Derivation of regression equation for estimation of stature by using measurement of femur

Background: Reconstruction of stature from broken fragments of bones is used as a part of the analysis in forensic anthropology for the purpose of identification of an individual. Long bones are traditionally used for estimation of stature. Long bones such as femur and tibia are the most important components of an individual’s stature. In the present study, regression equation was derived for estimation of maximum femoral length from measurements of the proximal end of femur. Aims and Objectives: To derive regression equations using femur length from measurements of neck-shaft angle and maximum vertical diameter of femur head. Materials and Methods: Two hundred unpaired femurs, devoid of gross pathology and irrespective of gender obtained from the Department of Anatomy of both VMKVMC &VMHMC were used for this study. The correlation coefficients of the neck-shaft angle and maximum diameter of head of femur to the maximum length of femur was calculated. These co-efficient were used for formulation of regression equation. Results: The present study was done to show that the maximum length of femur can be best calculated from the metric evaluation of vertical diameter of the head when the proximal fragments are available. The parameters in our study which includes maximum vertical diameter of the head showed positive correlation but the neck- shaft angle showed a low correlation and is not reliable to measure MFL from it. Conclusion: The present study concludes that the maximum length of femur can be best calculated from the metric evaluation of vertical diameter of the head when the proximal fragments are available.

Sexual Dimorphism of Femoral Head - An Observational Study in the Population of Odisha

BACKGROUND Femur is the longest and strongest bone of the human body. It also takes relatively longer time to disintegrate after death, hence morphometric analysis of skeletal remains of femoral head can be considered for the determination of age and sex for forensic expert, anthropologist as well as anatomist. The present study was an attempt to establish sex of a skeleton by the help of femoral head diameters which will be of great help in medico-legal and anthropometric studies. METHODS The present study was carried out in the S C B Medical College Cuttack from May 2019 to June 2020 by taking 84 dried and intact femora. The vertical head diameter of femoral head and head circumference were measured by the vernier’ s caliper and measuring tape in centimeters. RESULTS The result showed significant difference in the head circumference and the vertical diameter of head of femur of the male and female femora. It was found that the mean femoral head circumference of the male was 13.296 cm with a “S.D” of 0.8694 cm and female was 12.023 cm with a “S.D” of 0.73 cm and vertical diameter of male was 4.1520 cm with a “SD” of 0.3635 cm and that of female femora was 3.7231 cm with a “S.D” of 0.2264 cm respectively. CONCLUSIONS There was a significant difference in the head circumference and the vertical diameter of head of femur of the male and female femora which determines sexual dimorphism. KEY WORDS Anthropometry, Medico-Legal, and Standard Deviation (SD)

Ultrasonographic assessment of the caudal vena cava diameter in cats during blood donation

Objectives Ultrasonography of the caudal vena cava (CVC) has been previously established to assess fluid status in dogs but not in cats. The aim of this study was to determine CVC diameter changes during feline blood donation. Methods Inter- and intra-observer variability were assessed in 11 client-owned cats. Minimal and maximal CVC diameters were assessed longitudinally in the subxiphoid view (SV) and right paralumbar view (PV), and transversely in the right hepatic intercostal view (HV). Eighteen client-owned, healthy, anaesthetised cats were evaluated during 21 blood donation procedures of 10 ml/kg in the same anatomical locations before (T0) and after (T1) blood donation, and after volume resuscitation with 30 ml/kg lactated Ringer’s solution (T2). The CVC index was calculated. Results Intra-observer variability was acceptable for all probe positions, except for the HV, whereas inter-observer variability was considered unacceptable for all probe positions. Complete measurements were obtained during 21 blood donations at T0, T1 and T2 at the SV, during 18/21 blood donations at the HV and during 16/21 blood donations at the PV. At the SV, the minimal CVC diameter between T1 and T2 ( P <0.001), and the maximal CVC diameter between T0 and T1 and between T1 and T2 ( P <0.001) were significantly different. At the HV, the minimal vertical diameter, maximal vertical diameter and minimal horizontal diameter were different between all timepoints ( P <0.001). The maximal horizontal diameter was different between T1 and T2 ( P = 0.002). At the PV, both diameters were different between all timepoints ( P <0.001). The CVC index was not different between timepoints. Conclusion and relevance Significant probe position dependent CVC diameter changes with marked overlap were observed before and after blood donation, and after fluid bolus. No absolute CVC diameter could be used to indicate hypovolaemia. Ultrasonographic assessment of the feline CVC is highly operator-dependent. The CVC index is not useful in cats.

Perianal ultrasound (PAUS): visualization of sphincter muscles and comparison with digital-rectal examination (DRE) in females

Background The aim of this study was to determine the reproducibility and tolerance of perianal ultrasound (PAUS) and detect differences in sphincter muscles between various measuring positions and different maneuvers. PAUS was compared to digital-rectal examination (DRE) to see if sphincter contraction is visible and gradable in ultrasound volumes. Methods Fifty women underwent a medical history, DRU and PAUS by two uro-gynecologists in a prospective trial. PAUS volumes were measured via different parameters in different maneuvers. Examiners’ DRE impressions of sphincter tone were scaled with the DRESS-score. All patients completed a questionnaire. Results Thirty-five patients with complete PAUS and DRE were included in the study. Fifteen patients were excluded due to poor ultrasound volume quality or sphincter defects. Comparison of sphincter muscle thickness at different positions in PAUS showed significant differences between 6 and 12 o’clock positions (12 > 6 o’clock) and diameters (horizontal > vertical). No difference was found between the examiners. In comparison of rest and contraction only the vertical diameter changed. There was a negative but not significant correlation between PAUS measurements and DRESS-scores. Twenty-six patients completed the questionnaire that revealed women preferred PAUS over DRE. Conclusion PAUS is a reproducible and good tool to visualize the anal canal. It is comfortable for patients and easily handled by examiners. Sphincter muscle contraction is iso-volumetric. Vertical diameter changes during contraction leading the anal canal change its shape to oval due to external influence. PAUS is the ideal additional tool to visualize relevant structures that are palpable on DRE.

Olecranon aperture of the humerus: A morphometrical study

Introduction/Objective. Olecranon aperture is a variable opening in the septum between the olecranon and coronoid fossae. Its frequency varies largely in different populations and knowledge of its presence may have clinical implications. The objective of our study was to determine its prevalence in a sample of Serbian population and to investigate its morphology and morphometrical features, as well as its relation to the distal end of humerus. Methods. A material used were 70 human dry humeri from the bone collection of the Department of Anatomy, Faculty of Medicine, University of Nis. We analyzed the presence, shape, transverse and vertical diameter of the aperture, its distance to the tips of the epicondyles from medial (MB) and lateral border (LB), as well as the distance between epicondyles (EW) and translucency of the septum in the bones with no aperture. Vernier caliper was used for measurements of the diameters and distances. Results. Eight olecranon aperture were observed in seven bones (10%), seven on the left and one on the right side. Half of them were oval-shaped, while round, triangular, and irregular shape were found. Translucent septum in humeri with no aperture was present in 67.1% of the sample. There were no significant differences between MB and LB, neither between EW in bones with aperture and with septum. Conclusion. Our study presented the rare data about the frequency of olecranon aperture in Serbian population, suggesting that robusticity of the humerus is not related to the presence of the olecranon aperture.

­­A new species and a key to 10 species of the genus Lemba Huang, 1983 (Orthoptera: Catantopidae) from China

A new species and a key to 10 species of the genus Lemba Huang, 1983, namely Lemba wushanensis sp. nov. is described in this paper from China. The new species is similar to L. sichuanensis Ma et al, 1994, but differs from the latter by the length of tegmen 2.7 times width in male, length of interspace of mesosternum 3.5 times width in male, posterior margin of epiproct straight; ancorae of epiphallus not inward tilt and vertical diameter 1.8 times subocular furrow in female. The type specimens are deposited in the Northwest Plateau Institute of Biology, Chinese Academy of Sciences, Xining, China.

Morphological Characteristics of Normal Foveal Avascular Zone by Optical Coherence Tomography Angiography

Purpose. To provide quantitative measurements for the foveal avascular zone (FAZ) and to describe its morphological characteristics by optical coherence tomography angiography (OCT-A). Design. Cross-sectional observational case series. Methods. Healthy volunteers were recruited and evaluated using Triton-DRI SS-OCT Angiography. A 4.5 × 4.5 mm square was evaluated by OCT-A center around the fovea. Superficial and deep capillary plexus were identified, and different quantitative measurements were conducted along with categorization of the FAZ pattern. Results. Eighty-two eyes (41 volunteers) were evaluated. Mean age was 30.59 ± 7.6 years (23–42 years). Mean subcentral retinal thickness was 200.1 ± 5.66 um (192–210 um). The number of terminal vessels was variable (range, 8–11). Mean maximum terminal vessel-to-vessel intervening distance was 527.8 ± 60.3 um (471–674 um). Mean minimum terminal vessel-to-vessel intervening distance was 296.7 ± 45.8 um (233–373 um). Mean maximum horizontal diameter of FAZ (superficial) was 716.17 ± 124.09 um, while mean maximum vertical diameter of FAZ (superficial) was 667.76 ± 131.28 um. Mean maximum horizontal diameter of FAZ (deep) was 823.19 ± 144.92 um, while mean maximum vertical diameter of FAZ (deep) was 794.03 ± 150.28 um. OCT-A detected different FAZ patterns; horizontally oval configuration in 32 eyes (39%), rounded configuration in 24 eyes (29.3%), pentagon configuration in 14 eyes (17.1%), and vertically oval and nonspecific configuration in 6 eyes each (7.3%). Conclusion. OCT-A could efficiently provide both quantitative and qualitative assessment of normal FAZ; such characterizations were difficult by standard FAZ assessment procedures like FFA.

Three cases of supravaginal excision of the uterus and similar cases used by electrolysis

In a 48-year-old woman, the author removed the uterine fibroma, which had existed for 6 years, with a supravaginal hysterectomy. Tumor weight was 20 lbs; its dimensions: anteroposterior circumference = 231/2 inches, transverse = 223/4 in., diameter from leg to apex = 13 in., transverse diameter = 12, and vertical diameter 91/2 in. The microscope showed the predominance of fibrous tissue; numerous lymphatic spaces were filled with fibrin.

Current approaches to the diagnosis of early oligohydramnios

Objective. To compare the methods of oligohydramnios (OHA) diagnosis using 2D- and 3D-ultrasound and to determine clinical significance of OHA in women with intrauterine infection. Patients and methods. We evaluated the amount of amniotic fluid in 130 pregnant women (at weeks 13–21) aged between 17 and 45 years by measuring the largest vertical pocket and calculating the volume of the largest pocket. Seventy patients were found to have reduced amount of amniotic fluid (Group 1). Sixty women comprised the control group (Group 2). Results. The method for measuring the largest vertical diameter of a fluid pocket demonstrated the following performance characteristics: 84% sensitivity, 94% specificity, 87.9% accuracy, and 0.5 AUC. The performance of measurement of the largest pocket volume was as follows: 92.5% sensitivity, 97.3% specificity, 96.1% accuracy, and 0.8 AUC. Perinatal losses were observed only in Group 1 (n = 2; 28.6%). Women in Group 1 were more likely to have fetal hypotrophy than women in Group 2 (54 (77.1%) vs 5 (8.3%)). Hypoxic-ischemic brain injury and intrauterine infections were also more common among patients with OH than in controls (65 (92.8%) vs 4 (6.6%) and 59 (84.3%) vs 7 (11.6%), respectively) (p < 0.001). Conclusion. Early OH is a marker of severe obstetric and perinatal complications in patients with signs of intrauterine infections. Measurement of the largest pocket volume demonstrated better performance characteristics for the detection of early OH than calculation of the largest vertical diameter of a fluid pocket. Key words: intrauterine infection, oligohydramnios, amniotic fluid, three-dimensional ultrasound

Sex Differences in Morphometry of North Indian Acetabula—Forensic and Orthopedic Consideration

Background Acetabulum is a cup-shaped cavity of the hipbone. It constitutes the acetabular part of the hip joint. Its shape and position related to the head of the femur are crucial for the biomechanics of this joint. The knowledge of various acetabular dimensions is essential to diagnose various diseases of hip joint, to monitor patient recovery, to determine stability of the hip joint, to assess acetabular dysplasia, and also to create patient-specific acetabular implants in case of hip arthroplasty. Various parameters of acetabulum differ with respect to age, sex, race, and region. Thus, a region-specific knowledge of the acetabular dimensions will be helpful for surgical reconstruction and sex determination. Materials and Methods The current study was conducted on 100 adult os coxae (male:female = 80:20, right:left = 50:50). The various acetabular dimensions measured were (1) breadth of acetabulum, (2) vertical diameter of acetabulum, (3) maximum depth of acetabulum, (4) linear length of acetabular notch, (5) length of acetabular rim, and (6) total length of acetabular rim with notch. The values were statistically evaluated to find out the sex and side-related differences. Results All the parameters measured were larger in male bones as compared with female bones. Nevertheless, the difference in values was significant only for breadth of acetabulum, vertical diameter of acetabulum, length of acetabular rim, and total length of acetabular rim with notch. Also, the values were more on left side although results were insignificant. Conclusions The results of the present study will provide reference acetabular values for North India region.