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1.
In cases of microtia with a low hairline, the manner in which hair is removed from the reconstructed auricle must be taken into consideration. This is one of the most common but difficult problems with reconstruction for microtia. The authors describe a new technique that uses a simple regional flap to resolve this problem. The hair-bearing skin in the estimated auricular region and its covering are removed using a local flap from the hairless mastoid region. This is done in the first stage of auricular reconstruction, the costal cartilage grafting is done in the second stage, and elevation of the auricle is done in the last stage. In 38 auricles of 36 patients who were treated from 1993 to 1995, eight auricles of eight patients were treated with this technique. In all cases, the hairless flap healed well, without vascular stasis or skin necrosis. In addition, no complications from using this technique occurred in the later stages of auricular reconstruction. With this technique, the skin of the flap provides a good texture and color match to the auricle. In addition, the skin of the flap has good elasticity for the cutaneous pocket for cartilage grafting. The harvested area of the flap can be hidden behind the reconstructed auricle. The authors initially wondered whether the marginal scar of the transposed flap's position in the auricle would be conspicuous. However, all of the scar became inconspicuous because it was positioned in the scaphoid fossa.  相似文献   

2.
Subfascial expansion and expanded two-flap method for microtia reconstruction   总被引:13,自引:0,他引:13  
This article presents an improved two-flap method for microtia reconstruction. In the first stage of this method, a tissue expander is inserted in the mastoid region through a subfascial pocket, after which the overlying fascia and skin are expanded simultaneously with saline infusion for about 5 months. In the second stage, the expanded fascial and skin layers are split and prepared as anteriorly based skin and fascial flaps defined by their vascularity. An erect, three-dimensional, contour-accentuated ear framework fabricated with autogenous rib cartilage is inserted between the two flaps. The anteroauricular surface of the framework is draped with the thin, expanded skin, and the postauricular surface is draped with the thin, expanded fascia and overlying grafted skin. In the third stage, remnant auricular cartilage is removed and the crus helicis, tragus, intertragic notch, conchal floor, and a hollow mimicking the external auditory meatus are shaped. In this study, 146 microtias were reconstructed consecutively using the improved two-flap method. The final results were promising--major complications were minimal and most patients showed consistently favorable aesthetic results. This method married a two-flap procedure with a gradual tissue expansion, conveniently exploiting the advantages of both methods, but without the disadvantages.  相似文献   

3.
F J DellaCroce  S Green  E F Aguilar 《Plastic and reconstructive surgery》2001,108(6):1479-84; discussion 1485-6
Historically, fashioning an auricle for a patient born with microtia has been one of the most challenging endeavors in the repertoire of reconstructive surgeons. Despite many ideas advanced on types of materials for the auricular framework, the hands-down favorite and today's medium of choice is autogenous costal cartilage. A subject that remains up for discussion, however, is the question of growth potential in these cartilaginous frameworks. Popularization of the surgical technique for auricular reconstruction has led to much bandying about of opinions on this very important question of growth. Although previous reports allude to the probability of an increase in auricular size after reconstruction, this report is the first to document changes in auricular size with measurements taken directly from patients at the time of graft implantation and during subsequent long-term follow-up. The goals of this study are to define the behavior of the autogenous framework after reconstruction of the microtic auricle. This information serves to clarify the issue of proper framework sizing and to make evident the early age at which reconstruction can begin.The records of patients who underwent costal cartilage auricular reconstruction for grade III microtia between 1990 and 1996 were reviewed, and a cohort of 10 patients was chosen for inclusion based on availability for follow-up and lack of any interval modifications of their cartilaginous framework. The average age was 6.7 years, and the average time interval from initial reconstruction to follow-up was 3.2 years. Measurements of the auricular framework height and width were taken at implantation and at time of final follow-up, and measurements were recorded of the normal ears of patients with unilateral microtia. The mean auricular size was examined for significance of interval change using the two-sample Student's t tests, assuming unequal variances.The results revealed an average height increase of 5 mm (10.4 percent) in the study population. Auricular width changes averaged 2.75 mm (7.02 percent). Growth trends revealed a distinct tendency toward increasing auricular framework size over time, with slowing as patients neared adolescence. Comparison of the reconstructed auricle to the normal ear of each patient with unilateral microtia showed that the reconstructed ear paralleled the growth of the normal side, with no statistically significant differences in height or width at follow-up.This is the first report of auricular framework behavior based on patients having direct measurement of their framework initially and in long-term follow-up. This patient sample underscores a clear pattern of growth in the reconstructed auricles paralleling that of the normal ears. The implications of this finding are important in that the initial oversizing of the framework becomes unnecessary. Moreover, the decision as to age at initial reconstruction is not affected by anticipated growth rates.  相似文献   

4.
Altered joint motion has been thought to be a contributing factor in the long-term development of osteoarthritis after ACL reconstruction. While many studies have quantified knee kinematics after ACL injury and reconstruction, there is limited in vivo data characterizing the effects of altered knee motion on cartilage thickness distributions. Thus, the objective of this study was to compare cartilage thickness distributions in two groups of patients with ACL reconstruction: one group in which subjects received a non-anatomic reconstruction that resulted in abnormal joint motion and another group in which subjects received an anatomically placed graft that more closely restored normal knee motion. Ten patients with anatomic graft placement (mean follow-up: 20 months) and 12 patients with non-anatomic graft placement (mean follow-up: 18 months) were scanned using high-resolution MR imaging. These images were used to generate 3D mesh models of both knees of each patient. The operative and contralateral knee models were registered to each other and a grid sampling system was used to make site-specific comparisons of cartilage thickness. Patients in the non-anatomic graft placement group demonstrated a significant decrease in cartilage thickness along the medial intercondylar notch in the operative knee relative to the intact knee (8%). In the anatomic graft placement group, no significant changes were observed. These findings suggest that restoring normal knee motion after ACL injury may help to slow the progression of degeneration. Therefore, graft placement may have important implications on the development of osteoarthritis after ACL reconstruction.  相似文献   

5.
An approach for the correction of cryptotia using a superiorly based superficial mastoid fascial flap and a skin paddle is introduced. The buried portion of the auricle was exposed through an incision made along the upper part of the helix, followed by an appropriate correction of the deformed cartilage. Protrusion of the upper portion of the auricle was accomplished using anchoring sutures. A small skin paddle was elevated from the caudal portion of the auricular sulcus with the superiorly based superficial mastoid fascia as the nutrient pedicle and transferred to the temporal skin defect. The procedure was performed in eight auricles in a total of seven patients with cryptotia. A satisfactory contour and protrusion of the auricle were maintained postoperatively, leaving the scar within the auricular sulcus.  相似文献   

6.
Microtia reconstruction: does the cartilage framework grow?   总被引:3,自引:0,他引:3  
The use of free rib cartilage ear frameworks in unilateral microtia reconstruction has prompted much discussion about their potential for growth. The senior author has reconstructed ear frameworks in 132 microtia patients, most of whom were under 3 years of age when surgery was initiated. Of this group, 29 were assessed for ear growth through comparison of the lead-plate model of the original normal ear to the normal ear growth and the reconstructed ear framework after a period of at least 2 years. Similarly, 14 reconstructed ears were compared to 14 normal ears at least 2 years after reconstruction. The perimeters of tracings made from the original lead plates and of tracings of normal and reconstructed ears were determined by image analysis techniques. The results demonstrated no significant difference in growth between normal ears and reconstructed ear frameworks after an interval of at least 2.5 years. Therefore, the reconstructed ear is growing at a rate similar to that of the normal ear.  相似文献   

7.
Management of bone loss that occurs after severe trauma of open lower extremity fractures continues to challenge reconstructive surgeons. Sixty-one patients who had 62 traumatic open lower extremity fractures and combined bone and composite soft-tissue defects were treated with the following protocol: extensive debridement of necrotic tissues, eradication of infection, and vascularization of osteocutaneous tissue for one-stage bone and soft-tissue coverage reconstruction. The mechanism of injury included 49 motorcycle accidents (80.3 percent), five falls (8.2 percent), three crush injuries (4.9 percent), two pedestrian-automobile accidents (3.3 percent), and two motor vehicle accidents (3.3 percent). The bone defects were located in the tibia in 49 patients (79 percent; one patient had bilateral open tibial fractures), in the femur in seven patients (11.3 percent), in the calcaneus bone in four patients (6.5 percent), and in the metatarsal bones in two patients (3.2 percent). The size of soft-tissue defects ranged from 5 x 9 cm to 30 x 17 cm. The average length of the preoperative bony defect was 11.7 cm. The average duration from injury to one-stage reconstruction was 27.1 days, and the average number of previous extensive debridement procedures was 3.4. Fifty patients had vascularized fibula osteoseptocutaneous flaps, six had vascularized iliac osteocutaneous flaps, and five patients had seven combined vascularized rib transfers with serratus anterior muscle and/or latissimus dorsi muscle transfers. One patient received a second combined rib flap because the first combined rib flap failed. The rate of complete flap survival was 88.9 percent (56 of 63 flaps). Two combined vascularized rib transfers with serratus anterior muscle and latissimus dorsi muscle flaps were lost totally (3.2 percent) because of arterial thrombosis and deep infection, respectively. Partial skin flap losses were encountered in the five fibula osteoseptocutaneous flaps (7.9 percent). Postoperative infection for this one-stage reconstruction was 7.9 percent. Excluding the failed flap and the infected/amputated limb, the primary bony union rate after successful free vascularized bone grafting was 88.5 percent (54 of 61 transfers). The average primary union time was 6.9 months. The overall union rate was 96.7 percent (59 of 61 transfers). The average time to overall union was 8.5 months after surgery. Seven transferred vascularized bones had stress fractures, for a rate of 11.5 percent. Donor-site problems were noted in six fibular flaps, in two iliac flaps, and in one rib flap. The fibular donor-site problems were foot drop in one patient, superficial peroneal nerve palsy in one patient, contracture of the flexor hallucis longus muscle in two patients, and skin necrosis after split-thickness skin grafting in two patients. The iliac flap donor-site problems were temporary flank pain in one patient and lateral thigh numbness in the other. One rib flap transfer patient had pleural fibrosis. Transfer of the appropriate combination of vascularized bone and soft-tissue flap with a one-stage procedure provides complex lower extremity defects with successful functional results that are almost equal to the previously reported microsurgical staged procedures and conventional techniques.  相似文献   

8.
Park C  Roh TS  Chi HS 《Plastic and reconstructive surgery》2003,111(4):1391-7; discussion 1398-9
Total ear reconstruction using the omental free flap technique was performed on five patients who presented with a devascularized temporoparietal region. The main indication for this technique was unavailability of the contralateral temporoparietal fascia in those requesting autogenous auricular reconstruction. There were no microvascular failures in the procedures conducted. In one case there was a partial loss of the transferred omentum, which resulted from an inadequate omental tailoring. A normal convoluted auricle was obtained after multistage debulking operations and meticulous postoperative molding. The average follow-up period was 3.4 years. Final aesthetic results were graded as satisfactory in four patients and poor in one patient.  相似文献   

9.
Augmentation rhinoplasty: observations on 1200 cases   总被引:1,自引:0,他引:1  
Over the past 14 years, from January of 1975 to December of 1988, we have done 1263 aesthetic rhinoplasties using ear cartilage. In the field of augmentation rhinoplasty, many kinds of materials, such as bone, septal cartilage, ear cartilage, and prostheses, were used. In this paper, we limit discussion to our experience with the technique for the augmentation of the nasal dorsum using the ear cartilage and compare this with other materials. Patient ages ranged from 15 to 72 years, with an average of 24 years. Some 95 percent of patients (1199) were female, and only 5 percent (64) were male. Patients were followed for a minimum of 6 months and a maximum of 20 months, with average follow-up only 8 months. Of course, we know that this is a very short follow-up period, but we could not follow patients longer because if they had no complaint about the results at the 6-month visit, they never returned, despite our efforts. Five-hundred and ten of the 1263 patients (40 percent) had been augmented elsewhere, and the silicone prosthesis was already in place. However, 753 patients (60 percent) had no previous operation. For the 510 patients (secondary rhinoplasty patients), too-high or too-large a prosthesis was the largest complaint in number, totaling 378 cases (74 percent), and psychological dissatisfaction, such as pain or an uncomfortable sensation, was the second largest in number, totaling 104 cases (20 percent). For the 753 patients (primary rhinoplasty patients), the main complaint was too-short or too-flat a nose (100 percent).(ABSTRACT TRUNCATED AT 250 WORDS)  相似文献   

10.
目的:探讨耳后头皮瓣急诊即刻修复耳郭部分缺损的可行性与临床效果。方法:对2013年1-12月来我院急诊的7例外伤后耳郭部分缺损的患者(均为男性,年龄22-50岁;其中右耳4例,左耳3例)采用耳后头皮推进瓣即刻修复,以耳郭缺损耳后皮肤及头皮皮肤做推进瓣,将断离的耳郭去皮保留软骨与耳郭断端软骨缝合形成软骨支架,推进皮瓣部分卷曲缝合形成耳轮结构修复耳郭缺损。结果:7例耳郭部分缺损均在急诊环境下即刻修复,耳郭大小和形态满意,颅耳角略变小,随访3~6月耳郭形态稳定。结论:耳后头皮推进瓣卷曲缝合可在急诊条件下即刻修复耳郭部分缺损,具有治疗周期短,一次达到较满意外形的优点,对于无条件行二期手术的患者具有较大意义,其远期效果尚有待进一步随访。  相似文献   

11.
Reconstruction of orbital wall fenestrations with polyglactin 910 film   总被引:1,自引:0,他引:1  
Medial orbital wall fenestrations were created bilaterally in 16 adult cats. The fenestrations were reconstructed with polyglactin 910 film, Dacron-reinforced silicone sheeting, or no implant. Polyglactin 910 was found to be well tolerated in this traumatized area of paranasal sinus bone and soft tissue and was totally absorbed in 4 months. Dacron-reinforced silicone sheeting induced a long-standing acute inflammatory reaction in a similar milieu. Partial osseus replacement of the orbital fenestrations occurred in all animals, but it was accompanied by distortion and erosion in apposition to the silicone sheeting. The study does not answer the question of whether orbital contour will be maintained on a long-term basis adjacent to a pneumatized sinus following reconstruction with a bioabsorbable implant.  相似文献   

12.
Diced cartilage grafts in rhinoplasty surgery   总被引:5,自引:0,他引:5  
The use of diced cartilage grafts in rhinoplasty surgery was recently revived by Erol with the publication of his technique for "Turkish delight" grafts (i.e., diced cartilage grafts wrapped in Surgicel). The present study details the authors' experience with 50 consecutive diced cartilage grafts used in three configurations during a prospective study of 50 primary and secondary aesthetic rhinoplasty procedures performed by the senior author (Daniel). Part I consists of 22 diced cartilage grafts wrapped in Surgicel and placed in the radix (n = 14), radix/upper dorsum (n = 4), and full-length dorsum (n = 4). All grafts were performed adhering meticulously to Erol's technique without modification. This portion of the study was halted abruptly at 4 months because of the unexpected absorption and clinical failure of all diced cartilage grafts wrapped in Surgicel. Subsequently, five patients had revision surgery, and biopsy specimens were taken at the prior grafting site and analyzed histologically. After this clinical failure, part II of the study began, consisting of 20 patients who had diced cartilage grafts wrapped in fascia. The range of applications was comparable: radix (n = 12), radix/dorsum (n = 3), and full-length dorsum (n = 5). Because of our prior practice of overcorrecting by 20 percent with diced cartilage grafts wrapped in Surgicel, we had excessive amounts of material in six of our initial diced cartilage wrapped in fascia radix grafts, but no subsequent grafts. The overcorrections were easily reduced at 6 weeks to 11 months postoperatively using a pituitary rongeur under local anesthesia, and the material was sent for histologic analysis. Minimum 1-year follow-up of all 20 cases has shown maintenance of the grafts without evidence of absorption. Part III of this study comprised eight patients who had diced cartilage grafts without a fascial covering placed throughout the nose, including on the sides of osseocartilaginous rib grafts to the dorsum. At 14 months, there was no evidence that any of these grafts had been absorbed. Histologic analysis of the biopsy specimens from the diced cartilage grafts wrapped in Surgicel showed evidence of fibrosis and lymphocytic infiltrates with small amounts of Surgicel visible on birefringent microscopy. Remnants of cartilage were present but were metabolically inactive on the basis of negative glial fibrillary acidic protein staining. Control specimens of fresh septal cartilage and banked septal cartilage were remarkably similar to each other and demonstrated normal cartilage architecture and cellular activity. The diced cartilage grafts wrapped in fascia showed coalescence of the diced cartilage into a single cartilage mass, with viable cartilage cells and normal metabolic activity on the basis of glial fibrillary acidic protein staining. All of the diced cartilage grafts wrapped in Surgicel absorbed and failed to correct the clinical problem for which they were performed. All of the diced cartilage grafts wrapped in fascia and pure diced cartilage grafts did correct the clinical deformities and appear to have survived completely. The diced cartilage grafts wrapped in fascia placed along the dorsum were distinctly palpable throughout the postoperative period, as was one prior case with a 6-year follow-up. The authors' clinical experience confirms the experimental studies of Yilmaz et al. that question the use of Surgicel for wrapping diced cartilage grafts in clinical rhinoplasty surgery.  相似文献   

13.
The external ear is composed of elastic cartilage. Microtia is a congenital malformation of the external ear that involves a small reduction in size or a complete absence. The aim of tissue engineering is to regenerate tissues and organs clinically implantable based on the utilization of cells and biomaterials. Remnants from microtia represent a source of cells for auricular reconstruction using tissue engineering. To examine the macromolecular architecture of microtia cartilage and behavior of chondrocytes, in order to enrich the knowledge of this type of cartilage as a cell reservoir. Auricular cartilage remnants were obtained from pediatric patients with microtia undergoing reconstructive procedures. Extracellular matrix composition was characterized using immunofluorescence and histological staining methods. Chondrocytes were isolated and expanded in vitro using a mechanical-enzymatic protocol. Chondrocyte phenotype was analyzed using qualitative PCR. Microtia cartilage preserves structural organization similar to healthy elastic cartilage. Extracellular matrix is composed of typical cartilage proteins such as type II collagen, elastin and proteoglycans. Chondrocytes displayed morphological features similar to chondrocytes derived from healthy cartilage, expressing SOX9, COL2 and ELN, thus preserving chondral phenotype. Cell viability was 94.6 % during in vitro expansion. Elastic cartilage from microtia has similar characteristics, both architectural and biochemical to healthy cartilage. We confirmed the suitability of microtia remnant as a reservoir of chondrocytes with potential to be expanded in vitro, maintaining phenotypical features and viability. Microtia remnants are an accessible source of autologous cells for auricular reconstruction using tissue engineering strategies.  相似文献   

14.
Histologic quantitation of the thickness of human tissues that were expanded using silicone expanders showed that the epidermis underwent significant thickening after 5 weeks to 5 months of expansion. The dermis and subcutaneous tissue, on the other hand, were significantly thinner after expansion. Capsules were formed in all 19 patients. The capsule was significantly thickest after 2 to 2.5 months of expansion. Expanded tissues 2 years after cessation of expansion had the same thickness as control tissues and had no remnant fibrous capsule.  相似文献   

15.
G P Maxwell  P A Falcone 《Plastic and reconstructive surgery》1992,89(6):1022-34; discussion 1035-6
Breast reconstruction utilizing smooth-surface silicone tissue expanders is associated with certain problems. Significant capsular contracture may develop around the expander with subsequent expander displacement necessitating repositioning or capsulectomy at the time of expander removal. Infection, pain on expansion, chest-wall compression, and complications related to the remote fill valve also have been reported. A textured-surface silicone expander with an integrated fill valve was developed to address these issues. Eighty-four consecutive breast reconstructions were performed by a single surgeon using textured expanders in 55 patients. Intraexpander pressures were measured during expansion for a group of these patients, and both initial and postinflation pressure readings were quite low (average initial pressure 2.88 mmHg; average postinflation pressure 12.87 mmHg). Eighty-one of the reconstructions have been completed without any expander losses and with minimal complications. Tissue expander volume averaged 580 cc, and the expansion duration averaged 5.6 months. Various types and configurations of permanent implants were used to complete the reconstructions. Eighty-four percent of our patients' completed reconstructions (including nippleareola reconstruction and opposite breast alteration, when necessary) were accomplished with just two procedures. Seventeen long-term adjustable textured-surface expander/implants with anatomic breast shape are still in place, all after only one operation. The inframmary fold has generally been established passively by the expansion process alone. Textured-surface silicone expanders have stayed where positioned, have expanded easily with minimal patient pain, and have created a noncontractile soft-tissue cover for the final implant. The textured expander with an integrated fill valve has simplified breast reconstruction by helping to limit the problems encountered with smooth silicone expanders. The resulting reconstructions have remained soft with a very acceptable aesthetic appearance. The patient office and hospital charts and photographs of this consecutive series were notarized and submitted to the Editor of this Journal, whose biostatistician randomly selected the cases illustrated.  相似文献   

16.
Osorno G 《Plastic and reconstructive surgery》1999,104(7):1951-62; discussion 1963-4
The purpose of this study was to confirm the feasibility of Brent's technique, which was adopted for the treatment of the patients in this series. The author reports his experience with the successful treatment of 110 consecutive patients born with unilateral 95 (86.4 percent) and bilateral 15 (13.6 percent) microtia. The main stages of the reconstruction process are described, from the initial consultation to completion of treatment: reconstruction with sculpted rib cartilage graft, lobule transposition, tragus construction, and construction of the retroauricular sulcus. Minor modifications of Brent's technique for the last surgical stage are described. The author stresses use of autogenous rib cartilage as basic reconstruction material and emphasizes meticulous carving and assembling of frameworks, for which a balanced blend of structural firmness and aesthetic smoothness is essential. The author also describes complications and their management; cases of abandonment of treatment before completion; and difficulties encountered for long-term follow-up. Specially encouraging was the low proportion of short- and long-term complications: one case of hematoma (0.91 percent), one case of infection, two cases of partial skin loss (1.82 percent), and three cases of hypertrophic scars (2.73 percent). Older patients were more prone to abandon treatment before completion of all surgical stages (p = 0.000243) in this series, and this tendency occurred more frequently during the author's early experience in treating microtia patients. Despite the difficulty of the task, this series corroborates the versatility and feasibility of the technique in different geographical areas and population groups.  相似文献   

17.
18.
Isolated syngeneic epiphyseal chondrocytes transplanted into a muscle formed cartilage in which matrix resorption and endochondral ossification began at the end of the second week after transplantation. After 56 days cartilage was converted into an ossicle. In 7-day-old intrarenal transplants, epiphyseal chondrocytes formed nodules of cartilage. In 10-day-old transplants, islands of bone appeared. Slight resorption of cartilage was first noted in 14-day-old transplants of chondrocytes. After eight weeks, transplants contained mainly bone. Intramuscularly transplanted rib chondrocytes formed cartilage which did not ossify. Nevertheless, bone islands appeared in intrarenal transplants of rib chondrocytes. Bone was not formed in allogeneic intrarenal transplants of epiphyseal or rib chondrocytes, but appeared in such transplants in animals immunosuppressed by anti-thymocyte serum and procarbazine. When spleen cells from animals immunized with allogeneic chondrocytes were transferred to immunosuppressed chondrocyte recipients two weeks after intrarenal chondrocyte transplantation, the majority of osteocytes in bone islands was dead. On the other hand, endochondral bone formed in intramuscular transplants of allogenic epiphyseal chondrocytes in immunosuppressed recipients was not damaged by sensitized spleen cells. This suggested that bone in 10- to 14-day-old intrarenal transplants of chondrocytes arose from injected cells and not by induction. To see whether bone was formed by chondrocytes or by some cells contaminating the chondrocyte suspension, the superficial layer of rib cartilage was removed by collagenase digestion and only more central chondrocytes were used for transplantation.(ABSTRACT TRUNCATED AT 250 WORDS)  相似文献   

19.
A two-stage method suitable for reconstructing the lower part of the auricle and using an advancement-rotation flap of expanded cervical and postauricular skin is described. Expander shape and capacity should be selected after careful consideration of available donor sites and the amount of additional tissue required for reconstruction.  相似文献   

20.
Auricular cartilage is soft and plastic at birth, so that congenital auricular deformities can easily be corrected nonsurgically in the early neonatal period. However, as the infant grows older, the flexibility of the auricle decreases. Alar cartilage exhibits the same elasticity as auricular cartilage in the early neonate. When a cleft lip is repaired, typically when the infant is about 3 months of age, it becomes difficult to correct the nasal deformity without surgical intervention. However, based on our experience, there is a fair possibility of correcting the cleft lip nasal deformity with a nonsurgical procedure in the early neonatal period. We performed cleft lip repair accompanied by nonsurgical correction of the nasal deformity in 44 neonates aged 2 to 7 days. A special retainer was placed in the affected nostril for 3 months. Following observation of 31 infants for 12 months or longer, their nasal shapes and symmetry were considered superior to those conventionally operated on at about 3 months of age. Except for one nasal infection, there were no complications.  相似文献   

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