首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 359 毫秒
1.
To correct the secondary cleft lip nose deformity in Oriental patients, many alar cartilage mobilization and suspension techniques have been developed. However, these techniques have critical limitations. One of the limitations is the suspension vector, and another is suspension power. The suspension vector is from inferior to superior and from the deformed alar cartilage to the normal alar cartilage. Thus, the vector is not suitable for normal nasal tip projection. The suspension power is not satisfactory because Oriental people have underdeveloped, thin alar cartilages and thick skin. So, the suspended, deformed alar cartilage may relapse and pull the normal alar cartilage to the deformed side. To overcome these limitations, the authors use the cantilever calvarial bone graft for tip projection; it also serves as a strong, rigid framework for cartilage and soft-tissue suspension. Using these techniques, the authors can create normal nasal tip projection and a normal looking nasal aperture.  相似文献   

2.
Primary correction of the unilateral cleft lip nose: a 15-year experience   总被引:2,自引:0,他引:2  
This paper reviews a 15-year personal experience based on 400 unilateral cleft nasal deformities that were reconstructed using a method that repositions the alar cartilage by freeing it from the skin and lining and shifts it to a new position. The rotation-advancement lip procedure facilitates the exposure and approach to the nasal reconstruction. The nasal soft tissues are transected from the skeletal base, reshaped, repositioned, and secured by using temporary stent sutures that readapt the alar cartilage, skin, and lining. The nasal floor is closed and the ala base is positioned to match the normal side. Good subsequent growth with maintenance of the reconstruction has been noted in this series. The repair does not directly expose or suture the alar cartilage. Improvement in the cleft nasal deformity is noted in 80 percent of the cases. Twenty percent require additional techniques to achieve the desired symmetry. This method has been used by the author as his primary unilateral cleft nasal repair and has been taught to residents and fellows under his direction with good results. This technique eliminates the severe cleft nasal deformity seen in many secondary cases.  相似文献   

3.
One of the problems in the correction of the unilateral cleft lip nasal deformity is the alar web deformity on the mediosuperior side of the nostril. A number of methods for the correction of the alar web deformity have been introduced, but no single procedure has been identified as the standard. In this report, the incision line of the open rhinoplasty was modified and the alar web deformity was corrected by using an incision and closure. Open rhinoplasty with the asymmetric incision was performed on 18 patients with unilateral cleft lip nasal deformity. The incision line used in the normal side was the usual intranasal rim incision line and that used for the columella was the transcolumella incision line. For the cleft side, an intranasal rim incision line was plotted after the rim was lifted upward with forceps to achieve symmetry of the nasal tip. After removal of the forceps, the incision line of the cleft side was displaced outside the nostril. After such an incision, the alar cartilage mobilization and suspension were performed with or without the conchal cartilage graft. All patients used nasal retainers for 6 months after the procedures. So far, satisfactory results have been obtained with the modification of the incision line for open rhinoplasty. This method is unique in designing the incision line, and its procedure is rather simple. The postoperative follow-up period has been 12 to 26 months. A long-term follow-up is still needed, especially in growing children.  相似文献   

4.
Anatomic studies performed on the noses of 15 cadavers examined the alar groove, alar lobule, and lower lateral crus areas both microscopically and on gross appearance to determine what effect these structures have on overall nasal appearance. In contrast to the findings of previous studies, the authors found the alar lobule to be an area in which dermis is interdigitated with muscle throughout and up to the alar rim. The anteroposterior lengths of the lower lateral crura were again seen to vary in length, presence or absence of accessory cartilages, and shape. Neither corrugation of the posterior elongation nor overlap of the accessory cartilages of the lower lateral cartilage had an effect on phenotype; sharp angles formed by the cartilage were blunted by the layer of fibrofatty muscular tissue between the cartilage and the skin. The alar groove, which lies at the junction of the lower lateral crus (medially) and the alar lobule (laterally), is defined not as much by a muscular attachment between the perichondrium of the lower lateral cartilage and the vestibular mucosa as by a bulging in the fatty layer on one side of the groove (within the cheek, lateral nasal wall, and nasal tip) and a relative paucity of fatty tissue on its other side (within the alar lobule).  相似文献   

5.
The onlay cartilage grafting technique is described for treatment of unilateral or bilateral cleft lip nasal deformities. The alar cartilage is exposed through rim and intercartilagenous incisions. The cephalic half of the alar cartilage is excised, similar to the technique of traditional tip rhinoplasty. The harvested cartilage is applied to the intact caudal cartilage in layered fashion and secured with absorbable sutures. If necessary, successive layers may be added. These grafts provide a sturdy, yet delicate framework for a more normal appearing alar rim. We have performed this procedure on 16 patients, ages 10 to 41. Follow-up intervals range from 13 to 40 months, with a mean of 19 months. Results have been rated good-to-excellent by patients and surgeons. There has been no recurrence of the deformity. The only complication has been one nasal vestibule synechia.  相似文献   

6.
Menick FJ 《Plastic and reconstructive surgery》1999,104(7):2187-98; discussion 2199-2201
Most techniques for secondary rhinoplasty assume that useful residual remnants of the tip cartilages remain, but frequently the alar cartilages are missing--unilaterally, bilaterally, completely, or incompletely--with loss of the lateral crura, middle crura, and parts of the medial crura. In such severe cases, excision of scar tissue and the residual alar remnants and their replacement with nonanatomic tip grafts have been recommended. Multiple solid, bruised, or crushed cartilage fragments are positioned in a closed pocket or solid shield-shaped grafts are fixed with sutures during an open rhinoplasty. These onlay filler grafts only increase tip projection and definition. Associated tip abnormalities (alar rim notching, columellar retraction, nostril distortion) are not addressed. Problems with graft visibility, an unnatural appearance, or malposition have been noted. Fortunately, techniques useful in reconstructive rhinoplasty can be applied to severe cosmetic secondary deformities. Anatomic cartilage replacements similar in shape, bulk, and position to normal alar cartilages can be fashioned from septal, ear, and rib cartilage, fixed to the residual medial crura and/or a columellar strut, and bent backward to restore the normal skeletal framework of the tip. During an open rhinoplasty, a fabricated and rigid framework is designed to replace the missing medial, middle, or lateral crus of one or both alar cartilages. The entire alar tripod is recreated. These anatomic alar cartilage reconstructive grafts create tip definition and projection, fill the lobule and restore the expected lateral convexity, position the columella and establish columellar length, secure and position the alar rim, and brace the external valve against collapse, support the vestibular lining, and restore a nostril shape. The anatomic form and function of the nasal tip is restored. This technique is recommended when alar cartilages are significantly destroyed or absent in secondary or reconstructive rhinoplasty and the alar remnants are insufficient for repair. Anatomically designed alar cartilage replacements allow an aesthetically structured skeleton to contour the overlying skin envelope. Problems with displacement are minimized by graft fixation. Graft visibility is used to the surgeon's advantage. A rigidly supported framework with a nasal shape can mold a covering forehead flap or the scarred tip skin of a secondary rhinoplasty and create a result that may approach normal. Anatomic alar cartilage reconstructions were used in eight reconstructive and eight secondary rhinoplasties in the last 5 years. Their use in the repair of postrhinoplasty deformities is emphasized.  相似文献   

7.
There is usually some relapse in position of the alar cartilage after primary repair of unilateral cleft lip. Therefore, preoperative or postoperative external splinting has been recommended to supplement either closed or open suspension of the alar cartilage. The authors present a method using a resorbable internal nostril splint to shield the positioned alar cartilage from deformational forces caused by scar, and thus avoiding the problems associated with external splinting. An internal nasal splint was placed in 15 infants during repair of unilateral complete cleft lip and nasal deformity. The nasal morphology was compared with that of 15 control patients who had the same nasolabial procedure without internal splinting. Average follow-up time was 20.4 months (range, 4 to 30 months). Photogrammetric analysis showed that asymmetry of the alar contours averaged 8.6 percent in the splinted patients, as compared with 23 percent for controls (p <0.01). Thus, alar asymmetry was decreased two-thirds in the splinted group. An internal resorbable nasal splint is an adjunct to open alar suspension in primary repair of the unilateral cleft lip nasal deformity. An internal nasal splint protects the corrected alar cartilage longer than an external splint and eliminates drawbacks, such as necrosis, cutaneous depression of the nostril sill, and patient noncompliance. This strategy of temporary internal support of healing cartilage has other applications.  相似文献   

8.
The fragile alar rims are complex structures whose specialized and supportive skin ensures the competence of the external valves and the patency of the inlets to the nasal airways. A chart review was performed of 100 consecutive secondary or tertiary rhinoplasty patients in whom the author had placed composite grafts before February 1999. Follow-up continued for at least 12 months. In 94 percent of the patients, composite grafts were harvested from the cymba conchae by removing the cartilage with its adherent anterior skin. In 6 percent of the patients, independently indicated alar wedges supplied the grafts. Six patients required secondary procedures to thin the alar rims, but such revisions have not been necessary since primary contouring of the cartilaginous graft component was instituted. Three auricular donor-site complications (one keloid, two thickened graft contours) were successfully revised through office procedures. Prior cosmetic rhinoplasty in a patient with normal alar cartilage anatomy exceeded all other etiologies as the cause of the deformity for which composite grafts were indicated (50 percent). The second most common etiology was deformity from prior rhinoplasty in a patient with alar cartilage malposition (33 percent of patients). Congenital deformities (7 percent of patients), trauma (6 percent), and prior tumor ablation (4 percent) comprised the remaining etiologies. Composite grafts were used most frequently to correct alar notching or asymmetry in rim height (43 percent of patients) or to provide an increase in apparent or real nasal length (28 percent). External valvular incompetence (14 percent of patients), nostril or vestibular stenosis (11 percent), or combined vestibular stenosis and lateral alar wall collapse (4 percent) were less common indications. Most composite grafts were oriented in the coronal plane (parallel to the alar rims). However, nostril or vestibular stenosis was corrected by sagittally placed composite grafts, and a third orientation (axial plane), to the author's knowledge not described previously, was used in patients with combined nostril stenoses and flattening of the alar walls. In this secondary rhinoplasty series, iatrogenic alar rim deformities or stenoses following cosmetic rhinoplasty dominated other causes requiring composite graft reconstruction (83 percent of patients). Of these 83 patients, 39.7 percent had preexisting alar cartilage malpositions, further supporting the importance of making accurate anatomical diagnosis part of every preoperative rhinoplasty plan.  相似文献   

9.
Neu BR 《Plastic and reconstructive surgery》2002,109(2):768-79; discussion 780-2
Alar cartilage losses and alar length discrepancies present problems in nasal tip support, contour, and symmetry. The true extent of the cartilage defect is often not apparent until the time of surgery. This article examines a problem-oriented and segmental open approach to such deformities. It is based on the size of the defect, its location within the dome and lateral crus, and the presence or absence of alar collapse. The defects are classified as major when there is a total or near total loss of the lateral crus, moderate when more than 5 mm is involved, and minor when less than 5 mm is affected. In major defects, a segmental reconstruction of the nasal tip cartilages is undertaken. It consists of a septal graft for columellar support and a conchal shield graft and umbrella graft for nasal tip contour. The whole length of the lateral crus is not reconstructed unless alar collapse is present. In moderate cartilage defects, usually seen laterally in secondary rhinoplasties, the remaining central dome segments are remodeled with shaping sutures. Moderate cartilage length discrepancies, as seen in unilateral cleft lip noses, are equalized through reversed alar rotations. The short crus is rotated laterally, taking length from the medial crus, and the long crus is rotated medially, with the excess advanced into the medial crural footplate. Additional shortening of the long crus can be achieved through cartilage division and advancement. The balanced alar units are then raised with tip projection-vector sutures, and onlay grafts are added if required. In minor cartilage losses, symmetry is usually obtained by shortening the opposite uninjured crus. A total of 33 patients are examined in this review. The average follow-up is 14 months. An improvement in nasal tip shape and support was achieved in all patients.  相似文献   

10.
目的:总结基于鼻翼软骨三脚架结构的改建技术在鼻尖综合整形术中的应用经验。方法:从2012年09月到2015年02月间,共84例求美者在我院进行初次鼻尖综合整形术。3例为男性,81例为女性。年龄20-45岁,平均年龄31.7岁。其中鼻头肥大伴鼻背低平65例,行鼻翼软骨缝合+鼻翼软骨切除+鼻假体+自体软骨帽状移植术;鼻头肥大、鼻背低平伴鼻小柱短小19例,行自体软骨鼻小柱支撑+鼻翼软骨切除+鼻翼软骨缝合+鼻假体植入+自体软骨帽状移植术。结果:84例求美者术后随访1个月-2年,除1例病例鼻头过于肥大,鼻尖形态改善不明显以外,其余求美者鼻额角及鼻尖角度及均较术前有明显改善,鼻小柱短小组的鼻小柱长度也较术前有明显改善。所有病例切口瘢痕均不明显,无明显并发症出现。结论:针对不同鼻翼软骨发育条件下的病人,个性化的应用鼻翼软骨三脚架结构改建的鼻尖综合整形术具有较好的临床效果,须根据不同病人特点选用。  相似文献   

11.
Alar disharmony is one of the most common abnormalities observed after a rhinoplasty. This article describes three classes in addition to Gunter's classifications of alar/columella deformities, which include concave ala, convex ala caused by convex lateral crus, and convex ala caused by thick alar tissues. These deformities are best visualized from the basilar view. The different surgical techniques for correction of true alar abnormalities are presented. The alar convexity, when it is the result of a misshapen cartilage, is corrected using a lateral crura spanning suture, posterior transection of the lateral crura, or transdomal suture. A thick ala, resulting in convexity, can be thinned through either a direct incision on the ala or an incision in the alar base. A lateral crura strut, an onlay graft, or a rim graft eliminates the concavity. For a slight retraction, an alar rim cartilage graft is an optimal choice. For significant alar retractions, the author's preferred technique is an internal V-to-Y advancement, which is described in detail. An elliptical excision of the alar lining will effectively correct the hanging ala. These techniques have been used to correct alar disharmonies on 58 patients. One patient from the V-Y advancement group exhibited a small area of alar necrosis, and two early patients demonstrated an overcorrection; all were easily resolved with revision surgery. By carefully identifying nasal base and alar abnormalities, harmony can be established to correct an undesirable appearance.  相似文献   

12.
A technique for the lowering of the alar rim is presented. The indications for this technique, originally presented by Meyer and Kesselring, have been expanded to other related nasal deformities, including the high-arched nostril, the asymmetrical nostril, the Mestizo nose, and the hanging columella, in which the surgeon feels that total nasal length should not be sacrificed. The technique consists of an incision parallel to the alar rim and an unfurling of the vestibular mucosa caudally. A cartilage graft from the septum, lowering lateral cartilage, or other source is placed between the two layers at the newly proposed alar height. Through-and-through sutures hold the graft and alar rim in place.  相似文献   

13.
Primary correction of the unilateral cleft nasal deformity   总被引:1,自引:0,他引:1  
An 18-year experience with the management of the unilateral cleft nasal deformity in 1200 patients is presented. A primary cleft nasal correction was performed at the time of lip repair in infancy; a secondary rhinoplasty was done in adolescence after nasal growth was complete. The technical details of the authors' primary cleft nasal correction are described. Exposure was obtained through the incisions of the rotation-advancement design. The cartilaginous framework was widely undermined from the skin envelope. The nasal lining was released from the piriform aperture, and a new maxillary platform was created on the cleft side by rotating a "muscular roll" underneath the cleft nasal ala. The alar web was then managed by using a mattress suture running from the web cartilage to the facial musculature. In 60 percent of cases, these maneuvers were sufficient to produce symmetrical dome projection and nostril symmetry. In the other 40 percent, characterized by more severe hypoplasia of the cleft lower lateral cartilage, an inverted U infracartilaginous incision and an alar dome supporting suture (Tajima) to the contralateral upper cartilage were used. Residual dorsal hooding of the lower lateral cartilage was most effectively managed with this suture. This primary approach to the cleft nasal deformity permits more balanced growth and development of the ala and domal complex. Some of the psychological trauma of the early school years may be avoided. Also, because of the early repositioning of the cleft nasal cartilages, the deformity addressed at the time of the adult rhinoplasty is less severe and more amenable to an optimal final result.  相似文献   

14.
Two hundred and forty patients who underwent a corrective rhinoplasty have been presented. Of these, 224 patients (93.3 percent) had a cartilage repositioning procedure in which the alar cartilages were only undermined and repositioned, and 16 patients (6.7 percent) had a cartilage resection procedure. The techniques and indications for both procedures are described and discussed. The results obtained in this series of patients indicate that cartilage repositioning is an effective and reliable procedure to refine and reshape the nasal tip. Cartilage resection is less reliable and should be reserved for a few selected patients with specific indications. Indiscriminate resection of the lower alar cartilage is neither warranted nor wise.  相似文献   

15.
The majority of patients with a unilateral cleft nasal deformity still benefit from additional nasal surgery in their teenage years, despite having undergone a primary nasal repair. However, the secondary nasal deformity of these patients stands in sharp contrast to those of children who have not benefited from primary repair. The authors' algorithm for the definitive correction of these secondary deformities considers the differences in these two patient groups and defines their indications for rib cartilage grafts and their method of using septal and ear cartilage in the repair. Balancing the muscle forces on the septum and alar cartilage is emphasized in both the primary and secondary repair. Both cartilage malposition and hypoplasia of the lower lateral cartilage complex have been identified as factors contributing to the deformity.  相似文献   

16.
An imbalance between the alar rim and the columella border can be a disturbing aesthetic deformity. If the cause is a pseudohanging columella, the therapy should be directed to the alar rims. When the deformity is a true hanging columella with unusually wide medial crural cartilages, balance can be restored by excising a C-shaped crescent of cartilage from the cranial border of the medial crura of the alar cartilages in a direct approach. This condition was present in approximately 15 percent of the patients reviewed. The treatment of a true hanging columella adds a subtle beneficial enhancement to the results of a rhinoplasty. The authors describe a simplified diagnostic method and present their experience treating the true hanging columella using a modified "direct approach" through a closed endonasal rhinoplasty.  相似文献   

17.
A new technique in nasal-tip reduction surgery.   总被引:1,自引:0,他引:1  
R A Smith  E T Smith 《Plastic and reconstructive surgery》2001,108(6):1798-804; discussion 1805-7
This article presents a technique for the reduction of the overprojected nasal tip with a proportional reduction of the nostril-margin circumference. To achieve these reductions, a modified open rhinoplasty technique is used, which is unique in that it involves the total transection of the columella through the medial crura of the alar cartilage. The alar cartilage is raised with the flap.The technique was first developed and introduced by the senior author (R.A.S.) 25 years ago and has since been refined through the execution of several thousand rhinoplasties. The results continue to be consistent and pleasing from both the patients' and the surgeon's points of view.  相似文献   

18.
C B Cutting  J Bardach  R Pang 《Plastic and reconstructive surgery》1989,84(3):409-17; discussion 418-9
The secondary nasal skin envelope asymmetries were studied after unilateral cleft lip repair using the original (obsolete) rotation-advancement (Millard I) and the triangular flap techniques (Bardach's modification). Secondary correction of the nasal deformity was not performed in either group. Our findings indicated that in both groups, vertical asymmetries of the nasal skin envelope were similar. The alar dome on the cleft side was depressed, the columella was shorter on the cleft side, and there was hooding at the nostril apex. The principal difference between the two lip repairs was observed in the horizontal dimension of the nasal skin envelope. The position of the alar base was more normal following the Millard I repair, while the triangular flap repair left the alar base laterally displaced. When considered together with flattening of the cleft alar dome, a horizontal skin-envelope deficiency from middome to lateral alar crease was produced in the Millard I group. More lateral positioning of the alar base after the triangular flap technique minimized this horizontal skin deficiency. The triangular flap technique produced a secondary nasal deformity that looked worse but was easier to correct. The clinical implications of these findings are discussed.  相似文献   

19.
The secondary deformity of the unilateral cleft lip nose has many components. One is the dorsal dislocation of the lateral crus of the alar cartilage. We used a conchal composite graft positioned between the piriform aperture and the lateral crus and the upper lateral cartilage to correct this dislocation in nine patients. We believe that this graft is effective because it elevates the lateral crus of the alar cartilage off the depressed piriform aperture. This technique is very simple to perform, and it is easy to achieve nasal symmetry. Our results have been quite satisfactory, with no recurrence of dorsal dislocation. The donor site was covered by a subcutaneous pedicled flap from the cephaloauricular sulcus, leaving an inconspicuous deformity.  相似文献   

20.
Despite of progresses in tissue engineering based on cell/scaffold strategy, uneven cell distribution as well as tissue formation in the scaffold, limited cell seeding efficiency and inflammatory reaction triggered by the degradation of scaffold remain problems to be resolved. In this study, we proposed a novel cell-macroaggregate cultivation system, and explored a feasible strategy to construct three-dimensional cartilage tissue with shape of human nasal alar by using cell macroaggregate. Isolated chondrocytes was cultured at high density to form a monolayer chondrocyte sheet as well as expanded for seeding on the sheet to produce mechanically operable cell macroaggregate. Chondrocyte macroaggregates were then fabricated into transplants with shape of nasal alar by using Internal support or External scaffold techniques; results of in vivo chondrogenesis were investigated in immunocompetent animal. Chondrocyte macroaggregates presented long survival time and good viability; constructs fabricated using both techniques can develop into tissues with characteristic structure of native cartilage, glycosaminoglycans as well as type II collagen were highly produced in the ECM of engineered cartilages. By placing hyaluronan ester film as Internal support, the predetermined shape of the chondrocyte macroaggregate can be well maintained. In contrast, due to the poor mechanical stability of grafts fabricated in External scaffold group, obvious deformation occurred in harvested specimens. The experiment proved the usefulness of chondrocyte macroaggregate in cartilage regeneration, and provided a new strategy to engineer cartilage with special shape by using cell macroaggregate/biodegradable support.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号