor
Stryker Trauma and Extremities
Responsible party
Sponsor
First posted
Jul 10, 2019
Start date
Sep 12, 2019
Primary completion
Nov 10, 2022
Completion
Aug 8, 2023
Results posted
Jan 6, 2025
Last update
Jan 6, 2025

Study contacts

Rebecca Gibson
study director · Stryker Trauma and Extremities

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 completed, as verified in Nov 2024. You cannot join it, but the record below documents what was studied.

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