permanent facial paralysis is a catastrophic event for involved patients. in long lasting paralysis with severe facial muscles atrophy, masseter muscle transfer is a very good choice. but its greatest problem is postoperative elongation of flap and gradual diminishing of early results and loss of symmetry. this article advocate a new modification for resolving this problem with concomitant elev...

Objectives: To investigate the early influence of periosteum removal on osteocytes in mouse calvaria. Material and methods: Fifteen C57BL/6 male mice were used in this study. Under anesthesia, a 2X3mm rectangular shape periosteum, 2mm behind the coronal suture and 1mm beside the sagittal suture, was surgically removed from the left side of calvaria whereas the right side was intact as control. ...

Bone augmentation via tissue engineering has generated significant interest. We hypothesized that periosteum-derived cells could be used in place of bone marrow stromal cells (which are widely used) in bone engineering, but the differences in osteogenic potential between these 2 cell types are unclear. Here, we compared the osteogenic potential of these cells, and investigated the optimal osteo...

Four different experiments were performed to study the healing of a large, non-vascularised, diaphyseal, bone segment in adult cats. In the first experiment, a 4 cm segment of tibia with its periosteum was excised and replaced in its bed. The other experiments were similar, except that in the second, the periosteum of the segment was removed, in the third its medullary canal was blocked with a ...

^ This little book is one of extraordinary interest. In fact, may be described as almost sensational in its iconoclastic velty. its distinguished author proves by a series of simple Periments that the commonly accepted teaching about the ? ?wth and vitality of bone depending upon the periosteum quite fallacious. tt is shown how when a sub-periosteal resection of bone is ?e> no new bone is forme...

The clinical use of a temporal periosteal bone flap for the reconstruction of a malar bone in a patient with the Treacher Collins syndrome is presented. The temporal muscle functions as an axial carrier of the periosteum that induces osteogenesis in young children, whereas the bone segments may serve as a nucleus for further bone formation from the periosteum. Correction of the eyelid coloboma ...

Scalp The scalp is the cover of the skull and consists of several layers including the external skin and hair, subcutaneous tissue, the galea or epicranial aponeurosis, and the periosteum. The galea provides attachment to the occipitalis and frontalis muscles. Over the squamous portion of the temporal bone, the temporalis muscle is inserted between the periosteum and the subcutaneous tissue. Th...

The treatment of bone defects is challenging and controversial. As a new technology, periosteal distraction osteogenesis (PDO) uses the osteogenicity of periosteum, which creates an artificial space between the bone surface and periosteum to generate new bone by gradually expanding the periosteum with no need for corticotomy. Using the newly formed bone of PDO to treat bone defects is effective...