A comparative study on meniscectomy and autogenous graft replacement of the Rhesus monkey temporomandibular joint articular disc - Part I

The aims of this study were to compare the effects of meniscectomy and autogenous graft replacement on the functions and histology of the Rhesus monkey temporomandibular joint. Eight matured Rhesus monkeys (Macaca mulatta) were used for the first part of the study to compare firstly the results of meniscectomy without replacement and secondly, replacement of the disc with a fascia lata graft. The results showed that unilateral meniscectomy in Rhesus monkeys did not result in significant morbidity. Degenerative changes (osteoarthritis) were observed in all the experimental joints with and without replacement of the articular discs. Fascia lata did not survive after grafting and did not reliably induce re-formation of an articular disc-like structure

Variations in Clinical Presentations of the Simple Bone Cyst: Report of Cases

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Osteomyelitis with proliferative periostitis: an unusual case

Chronic osteomyelitis with subperiosteal new bone formation results from periosteal reaction to chronic inflammatory/infectious stimulation. In the maxillofacial region, it has traditionally been termed Garrè's osteomyelitis with proliferative periostitis and more recently periostitis ossificans. The term Garrè's osteomyelitis has been regarded as a misnomer by many authors in the recent literature. The term chronic osteomyelitis with proliferative periostitis, although cumbersome, is considered to be the most accurate description of the pathology. It usually affects the mandible of young patients secondary to dental infection. Management involves removal of the source of infection and antibiotic treatment. We present an unusual case of chronic osteomyelitis with proliferative periostitis affecting the mandible of a 12-year-old patient. The source of infection was related to the developing lower left third molar, which had apparently no communication with the oral cavity. © 2006 Mosby, Inc. All rights reserved.link_to_subscribed_fulltex

Management of massive osteolysis of the mandible: a case report

The management of a previously reported case of massive osteolysis of the mandible with intravenous bisphosphonate, vascularized free bone graft, and dental implants is reported. Restoration of adequate cosmetics and masticatory function was achieved. Despite the use of bisphosphonates, there were no complications with osseointegration. The reconstruction remained stable and functional 6 years afterward. © 2010 Mosby, Inc. All rights reserved.link_to_subscribed_fulltex

Blood loss and transfusion requirements in orthognathic surgery

Purpose: This study quantified the blood loss and transfusion requirements in orthognathic surgery. Patients and Methods: Three hundred sixty consecutive healthy orthognathic surgery patients were included in this retrospective study. The female:male ratio was 1.8:1, and the age range was 8 to 49 years (mean, 24). Estimated blood volume (EBV), estimated blood loss (EBL), and transfused blood were calculated. Results: EBL ranged from 50 to 5,000 mL (mean, 600) representing up to 73% of EBV (mean, 16%). In total, 24% (84 patients) were transfused, 8.7% (6 patients) after single-jaw surgery and lilac bone harvest and 26.7% (78 patients) after bimaxillary osteotomies. Forty-seven patients received 1 unit of transfused blood, 25 patients had 2 units, and 12 patients had more than 2 units. Most transfused patients lost 11% to 40% of EBV. Conclusions: Transfusion is not necessary for single-jaw surgery unless a bicoronal flap or iliac bone harvest are required. Although only 27% of bimaxillary osteotomy patients required transfusion of 1 to 2 units, this group was not predictable based on the type of procedure involved, and a further subgroup (4% of the 291 patients) required a larger transfusion.link_to_subscribed_fulltex

Blood loss and transfusion requirements in orthognathic surgery

Purpose: This study quantified the blood loss and transfusion requirements in orthognathic surgery. Patients and Methods: Three hundred sixty consecutive healthy orthognathic surgery patients were included in this retrospective study. The female:male ratio was 1.8:1, and the age range was 8 to 49 years (mean, 24). Estimated blood volume (EBV), estimated blood loss (EBL), and transfused blood were calculated. Results: EBL ranged from 50 to 5,000 mL (mean, 600) representing up to 73% of EBV (mean, 16%). In total, 24% (84 patients) were transfused, 8.7% (6 patients) after single-jaw surgery and lilac bone harvest and 26.7% (78 patients) after bimaxillary osteotomies. Forty-seven patients received 1 unit of transfused blood, 25 patients had 2 units, and 12 patients had more than 2 units. Most transfused patients lost 11% to 40% of EBV. Conclusions: Transfusion is not necessary for single-jaw surgery unless a bicoronal flap or iliac bone harvest are required. Although only 27% of bimaxillary osteotomy patients required transfusion of 1 to 2 units, this group was not predictable based on the type of procedure involved, and a further subgroup (4% of the 291 patients) required a larger transfusion.link_to_subscribed_fulltex