Performance, Safety and Clinical Benefits of a Noble Metal Alloy-coated Intramedullary Nail: a Multicenter, Prospective Trial With a Retrospective Control
试验速览
- 阶段
- 不适用
- 状态
- 招募中
- 入组人数
- 500
- 试验地点
- 16
- 主要终点
- Fracture related infection (FRI) rate in investigational and control group
研究概览
简要总结
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.
详细描述
This is a multicenter, prospective, Post-market Clinical Follow-up (PMCF) Study with retrospective controls.
The study will enroll patients that will be implanted with the Zimmer Natural Nail Bactiguard Tibia device and retrospective controls implanted with standard titanium-alloy tibia nails.
500 tibias will be recruited at maximum 15 sites and allocated on a 1:1 ratio into an:
- investigational group (prospective/consecutive series of 250 tibias treated with ZNN Bactiguard tibia)
- a control group (retrospective series of 250 tibias treated with uncoated titanium-alloy tibia nail - data collection will be retrospective, these subjects will not have to undergo any study-related procedure).
The primary endpoint is the Fracture Related Infection (FRI) rate in the study population 12 months after fracture fixation.
研究设计
- 研究类型
- Observational
- 观察模型
- Case Control
- 时间视角
- Prospective
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Patient must be 18 or older.
- •Patient has signed IRB/EC-approved informed consent (if applicable for retrospective controls, based on local requirements).
- •Patient suffered primary tibia fracture (monolateral or bilateral) at high risk of infection, eligible for fixation by intramedullary (IM) nailing (standard or suprapatellar approach) and meets at least one of the following conditions:
- •Open fractures (incl. gunshot fractures): Gustilo Type I, II, III A and III B.
- •Delayed treatment (initial treatment by external fixation due to swelling/ high energy trauma followed by definitive treatment by intramedullary nail).
- •Fracture associated with ipsilateral leg compartment syndrome treated with fasciotomy wound(s).
- •Closed fractures with severe tissue damage: Tscherne grade C2 and C
- •will be treated with ZNN Bactiguard tibia for inclusion in investigational group (retrospective enrollment is allowed up to 1st follow-up visit);
- •was treated with uncoated (conventional) titanium-alloy intramedullary tibia nail for inclusion in control group;
排除标准
- •Patient is unwilling or unable to give consent.
- •Patient is not expected to survive follow-up schedule.
- •Patient is anticipated to be non-compliant to the study protocol.
- •Patient has a mental or neurological condition or alcohol/drug addiction that will not allow for proper informed consent and/or participation in follow-up program.
- •Patient is a prisoner.
- •Patient is known to be pregnant and/or breastfeeding.
- •Patient suffered tibia fracture that meets any of the following conditions:
- •Pathologic fracture.
- •Gustilo Type IIIC open fracture.
- •Patient has multisegmented fracture NOT eligible for fixation by intramedullary nailing.
- •Patients with wound closure more than 10 days after injury.
- •Besides IM nail, patient requires additional tibia fixation by plate (additional tibia fixation by screw(s) and/or fibula plate fixation are allowed).
- •Concomitant with fracture, patient suffered head injury with Abbreviated Injury Score (AIS) ≥
- •For control group:
- •patient doesn't have all the minimum required data available:
- •demographic information
- •injury classification
- •FRI information
- •operative report and device information
- •radiographic analyses (until fracture healing or confirmation of non-union leading to reoperation)
- •Tibia medullary canal is obliterated by a previous fracture or tumor*
- •Tibia bone shaft having excessive bow or a deformity*
- •Lack of bone substance or bone quality, which makes stable seating of the nail implant impossible*
- •All concomitant diseases that can impair the operation, functioning or the success of the nail implant*
- •Insufficient blood circulation*
- •Skeletally immature patients*
- •Infection*
- •ZNN Bactiguard tibia contraindication
结局指标
主要结局
Fracture related infection (FRI) rate in investigational and control group
时间窗: 12 months after fracture fixation
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.)
次要结局
- 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)
- Quality of life of study participants assessed through the EQ-5D-5L questionnaire(12 months after fracture fixation)
- Limb functionality measured through the Oxford Knee Score(12 months after fracture fixation)
- Incidence and frequency of adverse events(12 months after fracture fixation)