Forensic age estimation of the knee and clavicle using post-mortem CT
Year: 2025
Type: article
Study design: Observational Study
Abstract: Age is crucial for constructing a biological profile to match data from missing persons in Disaster Victim Identification (DVI). For adolescents and young adults, methods often rely on bone end closures. Post-mortem computed tomography (PMCT) is a reliable tool for forensic age estimation in DVI cases. This study aimed to develop reference material for estimating the age of deceased adolescents and young adults using PMCT of the knee and clavicle in a Danish population. Results from the knee and clavicle were compared, and decision trees were created for final age estimates based on various bone combinations. The study included 221 individuals (57 females, 164 males) aged 10-25 years who underwent PMCT before medico-legal autopsy. Using the staging method by Schmeling et al. and Kellinghaus et al. ossification in the distal femoral, proximal tibial, proximal fibular, and medial clavicular epiphyses were evaluated. Large age intervals were observed for all bone stages, except for the earliest and latest clavicle stages. The clavicle stage distribution correlated well with chronological age, and reference values were consistent with previous studies. Individuals of younger age exhibited higher knee-bone stages than clavicle stages. Decision trees indicated that age intervals could be narrowed by combining clavicle stages with femur and fibula stages, though caution is required when intervals are too narrow. This study provides reference material for forensic age estimation in adolescents and young adults using PMCT of the knee and clavicle, relevant in DVI cases where limited body parts are available for analysis.
Source: Forensic Imaging
Institutions: University of Copenhagen, Rigshospitalet
Language: English
Subfield: Archeology
Field: Arts and Humanities
Domain: Social Sciences
Open Access status: hybrid
Estimated APC paid: $3,280
OpenAlex ID: W4410871200