Fracture and fall history

これは何か

A history of low-trauma fracture, repeated falls, height loss, or vertebral compression changes is an outcome signal, not just a background detail.^[1,2]

なぜ重要か

Bone strength is judged by whether bone breaks under ordinary loads. A clean-looking number can miss fall risk, vertebral fracture, or inherited fragility context.^[1]

異常値が生じる根本原因

• Event core: A fracture records a real-world load failure: the force applied to bone exceeded the bone and body context that could resist it. Fall history records exposure to those loads, so it can explain why a density number alone is not the whole story.^[1,3]
  BMDT-scoreZ-score
• Fracture-context layer: Prior low-trauma fracture, vertebral compression, repeated falls, and pediatric fracture patterns can change how BMD, T-score, or Z-score are read. In pediatric contexts, fracture history and Z-score context belong together because densitometry alone is not enough.^[4,2,5]
  BMDZ-scoreVertebral fracture assessment
• Reading boundary: BioConst can explain why fracture and fall history sit close to bone-density interpretation, but it does not identify the cause of a fracture, quantify personal future risk, or recommend fall-prevention, imaging, or medication steps.^[1,2]

どの判断に影響するか

• A fracture after a low-energy fall can shift the clinical meaning of BMD and T-score.^[1]
• In children and adolescents, fracture history is part of the osteoporosis definition; densitometry alone is not enough.^[2]

解釈上の注意

• Trauma level, age, location, medication exposure, and underlying disease change interpretation.^[2]

関連疾患