Biomechanical Analysis of Three Different Types of Implants in Humeral Diaphysis Fractures

Asaftei, R.; Sîrbu, Paul Dan; Carata, E.; Bar, M.; Botez, Paul

doi:10.1109/atequal.2010.35

Cited by 3 publications

(6 citation statements)

References 6 publications

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“…The aim of a biomechanical study from 2010 was to evaluate the mechanical behavior of four different types of implants used for internal fixation of comminuted humeral shaft fractures [11].…”

Section: Biomechanical Analysis Of Four Different Types Of Implants Imentioning

confidence: 99%

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Clinical and Experimental Biomechanical Studies Regarding Innovative Implants in Traumatology

Sîrbu¹,

Friedl²,

Mihăilescu³

et al. 2020

Recent Advances in Biomechanics

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Fracture treatment has experienced a fascinating evolution in the last years. The aim of this chapter is to reveal some clinical and biomechanical studies regarding innovative implants. After a short introduction (1), we intend to present our results regarding (2) dynamic condylar screw versus condylar blade plate in complex supracondylar femoral fractures; (3) biomechanical analysis of four types of implants in humeral fractures; (4) clinical and experimental studies for optimal stabilization of trochanteric fractures: the gliding nail; (5) intramedullary XS nail for pilon and ankle fractures: design, biomechanics, and clinical results; (6) the XS nail for the treatment of patella and olecranon fractures; and (7) plates with polyaxial stability for fractures of distal radius and proximal humerus. In conclusion, the authors highlight the advantages of these innovative implants in difficult trauma cases. Biomechanics 2 DCS versus CBP in complex supracondylar femoral fractures: a biomechanical studyDistal femoral fractures represent a challenge for orthopedic surgeons, and despite numerous biomechanical studies, the optimal implant is still controversial [1][2][3][4]. However, while plates with angular stability and retrograde interlocking nails are nowadays the best choice for treatment, CBP and DCS were the most used implants until the development of these innovative implants [5].In a biomechanical study from 2009, the authors compared the mechanical rigidity of the bone/implant (DCS or CBP) construct in complex supracondylar femoral fractures [5,6].Twelve synthetic composite femoral bones were fixed in the distal part with six DCS and six CBP, and then, the authors performed by osteotomy a bone defect of 1.5 cm to simulate a complex supracondylar fracture type A3/AO (Figure 1).The femurs were sectioned in the midshaft, and the proximal part of the distal fragments was fixed in a metallic adapter sleeve. The bone-implant constructs were tested for seven types of loading: (1) internal compression; (2) external compression; (3) anterior compression; (4) posterior compression; (5) axial compression; (6) external torsion; and (7) internal torsion.The compression tests were realized up to 350 N, and the applied torsion attended 25 Nm. The tests were repeated six times in order to establish the statistic dispersion. All the measurements for DCS were realized with or without compaction screw.The compression force and loading force were measured by a M221B04 (PCB Piezotronics force transducer), while linear deformation values for the compression were measured using two inductive transducers applied in frontal axis (TD1) and sagittal axis (TD2) (Figure 2). Data acquisition was realized by a six-channel admittance bridge, an interface board, and a digital data acquisition system DAQ1200 connected to a laptop.According to study measurements, by reporting the loading/unloading force to the transducer (TD1 and TD2) displacement, we represented hysteresis cycles as diagrams for the femur/DCS (with and without compaction screw)...

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Section: Biomechanical Analysis Of Four Different Types Of Implants Imentioning

confidence: 99%

“…For the testing trials, we used the Nexygen and Ondio producer provided software. All of the constructs were submitted to torsion essays in external and internal rotation as to obtain the same amount of torque [11].…”

Section: Biomechanical Analysis Of Four Different Types Of Implants Imentioning

confidence: 99%

Clinical and Experimental Biomechanical Studies Regarding Innovative Implants in Traumatology

Sîrbu¹,

Friedl²,

Mihăilescu³

et al. 2020

Recent Advances in Biomechanics

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“…In a recent study on plastic bones (Asaftei et al, 2010) we have evaluated the mechanical behavior of three different types of implants used in the osteosynthesis of comminuted humeral shaft fractures. We instrumented the fractures with 3 types of implants: an intramedullary nail, two types of locked plates and a "classic" DCP.…”

Section: Mipo Techniques In Complex Humeral Shaft Fracturesmentioning

confidence: 99%

Biomechanics in Applications

Klika¹

2011

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“…The authors present in a recent study (Sirbu et al, 2010) their personal experience regarding angular stability plate osteosynthesis for the fractures of the proximal humerus, distal radius, distal femur, proximal tibia. Results for the treatment with internal fixator plates are much better than the results for classic implants osteosynthesis (mainly in fractures on osteoporotic bones), accounting for construct stability, lack of secondary displacements, early rehabilitation.…”

mentioning

confidence: 99%

“…Poliaxially locked plates allow the adjustment of screw trajectory, their placement being adapted to the fracture type (Richter at al, 2006;Sirbu et al, 2009bSirbu et al, , 2010. The screw position can be changed with 15° in any direction inside a solid cone (with a 30° allowance) (Fig.…”

mentioning

confidence: 99%

Minimally Invasive Plate Osteosynthesis (MIPO) in Long Bone Fractures – Biomechanics – Design – Clinical Results

Sîrbu¹,

Petreuş²,

Asaftei³

et al. 2011

Biomechanics in Applications

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Biomechanical Analysis of Three Different Types of Implants in Humeral Diaphysis Fractures

Cited by 3 publications

References 6 publications

Clinical and Experimental Biomechanical Studies Regarding Innovative Implants in Traumatology

Clinical and Experimental Biomechanical Studies Regarding Innovative Implants in Traumatology

Biomechanics in Applications

Minimally Invasive Plate Osteosynthesis (MIPO) in Long Bone Fractures – Biomechanics – Design – Clinical Results

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