Turtle (Emys orbicularis L.) embryo thymuses grafted in the somatopleure or onto the quail embryo chorioallantoic membrane developed in these heterotopic sites for 2-12 days. When the thymus was removed from embryos at early stages such that no thymocytes were yet present during normal development, epithelial cells with mitoses were observed in the explants but no turtle thymocytes developed wh...

RESULTS: Of the 10,784 patients who underwent immediate prosthesis-based reconstruction, 5,516 (51%) filled antibiotic prescriptions. These patients were equally likely to develop an infection (OR 1.0 95%CI(0.85–1.18); p=0.98) or require explantation (OR 0.96 95%CI(0.80– 1.15); p=0.64) compared to those who did not. There was no difference in the likelihood of infection or explantation based on...

AIMS To report the histological findings in two AlphaCor artificial corneas explanted following complications,to compare the mechanism of biointegration and/or failure of the device and the correlation with clinical histories. METHODS The first patient was diagnosed with optic deposits and corneal melting during the late postoperative period and required the removal of the device. The second ...

1. Most isolated guinea pig mononuclear exudative cells in tissue culture become typical migrating macrophages, but a small proportion take on fibroblastic characteristics, and produce pure colonies of fibroblasts. These fibroblasts maintain their morphological characteristics through repeated subcultures. 2. It is suggested that the subsequent development of individual mononuclear cells in tis...

Removal of barrier membranes may complicate second-stage implant surgery, particularly in mandibular areas characterized by a shallow vestibule and minimal amount of keratinized tissue. A new surgical technique that permits implant exposure and membrane removal combined with a plastic procedure to improve soft tissue quality both buccally and lingually is presented. A midcrestal incision preser...

end of the stent graft is extracted from the aorta. If another graft is used, proximal anastomosis is carried out with the balloon inflated. To complete the anastomosis a second Foley catheter is passed through a limb of the new graft (Fig 2). While the original catheter is deflated and removed, the second balloon is inflated in the suprarenal aorta (Fig 3) and the anastomosis completed. ACKNOW...

OBJECTIVE To assess the outcome of athletes returning to contact sport with indwelling fracture implants. METHOD A retrospective analysis of professional rugby union players competing in the South Wales premier league. RESULTS Fifteen athletes were identified who had returned to competitive rugby union with retained fracture implants during the period 1990-97. After fracture fixation, the p...

RESULTS: Of the 10,784 patients who underwent immediate prosthesis-based reconstruction, 5,516 (51%) filled antibiotic prescriptions. These patients were equally likely to develop an infection (OR 1.0 95%CI(0.85–1.18); p=0.98) or require explantation (OR 0.96 95%CI(0.80– 1.15); p=0.64) compared to those who did not. There was no difference in the likelihood of infection or explantation based on...

BACKGROUND AND OBJECTIVE The present study aimed to assess the effects of induced diabetes and the administration of aminoguanidine in the biomechanical retention of implants in rats. MATERIAL AND METHODS Thirty-six rats were randomly divided into six groups: group 1, healthy rats (no aminoguanidine); group 2 and group 3, healthy rats receiving 10 and 20 mg/kg of aminoguanidine daily, respect...

This report describes the first human retrieval of a polycarbonate-urethane (PCU) acetabular cup implanted for 10.5 months that was revised for pain of unknown origin. By using a micro-CT analysis, the articulating surface was determined to have a wear rate of less than 1.4 mm3 per year. An analysis of the synovial fluid retrieved at the time of revision found an average particle size of 1 mum ...