Biomedical subjects

Satoshi Yurugi

Publications and source records attributed to Satoshi Yurugi.

22 records · Page 2Linked to original sources

PubMed2002

Hard palate mucosal grafts for defects of the nail bed.

The authors present 2 children in whom a hard palate mucosal graft was used for a defect of the nail bed after resecting subungual exostosis. After the tumor was resected with the overriding nail bed, hard palate mucosa without periosteum was grafted to the nail bed defect. In both patients the graft took completely, and within 2 weeks after the operation the patients were able to enjoy activities of daily life, including athletic movement, without any symptoms. Nail growth was uneventful and was complete in 4 or 5 months after the operation without any complications. The authors think that a hard palate mucosal graft is a valid choice for a defect of the nail bed, and the mucosa does not need to be harvested with periosteum. The grafting of hard palate mucosa without periosteum to a defect of the nail bed contributes to a shorter healing time, resulting in a reduction in the period of restriction of movement in activities of daily life, and this is a great advantage in children.

Adolescent↗

PubMed2002

Preshaped hydroxyapatite tricalcium-phosphate implant using three-dimensional computed tomography in the reconstruction of bone deformities of craniomaxillofacial region.

We prepared solid life-sized models and templates of implants based on three-dimensional computed tomography data in six cases with a bone deformity of the craniomaxillofacial region. After simulation surgery using these models and templates, the preshaped hydroxyapatite-tricalcium phosphate (HAP-TCP) implants were prepared to fill in the facial bone defects, and implantation was performed. Consequently, implants fitted the individual bone defects, and satisfactory facial contouring was obtained in five cases. In one case with severe cutaneous scarring in the grafted site, it was necessary to reduce the volume of the preshaped HAP-TCP implant during surgery. In conclusion, the three-dimensional, solid, life-sized model and template are useful for preoperative detailed simulation, and the use of preshaped HAP-TCP implants based on the template probably contributes to successful reconstruction of complex facial bone deformities and to the reduction of surgical invasion, resulting in achievement of better results.

Adult↗

PubMedDate not supplied

Correction of bone deformity after resection of dermoid cyst using artificial dermis implantation.

We report cases of the dermoid cyst patients with a bone deformity that were treated with artificial dermis implantation. After resecting the tumor, three or five sheets of artificial dermis (Terudermis, Terumo Co. Ltd, Tokyo, Japan) are placed into the depressed site in order to create symmetrical surface with the contralateral side. Neither of the cases presented here showed allergic or infectious reaction during postoperative follow-up period. In both cases, the texture of the implanted region is almost the same as the contralateral side and is almost symmetrical. We believe that artificial dermis may be a useful implantation material to correct depressions in the patient with dermoid cysts.

Adolescent↗

PubMedDate not supplied

Usefulness and limitations of artificial dermis implantation for posttraumatic deformity.

We have previously reported the use of artificial dermis implantation to cover exposed major vessels and to correct a depressed region after tissue resection and bone deformity with satisfactory results. In this paper, we present cases with depressed lesions and adhesive lesions after trauma, treated with artificial dermis implantation. Artificial dermis (Terudermis, Terumo Co. Ltd., Tokyo, Japan) was implanted in 12 cases of posttraumatic deformity. Eight of the 12 cases involved a depressed lesion, and the other four involved adhesive lesions. There was no postoperative infection or allergic reaction in any of the patients. Improvement of the deformity was obtained in all cases, but the degree of volume reduction in traumatic cases is likely to be more severe than that in the non-traumatic cases previously reported. In conclusion, artificial dermis implantation is an easy, safe, and useful method to correct a posttraumatic deformity, such as a depression or an adhesion, although it is important to note that depressions require overcorrection in order to obtain satisfactory results, as compared with non-traumatic cases treated with artificial dermis.

Adult↗