Medpor外耳再造术皮肤覆盖方案的临床研究

目的:本文通过比较几种不同的支架外皮肤覆盖方案,探索一种手术效果稳定可靠的合成材料支架外耳再造方法。方法:48例先天性小耳畸形,应用Medpor支架行全外耳再造术,支架外软组织覆盖材料分别为单纯乳突区扩张皮肤1例、颞顶筋膜瓣加植皮25例、乳突区扩张皮瓣加颞顶筋膜瓣22例,观察比较应用不同覆盖材料耳再造后支架外露发生率、再造外耳外形轮廓、表面皮肤颜色质地。结果:临床应用48例,随访1至6年,应用单纯乳突区扩张皮瓣覆盖者1年内耳支架完全外露;应用颞顶筋膜瓣加植皮者再造耳廓外形及轮廓优良,但大部分病例再造耳廓皮瓣不同程度色素异常;应用乳突区扩张皮瓣及颞顶筋膜瓣联合覆盖者再造外耳形态及轮廓均优良,且表面皮瓣颜色质地与周围皮肤和对侧外耳皮肤一致,美容效果最佳。结论:应用乳突区扩张后皮瓣及颞顶筋膜瓣双层组织瓣的软组织覆盖方案可以满足Medpor再造外耳的外形、轮廓及皮色的需求,是一项安全稳定的手术方案,综合效果优于颞顶筋膜瓣加植皮方案,而单纯应用乳突区扩张皮瓣的方案不适用于Medpor外耳再造术。因此推荐在选用Medpor耳支架行全外耳再造治疗Ⅲ度先天性小耳畸形时,优先选用颞顶筋膜瓣联合乳突区扩张皮瓣的软组织覆盖方案。     

Reconstruction of extensive defects of the cranium using free-tissue transfer

Fourteen patients with large tissue deficits in the calvarium and orbits were reconstructed using microvascular free-tissue transfer (15 flaps). The etiology of these defects was skin neoplasms (seven), osteomyelitis (four), burn (two), and trauma (one). The free flaps used were the latissimus dorsi muscle flap with a split-thickness skin graft (seven), latissimus dorsi myocutaneous flap (two), rectus abdominis myocutaneous flap (three), radial forearm fasciocutaneous flap (two), and split-iliac crest flap (one). There was one postoperative death, one flap failure, two recurrences of neoplasm, and one loss of bone grafts and flap from infection. The free flaps can offer good results in patients undergoing wide resection in the cranium and orbits providing immediate repair with acceptable cosmetic result, minimized morbidity, and short hospitalization. However, immediate reconstruction following tumor resection carries a danger of positive margins discovered on permanent histologic sections or the difficulty in detecting recurrence underneath a bulky free flap.     

Microvascular soft tissue reconstruction after complicated talocrural arthroplasty

Seven patients were referred to our unit during a 17-month period because of soft tissue problems 2–4 weeks after a talocrural arthroplasty (TCA). The infection was superficial in one and deep in six cases. In all patients the area was revised and a microvascular flap reconstruction was performed. In four cases the prosthesis was left in place and in two TC fusions were done. The flap was selected according to size and shape of the defect. Four partial latissimus dorsi flaps (LD), two gracilis free flaps, and one radial forearm flap (RF) were used. Four of the seven TCAs could be salvaged and no amputations were needed.     

Massive autoclaved allografts and autografts for limb salvage surgery A1-8 year follow-up of 23 patients

We performed 23 reconstructions with bone grafts autoclaved at 135 °C for 10 minutes for extensive bone defects after tumor resection. In 15 cases, the resected specimens were autoclaved and used as autografts. In 7 cases, allografts obtained from amputated extremities or cadavers were autoclaved and immediately stored at -80 °C prior to their use. A combination of the two was used in 1 case. The grafts were used in combination with prostheses or other forms of internal fixation. The mean follow-up was 49 (14-98) months. Incorporation of the host-graft junction was observed radiographically after a mean of 11 (6-17) months in all cases. No recurrence due to the autoclaved bone was observed. However, 10 patients suffered complications, including infection, bone resorption, fracture and loosening of the prosthesis. In terms of Mankin's evaluation of bone grafts, 12 patients were evaluated as good or excellent. We conclude that despite the complications, autoclaved autografts and allografts are viable options for reconstruction in many countries because of the difficulty of obtaining large quantities of fresh frozen allografts.     

Total scalp reconstruction with bilateral anterolateral thigh flaps

Large scalp defects can require complicated options for reconstruction, often only achieved with free flaps. In some cases, even a single free flap may not suffice. We review the literature for options in the coverage of all reported large scalp defects, and report a unique case in which total scalp reconstruction was required. In this case, two anterolateral thigh (ALT) flaps were used to resurface a large scalp and defect, covering a total of 743 cm(2). The defect occurred after resection and radiotherapy for desmoplastic melanoma, with several failed skin grafts and local flaps and osteoradionecrosis involving both inner and outer tables of the skull. The reconstruction was achieved as a single-stage reconstruction and involved wide resection of cranium and overlying soft-tissues and reconstruction with calcium phosphate bone graft substitute, titanium mesh, and two large ALT flaps. The reconstruction was successfully achieved, with minor postoperative complications including tip necrosis of one of the flaps and wound breakdown at one of the donor sites. This is the first reported case of two large ALT flaps for scalp resurfacing and may be the largest reported scalp defect to be completely resurfaced by free flaps. The use of bilateral ALT flaps can be a viable option for the reconstruction of large and/or complicated scalp defects.     

Treatment of the exposed knee prosthesis

Ten knees with early tissue breakdown after knee arthroplasty resulting in exposed prostheses were treated with different plastic surgical techniques. Six knees were successfully covered: four using a gastrocnemius musculocutaneous flap, one using a fasciocutaneous flap, and one using split-skin grafts. Four knees failed: two using local skin flaps and two using split-skin grafts. A gastrocnemius musculocutaneous flap seems to provide a reliable coverage of the exposed knee joint.     

小腿内侧皮瓣在修复口底癌术后缺损中的应用

目的 研究小腿内侧皮瓣在口底癌术后缺损修复中的应用.方法 应用该修复方法,共进行了5例口底癌术后缺损的修复,并对该皮瓣的应用解剖,制作技术及其优缺点进行了讨论.结果 7侧小腿内侧皮瓣均获得成功.口内外伤口均愈合良好,取得了良好的修复效果.覆盖于小腿内侧皮肤缺损区的皮片全部成活.结论 小腿内侧皮瓣适用于口底癌术后组织缺损的修复.对于口腔颌面部肿瘤术后的软组织缺损可利用携带部分比目鱼肌的小腿内侧皮瓣修复软组织缺损.小腿内侧游离皮瓣的皮下脂肪薄,皮瓣较柔软且远离术区,术后供区隐蔽,损伤小.     

Reconstruction of the anterior floor of the mouth with the inferiorly based nasolabial flap

The results of reconstruction of the anterior floor of the mouth, using 105 nasolabial flaps in 79 patients were reviewed in a retrospective study. Of those flaps, 82% healed uneventfully; flap survival was 95%. Considerable flap loss occurred in 5%. Primary dehiscence was observed in 5% of all flaps. This healed spontaneously with conservative therapy. In two cases (2%), an infection of the floor of the mouth required a reoperation: in one patient, a viable nasolabial flap had to be removed, and in the other case, the flap was maintained. Direct primary closure of an intraoral defect under tension should always be avoided. A lengthy and complex reconstruction is not always needed; the nasolabial flap is a safe and useful method for intraoral reconstruction. In case of small defects, it offers a fast and simple alternative to other pedicled flaps and free flaps. Received: 30 December 1999 / Accepted: 3 February 2000     

Treatment of the exposed knee prosthesis

Ten knees with early tissue breakdown after knee arthroplasty resulting in exposed prostheses were treated with different plastic surgical techniques. Six knees were successfully covered: four using a gastrocnemius musculocutaneous flap, one using a fasciocutaneous flap, and one using split-skin grafts. Four knees failed: two using local skin flaps and two using split-skin grafts.

A gastrocnemius musculocutaneous flap seems to provide a reliable coverage of the exposed knee joint.     

Reconstruction of elbow region defects using radial collateral artery perforator (RCAP)-based propeller flaps

Perforator-based propeller flaps permit flap rotation up to 180°. This ability to transfer skin from one longitudinal axis to another has led to the increasing use of perforator-based propeller flaps in extremity reconstruction, especially lower-extremity reconstruction. However, the application of perforator-based propeller flaps to upper-extremity reconstruction is still limited. This article reports two cases of successful reconstruction of elbow region defects with radial collateral artery perforator (RCAP)-based propeller flaps. The elbow region has a variety of perforators available for perforator-based propeller flap reconstruction. Among them, the RCAP seems to be one of the most reliable options. This is because there are less anatomical variations of perforators' location on the lateral upper arm than on the medial upper arm. By using an RCAP perforator as a flap pedicle, the small-to-medium sized defects (<6?cm in diameter) around elbow regions can be closed primarily without skin grafts.     

Versatile use of the muscle and nerve sparing latissimus dorsi flap

In this report, we describe the technique of muscle and nerve sparing latissimus dorsi (LD) flap and evaluate the outcomes of reconstruction of various defects with 12 free and 2 pedicled muscle and nerve sparing LD flaps in 14 patients. The LD muscle functions at operated and nonoperated muscles were evaluated clinically and with electroneuromyography. All flaps survived completely but one which had a partial necrosis. The mean follow-up time was 12.3 months. Adduction and extention ranges of the shoulders were the same bilaterally in all patients. In electroneuromyography, no significant difference was available statistically between the sides. This muscle and nerve sparing latissimus dorsi flap has advantages of thinness, muscle preservation and reliability, and thus can be a good option to other fasciocutaneous flaps in reconstruction surgery.     

Total nasal reconstruction with 3D custom made porous titanium prosthesis and free thoracodorsal artery perforator flap: A case report

Total nasal reconstruction is a challenging surgical procedure which usually involves a free flap, forehead flap, and cartilage grafts. In certain failure situations where patients do not accept the idea of anaplastology, possibilities become very limited. We report the case of a patient who underwent several reconstruction steps with multiple failures including free and local flaps and cartilage harvests which showed recurrent episodes of necrosis and infection leading to melting and collapse of reconstructed structures. Furthermore, the patient did not want any anaplastological rehabilitation. We proposed to the patient an innovative method that consists to print a three‐dimensional custom‐made porous titanium prosthesis, based on the original shape of his nose, to replace the cartilage support. This implant was first inserted in a thoracodorsal artery perforator flap for primary integration before the free transfer of the complete structure, two months later. The free transfer was successful without any complication. A stable reconstruction and satisfying result was obtained. The patient did not want additional surgical improvement 24 months post‐operatively, and resumed his professional activities. The possibility of using three‐dimensional custom titanium prostheses to replace the bone and cartilage support seems to be an interesting alternative for patients in the failure situation of nasal reconstruction.     

Anterolateral thigh flap pedicle for interposition artery and vein grafts in head and neck reconstruction: a case report

The selection of receiving vessels is one of the most critical steps in ensuring a successful outcome in microvascular surgery. The use of interposition grafts in microsurgery offers the surgeon valuable options when the free flaps vascular pedicles are too short to be anastomosed directly to the recipient vessels. Here, we present a case in which artery and vein grafts were used in microsurgical reconstruction of an anterior maxillary defect with an iliac free flap. As donor vessels, we used the descending branch of the lateral circumflex femoral artery and one of the two venae commitantes. The flap survived without major or minor complications. The anterolateral thigh flap pedicle allowed us to harvest safe, reliable grafts easily, with a suitable vessel length and diameter.     

Reconstruction of soft tissue after complicated calcaneal fractures.

A total of 35 flap reconstructions were done to cover exposed calcaneal bones in 31 patients. All patients had calcaneal fractures, 19 of which were primarily open. Soft tissue reconstruction for the closed fractures was indicated by a postoperative wound complication. A microvascular flap was used for reconstruction in 21 operations (gracilis, n = 11; anterolateral thigh, n = 5; rectus abdominis, n = 3; and latissimus dorsi, n = 2). A suralis neurocutaneous flap was used in eight, local muscle flaps in three, and local skin flaps in three cases. The mean follow-up time was 14 months (range 3 months-4 years). One suralis flap failed and was replaced by a latissimus dorsi flap. Necrosis of the edges that required revision affected three flaps. Deep infection developed in two patients and delayed wound healing in another four. During the follow-up the soft tissues healed in all patients and there were no signs of calcaneal osteitis. Flaps were considered too bulky in five patients. Soft tissues heal most rapidly with microvascular flaps. In the long term, gracilis muscle covered with free skin grafts gives a good contour to the foot. The suralis flap is reliable and gives a good final aesthetic outcome. Local muscles can be transposed for reconstruction in small defects.     

Free temporoparietal fascial flaps and full-thickness skin grafts in aesthetic restoration of the nose

Free tissue transfers have been rapidly replacing distant flaps for use in nasal reconstruction. The temporoparietal fascial flap is a thin, broad, pliable, and well-vascularized flap. It can be used to drape over the cartilaginous and bony framework of the nasal skeleton and nourish the underlying primary cartilage grafts as well as the overlying full-thickness skin graft. The thin contour of the flap is aesthetically superior to thicker skin flaps and eliminates the need for secondary defatting or touch-up procedures. A large, single sheet of full-thickness skin graft, harvested from the supraclavicular region, can be applied over the fascial flap in the same session and provide a quite acceptable color match. The authors present a case whose alar margins and atrophic nasal skin were restored in one session by primary conchal cartilage grafts, a free temporoparietal fascial flap, and a full-thickness supraclavicular skin graft.     

Surgery of the auricle

Auricular reconstruction is a unique area of facial plastic surgery where a wide array of reconstructive options often must be considered. The external ear is unique in its aesthetic role where the normal auricle often goes unnoticed; yet even a small irregularity can stand out and become conspicuous. The reconstruction of large or total auricular defects is a combination of science and art. Two forms of auricular reconstruction are discussed: (1) those for a congenitally abnormal shape but no acquired tissue deficiency, that is, otoplasty, and (2) repairs requiring a reconstruction of discrete loss of tissue. A general algorithm is presented that can assist with flap selection and covers the techniques for grafts, framework repair, local and pedicled flaps, temporoparietal facial flaps, and auricular prostheses.     

Reconstruction of burned lower extremities by free flaps

Summary Three latissimus dorsi muscle flaps with skin grafts, one latissimus dorsi myocutaneous flap, and one scapular flap were used in reconstruction of deep burns of the heels and calf caused by various agents. The follow-up period was 11 to 46 months. Of the five patients treated, two sustained electrical injuries, two had contact burns and one suffered a degloving injury with a contact burn resulting from a car accident. The latissimus dorsi muscle flaps with skin grafts gave excellent results in reconstruction of the calf and ankle areas due to their large caliber vessels and versatility. The latissimus dorsi myocutaneous flap was indicated in a case with extensive soft tissue loss on the sole of the foot with stiffness of the ankle joint in plantar flexion. A non-sensory scapular flap was satisfactory for reconstruction of the medial half of the heel since the remaining lateral half of the heel provided adequate sensation for weight-bearing and protection. Early reconstruction of the burned lower part of the leg with free flaps shortens hospitalization and prevents further extension of the injury. Reconstruction of a burned distal lower extremity provides a challenge for the reconstructive surgeon due to limited availability of local tissue; there is durable soft tissue in the weight-bearing area and a relatively poor blood supply compared to other areas of the body. The basic requirement in the treatment of a full thickness burn is early debridement and immediate coverage of the defect with a skin graft or a well vascularized flap. Even though multiple local flaps, such as axial [7, 17], muscle [1], musculocutaneous [5], fasciocutaneous [11], and island flaps [4], have been described. These flaps are useful in relatively small wounds with undamaged sourrounding tissues. Electrical injuries are manifested in a variety of clinical and pathologic ways with early, as well as delayed, tissue damage complicating reconstruction. With the advent and refinement of microvascular techniques, it has become possible to reconstruct extensive defects of the distal lower extremity with either free muscle flaps with skin grafts [8], myocutaneous free flaps [10], or axial free flaps [18]. This paper relates our experience in reconstruction of extensive defects of the lower extremities caused by various burning agents.     

Free latissimus dorsi flap transfer for subtotal scalp and cranium defect reconstruction: report of seven cases

The purpose of this paper is to review the results of free latissimus dorsi transfer for scalp and cranial reconstruction in the case of large defects with exposed brain tissue, cranial bone without periosteal cover, and dura, which cannot be reconstructed with local flaps or skin grafts. Free latissimus dorsi transfer was carried out in seven patients with subtotal and total scalp defects (two reconstruction after tumor removal, two reconstructions after long-standing osteitis, two tissue breakdown after irradiation, one defect reconstruction after high voltage injury). There were three male and four female patients. The age ranged from 36 to 72 years. Reconstruction was performed with a muscle flap (1) or a myocutaneous flap (6) in combination with a split-thickness skin mesh (1:1.5) graft in a single-stage procedure. In a retrospective clinical study, the following criteria were evaluated: (1) flap healing, (2) aesthetic result, and (3) complications. All flaps healed primarily, and all wounds remained closed without any signs of infection. Complete wound healing was achieved after 4 to 8 weeks, depending on the “take” of the skin grafts. Secondary skin grafting was necessary in two patients, while revision of the donor site was necessary in two patients. From an aesthetic point of view, four patients complained about the appearance of the retroauricular skin island. After removal of the skin island 6 months after the initial operation, all patients judged the result as good or acceptable. Besides the free omentum flap, the free latissimus dorsi transfer is the only option for cover of subtotal or total scalp defects. Compared to the omentum flap, the latissimus dorsi offers more tissue, has less donor site morbidity, and secondary surgery such as cranial bone reconstruction is possible. Contrary to most authors, our preferred donor vessels are maxillary artery and the external jugular vein. To avoid any vascular compression, we use a myocutaneous flap. The skin island must be removed secondarily. In patients where no bone reconstruction is possible or planned, the de-epithelialized skin paddle can be used for correction of a contour defect.This work was presented at the Spring Meeting of the Belgian Society for Plastic, Reconstructive and Aesthetic Surgery, May 8, 2004 in Ghent, Belgium.     

Pedicled perforator flaps in breast reconstruction: a new concept.

INTRODUCTION: Pedicled perforator flaps have not been widely described for the breast. The aim of this study is to report our clinical experience with pedicled perforator flaps in breast reconstruction. MATERIAL AND METHODS: Between May 2000 and May 2003, pedicled perforator flaps were used in 31 patients. The indications were immediate partial breast reconstruction and thoracic reconstruction for carcinomatous mastitis or tumour recurrence. Perforators were identified by Doppler preoperatively. The Doppler-located thoracodorsal artery perforator (TDAP) or another perforator such as the intercostal artery perforator (ICAP) was looked for. If the perforators had good calibers, the flaps were then based solely on these perforators. If the perforators were tiny but pulsating, the TDAP flap was harvested as a muscle-sparing latissimus dorsi type I (MS-LD I) with a small piece of muscle (4x2 cm) included to protect the perforators. If the perforators were not-pulsating, a larger segment of the LD muscle was incorporated to include the maximum of perforators (MS-LD II flap). The nerve that innervates the rest of the LD muscle was always spared. If most of the LD was included in the flap, the flap was then classified as MS-LD III. RESULTS: The mean flap dimensions were 20x8 cm. Using this algorithm, the TDAP flap was harvested in 18 cases and the ICAP flap in three cases. In addition, there were 10 MS-LD flaps with a variable amount of muscle. In addition, one parascapular flap was dissected. A successful flap transfer was achieved in all but three patients, in whom limited partial necrosis occurred. Seroma was not encountered at the donor sites of the perforator flaps (0%) compared to four (40%) after a MS-LD flap. CONCLUSION: Our results show that pedicled perforator flaps are additional options for breast surgery and that they may be used whenever an adequate perforator can be found. This technique is safe and reliable if the algorithm described is used when choosing a flap.     

Free latissimus dorsi perforator flap for reconstruction of hemifacial atrophy: case report

Progressive hemifacial atrophy (PHA) is characterized by slow and progressive atrophy usually of one side of the face. PHA affects primarily the subcutaneous fat and muscle tissues, but may involve the bone. The cause is unknown. The treatment is symptomatic and directed at augmentation of the deficient soft-tissue volume. The reconstructive procedures may combine fat grafts, dermis fat grafts, pedicle flaps, bone grafts, microvascular free flaps, and alloplastic implants. We report a patient with of PHA whose condition was treated with a free latissimus dorsi (LD) perforator flap. The LD perforator flap was suitable for the large defect of the patient. It could easily be tailored and thinned to follow the facial contour. Minor revisions were needed for esthetic reasons. There was neither significant downward gravitation nor wasting of the flap. 23 months later, the natural appearance of the face was maintained.