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ZNN Bactiguard Retrograde Femoral Nails PMCF Study

Post-Market Clinical Follow-up Study on the ZNN™ Bactiguard ® Retrograde Femoral Nails (Implants and Instrumentation)

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT05276674
Enrollment
100
Registered
2022-03-11
Start date
2023-10-23
Completion date
2027-12-01
Last updated
2026-02-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Femoral Fracture

Keywords

Bactiguard, Femur fracture, Intramedullary nailing, Infection control

Brief summary

Post-market clinical follow-up (PMCF) study to confirm the safety, performance, and clinical benefits of the intra-medullary retrograde femoral nail Zimmer Natural Nail (ZNN) Bactiguard (implants and instrumentation) when used for the temporary internal fixation and stabilization of femoral fractures.

Detailed description

The objective of this prospective PMCF study is to collect data to confirm safety, performance and clinical benefits of the Zimmer Natural Nail (ZNN) Bactiguard Retrograde Femoral Nail (implants and instrumentation) when used for the temporary internal fixation and stabilization of femoral fractures. The primary endpoint is the assessment of performance by analyzing fracture healing. The secondary endpoints are the assessment of safety, clinical benefit and post-op fracture related infection (FRI). Safety will be evaluated by recording and analyzing the incidence and frequency of complications and adverse events. Relation of the events to implant, instrumentation and/or procedure should be specified. Clinical benefit will be assessed by recording patient-reported outcome measures (PROMs). FRIs will be classified according to the updated diagnostic algorithm defined by the FRI Consensus Group.

Interventions

DEVICEZNN Bactiguard Retrograde Femoral Nail

Femoral fracture internal fixation.

Sponsors

Zimmer Biomet
Lead SponsorINDUSTRY

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients must be 18 years or older. * Patient must have a femoral fracture (open, closed, monolateral or bilateral) requiring surgical intervention and be eligible for fixation by intramedullary nailing. Patients with delayed treatment (initial treatment by external fixation due to swelling / high energy trauma followed by definitive treatment by intramedullary nail) can also be included. * Patient has been or is scheduled to be treated with the ZNN Bactiguard System Retrograde Femoral Nail. * Patient must be able and willing to complete the protocol required follow-up. * Patient must have a signed EC approved consent. * Patients capable of understanding the surgeon's explanations and following his instructions.

Exclusion criteria

* Skeletally immature patients * A medullary canal obliterated by a previous fracture or tumor * Bone shaft having excessive bow or a deformity * Lack of bone substance or bone quality, which makes stable seating of the implant impossible * All concomitant diseases that can impair the operation, functioning or the success of the implant * Insufficient blood circulation * Infection * Patient is unwilling or unable to give consent. * Patient is a vulnerable subject (prisoner, mentally incompetent or unable to understand what participation to the study entails, alcohol/drug addiction, known to be pregnant or breast feeding). * Patient anticipated to be non-compliant and/or likely to have problems with maintaining follow-up program (e.g. patient with no fixed address, long distance, plans to move during course of study). * Not expected to survive the duration of the follow-up program

Design outcomes

Primary

MeasureTime frameDescription
Rate of fracture healing 12 months after fracture fixation3, 6, and 12 months after fracture fixationFracture healing is assessed with x-ray imaging and clinical examination. Radiographic Union-Scale in Tibial fractures (RUST) score adapted for the femur, A/P and lateral views. Range: 4 - 12. Fracture healing is defined as RUST scores greater than or equal to 6. Fix-IT score (clinical examination). Range 0 - 12, higher scores indicate better limb function.

Secondary

MeasureTime frameDescription
Oxford Knee Score (limb function)3, 6, and 12 months after fracture fixationRange: 0 - 48, higher scores indicate better function. Patient-reported outcome to evaluate the function of the limb treated with ZNN Bactiguard Femur Retrograde.
EQ-5D-5L score (patient's quality of life)pre-surgery (retrospectively), 3, 6, and 12 months after fracture fixationRange: 0 - 100, higher scores indicate better quality of life. Patient-reported outcome to evaluate quality of life.
Adverse events frequency12 months after fracture fixationThe incidence and frequency of adverse events occurring during the study will be reported.
Rate of fracture-related infections12 months after fracture fixationFracture-related infections are diagnosed in accordance with the algorithm described in M McNally,G Govaert, M Dudareva, M Morgenstern, W J Metsemakers, EFORT Open Rev 2020;5:614-619.

Countries

Spain, United Kingdom

Contacts

CONTACTGemma de Ramon Francàs
gemma.deramonfrancas@zimmerbiomet.com+41 79 377 11 96
CONTACTEmilie Rohmer
emilie.rohmer@zimmerbiomet.com+41 79 368 91 28

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026