Beyond Bone Mineral Density: The Impact of Childhood Cancer and Its Treatment on Bone Structure and Strength
Bibliographic record
Abstract
The spectrum of bone morbidity in childhood cancer survivors (CCS) is broad and extends beyond "low bone mineral density" to structural damage including fracture-induced vertebral deformity, and joint collapse due to osteonecrosis or slipped capital femoral epiphysis. In addition, short stature, scoliosis, leg length discrepancy, and vertebral deformity can arise from critical interference with growth plate activity. In some cases, insufficient residual growth potential or irreversible growth plate damage can lead to permanent structural deformity, leaving the patient with chronic functional limitations. In this chapter, we describe the clinical manifestations, natural history, and risk factors for cancer-related bone morbidity, approaches to monitoring and diagnosis, and the (paucity of) data available on prevention and treatment measures. In so doing, we unveil important biological principles about the potential for the pediatric skeleton to recover from bone morbidity, obviating the need for treatment, versus permanent structural damage that can negatively impact quality of life over the long-term. These observations, in turn, illuminate the unmet needs that drive future research to improve musculoskeletal strength and mobility in this setting.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.002 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.002 |
| Insufficient payload (model declined to judge) | 0.003 | 0.001 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".