A case of spontaneous bone regeneration after mandibulectomy is presented. The patient was young and had a mandibular resection performed for a large fibroma. Only one of the condyles was preserved. Partial preservation of the periosteum may play an important role in rapid bone regeneration. In this case bone regeneration occurred only in mandibular regions where the periosteum could be preserved.

A feedback mechanism between different tissues in a growing bone is thought to determine the bone's morphogenesis. Cartilage growth strains the surrounding tissues, eliciting alterations of its matrix, which in turn, creates anisotropic stresses, guiding directionality of cartilage growth. The purpose of this study was to evaluate this hypothesis by determining whether collagen fiber directions...

Previous reports have demonstrated very rich innervation pattern in the periosteum. Most of the periosteal fibers were found to be sensory in nature. The aim of this study was to identify the primary sensory neurons that innervate the tibial periosteum in the adult rat and to describe the morphometric features of their perikarya. To this end, an axonal fluorescent carbocyanine tracer, DiI, was ...

Introduction: The role of periosteum in the blood supply of bones has been investigated by several investigators [5]. Its osteogenic potential, particularly its important role in fracture repair, is also well recognized [1, 3]. However, the biomechanical role of periosteum in the fracture behavior of bones has not been studied in detail. Although the periosteum is expected to be resistant to te...

The link between mechanics and biology in the generation and the adaptation of bone has been well studied in context of skeletal development and fracture healing. Yet, the prediction of tissue genesis within - and the spatiotemporal healing of - postnatal defects, necessitates a quantitative evaluation of mechano-biological interactions using experimental and clinical parameters. To address thi...

The differentiation of mesenchymal stem cells towards an osteoblastic fate depends on numerous signaling pathways, including activation of bone morphogenetic protein (BMP) signaling components. Commitment to osteogenesis is associated with activation of osteoblast-related signal transduction, whereas inactivation of this signal transduction favors adipogenesis. BMP signaling also has a critical...

Bone morphogenetic proteins (BMPs) participate in multiple stages of the fetal skeletogenic program from promoting cell condensation to regulating chondrogenesis and bone formation through endochondral ossification. Here, we show that these pleiotropic functions are recapitulated when recombinant BMPs are used to augment skeletal tissue repair. In addition to their well-documented ability to st...

Reporting two cases one of centimetres breadth and the other four exposed tibia bone devoid periosteum due to post debridement involving elevator remove infective tissue which was successfully covered by a simple procedure with MatriDerm® split skin graft in single stage. Tibia not drilled sprout granulation from marrow create granulated vascularised bed for second-stage grafting. It avoided lo...

The annual regrowth of deer antlers is a unique case of extensive appendage regeneration in mammals. This review compares basic aspects of antler regeneration with epimorphic regeneration in other vertebrate taxa. The mesenchymal cells that build up the regenerating antler are not derived from dedifferentiated cells in the pedicle stump, but from the proliferation of cells of the pedicle perios...