Quantitative comparison of volume maintenance between inlay and onlay bone grafts in the craniofacial skeleton.

Background: Nonvascularized autologous bone grafts are the criterion standard in craniofacial reconstruction for bony defects involving the craniofacial skeleton. The authors have previously demonstrated that graft microarchitecture is the major determinant of volume maintenance for both inlay and onlay bone grafts following transplantation. This study performs a head-to-head quantitative analysis of volume maintenance between inlay and onlay bone grafts in the craniofacial skeleton using a rabbit model to comparatively determine their resorptive kinetics over time.

The use of a bovine collagen construct for reconstruction of full-thickness scalp defects in the elderly patient with cutaneous malignancy.

Full-thickness defects of the scalp following cancer resection are reconstructive challenges when bone is exposed. Local, regional, and/or free tissue transfer have all been described for reconstruction when the pericranium is exposed. We examined the surgical outcomes from 23 patients who underwent placement of bovine collagen constructs.

Volume maintenance of inlay bone grafts in the craniofacial skeleton.

Although the clinical use of inlay bone grafts is widespread in craniofacial surgery, the dynamics of inlay bone grafting to the craniofacial skeleton have never been well characterized. Previous work demonstrated that volume maintenance of bone grafts in the onlay position is a consequence of their microarchitectural features, rather than their embryological origins. The purpose of this study was to investigate whether the properties determining the volume maintenance of bone grafts in the onlay position in the craniofacial skeleton could be extended to bone grafts in the inlay position.

Unique rodent model of distraction osteogenesis of the mandible.

Despite the increasing use of distraction osteogenesis (DO) of the mandible, the molecular mechanisms regulating new bone formation during DO remain poorly understood. The purposes of this study were (1) to establish a unique rodent model of DO capable of outlining parameters for new bone formation at the distraction site and (2) to determine a critical-size defect to differentiate osteogenesis resulting from distraction from conventional fracture healing at the osteotomy site. Adult Sprague-Dawley rats were fitted successfully with this newly developed distraction device.

Intrafocal pinning of distal radius fractures: a simplified approach.

Distal radius fractures are not often treated by plastic surgeons. At the authors' institution, plastic surgery manages half of all traumas below the elbow, including distal radius and forearm fractures. This opportunity gives the residents a unique perspective for comprehensive training in treating upper extremity injuries.