Biomedical subjects
Publications and source records attributed to H Hyakusoku.
We report a method of elevating and rotating a flap, like a propeller, for the release of scar contractures. We have obtained satisfactory results in the repair of scar contractures in the cubital and axillary regions. This flap may be applied to the flexor side in other regions, for example the groin, popliteal fossa and fingers where burn contractures are common.
We have shown the effectiveness of using externally attached frames made of Kirschner wires in fixing grafts. The technique has proved to be useful for securing grafts to graft beds and it has prevented the edges of the grafts from lifting. With simple materials and a simple technique, the tie-over method combined with external wire frames has brought about better results in sheet skin grafting.
The case of a 35-year-old Japanese male patient with so-called Mikoshi-Kobu is presented. Because articles about this type of tumor are rare, we report this case with its surgical and histopathological findings.
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A technique for the correction of flat or inverted nipples is presented. The procedure is a combination of the square flap method, which better shapes the corrected nipple, and the dermal sling, which provides good support for the repaired nipple.
We report a case of reconstruction of the upper lip in the male using a prefabricated hair-bearing island flap. The flap was made by implantation of a superficial temporal vascular bundle with microvascular anastomoses to the facial vessels. We conclude that the technique is a useful alternative to other methods of reconstruction because of its reliable blood supply.
We report a method for increasing the distance between two points on the skin surface by using two triangular flaps and a square flap. The theoretical lengthening is excellent when one of the triangular flaps is right-angled. The method has been used successfully in 40 cases of scar contracture, various clefts and cryptotia.
We report the usefulness of scar flaps and secondary flaps in the surgical repair of extensively burned patients. Burn scar contractures repaired with scarred axial pattern flaps, scarred musculocutaneous flaps and scarred fasciocutaneous flaps are described. However, it is our contention that their application should be strictly limited. An example of the use of scarred secondary axial pattern and musculocutaneous flaps for reconstruction of a burned ear is shown.
We have reported on a patient with a congenital auricular deformity in whom the cleft was between the helix and the earlobe. This is an extremely rare situation. We have named it congenital auricular cleft, because the case we described is different from congenital cleft earlobe in terms of position of the cleft.
The effectiveness of the Q-switched ruby laser was investigated in 38 patients with nevus of Ota at more than 10 months after the first irradiation. In 14 patients who were followed-up for a mean of 25.2 months after the first treatment, the effectiveness was evaluated as "excellent" in eight patients (57%), "good" in four patients (28%), and "fair" in two patients (14%). The mean number of irradiation treatments was 7.3 in the "excellent" group, 4.2 in the "good" group, and 3.0 in the "fair" group. In 24 patients who were followed-up for a mean of 13.6 months after the first treatment, the effectiveness was evaluated as "excellent" in eight patients (33%), "good" in 12 patients (50%), and "fair" in four patients (16%). The mean number of irradiation treatment was 5.7 in the "excellent" group, 5.2 in the "good" group, and 2.5 in the "fair" group. Even after repetitive irradiations, good results without scarring were noted in all cases except one where a slight inverted scar was developed. The effective rate tended to be higher in patients who underwent more irradiation treatments and were observed for a longer period of time. Satisfactory cosmetic results were achieved after Q-switched ruby laser therapy for nevus of Ota.
The authors present eight cases of reconstruction of the breasts using bilaterally divided TRAM flaps after removing the injected silicone gel and granulomas. In Japan, we have the opportunity to examine many patients who have had foreign substance injections to the breasts for purposes of augmentation however, most of them are now suffering from delayed complications. Until now we have reconstructed breasts such cases by use of silicone bag prostheses after removal of granulomas; however, now it is difficult to obtain silicone prostheses. Thus, we have decided to reconstruct by the use of autogenous cutaneous and adipose tissue flaps as presented by us in this article.
Infantile hemangiopericytoma is a rare soft tissue neoplasm of pericytic origin and is almost always benign, despite its worrisome pathologic features. We describe a 2-month-old male infant with a soft tissue mass on his right thigh. Histologically, the lesion showed a characteristic hemangiopericytoma-like vascular pattern, multilobulation, and moderate mitotic activity. These morphologic features were prediagnosed as infantile hemangiopericytoma. However, immunohistochemical and ultrastructural studies revealed a heterogeneous cellular composition, primarily pericytes and endothelial cells, similar to that observed in infantile myofibromatosis.