Ultrasound Transmission Loss Across Transverse and Oblique Bone Fractures: An In Vitro Study

Dodd, S. P.; Cunningham, J L; Miles, A W; Gheduzzi, S; Humphrey, Victor F.

doi:10.1016/j.ultrasmedbio.2007.09.002

Cited by 31 publications

(22 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Of these two modalities of measurement (velocity and attenuation), it has been demonstrated that attenuation is by far the more sensitive to the presence of a fracture which results in a large loss in signal amplitude [14]. Bridging of the fracture with an external callus substantially reduces the loss in signal amplitude [15], suggesting that measuring the change in signal amplitude across a healing fracture could be an effective method of quantifying fracture healing.…”

Section: Other Methods To Measure the Changes In Callus Stiffnessmentioning

confidence: 99%

Monitoring the Mechanical Properties of Healing Bone

Claes

Cunningham

2009

Clinical Orthopaedics &Amp; Related Research

125

109

View full text Add to dashboard Cite

Fracture healing is normally assessed through an interpretation of radiographs, clinical evaluation, including pain on weight bearing, and a manual assessment of the mobility of the fracture. These assessments are subjective and their accuracy in determining when a fracture has healed has been questioned. Viewed in mechanical terms, fracture healing represents a steady increase in strength and stiffness of a broken bone and it is only when these values are sufficiently high to support unrestricted weight bearing that a fracture can be said to be healed. Information on the rate of increase of the mechanical properties of a healing bone is therefore valuable in determining both the rate at which a fracture will heal and in helping to define an objective and measurable endpoint of healing. A number of techniques have been developed to quantify bone healing in mechanical terms and these are described and discussed in detail. Clinical studies, in which measurements of fracture stiffness have been used to identify a quantifiable end point of healing, compare different treatment methods, predictably determine whether a fracture will heal, and identify factors which most influence healing, are reviewed and discussed.

show abstract

Section: Other Methods To Measure the Changes In Callus Stiffnessmentioning

confidence: 99%

Monitoring the Mechanical Properties of Healing Bone

Claes

Cunningham

2009

Clinical Orthopaedics &Amp; Related Research

125

109

View full text Add to dashboard Cite

show abstract

“…In, (Dodd et al 2007, Dodd et al 2008, Protopappas et al 2006, 2D isotropic models of healing long bones were presented in which the material properties of callus were varying to simulate different healing stages. The FAS velocity and attenuation were calculated using the axial transmission method.…”

Section: Computational Modeling Of the Fracture Healing Processmentioning

confidence: 99%

Computational Modeling of Long Bone Microstructure and Ultrasonic Evaluation of the Fracture Healing Process

Potsika¹,

Polyzos²,

Fotiadis³

2017

JSSCM

View full text Add to dashboard Cite

Bone is a composite medium organized into a complex hierarchical structure. Several research groups worldwide have applied ultrasonic techniques to investigate experimentally and numerically the structure of bone at different hierarchical levels. The advance in imaging modalities such as micro-computed tomography and scanning acoustic microscopy in combination with the use of robust computational tools has led to the development of realistic computational models of long bones. The ultrasonic assessment of bone microstructure and fracture healing using computational techniques can provide insight into complicated wave propagation effects which cannot be evaluated using traditional experimental procedures. This paper presents the milestone studies in the domain of ultrasonic evaluation of bone diseases such as osteoporosis and bone healing using numerical methods. The results indicate the significant diagnostic and monitoring role of quantitative ultrasound.

show abstract

“…The ultrasonic evaluation of fracture healing using computational methods was initially based on the axial transmission technique (Dodd et al 2007, Dodd et al 2008 . In these studies, the cortical and callus tissues were simulated as 2D, homogeneous and isotropic materials.…”

Section: Fracture Healingmentioning

confidence: 99%

“…In these studies, the cortical and callus tissues were simulated as 2D, homogeneous and isotropic materials. More specifically, in (Dodd et al 2007, Dodd et al 2008) the axial transmission of ultrasonic waves at 200 kHz was examined considering different geometries of fracture and healing stages. The FAS velocity and attenuation, as well as the ultrasound signal loss were calculated.…”

Section: Fracture Healingmentioning

confidence: 99%

“…Lower FAS velocity values were observed due to the fracture gap and an energy attenuation of the FAS due to wave propagation interaction phenomena which evolve in the discontinuity region. Also, it was shown that an oblique fracture leads to the reduction in the extra time delay of the propagating wave comparing to the transverse case and to the decrease of the signal amplitude (Dodd et al 2007, Dodd et al 2008. The angle of the oblique fracture was further investigated.…”

Section: Fracture Healingmentioning

confidence: 99%

See 1 more Smart Citation

Ultrasonic evaluation of intact, healing and osteoporotic long bones

Potsika¹,

Protopappas²,

Grivas³

et al. 2016

J Serb Soc Comp Mech

View full text Add to dashboard Cite

Quantitative ultrasound (QUS) has been introduced in recent years for the comprehensive noninvasive and non-ionizing evaluation of bones. This paper presents a review of our research work of the last decade including experimental and computational studies for the ultrasonic assessment of fracture healing and osteoporosis. The axial transmission and the backscattering methods have been applied to investigate the variation of ultrasound velocity, the propagation of guided waves and the interaction of the complex scattering phenomena with bones. In the macrostructure level, computational models have been established mimicking healthy and pathologic bones, while the use of imaging modalities has opened new perspectives for the evaluation of the bone microstructure using QUS. In the nanostructure level, a deterministic hybrid model for bone healing and angiogenesis predictions under the presence of QUS has been established incorporating the spatiotemporal development of soft tissues, bone and the evolution of blood vessel network. The results reveal the promising monitoring potential of QUS and its positive impact on the acceleration of the bone healing process.

show abstract

Ultrasound Transmission Loss Across Transverse and Oblique Bone Fractures: An In Vitro Study

Cited by 31 publications

References 16 publications

Monitoring the Mechanical Properties of Healing Bone

Monitoring the Mechanical Properties of Healing Bone

Computational Modeling of Long Bone Microstructure and Ultrasonic Evaluation of the Fracture Healing Process

Ultrasonic evaluation of intact, healing and osteoporotic long bones

Contact Info

Product

Resources

About