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 In vitro study of bone condition using acousto-ultrasonic technique(Inder Science, 2011-04) Shrivastava, SharadThis paper deals with the in vitro analysis of bones by acousto-ultrasonic technique. The comparison has been made between normal bones and fractured bones. The significant difference between the Stress Wave Factor (SWF) of the two suggests that this technique can be used for monitoring the fracture healing process and various other bone abnormalities. The good correlation between SWF and the failure strength of the dry bone (R = 0.99) also indicates that this technique can also be applied to predict the mechanical integrity of bone. The good correlation between SWF and depth of crack indicates that the technique can also be used to measure the severity of the crack.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.