Investigation of an anisotropic tortuosity in a Biot model of ultrasonic propagation in cancellous bone

2007 ◽  
Vol 121 (1) ◽  
pp. 568-574 ◽  
Author(s):  
Elinor R. Hughes ◽  
Timothy G. Leighton ◽  
Paul R. White ◽  
Graham W. Petley
Keyword(s):  
Cancellous Bone ◽  
Biot Model ◽  
Ultrasonic Propagation

Effects of bone marrow on the ultrasonic propagation in the cancellous bone ‐ Comparative study on experiment and simulation

2008 ◽  
Vol 123 (5) ◽  
pp. 3637-3637
Author(s):  
Takashi Saeki ◽  
Masahiro Emura ◽  
Katsunori Mizuno ◽  
Mami Matsukawa ◽  
Yoshiki Nagatani
Keyword(s):  
Bone Marrow ◽  
Comparative Study ◽  
Cancellous Bone ◽  
Experiment And Simulation ◽  
Ultrasonic Propagation

scholarly journals DETERMINATION OF THE PARAMETERS OF CANCELLOUS BONE USING HIGH FREQUENCY ACOUSTIC MEASUREMENTS II: INVERSE PROBLEMS

2007 ◽  
Vol 15 (02) ◽  
pp. 199-220 ◽  
Author(s):  
JAMES L. BUCHANAN ◽  
ROBERT P. GILBERT
Keyword(s):  
Cancellous Bone ◽  
High Frequency ◽  
Acoustic Pressure ◽  
Measured Data ◽  
Acoustic Measurements ◽  
Biot Model ◽  
Parameter Recovery ◽  
Recovery Algorithm ◽  
Poroelastic Media

In a precursor to this article the Biot model was used to model poroelastic media. The question this article addresses is whether the sort of experiments described by McKelvie and Palmer, Williams, and Hosokawa and Otani can be used to determine the parameters of the Biot model. A method of computing acoustic pressure in the low 100 kHz range was developed in Buchanan and Gilbert, "Determination of the parameters of cancellous bone using high frequency acoustic measurements," which appeared in Math. Comput. Modelling. In the present work a parameter recovery algorithm which uses parallel processing is developed and tested. It is found that when it is assumed that the agreement between calculated and measured data is about two digits, porosity can be determined to within about 1–2% and permeability, pore size and the bulk moduli to within about 40%, but in most cases less than 20%.

A stratified model for ultrasonic propagation in cancellous bone

1998 ◽  
Vol 103 (5) ◽  
pp. 3039-3039 ◽  
Author(s):  
Elinor R. Hubbuck ◽  
Timothy G. Leighton ◽  
Paul R. White ◽  
Graham W. Petley
Keyword(s):  
Cancellous Bone ◽  
Ultrasonic Propagation ◽  
Stratified Model

Ultrasonic propagation in cancellous bone: a new stratified model

1999 ◽  
Vol 25 (5) ◽  
pp. 811-821 ◽  
Author(s):  
Elinor Ruth Hughes ◽  
Timothy Grant Leighton ◽  
Graham William Petley ◽  
Paul Robert White
Keyword(s):  
Cancellous Bone ◽  
Ultrasonic Propagation ◽  
Stratified Model

DETERMINATION OF THE PARAMETERS OF CANCELLOUS BONE USING LOW FREQUENCY ACOUSTIC MEASUREMENTS

2004 ◽  
Vol 12 (02) ◽  
pp. 99-126 ◽  
Author(s):  
JAMES L. BUCHANAN ◽  
ROBERT P. GILBERT ◽  
KHALDOUN KHASHANAH
Keyword(s):  
Cancellous Bone ◽  
Low Frequency ◽  
Acoustic Measurements ◽  
Biot Model ◽  
Poroelastic Media ◽  
High Degree

The Biot model is widely used to model poroelastic media. Several authors have studied its applicability to cancellous bone. In this article the feasibility of determining the Biot parameters of cancellous bone by acoustic interrogation using frequencies in the 5–15 kHz range is studied. It is found that the porosity of the specimen can be determined with a high degree of accuracy. The degree to which other parameters can be determined accurately depends upon porosity.

The Repair and Healing of Two Traumatic Ilial Body Fractures Adjacent to Cemented Total Hip Acetabular Components

1992 ◽  
Vol 05 (02) ◽  
pp. 85-89
Author(s):  
P. K. Shires ◽  
T. L. Dew
Keyword(s):  
Internal Fixation ◽  
Cancellous Bone ◽  
Surgical Techniques ◽  
Autogenous Bone ◽  
Cancellous Bone Graft ◽  
Standard Methods ◽  
Intravenous Antibiotics ◽  
Prophylactic Use ◽  
Acetabular Components ◽  
Autogenous Bone Grafts

SummaryThis report has documented the repair and healing of two ilial fractures in dogs which were compounded by the presence of a cemented acetabular prosthesis. While specific recommendations can not be made from such a small number of cases, the information presented herein suggests that such fractures will heal without complication if aseptic surgical techniques and standard methods of internal fixation are employed. The authors strongly recommend the prophylactic use of intravenous antibiotics and the placement of cancellous bone graft when the repair of such fractures is attempted.Two traumatic ilial fractures involving the cement/bone interface of acetabular prostheses were repaired using lag screws, cerclage wires, and autogenous bone grafts. The fractures healed and ambulatory function was regained.

Arthrodesis of the Distal Two Tarsal Joints in the Horse Using Perforated Stainless Steel Cylinders and Cancellous Bone Graft

1991 ◽  
Vol 4 (01) ◽  
pp. 21-27 ◽  
Author(s):  
R. M. Archer ◽  
R. K. Schneider
Keyword(s):  
Stainless Steel ◽  
Bone Graft ◽  
Cancellous Bone ◽  
Cancellous Bone Graft ◽  
The Third ◽  
Partial Fusion

SummaryTwo perforated stainless steel cylinders and autogenous cancellous bone were implanted into each of the distal intertarsal and tarsometatarsal joints of seven horses. In two control horses holes were drilled into each joint and autogenous cancellous bone was implanted without stainless steel cylinders. Horses which had cylinders implanted in the distal tarsal joints exhibited less lameness and were more comfortable following surgery than were the control horses. Fracture of the third tarsal, central tarsal, or third metatarsal occurred in five of the seven horses implanted with stainless steel cylinders within 45 days of surgery. Two implanted horses and two control horses were observed for five months after surgery. Partial fusion of the distal tarsal joints occurred in all four horses. Control horses were more lame than the implanted horses and developed a large bony exostosis over the medial distal tarsus.

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