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Clinical Trial Summary

In order to assess the rate and mode of failure cases observed in patients with distal femur fractures treated with a distal femur plates, anonymized radiographs from those patients will be collected retrospectively. All available images will reviewed by an expert review board in regards to fracture classification, implant and surgery details, quality of initial reduction and plate positioning as well as the occurrence of mechanical complications and the outcome in terms of fracture healing (if available). Additionally, age and gender as basic demographical data will be collected in a de-identified way..


Clinical Trial Description

Severely comminuted distal femur fractures can be challenging injuries and usually require surgical treatment with lateral distal plate osteosynthesis. Anatomically pre-contoured locking plates are commonly used. In 2012, the 4.5mm VA-LCP Curved Condylar Plate for distal femur fractures (VA-LCP DF, Synthes) was introduced offering the option of axis variation of the locking screws. Recently, a report highlighted cases of implant failure with this implant, cautioning practicing surgeons against the use of this implant in certain type of AO/OTA fracture and dislocation classification 33 fractures (AO/OTA classification). Based on this report, the current study was designed to perform a retrospective in-depth radiological analysis of all cases distal femur fractures of 4 participating sites in which the VA-LCP DF, the LCP Distal Femur Plate (LCP DF, Synthes) or the 'less invasive stabilization system' for distal femur fractures (LISS DF, Synthes) were used for fracture stabilization. The radiological in-depth analysis will be done by an expert review board with the aim to identify potential causes and risk factors for the failure cases among all cases collected. This evaluation will contribute to a better understanding of the mechanical performance of distal femur fracture plates and the causes and risk factors for failures. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT04008940
Study type Observational
Source AO Innovation Translation Center
Contact
Status Active, not recruiting
Phase
Start date January 2012
Completion date June 2023

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