A 28-year-old male victim of a mass disaster is identified through dental records. However, the investigating officer requests confirmation of age at death using skeletal remains. Which investigation is most appropriate to determine the exact age from bone morphology?

Explanation

## Age Determination from Skeletal Remains ### Epiphyseal Fusion Analysis — Gold Standard for Adolescents and Young Adults **Key Point:** Epiphyseal fusion is the most reliable and widely used method for age determination in individuals aged 12–25 years. Different epiphyses fuse at predictable ages, allowing precise age estimation within ±1–2 years. **High-Yield:** The sequence of epiphyseal fusion follows a well-documented pattern: - **Distal femur:** 18–20 years - **Proximal tibia:** 18–20 years - **Distal tibia:** 15–17 years - **Proximal humerus:** 18–20 years - **Distal radius:** 17–19 years - **Iliac crest:** 23–25 years (last to fuse) ### Why This Method Is Superior for This Case 1. **Non-destructive:** Radiographic examination preserves skeletal integrity for further forensic analysis. 2. **Precise:** Provides age estimation within 1–3 years in the 12–25 age group. 3. **Practical:** Requires only standard X-rays; no specialized equipment needed in disaster settings. 4. **Validated:** Extensively documented in forensic anthropology literature with population-specific standards. ### Diaphyseal Length Measurement **Clinical Pearl:** Long bone length (especially femur) correlates with age in children and adolescents. Combined with epiphyseal fusion status, it refines age estimation further. ### Complementary Methods in Older Individuals For individuals >25 years, additional methods include: - Degenerative changes (arthritis, vertebral osteophytes) - Bone density and cortical thickness - Suture closure (unreliable; high inter-observer variation) **Mnemonic: FUSED** — **F**emur, **U**lna, **S**ternum, **E**piphyses, **D**iaphysis (structures assessed in skeletal age determination) [cite:Reddy Forensic Medicine 34e Ch 3]