Zimmer® Natural Nail® (ZNN) Bactiguard Tibia Post-Market Clinical Follow-up Study
Performance, Safety and Clinical Benefits of a Noble Metal Alloy-coated Intramedullary Nail: a Multicenter, Prospective Trial With a Retrospective Control
Performance, Safety and Clinical Benefits of a Noble Metal Alloy-coated Intramedullary Nail: a Multicenter, Prospective Trial With a Retrospective Control
Sponsor study identifier
observational
500
8 countries
16
Study Start
April 11, 2022
Actual (reported)Primary Completion
July 2026
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Study Completion
July 2027
EstimatedPlanned date reported by the registry; this milestone is not confirmed as achieved.
Primary objective of this study is to compare fracture related infection (FRI) rates of ZNN Bactiguard Tibia to conventional uncoated titanium-alloy nails 12 months after tibia fracture fixation. The secondary objectives are confirmation of safety, performance and clinical benefits of ZNN Bactiguard implant and related instrumentation12 months after fracture fixation.
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
July 2027
EstimatedPlanned date reported by the registry; this milestone is not confirmed as achieved.
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Some registry-reported names shown below are not yet linked in this graph.
Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
July 16, 2021
Actual (reported)August 26, 2021
Actual (reported)April 11, 2022
Actual (reported)July 2026
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
July 2027
EstimatedPlanned date reported by the registry; this milestone is not confirmed as achieved.
Fracture related infection (FRI) rate in investigational and control group
FRI diagnosed according to the updated diagnostic algorithm drafted by the Fracture-Related Infection Consensus Group (Definition and diagnosis of fracture-related infection, M McNally,G Govaert, M Dudareva, M Morgenstern, W J Metsemakers, EFORT Open Rev 2020;5:614-619.)
12 months after fracture fixation
Tibia fracture healing assessed radiologically through Radiographic Union Scale in Tibial fractures (RUST) score
12 months after fracture fixation
Tibia fracture healing assessed clinically through the Function IndeX for Trauma (FIX-IT) score
12 months after fracture fixation
Limb functionality measured through the Oxford Knee Score
12 months after fracture fixation
Quality of life of study participants assessed through the EQ-5D-5L questionnaire
12 months after fracture fixation
Incidence and frequency of adverse events
12 months after fracture fixation
Subjects that will be implanted with the ZNN Bactiguard tibia device.
Subjects that have received an uncoated titanium-alloy tibia nail in the past (data collection is retrospective; patients will not have to undergo any study-related procedure).
Tibia fracture fixation
Registry-reported names are shown in full. Names without a link have not yet been matched to a Syfrah profile.
18-year-old patients or older with tibia fractures at high risk for infection (as defined in the inclusion criteria) treated with a titanium-alloy intramedullary nail.
Tirolkliniken Innsbruck
Innsbruck, 6020, Austria
Hôpital Ambroise-Paré
Boulogne-Billancourt, 92100, France
Emilie Rohmer
Clin Ops Director
First Submitted
July 16, 2021
First Posted
August 26, 2021
Study Start
April 11, 2022
Actual (reported)Primary Completion
July 2026
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Transitional Ankle Fracture Management Using a New Joystick Technique
Contact the study team to confirm eligibility.
Hôpitaux Universitaires de Marseille Nord
Marseille, 13915, France
Universitätsklinikum Marburg
Marburg, Hesse, 35039, Germany
Universitätsklinikum Leipzig
Leipzig, 04103, Germany
Universitätsklinikum Regensburg
Regensburg, 93053, Germany
AOU Policlinico di Bari
Bari, 70124, Italy
Azienda Ospedaliero-Universitaria Careggi
Florence, 50134, Italy
Tygerberg Hospital
Cape Town, 7505, South Africa
Groote Schuur Hospital
Cape Town, 7935, South Africa
Hospital Universitario Valle de Hebrón
Barcelona, Catalonia, 08035, Spain
Kantonsspital Winterthur
Winterthur, Canton of Zurich, 8400, Switzerland
Royal Infirmary of Edinburgh
Edinburgh, EH16 4SA, United Kingdom
Leeds General Infirmary
Leeds, LS1 3EX, United Kingdom
The Royal London Hospital
London, E1 1FR, United Kingdom
King's College Hospital NHS Trust
London, SE5 9RS, United Kingdom
Study Completion
July 2027
EstimatedPlanned date reported by the registry; this milestone is not confirmed as achieved.
Last Updated
November 25, 2025
Record last verified: 2025-11
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Source: ClinicalTrials.gov.
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