DSP2 for sex determination of miscegenated contemporary hip bones.

The bones of the human pelvis are used in sexual diagnosis generating a high level of accuracy for this type of identification. Morphological and/or morphometric methods are used in the identification of sex. Sexual dimorphism may be affected by ethnic differences in the population. One of the methods for determining sex using hip bone is the 'Diagnose Sexuelle Probabiliste (DSP)' or Probabilistic Sexual Diagnosis (DSP) method. The method presents a new version (Probabilistic Sexual Diagnosis v.2-DSP2) more advisable to be used because it has a more up-to-date database. The objective of this study is to investigate the applicability of the DSP2 method in a population in the Northeast region of Brazil. We used 128 hip bones, 50 female and 78 males, aged between 17 and 101 years, belonging to the Laboratory of Human Identification and Forensic Osteology of the University Federal Government of Pernambuco. The research was conducted between 2019 and 2020 and approved by the Research Ethics Committee of the Federal University of Pernambuco no. 43228015.0.0000.5208. The probability equal to or greater than 0.95 was used as the limit for the determination of sex, and the results were compared with the actual sex of each bone. In the Brazilian collection study, it was observed that the percentage of sex estimation provided by the DSP2 tool using all reference samples was 71.09%, and accuracy was 64.06%. In the analysis of the gender estimate, 82.0% and 78% were obtained for females and males, respectively. Regarding accuracy, it was 64.10% and 55.13% for females and males, respectively. In the contemporary osteological collection of the Northeast region of Brazil, which presents immigrant peoples, we obtained a high index of assertiveness in the DSP2 method. The study concluded that the DSP2 method is important for determining the sex of human skeletons in a miscegenated population.

Injerto de cresta iliaca con rehabilitación fija implantosoportada

Las condiciones locales anatómicas y los factores generales relacionados con el paciente determinan la elección de la prótesis. En general se requieren más implantes para soportar una prótesis total fija. Además, en muchos casos la indicación de una prótesis fija está limitada por la estructura inadecuada de hueso, a menos que se utilicen procedimientos quirúrgicos adicionales tales como los aumentos óseos con procedimiento de injerto. En este caso clínico que presenta una atrofia avanzada de la maxila, se realiza un injerto de cresta iliaca, con el que se obtiene un reborde adecuado para poder colocar implantes dentales y confeccionar una prótesis fija implanto-soportada. Se da un seguimiento con dos años de control postoperatorio

The selection of the denture for a patient are determined from the local conditions anatomical/morphological and general factors related to the patient. In general more implants are requiered for the support of a fixed complete denture. Besides in many cases this fixed denture is limited by an inadequate bone structure, unless aditional surgical procedures such as bone graft for bone augmentation are performed. In the present clinical case with a severe upper jaw atrophy, a bone graft from the hip was done in order to obtain an adequate bone to receive the dental implants and place a fixed implant supported bridge. A follow up of the patient is of two years now.

The morphometric analysis of crista phallica in identification of sexes / El análisis morfométrico de cresta fálica en la identificación de los sexos

Crista phallica (CP) is used to determine sex in anthropology and criminal forensic medicine; however, it does not exist in anatomic and radiological terminology. The purpose of this retrospective study is morphometric analysis of the CP. We studied radiographs displaying several different clinical indications from patients whose bone maturation were fully complete. The crista phallica located on both sides of the medial portion of ischiopubic ramus (IPR) were localized and their peak points were determined. The distance from these peak points to the inner cortex of IPRs were measured, as well as the angles between the tangents passing the peak points from both sides. We determined the distance of the IPR (DIPR) for males and females sequentially as 21.3 +/- 3.5 mm, and 17 +/-2.8 mm, angle of CP (ACP) as 149.1 +/-15.7, and 163.5 +/-13.4. It was identified that ACP for females is less than ACP for males (p<0.001). ACP and DIPR alone are not sufficient criteria to determine sex. Therefore, the results of our findings show that it would be more useful to study other specifications and their metric analysis in order to determine sex.

La cresta fálica (Crista phallica, CP) se utiliza para determinación de sexo en antropología y la medicina forense, sin embargo, no existe en la terminología anatómica y radiológica. El objetivo de este estudio retrospectivo es el análisis morfométrico de la CP. Estudiamos radiografías que muestran varias indicaciones clínicas diferentes de pacientes cuya maduración ósea fue totalmente completa. La cresta fálica se situó a ambos lados de la porción medial de la rama isquio-pubiana (RIP), donde su localización y sus puntos más altos fueron determinados. La distancia desde estos puntos más altos a la corteza interna de la RIP fueron medidos, así como los ángulos entre las tangentes que pasaron por los puntos más altos de ambos lados. Se determinó la distancia de la RIP (DRIP) para hombres y mujeres de forma secuencial como 21,3 +/- 3,5 mm, y 17 +/- 2,8 mm, ángulo de la CP (ACP) como 149,1 +/- 15,7 y 163,5 +/- 13,4. Se identificó que los ACP para mujeres fueron menores que las ACP para los hombres (p <0,001). ACP y DRIP por sí solas no son criterios suficientes para determinar el sexo. Por lo tanto, los resultados de nuestros hallazgos muestran que sería más útil para estudiar otras especificaciones y sus análisis métricos a fin de determinar el sexo.