In this study, we aimed to show that subtrochanteric femur fractures, an uncommon type of fracture in the paediatric age group, can be treated with titanium elastic nailing (TEN). We reviewed the patients treated with TEN in the paediatric age group with subtrochanteric femur fractures who had been treated at the Orthopaedics and Traumatology Clinic of Izmir Tepecik Research and Training Hospital between January 2011 and December 2016 retrospectively. All fractures were fixed by retrograde nailing with supracondylar entry following reduction. Patients’ demographics as well as data such as fracture type, fracture level, time of operation, reduction type, time to union, shortness, additional fixation, duration of additional fixation, Flynn scores and reduction loss were evaluated. The 20 patients included in our study were followed up for at least 1 year, had an age range of 54–173 months (mean, 104 ± 31.82 months) and were operated within 2–11 days after fracture. All patients had fracture union and only three patients had union with an angulation of less than 5°. None of the patients had limb length inequality. Fourteen patients underwent reoperation, all of these were routine operations for implant removal and no patients required reoperation for complications. We think that paediatric subtrochanteric femur fractures can be treated by TEN fixation using the proper technique, with a limited invasive intervention.

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The evaluation of epiphyseal areas by magnetic resonance imaging (MRI) for forensic age estimation is an important supportive diagnostic method to prevent repeated radiation exposure without a valid medical reason. There are still not enough individuals being analyzed with MRI for age estimation. The aim of this study was to investigate the utility of T1-weighted turbo spin echo (T1-TSE) MRI sequences in determining the degree of ossification of the distal femoral and proximal tibial epiphyses in a Turkish population. In this study, images from 649 patients (335 males and 314 females) aged 10-30 years were retrospectively evaluated with sagittal T1-weighted turbo spin echo (T1-TSE) MRI sequences of the knee. Proximal tibial and distal femoral epiphysis were scored by two different observers twice using the combined staging system described by Schmeling and Kellinghaus. Spearman's rank correlation analysis indicated a significant positive relationship between age and ossification stages of the distal femoral and proximal tibial epiphyses (p < 0.001). The intra-and inter-observer reliabilities in evaluating the femur and tibia were separately determined and gave promising results and Cohen's kappa statistics ranged from κ = 0.886 and κ = 0.961. The minimal ages of patients with stage 4 ossification were 15.1 years for females and 15.8 years for males for the distal tibial epiphysis and 15.4 years for females and 17 years for males for the distal femoral epiphysis. This study show that (T1-TSE) MRI and the applicability and Schmeling and Kellinghaus staging method of the knee can be performed for living 14-to 17-year-old individuals in need of a supportive noninvasive method for estimating forensic age.

Building a reliable biological profile from decomposed remains depends heavily on the accurate estimation of sex. A variety of methods based on every single skeletal element have been developed over the years for different populations employing both osteological and virtual methods. The latter seem to be a reasonable alternative in countries lacking osteological reference collections. The current study used 3D virtual models of calcanei from CT scans of living adults to develop a sex estimation method for contemporary Turkish. Four hundred and twenty eight calcanei CT scans were analysed. The sample was divided in two subsamples: an original (N=348) and a validation sample (N=80) with similar distribution of males and females. Nine classical measurements were taken using the 3D models of the calcanei and two different statistical methods (Discriminant function analysis and Binary logistic regression) were used. Classification accuracy ranged from 82% to 98% for the validation sample and it was consistently high using any of the two methods. Sex bias seems to be lower for most of the logistic regression equations compared to the discriminant functions. These results, however, need further testing to be verified. Based on the results of this study we recommend the use of both methods for sex estimation from the measurements of the calcaneus bone in a Turkish population.