No abstract available.
Ulcer*

No abstract available.

The basic criteria of facial reconstruction with the flap are consisted of easy and wide applicability, good color and texture matching to the face and reliable anatomical basis. On these points, the submental island flap is superior to other regional flaps such as tissue expansion technique and free flaps It is based on the submental vessels branching from the facial vessels located at the medial groove of submandibular gland. Its pedicle has a reliable course along the inferior border of mandible with a constant distance and its perforator(s) is (are) located at the submental area around the anterior belly of digastric muscle. We report on its use in 4 cases of facial resurfacing on the cheek, the preauricular area and the nose in arteriovenous malformation and malignant skin cancer patients. The mylohyoid and anterior belly of digastric muscles could be included within the flap and the reverse submental island flap was also useful for obtaining the wide rotation of arc. The mean follow-up period was 8.3 months and the results were satisfactory to the patients. The submental island flap is reliable flap for facial resurfacing because of its good color and texture, acceptable donor scars, and thin, flexible flap. The flap also can incorperate with the skin, the muscle, and the bone in case of complicated facial defects. The long vascular pedicle also enables a wide applicability of the flap And also it can be used as a free flap, expanded flap and reverse island flap for the facial resurfacing.
Arteriovenous Malformations ; Cheek ; Cicatrix ; Follow-Up Studies ; Free Tissue Flaps ; Humans ; Mandible ; Muscles ; Nose ; Skin ; Skin Neoplasms ; Submandibular Gland ; Tissue Donors ; Tissue Expansion

With the continuous development of diagnostic techniques of precancerous lesion and an improved patient-transfer system, it is unusual to examine patients who have a life-threating malignant skin lesion. However it is still a problem in some far-advanced inoperable skin tumors which have been neglected and have become aggravated, Another problem in oncologic surgery is previous irradiation around a lesion. The only effective way to treat these lesions is to excise widely and cover with an appropriate free flap. But in such conditions, selection of recipient vessel is not easy. Many surgeons have used vein graft as the conduit from a distant non-radiated vessel to the free flap. This technique requires a long segment of vein for anastomosing both the artery and vein. We used intra-lesional vessels as the recipient vessel of the free flap, which were suspiciously damaged by irradiation and malignant cell infiltration. The guidelines include: 1) malignancy-infiltrated vessels are to be dissected until a clear field is obtained under a frozen section 2) irradiated vessel can be used only if active spurting is present without intraluminal thrombosis. All of our case obtained satisfactory results in all cases except one of irradiated squamous cell carcinoma at inguinal area whose gracilis myocutaneous free flap loss was in 10%. But even this case, the cause of partial loss of the flap may not be due to a vascular problem but an internal failure of the flap. We concluded, that carefully selected intra-lesional vessels, although they may be damaged by irradiation or malignant cell infiltration can be used as the recipient vessels of free flaps.
Arteries ; Carcinoma, Squamous Cell ; Free Tissue Flaps* ; Frozen Sections ; Humans ; Skin ; Thrombosis ; Transplants ; Veins

The finger-tip is a specially-differentiated end structure of the human body in anatomic aspect. Although it is covered with thick dermis and a heavily-cornified epithelial layer, the finger-tip represents tremendous sensory perception because of dense sensory nerve endings. This highly sensitive skin is attached to the phalangeal bone or fascia and stabilizd during grip or pinch by the fascial septa, which form compartments of fat pads in the pulp tissue. In addition to its functional aspect, the finger tip plays an important cosmetic role because it is an exposed area like the face. So, when reconstructing finger-tips, especially the thumb or radial side of the index finger, one must take into account both the functional and esthetic results. In this study, 8 cases of great toe pulp sensory free flaps for fresh amputations (n=4) and previously reconstructed wounds (n=4) are included. In previously-reconstructedcases cases, all of them complained of incomplete recovery of sensation or cosmetic dissatifaction. The fingers covered with flaps were the index finger (n=5), ring finger (n=2), and thumb (n=1). The mean size of flaps was 3 x 1.9 cm and all of the flaps survived without significant complications, except 1 case of venous insufficiency. Sensory complications, except 1 case of venous insufficiency. Sensory perception was detected within 4 months and improved gradually during the follow-up period to 10.5 mm/8 mm in static/moving two-point discrimination test. Even though, some patients complained of postoperative paresthesia including cold intolerance (37.5%), pain (25%) and hyperesthesia (12.5%), the great toe pulp sensory flap is an aesthetically superior and sensuously more satisfactory alternative to other reconstructive procedures for fingertip defects.
Adipose Tissue ; Amputation ; Dermis ; Discrimination (Psychology) ; Fascia ; Fingers ; Follow-Up Studies ; Free Tissue Flaps* ; Hand Strength ; Human Body ; Humans ; Hyperesthesia ; Paresthesia ; Sensation ; Sensory Receptor Cells ; Skin ; Thumb ; Toes* ; Venous Insufficiency ; Wounds and Injuries

There are some effective methods for removing layers of skin to improve aging face and dermatologic defects : chemabrasion (chemical peeling), dermabrasion(surgical removal), laserabrasion. Chemabrasion, generally performed with a chemical solution, is most useful for removal of fine facial wrinkles and abnormal pigmentation. The application of chemical caustics, especially TCA (trichloroacetic acid), is known to be an effective and is now commonly practiced to improve the surface of the facial skin that has been blemished by pigmentation, wrinkles, solar damage and certain scars. Trichloroacetic acid is a colorless melting crystal and derivatives of acetic acid which das protein precipitating properties. It has specific odor but there is not systemic toxic effect like a phenol. It has heavy caustic effect on skin and mucosa and cause the coagulation necrosis of the skin and therefore, it must be handled carefully and stored in the proper condition. Especially, moderate to high concentrated TCA solution must be treated by well-trained persons. A 46-year-old woman visited a private clinic for removal of fine wrinkles around the lip. She was refered to our department because of acute upper lip coagulation necrosis which was caused by injection of 35% TCA solution mistaken for lidocaine, which was supposed to be used for anesthesia. At her arrival, cental half of upper lip showed severe coagulation necrosis. The lesion was well discriminated in a few days, then debridement and immediate reconstruction was done using an Abbe flap. Chemical peeling is a relatively effective procedure for improvement of aging skin lesion in a lower cost with a short time operation, if the practitioner has much experience and optimal indication is properly selected. But not so as, side effect and complication may be often ocurred in a mistake and as a result irreversible scars are remained. We experienced a rare case of upper lip necrosis which was caused by TCA injection mistaked for lidocaine in a private clinic and so, We report this case with the results of experiment of rabbit model which was observation of macroscopic and microscopic changes of the abdominal skin of the rabbit injected with serially diluted TCA solution.
Acetic Acid ; Aging ; Anesthesia ; Caustics ; Cicatrix ; Debridement ; Female ; Freezing ; Humans ; Lidocaine ; Lip* ; Middle Aged ; Mucous Membrane ; Necrosis* ; Odors ; Phenol ; Pigmentation ; Skin ; Trichloroacetic Acid

No abstract available.
Osteotomy*

The management of skin and soft tissue defects on the buttock, perineum and lower abdomen has been improved through the development of myocutaneous flap. However, sacrifice of the deep muscles causes some problems such as intraoperative bleeding and functional disabilities of donor sites. And we can not also control the volume of the flap for the skin reliability of myocutaneous flaps. To overcome these disadvantages, we tried perforator-based myocutaneous island flaps for the reconstruction of the sacral, ischial sores or deep wounds of the perineum and lower abdomen. During the dissection of the flap, we could control the volume and shape of the flap exactly depending on the perforators. Clinically, total of 14 cases were treated with 10 parasacral perforator-based myocutaneous island flaps and 4 perforator-based extended myocutaneous island flaps. Parasacral flap is based on the parasacral perforators along the lateral sacral border and, the degree of containing muscles can be easily decided according to the depth of wound. In the cases of the extended myocutaneous flaps, we could design the perforator-based skin flap on the tip of myocutaneous island flap and appropriate volume of skin falp was obtained with the wide arc of rotation. Finally, the donor defect could be closed primarily and there was no significant sequela. There perforator-based myocutaneous island flaps require no significant sacrifice of the muscles and can be easily dissected and applied with the appropriate volumes for the reconstruction of the defect on the buttocks, perineum and lower abdomen.
Abdomen ; Buttocks ; Hemorrhage ; Humans ; Muscles ; Myocutaneous Flap ; Perineum ; Skin ; Surgical Flaps ; Tissue Donors ; Wounds and Injuries*

The reconstruction of pressure sore is often complicated problem due to underlying disease and general condition of the patients. Sometimes, it is too radical to use the muscle or musculocutaneous flap for the patients who has severe systemic disease and can not withstand the lengthy operation or the patients who already recovered from paraplegic condition and has no risk recurrence. To get over these problems, we recently have used the parasacral perforator-based island skin flaps for the sacral pressure sores. This flap is based on the axial pattern perforators originating from the internal pudendal artery and lateral sacarl artery. We performed this operation for 11 sacral sores with reasonable results. There was no significant complication, and duration of operation was relatively short and blood loss was a little. We concluded that this flap was useful for the patient with sacral pressure sore who could be categorized nontraumatic nonparaplegic group(NTNP group) or nontraumatic paraplegic group(NTP group). But this island flap has drawback, which is elimination of sensory nerve within the flap.
Arteries ; Humans ; Myocutaneous Flap ; Pressure Ulcer* ; Recurrence ; Skin*

No abstract available.
Pressure Ulcer*