Article

First rib metamorphosis: Its possible utility for human age-at-death estimation

Department of Anatomy, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106, USA.
American Journal of Physical Anthropology (Impact Factor: 2.51). 11/1999; 110(3):303-23. DOI: 10.1002/(SICI)1096-8644(199911)110:3<303::AID-AJPA4>3.0.CO;2-O
Source: PubMed

ABSTRACT Human first ribs demonstrate predictable, sequential changes in shape, size, and texture with increasing age, and thus, can be used as an indicator of age at death. Metamorphosis of the first rib's head, tubercle, and costal face was documented in a cross-sectional sample of preadult and adult first ribs of known age at death from the Hamann-Todd skeletal collection (Cleveland Museum of Natural History, Cleveland, Ohio). Blind tests of the usefulness of the first rib as an age indicator were conducted, including tabulation of intraobserver and interobserver inaccuracies and biases. First rib age estimates show inaccuracies and biases by decade comparable to those generated by other aging techniques. Indeed, the first rib method is useful as an isolated age indicator. When used in conjunction with other age indicators, the first rib improves the quality of summary age assessments.

1 Follower
 · 
153 Views
  • [Show abstract] [Hide abstract]
    ABSTRACT: The ossification patterns of medial clavicle and the first costal cartilage represent interesting features of the same anatomical region which are accessible for conventional radiographic and computed tomography (CT) examinations in the same field of view. This study encompassed Serbian population and was carried out to examine whether CT analyses of medial clavicle and the first costal cartilage could be successfully applied, either individually or conjointly, in the age assessment. The study was based on CT examinations of thoracic region of 154 patients, aged between 15 and 35 years. Besides radiodensity and stages of epiphyseal cartilage ossification of medial clavicle, the study detected other features that expressed significant correlation with age, such as calculated anterior to posterior cortical thickness ratio, medullar canal diameter, and clavicular shaft diameter. However, although calculated ossified and calcified linear projections' (OCP) stages correlated to age, the distinction between stages was not satisfying. The interaction between the ossification status of medial clavicle and OCP was not significantly influenced by age. The results of our study outlined interesting new age predictors with mutual relationship: acquired radio density of the sternal epiphyseal-metaphyseal region and radio density of the first costal cartilage. Intersex variability was observed in several age-related features: calculated anterior to posterior cortical thickness ratio, diameter of medullar canal, and diameter of the clavicular shaft. Altogether, our study identified several radiological features of the first costal cartilage and medial clavicle that correlated with age and which could be applied as additional guidance for age estimation in each specific case.
    Deutsche Zeitschrift für die Gesamte Gerichtliche Medizin 06/2014; 128(5). DOI:10.1007/s00414-014-1026-9 · 2.60 Impact Factor
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: Osteological reference collections play a key role in bioanthropological research; they allow the development and testing of methods for sexing and ageing individuals using various bone and dental attributes. This paper presents the first stage results of the ongoing Chacarita Research Project, which aims to generate and study a reference collection of adult skeletons representative of the contemporary population of Buenos Aires city. The Chacarita Collection consists of unclaimed human remains of individuals of known nationality, sex, age, cause and date of death from the Chacarita Public Cemetery. Unlike other similar endeavours, this sample has been completely exhumed using archaeological techniques. So far, a total of 146 adult skeletons have been recovered (60 females - 41.1% and 86 males - 58.90%), the majority of which have ages-at-death in the range of 71-90 years. They were born primarily in Argentina (n=133; 91.1%), although other nationalities are also represented. Dates of death range between 1987 and 2000. In the short term, the osteological study of this collection will allow assessment of the performance of classical methods of sex determination and age-at-death estimation in a local setting. A special priority will be given to the study of osteological changes in individuals over 50 years. As the sample is being retrieved by exhumation, the impact of taphonomic agents on the most diagnostic bone structures is also being assessed. In the long term, this osteological collection will be available to generate new population-specific techniques and to develop comparative biological studies.
    Homo: internationale Zeitschrift fur die vergleichende Forschung am Menschen 10/2012; 63(6). DOI:10.1016/j.jchb.2012.06.003 · 0.96 Impact Factor
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: This study reports the results of a de novo classification and characterization of macroscopically perceiv-able bone alterations relating to the pathologic significance of rib alterations as noted in defleshed bones. We distinguish between nonspecific two-dimensional color alterations and three-dimensional surface modification which appears to have diagnostic significance. Color alterations were patchy in nature with brown being most prominent, followed by creamy, white and orange, but appear taphonomic in nature. Categorization of three dimensional alterations, e.g., periosteal reaction, bumps and holes, identifies which is specific for diagnosis of tuberculosis. Rib periosteal reaction is significantly more common among individuals with tuberculosis than those with non-tubercular pulmonary disease (Chi square = 33.75, p < 0.0001), cancer (Chi square = 5.82, p < 0.02), cardiac disease (Chi square = 7.404, p < 0.008), and others (Chi square = 63.19, p < 0.0001). This study explains past errors in recognition of the signifi-cance of rib alterations.

Full-text

Download
5 Downloads
Available from
Mar 1, 2015