Problems with the Mennen plate when used for femoral fractures associated with implants

Petersen, Vivian Stausholm

doi:10.1007/s002640050234

Cited by 14 publications

(2 citation statements)

References 4 publications

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“…The ''Mennen plate'' has been used for the treatment of periprosthetic femoral fractures. Although the plate offered some benefits for this indication, several surgeons have described pitfalls such as non-unions and implant failure using this implant type [47][48][49][50][51][52].…”

Section: Plate Osteosynthesis Utilizing Anchoring Armsmentioning

confidence: 99%

Fixation principles in metaphyseal bone—a patent based review

et al. 2004

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Osteoporotic changes start in cancellous bone due to the underlying pathophysiology. Consequently, the metaphyses are at a higher risk of "osteoporotic" fracture than the diaphysis. Furthermore, implant purchase to fix these fractures is also affected by the poor bone quality. In general, researchers and developers have worked on three different approaches to address the problem of fractures to osteoporotic bone: adapted anchoring techniques, improved load distribution as well as transfer with angular stable screws, and augmentation techniques using bone substitutes. A patent-based review was performed to evaluate which ideas were utilized to improve fixation in osteoporotic, metaphyseal bone, especially in the proximal femur, and to analyze whether the concept had entered clinical use. Anchoring devices that are either extramedullary or intramedullary have a long clinical history. However, demanding surgical techniques and complications, especially in poor quality bone, are justification that such implants and their corresponding surgical techniques need to be improved upon. Expanding elements have been evaluated in the laboratory. The results are promising and the potential of this approach has yet to be fully exploited in the clinics. Internal fixators with angular stable screws open the door for many new anchorage ideas and have great potential for further optimization of load distribution and transfer. Augmentation techniques may improve anchorage in osteoporotic bone. However, the properties of bone substitute materials will need to be modified and improved upon in order to meet the demanding requirements. If we summarise the development process and the clinical use of implants to date, we have to clearly state that more factors than simply biomechanical advantage will determine the clinical success of a new fixation principle or a new implant. Instead, fracture treatment of patients with osteoporosis really needs an interdisciplinary approach!

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Section: Plate Osteosynthesis Utilizing Anchoring Armsmentioning

confidence: 99%

Fixation principles in metaphyseal bone—a patent based review

et al. 2004

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“…However a review of cases revealed that the case types that were successful represented only a small subgroup (22). Difficulty with application of the plate, the exposure required, healing complications and implant failure were problems that were encountered with the MCOP (22,23). A different type of clamp-on plate has been successfully used by Coetzee to repair canine tibial osteotomies (24), and diaphyseal fractures of the humerus, tibia, and femur in 21 dogs (25).…”

Section: Introductionmentioning

confidence: 99%