pmcf study on the safety, performance and clinical benefits data of the zimmer® plates and screws system

Conditions: Proximal Humeral Fracture; Proximal Tibia Fractures; Diaphyseal Fracture

Summary: the study is a monocentric, retro- and prospective, non-randomized, non-controlled and consecutive series post-market study. the purpose of this study is to confirm safety, performance and clinical benefits of the zimmer® plates and screws system (implants and instrumentation) when used to stabilize diaphyseal, proximal humerus and proximal tibia fractures. the primary objective is the assessment of performance by analyzing fracture healing. the secondary objectives are the assessment of safety 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. subjects' outcomes will also be assessed.

the zimmer® plates and screws system consists of temporary internal fixation devices comprised of plates and screws that provide management of fractures through interfragmentary compression and bone plating. in this study, the focus is on the zimmer® plates and screws system used to stabilize diaphyseal, proximal humerus and proximal tibia fractures. one site will be involved in this study. the aim is to include a maximum of 112 consecutive series cases who received the zimmer® plates and screws system at the istituto ortopedico rizzoli (bologna, italy) between 2008 and 2018. all potential study subjects will be required to participate in the informed consent process. baseline data from the preoperative, intraoperative, immediate post-operative and last consultation visit at minimum 6 months post-operative will be available in medical notes and collected retrospectively. during a follow up phone call the subject will be asked to complete questionnaires and a clinical assessment of the fracture healing. in addition, any complications since the last consultation visit at the clinic and information about the treatment of the complications will also be collected over the phone.

Eligibility criteria:
inclusion criteria: patients having received one of the plates belonging to the zimmer® plates and screws system, designed for temporary internal fixation to stabilize fractures during the normal healing process. in this study we will collect data specifically on zimmer® plates and screws system plates belonging to the diaphysis, proximal humerus and proximal tibia groups. exclusion criteria: * off-label use * patients under the age of 18 * prisoners * severely comminuted fractures in which bone fragments are too small or numerous to adequately fix or maintain a reduced position * infection * metal sensitivity or intolerance * severe osteopenia and/or osteoporosis, or in the presence of marked or rapid bone absorption, metabolic bone disease, cancer, or any other tumor-like condition of the bone which may compromise fixation * sternal or spinal fractures * anatomical location in which the device would interfere with nerves, blood vessels, or other vital structures * patients with inadequate soft tissue coverage at the implant site

Keywords: medical device performance safety clinical benefits diaphysis proximal humerus proximal tibia fracture post market clinical follow up study