Publicação
OSTEOPOROSE NA IDADE MÉDIA Estudo da massa cortical óssea através do 2º metacárpico das amostras osteológicas de S. João de Almeida, Convento se S. Francisco (Santarém) e Cacela-a-Velha
| Resumo: | Osteoporosis can be defined as a metabolic disorder of multifactorial etiology, characterized by a decrease in bone mass and consequently a greater susceptibility to fracture. Given its increasing prevalence in contemporary populations, it has proved to be a serious public health problem. Paleopathological studies are a valuable aid in anticipating such problems by helping to understand past bone loss patterns and the potential to predict the susceptibility of populations to disease. The purpose of this work was essentially to understand the patterns of bone loss in a sample of individuals belonging to three distinct portuguese medieval populations, dating from the 12th century to the beginning of modernity, coming from the church of São João de Almedina (N = 11; ± 12.6%), Convento de São Francisco (in Santarém) (N = 48; ± 55.2%) and the Christian necropolis of Cacela-a-Velha (N = 28; ± 32.2%). The radiogrammetry technique was applied to the second metacarpal (II MTC) for subsequent calculation of cortical index (ICM) and evaluation of bone mass loss according to gender and age group. The analysis and recording of fragility fractures was performed and a set of femoral morphometric measurements was carried out to evaluate the role of its morphology in the occurrence of hip fractures. Due to the small number of individuals in the samples the three archaeological sites were statistically analyzed together. The results obtained were inconclusive regarding the patterns and rates of bone loss associated with aging. The parameters evaluated varied inconsistently across age groups, probably due to the small number of individuals under study. There were no significant differences in the prevalence of vertebral fractures between sexes and their increase with age. Only vertebral compression fractures were observed, with no record of hip, proximal humerus or forearm fractures. A fracturing event has been reported in a young woman, which does not necessarily have to be justified as a direct consequence of bone loss at an early age, possibly having other etiologies. It is essential to pursue this type of studies with more significant sampling and even in other chronological contexts. |
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| Autores principais: | Ferreira, Sónia Isabel Rodrigues |
| Assunto: | radiogrametria osso cortical perda óssea fraturas paleopatologia radiogrammetry cortical bone bone loss fractures paleopathology |
| Ano: | 2020 |
| País: | Portugal |
| Tipo de documento: | dissertação de mestrado |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade de Coimbra |
| Idioma: | português |
| Origem: | Estudo Geral - Universidade de Coimbra |
| Resumo: | Osteoporosis can be defined as a metabolic disorder of multifactorial etiology, characterized by a decrease in bone mass and consequently a greater susceptibility to fracture. Given its increasing prevalence in contemporary populations, it has proved to be a serious public health problem. Paleopathological studies are a valuable aid in anticipating such problems by helping to understand past bone loss patterns and the potential to predict the susceptibility of populations to disease. The purpose of this work was essentially to understand the patterns of bone loss in a sample of individuals belonging to three distinct portuguese medieval populations, dating from the 12th century to the beginning of modernity, coming from the church of São João de Almedina (N = 11; ± 12.6%), Convento de São Francisco (in Santarém) (N = 48; ± 55.2%) and the Christian necropolis of Cacela-a-Velha (N = 28; ± 32.2%). The radiogrammetry technique was applied to the second metacarpal (II MTC) for subsequent calculation of cortical index (ICM) and evaluation of bone mass loss according to gender and age group. The analysis and recording of fragility fractures was performed and a set of femoral morphometric measurements was carried out to evaluate the role of its morphology in the occurrence of hip fractures. Due to the small number of individuals in the samples the three archaeological sites were statistically analyzed together. The results obtained were inconclusive regarding the patterns and rates of bone loss associated with aging. The parameters evaluated varied inconsistently across age groups, probably due to the small number of individuals under study. There were no significant differences in the prevalence of vertebral fractures between sexes and their increase with age. Only vertebral compression fractures were observed, with no record of hip, proximal humerus or forearm fractures. A fracturing event has been reported in a young woman, which does not necessarily have to be justified as a direct consequence of bone loss at an early age, possibly having other etiologies. It is essential to pursue this type of studies with more significant sampling and even in other chronological contexts. |
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