Related Experiment Video
Updated: May 28, 2026

Scanning Skeletal Remains for Bone Mineral Density in Forensic Contexts
Published on: January 29, 2018
Linear and skull growth in extremely low birth weight babies with rickets of prematurity
Monika Sharma1, Inderpreet Sohi
1Department of Pediatrics, Christian Medical College, Brown Road, Ludhiana, Punjab 141008, India. drsmonika@gmail.com
Insights
Rickets of prematurity impacts bone mineral accretion in preterm infants. However, this study found no significant difference in head size or length between preterm infants with and without rickets up to 12 months of age.
Area of Science:
- Neonatalogy
- Pediatric Endocrinology
- Developmental Pediatrics
Background:
- Preterm birth is associated with impaired bone mineral accretion and rickets of prematurity.
- Rickets of prematurity can lead to long-term skeletal growth morbidities.
- The impact of rickets of prematurity on skull growth is less understood compared to linear growth.
Purpose of the Study:
- To compare the effect of rickets of prematurity on linear and skull growth in the first year of life.
- To evaluate anthropometric differences between extremely low birth weight (ELBW) infants with and without rickets of prematurity.
Main Methods:
- Retrospective observational study analyzing 1-year follow-up records of ELBW infants.
- Comparison of anthropometric data (head size and length) between ELBW infants with confirmed rickets of prematurity (study group) and those without (control group).
- Statistical analysis of anthropometric values at various ages within the first year of life.
Main Results:
- No significant difference in linear growth (length) was observed between the study and control groups until 12 months of age.
- No significant difference in skull growth (head size) was observed between the study and control groups until 12 months of age.
- Both length and head size were comparable in ELBW infants with and without rickets of prematurity at 12 months.
Conclusions:
- Rickets of prematurity does not appear to significantly affect linear or skull growth in extremely low birth weight infants within the first year of life.
- Further research may be warranted to assess longer-term growth outcomes and potential subtle impacts of rickets of prematurity.
Abstract:
Preterm birth results in poor accretion of bone minerals and development of rickets of prematurity. Poor skeletal growth is one of the long term morbidities of this condition, which is said to have a lesser effect on the skull growth. The present study was a retrospective observational study to compare the effect of rickets of prematurity on the linear and skull growth in the first year of life. In this retrospective analysis, 1 y follow-up records of extremely low birth weight (ELBW) babies born in five consecutive years and their anthropometric data were evaluated. ELBW babies with confirmed rickets of prematurity were taken as the study group and those without were taken as the control group and anthropometric values (head size and length) at various ages in the first year of life were compared using relevant statistical software. Both the lengths and head sizes of the babies in the two groups were found to be comparable until the age of 12 mo.
Related Concept Videos
Sutures of the Skull
Sutures are immobile joints between adjacent bones of the skull. The narrow gap between the bones is filled with dense, fibrous connective tissue that unites the bones. The long sutures located between the skull bones are not straight but instead follow irregular, tightly twisting paths. These twisting lines tightly...
Bone Formation by Intramembranous Ossification
The process begins when mesenchymal cells in the embryonic skeleton gather together and differentiate into osteogenic cells, which then develop into...
Changes in the Appendicular Skeleton with Age
Initially, the limb buds consist of a core of mesenchyme covered by a layer of ectoderm. The ectoderm at the end of the limb bud thickens to form a narrow crest called the apical ectodermal ridge. This ridge stimulates the underlying...
Growth of Cartilage and Bone Tissue
Nature and Nurture
Bone Disorders
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...

