Monitoring of fracture healing by lateral and axial vibration analysis

Nikiforidis, George; Bezerianos, Anastasios; Dimarogonas, Andrew D.; Sutherland, Conor J.

doi:10.1016/0021-9290(90)90060-g

Cited by 49 publications

(26 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…A similar resin block boundary condition has been used in the modal analysis of the fractured tibia [9,11,26] and therefore the cantilevered boundary condition was considered an acceptable first attempt at representing the in vivo conditions. However, considering the strong influence the boundary conditions have on the modal parameters obtained, further investigation is required to assess the impact of boundary condition changes on the measured differences in modal parameters due to interfacial changes representing the progression of TFOI.…”

Section: Discussionmentioning

confidence: 99%

Ability of modal analysis to detect osseointegration of implants in transfemoral amputees: a physical model study

Cairns

Pearcy

Smeathers

et al. 2012

Med Biol Eng Comput

View full text Add to dashboard Cite

Owing to the successful use of non-invasive vibration analysis to monitor the progression of dental implant healing and stabilization, it is now being considered as a method to monitor femoral implants in transfemoral amputees. This study uses composite femur-implant physical models to investigate the ability of modal analysis to detect changes at the interface between the implant and bone simulating those that occur during osseointegration. Using electromagnetic shaker excitation, differences were detected in the resonant frequencies and mode shapes of the model when the implant fit in the bone was altered to simulate the two interface cases considered: firm and loose fixation. The study showed that it is beneficial to examine higher resonant frequencies and their mode shapes (rather than the fundamental frequency only) when assessing fixation. The influence of the model boundary conditions on the modal parameters was also demonstrated. Further work is required to more accurately model the mechanical changes occurring at the bone-implant interface in vivo, as well as further refinement of the model boundary conditions to appropriately represent the in vivo conditions. Nevertheless the ability to detect changes in the model dynamic properties demonstrates the potential of modal analysis in this application and warrants further investigation.

show abstract

Section: Discussionmentioning

confidence: 99%

Ability of modal analysis to detect osseointegration of implants in transfemoral amputees: a physical model study

Cairns

Pearcy

Smeathers

et al. 2012

Med Biol Eng Comput

View full text Add to dashboard Cite

show abstract

“…A fractured femur was represented by a cylinder with a length of L [22,26,27] as illustrated in Fig. 1(a-d) A callus was shaped by an arc with the origin at the center of the fracture gap.…”

Section: Analysis Of a Simple Modelmentioning

confidence: 99%

Sensitivities of biomechanical assessment methods for fracture healing of long bones

Chen

Zhang

et al. 2015

Medical Engineering & Physics

View full text Add to dashboard Cite

“…Vibration analysis is a well-established technique in industry for analyzing physical structural properties of materials including their densities. There were a number of encouraging reports of vi bration analysis to assess bone integrity [11][12][13][14][15][16][17][18][19]. These were mainly in vitro on adults, but our study has been c onducted in children in vivo and t he vibration analysis and DXA derived BMD results have been compared.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Vibration Analysis to Assess Bone Mineral Density in Children

Razaghi

Saatchi

Bishop

et al. 2020

Wseas Transactions on Biology and Biomedicine

View full text Add to dashboard Cite

The effectiveness of vibration analysis to assess bone mineral density (BMD) in children with suspected reduction in bone density was studied. A system was designed that measured the ulna's vibration responses in vivo. The system was evaluated on the ulnae of 48 children (mean age=12.0, std=3.5 years), 31 of whom had been confirmed to have osteogenesis imperfecta (OI). All ch ildren had dual energy X-ray absorptiometry (DXA) scan as part of their routine clinical care and vibration analysis was pe rformed on t he same day. Frequency spectra of the ulnae's vibration responses were obtained and processed by principal component analysis. Four main principal components were selected and together with age, sex and right hand ulna's length were used in a regression analysis to estimate BMD. Regression analysis was repeated using the children's leave-one-out and partitioni ng methods. The percentage similarity and correlation between the DXA-derived and vibration analysis estimated BMDs using the leave-one-out were 80.34% and 0.59 and for partitioning were 74.2% and 0.64 respectively. There was correlation between vibration analysis BMD readings a nd those derived from DXA however a larger study will be needed to better establish the extent to which vibration analysis can assist in assessing bone density in clinical environments.

show abstract

Monitoring of fracture healing by lateral and axial vibration analysis

Cited by 49 publications

References 12 publications

Ability of modal analysis to detect osseointegration of implants in transfemoral amputees: a physical model study

Ability of modal analysis to detect osseointegration of implants in transfemoral amputees: a physical model study

Sensitivities of biomechanical assessment methods for fracture healing of long bones

Evaluation of Vibration Analysis to Assess Bone Mineral Density in Children

Contact Info

Product

Resources

About