• Archives of Plastic Surgery
• /
• v.47 no.6
• /
• pp.522-527
• /
• 2020

Nasal septoplasty is often required to correct a cosmetic deformity, which is a common reason for patients to present to a plastic surgeon. If nasal septoplasty is insufficient, a residual deformity or nasal obstruction may remain after surgery. Even if the nasal septum is corrected to an appropriate position, nasal congestion could be exacerbated if the turbinate on the other side is not also corrected. Therefore, appropriate treatment is required based on the condition of the turbinates. Herein, we survey recent trends in treatment and review previous research papers on turbinoplasty procedures that can be performed alongside nasal septoplasty.

• Journal of Chest Surgery
• /
• v.23 no.4
• /
• pp.820-824
• /
• 1990

A very early and effective technique of sternal closure by plastic plates was successfully applied to a 7-months-old infant of tetralogy of Fallot in whom the standard closure of sternum was not possible due to massive generalized edema after cardiopulmonary bypass for total correction. This technique provides not only solid but also permanent closure of the sternum so that any early reoperation for closure of sternum and its accompanying risk of infection in many other known methods can be avoided.

• Archives of Craniofacial Surgery
• /
• v.23 no.4
• /
• pp.190-191
• /
• 2022

• Archives of Plastic Surgery
• /
• v.47 no.4
• /
• pp.317-323
• /
• 2020

Background Microtia with constricted features is characterized by a short helical length of variable severity, upper antihelical or scaphal deficiency, and a downfolded upper ear. No consensus has been reached regarding the most appropriate surgical method for this condition. In this study, we aimed to introduce a simple and safe surgical method for the correction or reconstruction of upper helix ear deformities. Methods Between February 2011 and June 2014, eight patients with microtia with constricted upper helix ear deformity underwent reconstruction of the ear deformity. The upper ear helical framework was constructed by carving and curving the eighth rib cartilage harvested from the ipsilateral chest wall, covering this cartilage with a superficial temporal fascial flap, and adjusting the skin graft to align with the ear contour. To evaluate their satisfaction, patients were asked to complete a questionnaire regarding ear shape, symmetry, position, color, and overall outcome scored on a 5-point scale at 12 months postoperatively. Results None of the patients experienced severe complications in the reconstructed ear. The preoperative and postoperative vertical ear length ratios were 0.88 and 1.02, respectively. And the mean patient satisfaction scores for shape, symmetry, position, color, and overall outcome were 4.2, 4.5, 4.7, 4.4, and 4.6 out of 5 points, respectively. All patients expressed a high level of satisfaction at 12 months postoperatively. Conclusions Our technique provides a good alternative method for the reconstruction of moderate constricted upper helix ear deformities in patients who meet the surgical indications with satisfactory outcomes and few complications.

• Archives of Plastic Surgery
• /
• v.46 no.5
• /
• pp.433-440
• /
• 2019

Background Mastectomy in male transgender patients is an important (and often the first) step toward physical manhood. At our department, mastectomies in transgender patients have been performed for several decades. Methods Recorded data were collected and analyzed for all male transgender patients undergoing mastectomy over a period of 24 years at our department. Results In total, 268 gender-reassigning mastectomies were performed. Several different mastectomy techniques (areolar incision, n=172; sub-mammary incision, n=96) were used according to patients' habitus and breast features. Corresponding to algorithms presented in the current literature, certain breast qualities were matched with a particular mastectomy technique. Overall, small breasts with marginal ptosis and good skin elasticity allowed small areolar incisions as a method of access for glandular removal. In contrast, large breasts and those with heavy ptosis or poor skin elasticity often required larger incisions for breast amputation. The secondary correction rate (38%) was high for gender reassignment mastectomy, as is also reflected by data in the current literature. Secondary correction frequently involved revision of chest wall recontouring, suggesting inadequate removal of the mammary tissue, as well as scar revision, which may reflect intense traction during wound healing (36%). Secondary corrections were performed more often after using small areolar incision techniques (48%) than after using large sub-mammary incisions (21%). Conclusions Choosing the suitable mastectomy technique for each patient requires careful individual evaluation of breast features such as size, degree of ptosis, and skin elasticity in order to maximize patient satisfaction and minimize secondary revisions.

• Archives of Plastic Surgery
• /
• v.46 no.2
• /
• pp.152-159
• /
• 2019

Background Nasal framework-supporting procedures such as septal extension grafts, derotation grafts, and columellar strut grafts are usually required in rhinoplasty in Asian patients because the skin envelope is tight, but the nasal framework is small and weak. Autologous materials are preferred, but they have some limitations related to the amount that can be harvested and the frequency of use. Therefore, synthetic materials have been used to overcome these limitations. Methods A total of 114 patients who received a polydioxanone (PDS) plate as an adjuvant material in rhinoplasty from September 2016 to August 2017 were retrospectively investigated. The PDS plate was used as to support the weak framework and to correct the contour of the alar cartilages. The PDS plate was used for reinforcement of columellar struts and septal L-struts, alar cartilage push-down grafts, fixation of septal extension grafts, and correction of alar contour deformities Results Primary and secondary rhinoplasty was performed in 103 and 11 patients, respectively. Clinically, no significant inflammation occurred, but decreased projection of the tip was observed in seven patients and relapse of a short nose was noted in five patients. Conclusions PDS plates have been used in the United States and Europe for more than 10 years to provide a scaffold for the nasal framework. These plates can provide reinforcement to columellar struts, L-struts, and septal extension grafts. In addition, they can assist in deformity correction. Therefore, PDS plates can be considered a good adjuvant material for Asian patients with weak and small nasal cartilage.

• Journal of the Korean Society for Precision Engineering
• /
• v.16 no.4 s.97
• /
• pp.57-63
• /
• 1999

A thin metal plate such as detent spring has the shape deformation due to the phenomenon of spring back after press machining and heat treatment process. This requires the correction of spring shape and force in final inspection process. To do correction of the shape deformation the impact force is manually applied to the bended part of detent spring after measuring the shape deformation and spring force. To develop the automatic spring force correction system, applied force of occurring plastic deformation must be derived from the experimental method. But frequent change of spring shape and material makes it difficult to accomplish the experimental method to be applied. This paper describes the analytical method for detent spring force correction system is to be substituted for the experimental method. FEM(Finite Element Method) is used to find the boundary value between elastic and plastic deformation in the analytical method. To confirm the validity of the analytical method, the result of two methods is compared each other at various applied force conditions. It shows that the simulation result of the analytical method is consistent with the result of the experimental method within the error bound ${\pm}$5%. The result of this paper is useful for development of the automatic spring correction system and reduction of the complicated and tedious processes involved in experimental method.

• Maxillofacial Plastic and Reconstructive Surgery
• /
• v.38
• /
• pp.4.1-4.6
• /
• 2016

Background: Most cases of facial asymmetry involve yaw deformity, and determination of the yaw correction level is very difficult. Methods: We use three-dimensional soft tissue simulation to determine the yaw correction level. This three-dimensional simulation is based on the addition of cephalometric prediction to gradual yaw correction. Optimal yaw correction is determined visually, and an intermediate splint is fabricated with computer-aided design and computer-aided manufacturing. Application of positioning devices and the performance of horseshoe osteotomy are advisable. Results: With this procedure, accurate repositioning of jaws was confirmed and patients obtained fairly good facial contour. Conclusions: This procedure is a promising method for a widespread, predictable treatment of facial asymmetry.

• Archives of Plastic Surgery
• /
• v.40 no.6
• /
• pp.766-772
• /
• 2013

Background Hypospadias is the most common congenital malformation of the male urinary tract, wherein the urethral opening is located proximal to the normal site. Tubularized incised-plate urethroplasty reconstruction, and its efficacy, remains controversial due to the high recurrence rate. This study aimed to evaluate the results of dartos fascia-reinforced flap surgery in hypospadias patients with previous operative complications. Methods Nine patients (mean age, 12 years) who had previous one- or two-stage repair with TIP urethroplasty and suffered from urethrocutaneous fistulas or fissures as complications, underwent dartos fascia-reinforced flap surgery in our clinic between January 2010 and December 2012. The mean postoperative follow-up period was 6 months. Results Among the 9 patients, 7 had complete correction. In all the patients, the maximum uroflow angle was > $45^{\circ}$. No patient complained of an unnatural urinating position. The patients and parents gave very high satisfaction scores (4.7 points) with regard to the appearance of the outer genitalia. Conclusion The dartos fascia-reinforced flap could be a useful and reliable option for complications of hypospadias repair or fissure with the prepuce preserved, given that histological aspects vary and that the possibility of recurrence in the glanular region is high.

• Archives of Plastic Surgery
• /
• v.42 no.6
• /
• pp.721-728
• /
• 2015

Background We conducted this clinical study to compare the efficacy and safety between Neuramis Deep and Restylane in the correction of nasolabial folds. Methods In this phase III, randomized, multi-center, double-masked, matched-pairs, active-controlled trial (ClinicalTrials.gov Identifier: NCT01585220), we evaluated a total of 67 subjects (n=67). All the subjects underwent Neuramis Deep treatment on one side and Restylane on the contralateral side of the bilateral nasolabial folds at a ratio of 1:1. To compare the efficacy of Neuramis Deep and Restylane, we evaluated the Wrinkle Severity Rating Scale scores and those of the Global Aesthetic Improvement Scale. In addition, we compared the safety of Neuramis Deep and Restylane based on adverse events, physical examination, and clinical laboratory tests. Results Neuramis Deep was not inferior in improving the nasolabial folds as compared with Restylane. In addition, there was no significant difference in the efficacy between Neuramis Deep and Restylane. There were no significant differences in safety parameters between Neuramis Deep and Restylane. Conclusions In conclusion, our results indicate that Neuramis Deep may be a safe, effective material for improving the nasolabial folds. However, further studies are warranted to compare the tolerability of Neuramis Deep and Restylane based on histopathologic findings.