Comparison of forces generated using compression plating versus a magnetic lengthening nail in a sawbones femur model

Mierke, Alex; Shields, Troy G.; Williams, Nadine L.; Zuckerman, Lee M.

doi:10.1016/j.clinbiomech.2021.105508

Cited by 9 publications

(3 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…simplicity, as was the case for most previous experimental studies of dynamic compression plates. [3][4][5][6]11,34 These simplified generic models are suitable for investigation and demonstration of fundamental principles. 35 We caution against direct extrapolation of results here to specific clinical settings.…”

Section: Discussionmentioning

confidence: 99%

“…The wall thickness and modulus are representative of healthy nonosteoporotic bone. Transverse planar fractures were modeled for simplicity, as was the case for most previous experimental studies of dynamic compression plates 3–6,11,34 . These simplified generic models are suitable for investigation and demonstration of fundamental principles 35 .…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Finite element modeling of fracture compression by compression plates

Wee,

Spence Reid,

Lewis

2023

Journal Orthopaedic Research

View full text Add to dashboard Cite

Dynamic compression plating is a common type of fracture fixation used to compress between bone fragments. The quality of compression across the fracture is important for postoperative stability and primary bone healing. Compression quality may be affected by surgical variations in plate prebend, screw location, screw torque, fracture gap, and implant material. Computational modeling provides a tool for systematically examining these factors, and for visualizing the mechanisms involved. The purpose of this study was to develop a finite element model of dynamic compression plating that includes screw insertion under torque control, establish model credibility through sensitivity analyses and experimental validation, and use the model to examine the effects of surgical variables on fracture compression and postoperative stability. Model‐predicted compressive pressures had good agreement with corresponding synthetic bones experiments under a variety of conditions. Models demonstrated that introducing a 1.5 or 3 mm plate prebend (using a 4.5 mm narrow LCP plate) eliminated gapping at the far cortex, which is consistent with clinical recommendations. However, models also revealed that plate prebend led to sharp decreases in fracture compressive force, exceeding 80% in some cases. A 1.5 mm plate prebend resulted in the most uniform pressures across the fracture. Testing of a simplified model form used in previous computational modeling studies showed large inaccuracies for constructs with plate prebend. This study provides the first experimentally validated computational models of dynamic compression plate fracture fixation, and reveals important effects of plate prebend and fracture gap on fracture compression quality.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Finite element modeling of fracture compression by compression plates

Wee,

Spence Reid,

Lewis

2023

Journal Orthopaedic Research

View full text Add to dashboard Cite

show abstract

“…Artificial bones (Sawbones, Vashon Islands, WA) employed in biomechanical studies , were used to observe the effect of the shape memory implant on cortical and trabecular bones. A model with a density of 15 pcf (Cellular Foam, Block, #1522-1300) was used as the trabecular bone, and a model produced from short fiber-reinforced epoxy (Solid, Fourth Generation, #3403-11) was used for the cortical bone.…”

Section: Methodsmentioning

confidence: 99%

Determination of the Effect of TiN Coating on Self-Fitting Properties of Dental Implants Made of NiTi Alloy

Korkmaz

Sağlam

2022

ACS Biomater. Sci. Eng.

View full text Add to dashboard Cite

Design and material research continues to increase dental implants’ success rates, which is a widely applied treatment type. The size and morphology of the implant–bone interface are essential for implant stability. Our study produced a dental implant with two artificial tooth roots from NiTi alloy to increase the implant–bone contact surface. The properties of NiTi alloy, such as transformation temperature and composition, were determined by material characterization tests. Using NiTi alloy’s shape memory effect, these artificial roots at body temperature were programmed with appropriate heat treatments for the self-fitting feature. Dental-implant-like models are coated with TiN to prevent Ni ion release. The corrosion tests were performed in Ringer’s solution to determine the effect of TiN coating on Ni ion release. The nickel ion emission values showed that the TiN coating inhibited the release. In addition, it was determined that the TiN coating increased the shape memory transformation time of the NiTi alloy. In in vitro tests of NiTi and TiN-coated NiTi implants, it was observed that they completed self-fitting by deforming the trabecular bone, but the placement in the cortical bone was not complete. During the use of a shape memory implant, it should complete its transformation without contacting the cortical bone and should not cause a stress concentration.

show abstract

Reconstruction of the Femur with Allograft After Sarcoma Resection and Subsequent Limb-Lengthening

Zuckerman

2024

Limb Lengthening and Reconstruction Surgery Case Atlas

View full text Add to dashboard Cite

Comparison of forces generated using compression plating versus a magnetic lengthening nail in a sawbones femur model

Cited by 9 publications

References 30 publications

Finite element modeling of fracture compression by compression plates

Finite element modeling of fracture compression by compression plates

Determination of the Effect of TiN Coating on Self-Fitting Properties of Dental Implants Made of NiTi Alloy

Reconstruction of the Femur with Allograft After Sarcoma Resection and Subsequent Limb-Lengthening

Contact Info

Product

Resources

About