<p class="abstract"><strong>Background:</strong> The objective of the study was to assess the epidemiology and pattern of trauma in paediatric patients coming to a tertiary care trauma centre in Purvanchal region of country.</p><p class="abstract"><strong>Methods:</strong> Study was conducted at Trauma Centre, Institute of Medical Sciences, BHU. A retrospective data was collected from the emergency entry record book for the paediatric patients coming to emergency with trauma from January to December 2018. A total of 328 patients were included in study. Patient with accidental hanging and those of sexual assault and drowning were not taken in study.<strong></strong></p><p class="abstract"><strong>Results:</strong> Patients in the age group of above 6 years were most numerous 61%. Boys were more commonly injured then girls of same age group with M: F being 1.4:1.  Fall was the most common mode of injury overall 45.12% and for the children below 6 years of age 63%. However, RTA was the most common cause in children of above 6 years age group 40.5%, closely followed by fall. Home was found to be the most common location of injury. Females outnumbered males in case of assault injury (7 of 12). Musculoskeletal injury was most common 42%, head injury 27%, polytrauma 12%, while superficial injuries in form of abrasion, contusion etc were 19%. Of all 42% were taken inpatient, 50% discharged on OPD basis and 8% went LAMA.   </p><p class="abstract"><strong>Conclusions:</strong> Most of the times the paediatric traumas occur in foreseeable circumstances, most of them occurring at home or around it suggesting the need for more supervision during playing and identification of specific risk factors for these injuries in our setting. Planning of strategies should be according to the epidemiological trends.</p>

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<p class="abstract"><strong>Background:</strong> The objective of this study was to find out the correlation among type of implant, type of fracture and quality of bone in a cadaveric model of unstable fracture neck of femur (Pauwels type 3) fixed with either; proximal femoral nail (PFN), dynamic hip screw (DHS), dynamic hip screw with an anti-rotation screw (DHS and ARS) or cannulated cancellous screws (CCS).</p><p class="abstract"><strong>Methods:</strong> This study was conducted on 24 cadaveric bones (6 in each group) in which unstable fracture neck of femur (Pauwels type 3) were created and fractures in each group were fixed with different implants after creating a comparable group using DEXA scan. These were tested on a cyclic physiological loading machine at 2 cycles per second with a load of 200kg. The test was observed for 10,000 loading cycles or till failure whichever occurred earlier. Subsidence was measured and analyzed.<strong></strong></p><p class="abstract"><strong>Results:</strong> Five specimens in the PFN group, 3 specimens in the DHS and ARS and DHS group completed 10,000 cycles while all the specimens in CCS group failed before 10000 cycles. Mean subsidence of the PFN group was significantly lower than the other groups.</p><p class="abstract"><strong>Conclusions:</strong> PFN constructs were stronger than the other constructs. However, these data must be interpreted as strictly biomechanical, representing only part of the scenario at work in vivo. Nonetheless, the significant findings of increased strength of fixation over the DHS, DHS with ARS and CCS certainly appear to support the use of PFN clinically.</p><p class="abstract"> </p>

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