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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT05276674
Other study ID # CME2021-40T
Secondary ID
Status Recruiting
Phase
First received
Last updated
Start date October 23, 2023
Est. completion date November 2026

Study information

Verified date May 2024
Source Zimmer Biomet
Contact Gemma de Ramon Francàs
Phone +41 79 377 11 96
Email gemma.deramonfrancas@zimmerbiomet.com
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial 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.


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.


Recruitment information / eligibility

Status Recruiting
Enrollment 100
Est. completion date November 2026
Est. primary completion date November 2026
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility 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

Study Design


Related Conditions & MeSH terms


Intervention

Device:
ZNN Bactiguard Retrograde Femoral Nail
Femoral fracture internal fixation.

Locations

Country Name City State
United Kingdom Leeds General Infirmary Leeds

Sponsors (1)

Lead Sponsor Collaborator
Zimmer Biomet

Country where clinical trial is conducted

United Kingdom, 

Outcome

Type Measure Description Time frame Safety issue
Primary Rate of fracture healing 12 months after fracture fixation Fracture 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.
3, 6, and 12 months after fracture fixation
Secondary Oxford Knee Score (limb function) Range: 0 - 48, higher scores indicate better function. Patient-reported outcome to evaluate the function of the limb treated with ZNN Bactiguard Femur Retrograde. 3, 6, and 12 months after fracture fixation
Secondary EQ-5D-5L score (patient's quality of life) Range: 0 - 100, higher scores indicate better quality of life. Patient-reported outcome to evaluate quality of life. pre-surgery (retrospectively), 3, 6, and 12 months after fracture fixation
Secondary Adverse events frequency The incidence and frequency of adverse events occurring during the study will be reported. 12 months after fracture fixation
Secondary Rate of fracture-related infections Fracture-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. 12 months after fracture fixation
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