Numerical analysis of the mechanical response of novel swelling bone implants in polyurethane foams

Sadighi, Amirreza; Taghvaei, Moein; Taheri, Mehrangiz; Oeth, Delaney; Siegler, Sorin; Schaer, Thomas P.; Najafi, Ahmad R.

doi:10.1016/j.jmbbm.2023.105871

Cited by 3 publications

(2 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although CM&S technology is actively applied in the development of medical devices in artificial knee joints and artificial hip joints, the application of CM&S technology in dental implants is relatively low. The finite element analysis of dental implants is mainly used to analyze biomechanical characteristics [8][9][10]. Finite element analysis can be used in dental implant development because it can construct modeling in the same way as standard testing.…”

Section: Introductionmentioning

confidence: 99%

Validation of the Finite Element Model versus Biomechanical Assessments of Dental Implants and Total Knee Replacements

Kang,

Park,

Ahn

et al. 2023

Bioengineering

View full text Add to dashboard Cite

Computer modeling and simulation (CM&S) technology is widely used in the medical device industry due to its advantages such as reducing testing time and costs. However, the developer’s parameter settings during the modeling and simulation process can have a significant impact on the results. This study developed a test model for the rotational shear strength of dental implants and the constraint force of total knee replacements based on CM&S technology and proposes ideal parameters to ensure reliability. For dental implants, the load area and sliding contact conditions were considered, and for total knee replacements, the friction coefficient, medial–lateral displacement, valgus–varus rotation, and elastic modulus were considered. By comparing the simulation results and mechanical tests, boundary conditions with an error rate of less than 1.5% were selected. When a jig (gripper and collector) was applied with the same boundary conditions, an error rate of 48~22% occurred; otherwise, it was confirmed that the error rate was within 10~0.2%. The FE model was verified with an error of 2.49 to 3% compared to the mechanical test. The friction coefficient variable had the greatest influence on the results, accounting for 10 to 13%, and it was confirmed that valgus–varus rotation had a greater influence on the results than medial–lateral displacement. Relatively, the elastic modulus of the insert had the least effect on the results. These research results are expected to make CM&S techniques useful as a medical device digital development tool (M3DT) in the development of total knee replacements and dental implants.

show abstract

Section: Introductionmentioning

confidence: 99%

Validation of the Finite Element Model versus Biomechanical Assessments of Dental Implants and Total Knee Replacements

Kang,

Park,

Ahn

et al. 2023

Bioengineering

View full text Add to dashboard Cite

show abstract

“…Results from a swelling and mechanical testing study conducted on solid, fully porous, and partially porous bone anchors indicated that as the percentage of porosity in the anchor increased the swelling ratio increased but the mechanical strength of the anchor decreased. 36,37 The goal of this study was to determine the fixation strength of solid, porous, and partially porous swelling bone anchors using artificial bone of variable density. We also characterized and compared the failure modes produced in the surrounding bone during pull-out testing between swelling anchors and a conventional cancellous bone screw.…”

mentioning

confidence: 99%

Fixation strength of swelling copolymeric anchors in artificial bone

Taghvaei,

Taheri,

Sadighi

et al. 2023

Journal Orthopaedic Research

Self Cite

View full text Add to dashboard Cite

Fixation with suture anchors and metallic hardware for osteosynthesis is common in orthopedic surgeries. Most metallic commercial bone anchors achieve their fixation to bone through shear of the bone located between the threads. They have several deficiencies, including stress‐shielding due to mechanical properties mismatch, generation of acidic by‐products, poor osteointegration, low mechanical strength and catastrophic failure often associated with large bone defects that may be difficult to repair. To overcome these deficiencies, a swelling porous copolymeric material, to be used as bone anchors with osteointegration potential, was introduced. The purpose of this study was to investigate the fixation strength of these porous, swelling copolymeric bone anchors in artificial bone of various densities. The pull‐out and subsidence studies indicate an effective fixation mechanism based on friction including re‐fixation capabilities, and minimization of damage following complete failure. The study suggests that this swelling porous structure may provide an effective alternative to conventional bone anchors, particularly in low‐density bone.

show abstract

A short review on the effect of mechanical vibration in the evaluation and replacement of bone cement-anchored implants in human bone

Kadoura,

Abdul Jalil,

Arumugam

et al. 2024

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

Mechanical vibration can be defined as the regular or irregular repetitive movement that makes the body leave its resting state. Mechanical vibrations have an important role in keeping the bones and joints healthy. This review study aimed to investigate the effect of mechanical vibration in the evaluation and replacement of bone cement-anchored implants in human bone. The empirical studies related to mechanical vibrations and bone cement-anchored implants were reviewed. The combinations used to search for studies related to the topic included mechanical vibrations, evaluation, replacement, bone, cement-anchored implants, and human bone. The reviewed studies show that mechanical vibration, either local or whole-body, promotes bone growth in and around the implant. The stimulation of bone growth is important for the strength and durability of cement-anchored bone implants. Through the reviewed studies, it was concluded that local or whole-body mechanical vibration improves the stability and durability of bone and bone implants. Mechanical vibration achieves this effect by increasing bone formation in and around the implants and by improving the contact between the implant and the bone.

show abstract

Numerical analysis of the mechanical response of novel swelling bone implants in polyurethane foams

Cited by 3 publications

References 48 publications

Validation of the Finite Element Model versus Biomechanical Assessments of Dental Implants and Total Knee Replacements

Validation of the Finite Element Model versus Biomechanical Assessments of Dental Implants and Total Knee Replacements

Fixation strength of swelling copolymeric anchors in artificial bone

A short review on the effect of mechanical vibration in the evaluation and replacement of bone cement-anchored implants in human bone

Contact Info

Product

Resources

About