Osteogenic Potential of Bone Callus: A Cross-sectional Study on Microscopic Structure and Healing Stages
Abstract
Abstract Introduction: Bone callus formation is a critical phase of post-fracture osseous regeneration. Despite extensive animal-model research, human histological data characterizing the osteogenic and osteoconductive microstructure of bone callus across different age groups and genders remain sparse. This study aimed to evaluate the microscopic structure of bone callus with a focus on osteoblast density and osteoconductive parameters in fracture patients at a tertiary care center. Materials and Methods: This cross-sectional observational pilot study analyzed bone callus samples from 10 of 23 recruited fracture patients (≥18 years) who underwent open reduction and internal fixation at All India Institute of Medical Sciences, Rajkot. Samples were collected intraoperatively, processed, and stained with hematoxylin and eosin. Five osteoconductive variables – osteoblast density, trabecular thickness, trabecular spacing, trabecular number, and bone volume fraction – were quantified using Image analysis software (NIH, USA) and compared across gender and two age groups (15–24 years vs. 25–64 years). An adult carpal bone (lunate) served as a control. Statistical comparison used the unpaired Student’s t-test (Statistical Package for the Social Sciences v16.0). Results: Male callus exhibited higher osteoblast density (426.7 ± 19.0 vs. 402.5 ± 23.1 N/mm2) and bone volume fraction (54.6 ± 3.0% vs. 51.5 ± 2.7%) than female samples, though not statistically significant (P > 0.05). The…
How strong is the evidence?
Evidence Hub reads this as a cross-sectional, done in people. Its evidence level is 4 of 5 (Low · observational). Observational designs can show an association but not prove cause. Reported size: 23 participants or records.
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