Introduction Bone mineral density (BMD) is an essential indicator for diagnosing osteoporosis and evaluating the success of osteoporotic treatment. Dual-energy X-ray absorptiometry (DEXA), quantitative ultrasonography (QUS), and quantitative computed tomography (QCT) are frequently used for measuring BMD. The objective of the study was to evaluate the ability of QUS to screen for osteoporosis and bone density in postmenopausal women by calibrating it against DEXA. Methods This cross-sectional study was conducted at the Department of Orthopedics and Trauma Center of the tertiary care center, Lucknow. A total of 90 patients visited this department from August 2017 to July 2018 for the present study. BMD in the same patient was evaluated by using DEXA and ultrasonography methods. Data were entered in Microsoft Excel and analyzed by using SPSS Software. Results According to linear regression analysis, T neck was found statistically significant with T QUS (p<0.001) and z QUS (p<0.001). T lumbar and T wrist were found statistically significant with T QUS (p<0.001) but not with z QUS (p>0.001). Z neck was found statistically significant with T QUS (p<0.001) and z QUS (p<0.001). Z lumbar was found statistically significant with T QUS (p<0.001) but not with z QUS (p>0.005). Z wrist was not found statistically significant with T QUS (p>0.005) or with z QUS (p>0.005). Conclusion In the present study, we found that QUS can be used as a screening tool for detecting osteoporosis by measuring BMD in contrast to DEXA. QUS also can be used to predict the DEXA values for osteoporosis and to detect osteoporosis.

Background: Lockdown imposed to limit the spread of COVID 19 may have had a significant effect on the time to care, demography, injury causation, injury characteristics, volume and nature of admission, management and outcome of paediatric orthopaedic trauma patients. Objective: To document the effect of lockdown on the time to care at KGMU, use of ambulance, volume and type of admissions, demography, injury causation, injury characteristics,  management and outcome of paediatric orthopaedic trauma patients. Methods:. This record review compared age, sex, type of admission, mechanism of injury, injury characteristics, type of treatment, vehicle used for transport, and outcome among patients admitted in pre-lockdown, lockdown and post lockdown.  Results: Lockdown was associated with decrease in the number of cases (p<0.01), increase in the time since injury to reception (p<0.040), a rise in the share of referred admission (p<0.040), time since reception at KGMU, time to definitive care (p<0.001), high energy falls (p<0.001), injuries at home (p<0.001), higher ISS (p<0.001), non operative treatment (p=0.038) and greater use of ambulance  (p=0.003). Conclusion: Lockdown resulted in a significant change in the causation and management of injury, significant delays in timeliness of care, reduction in the volume of admissions, an increase in injury severity and share of referral admissions.