Department of Mechanical engineering
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Item Monitoring of Fracture Healing Process by Acousto-Ultrasonic Technique Sharad Shrivastava1*(Universiti Putra Malaysia Press, 2019) Shrivastava, SharadPresently the radiological examination is widely used for the assessment of in vivo bone condition. In some clinical problems such as diagnosis of the point of union of a fracture; the manual assessment is used along with radiological examination. Uncertainty regarding the significance of the radiographic and clinical findings may result in unnecessary long immobilization periods which can produce discomfort for the patient, as well as possible stiffness of the joints and sometimes permanent loss of mobility specially in older population. This paper deals with the in vivo analysis of bones by Acousto-Ultrasonic technique. The fracture was created through surgery on one of the limbs of rabbit and healing process was monitored through acousto-ultrasonic technique. A new index known as bone healing index was defined to calculate the end point of healing. In most of the cases, the bone healing index value was found to be 0.80, indicating that 80 % of the strength could only be restored at the completion of healing process.Item Future research directions with Acoustic Emission and Acousto–Ultrasonic technique(Inderscience, 2015) Shrivastava, SharadThe paper deals with the existing research gap in medical field by the application of non-destructive testing technique. The paper gives an general idea about the various non-destructive testing techniques used in Biomedical field. It also covers the disadvantages of various techniques and how these disadvantages can be taken care by Acoustic emission and Acousto–ultrasonic technique. Based on literature review the gaps have been identified for the future research by these techniques. The assessment of bone condition can be effectively done by using acoustic emission and acousto–ultrasonic technique. Acousto–ultrasonic technique has already proved its usefulness in the assessing the composite materials. As bone is also a composite material, definitely this technique might give good results while assessing the bone condition.Item Assessment of bone condition by acoustic emission technique: A review(Scientific Research Publishing, 2009-03) Shrivastava, SharadThe paper deals with the review of acoustic emission technique in biomedical field. The re- view is done with the aim to provide an ov erview of the use of AE technique in biomedical field, mainly co ncentrated on the AE beha vior o f bone under different loading conditions, its depend- ence on strain rate, in osteoporosis, monitoring the fracture healing process of bone. The over- all conclusion from the review was that almost all the studies in bone indicated that the initial AE occurs only in the plastic region and just prior to yield. That means the use of AE tech- nique for clinical application cannot be consid- ered as a safe technique, but the early occur- rence of AE events from callus promises the application of AE technique for monitoring the fracture healing process. The negligible effect of soft tissues on AE response of bone prom- ises AE to become a non-invasive method for assessment of bone condition