Related Experiment Video
Updated: Sep 2, 2025
Triggering Reactive Gliosis In Vivo by a Forebrain Stab Injury
Published on: June 29, 2015
Spontaneous Reossification Following Craniectomy in a Pediatric Patient
Luke Soliman1, Nikhil Sobti1, Vinay Rao1
1Division of Plastic and Reconstructive Surgery, The Warren Alpert Medical School of Brown University, Providence, RI, USA.
Insights
This case report details spontaneous bone regrowth in an infant’s cranial defect, observed over 18 months. This finding offers new insights into pediatric bone healing and may reduce the need for cranioplasty.
Area of Science:
- Neuroscience
- Regenerative Medicine
- Pediatric Surgery
Background:
- Spontaneous reossification of cranial defects is rare, with limited case reports.
- A 6-month-old infant with an epidural hematoma developed a cranial defect after decompressive craniotomy and subsequent bone flap removal due to infection.
- This case represents the youngest reported instance of spontaneous cranial defect resolution.
Approach:
- Serial clinical and radiographic follow-up over 18 months documented the resolution of the cranial defect.
- Literature review of spontaneous cranial defect healing in pediatric populations.
- Analysis of proposed mechanisms for calvarial bone regeneration.
Key Points:
- The infant's cranial defect showed near-complete spontaneous resolution within 18 months.
- This phenomenon, previously reported in older children and adults, is now documented in an infant under one year.
- The case highlights the potential for non-surgical healing of significant cranial defects in very young patients.
Conclusions:
- Spontaneous reossification of cranial defects can occur even in infants, potentially obviating the need for cranioplasty.
- While dura mater and pericranium contact are known factors, stem cells from suture mesenchyme may also play a crucial role in calvarial bone repair.
- Further research into the mechanisms of spontaneous bone regeneration is warranted for pediatric neurosurgery applications.
Abstract:
Spontaneous reossification following a cranial defect is described by only a few case reports. A 6-month-old male with epidural hematoma underwent decompressive craniotomy, subsequently complicated by scalp abscess requiring removal of the bone flap. On serial outpatient follow-up, the patient demonstrated near-complete resolution of cranial defect over the course of 18 months, thus deferring the need for future cranioplasty. Prior articles have identified this occurrence in children and young adults; however, the present case is the first to report of this phenomenon in an infant less than 1 year of age. A brief review of the literature is provided with the proposed physiologic underpinning for the spontaneous reossification observed. While prior studies propose that recranialization is mediated by contact with the dura mater and pericranium, new investigations suggest that calvarial bone repair is also mediated by stem cells from the suture mesenchyme.
More Related Videos
09:29Controlled Cortical Impact Model of Mouse Brain Injury with Therapeutic Transplantation of Human Induced Pluripotent Stem Cell-Derived Neural Cells
Published on: July 10, 2019
10:30Sequential In vivo Imaging of Osteogenic Stem/Progenitor Cells During Fracture Repair
Published on: May 23, 2014
Related Concept Videos
01:22Sutures 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...
01:29Bone 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 ...
01:27Fractures: Bone Repair
Minor fractures with no bone displacement are treated by immobilizing the fractured bone using a cast or splint. However, in the case of fractures with displaced bones, the broken bones are repositioned before immobilization to ensure successful healing without deformation and loss of function. The realignment of fractured bone ends is performed through a process called reduction. If the...