To calculate the platymeric and platybrachial indexes, I need to observe the antero-posterior and medio-lateral diameter of the femur and the humerus. How can I determine the mid-diaphysis in bones without epiphysis?
Hi Jimmy, it is the same way that for complete fused bone (if the diaphysis is complete). The middle remain at the middle.
Thank you Steve for your answer. Actually I'm not trying to estimate the ancestry. I'm working on the distribution and association os porous lesions (particularly cribra femora and cribra humerale). I've read an article about individuals
Hi Jimmy, it is the same way that for complete fused bone (if the diaphysis is complete). The middle remain at the middle.
Hi Jimmy, I would also use the proximal and distal diaphyseal expansions. Even if the trochanter or head are not yet fused, you can still determine directionality. I refer you to Chapter 4 in Buikstra and Ubelaker's "Standards for Data Collection from Human Skeletal Remains" (1994) that specifically deals with immature remains. Good luck!
Thank you all for your answers. Initially i would take the mid-shaft measurement of the description of Tim White (Human Osteology), but it seems more reasonable to follow the Buikstra & Ubelaker (1994) even if they don't develop the methodology for unfused long bones.
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