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Wilde CL, Jiang K, Lee S, Ezra DG. The Posthyaluronidase Syndrome: Dosing Strategies for Hyaluronidase in the Dissolving of Facial Filler and Independent Predictors of Poor Outcomes. PLASTIC AND RECONSTRUCTIVE SURGERY-GLOBAL OPEN 2024; 12:e5765. [PMID: 38655103 PMCID: PMC11037726 DOI: 10.1097/gox.0000000000005765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 03/06/2024] [Indexed: 04/26/2024]
Abstract
Background Hyaluronic acid dermal fillers are used extensively in periocular aesthetic medicine, and the incidence of filler-related complications is increasing. This study aimed to investigate the optimal dosing strategy for hyaluronidase and to identify predictors of poor outcomes. Methods We performed a retrospective review of 157 orbits of 90 patients treated with hyaluronidase over a 4-year period. Demographic data, indication, and details of hyaluronidase treatment and outcomes were recorded. Results The primary indication for dissolving filler was swelling in 52%, lumpiness in 20%, and before surgical blepharoplasty in 17%. The most frequently used hyaluronidase concentration was 150 U per mL in 66%, followed by 75 U per mL in 31%, 37.5 U per mL in 3%, and 100 U per mL in 1%. Outcomes were characterized as follows: 59% with a satisfactory result; 24% as insufficient treatment requiring further hyaluronidase; and 18% complaining of facial changes such as hollowing, indicating a post hyaluronidase syndrome. There was no statistical difference in outcomes between the 75 and 150 U per mL dosage groups (P = 0.625). A significant correlation was identified between posthyaluronidase syndrome and duration of filler in situ (P = 0.00019) and volume of filler (P = 0.000017). Conclusions The posthyaluronidase syndrome may be related to previous filler volume and duration, rather than the concentration or dose of hyaluronidase used. All patients should be informed about the risks of adverse effects after hyaluronidase treatment; patients with longer histories of filler use and higher total volumes should be advised of the increased risk.
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Affiliation(s)
- Caroline L. Wilde
- From Moorfields Eye Hospital NHS Trust, London, United Kingdom
- The Ezra Clinic, London, United Kingdom
| | - Kailun Jiang
- From Moorfields Eye Hospital NHS Trust, London, United Kingdom
| | - Sieun Lee
- Mental Health and Clinical Neuroscience, School of Medicine, University of Nottingham, Nottingham, United Kingdom
| | - Daniel G. Ezra
- From Moorfields Eye Hospital NHS Trust, London, United Kingdom
- The Ezra Clinic, London, United Kingdom
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Kim HAJ, Namavarian A, Khan U, Levy BB, Ziai H, Talei B, Gantous A. Reconstructive Techniques in Pediatric Congenital Microtia: A Systematic Review and Meta-analysis. Facial Plast Surg 2024. [PMID: 38232751 DOI: 10.1055/a-2247-5109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2024] Open
Abstract
Autografts and allografts are commonly used in microtia reconstruction. We aimed to systematically review and compare these reconstructive materials in pediatric congenital microtia reconstruction. A systematic review of the literature was performed. MEDLINE, Embase, PubMed, Web of Science, and CINAHL databases were searched for original studies on congenital microtia reconstruction in pediatric patients since database inception to 2021. Microtia grade was stratified as high or low. Meta-analysis of pooled proportions and continuous variables was performed using inverse variance weighting with a random effects model to compare between the autograft and allograft groups. Sixty-eight studies with a total of 5,546 patients used autografts (n = 5,382) or alloplastic implants (n = 164). Four other studies used prosthesis, cadaveric homografts, or tissue engineering. The allograft group was on average younger than the autograft group (8.4 vs. 11.1 years). There were no syndromic patients in the allograft group, compared to 43% in the autograft group. Patients treated with allografts had higher microtia grade than those treated with autograft (98 vs. 72%). Autografts were more commonly utilized by plastic surgeons and allografts by otolaryngologists (95 vs. 38%). No autografts and 41% of allografts were done concurrently with atresiaplasty or bone conduction implant. Satisfaction rates were similarly high (>90%) with similar complication rates (<10%). Microtia reconstruction using autografts and allografts had similar satisfaction and complication rates. Allografts were preferred for younger patients and concurrent hearing restoration. Further large-scale studies are required to evaluate the long-term efficacy of these reconstructive techniques.
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Affiliation(s)
- Hugh Andrew Jinwook Kim
- Division of Facial Plastic and Reconstructive Surgery, Department of Otolaryngology - Head and Neck Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Amirpouyan Namavarian
- Division of Facial Plastic and Reconstructive Surgery, Department of Otolaryngology - Head and Neck Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Urooj Khan
- Division of Facial Plastic and Reconstructive Surgery, Department of Otolaryngology - Head and Neck Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Ben B Levy
- Division of Facial Plastic and Reconstructive Surgery, Department of Otolaryngology - Head and Neck Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Hedyeh Ziai
- Division of Facial Plastic and Reconstructive Surgery, Department of Otolaryngology - Head and Neck Surgery, University of Toronto, Toronto, Ontario, Canada
- Beverly Hills Center for Facial Plastic Surgery, Beverly Hills, California
| | - Ben Talei
- Beverly Hills Center for Facial Plastic Surgery, Beverly Hills, California
| | - Andres Gantous
- Division of Facial Plastic and Reconstructive Surgery, Department of Otolaryngology - Head and Neck Surgery, University of Toronto, Toronto, Ontario, Canada
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Selvaprithiviraj V, Vaquette C, Ivanovski S. Hydrogel based soft tissue expanders for orodental reconstruction. Acta Biomater 2023; 172:53-66. [PMID: 37866723 DOI: 10.1016/j.actbio.2023.10.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 10/10/2023] [Accepted: 10/17/2023] [Indexed: 10/24/2023]
Abstract
Tension-free flap closure to prevent soft tissue dehiscence is a prerequisite for successful bone augmentation in orodental reconstructive surgery. Since soft tissue contour follows the underlying jaw bony architecture, resorption of alveolar (jaw) bone limits the availability of soft tissue for wound closure following major bone reconstruction, required to facilitate oral rehabilitation with endosseous dental implants following tooth loss. Although there are several clinical procedures to increase soft tissue volume, these techniques are complicated and technically demanding. Soft tissue expansion, an established technique in reconstructive surgery, is an ideal alternative to generate surplus soft tissue prior to bone augmentation and dental implant placement. Increase in tissue volume can be achieved by using soft tissue expanders (STEs). Contemporary STEs have evolved from silicone balloons to osmotically inflating hydrogel-based systems. Here, we provide an overview of STEs in clinical oral surgery, outline the current research in STEs, and an update on recent clinical trials as well as the associated complications. Also, the mechanism governing soft tissue expansion and the critical factors that control the expansion process are covered. Design considerations for STEs for intraoral applications are given particular attention. Finally, we present our perspectives on utilization of minimally invasive methods to administer STEs for orodental applications. STATEMENT OF SIGNIFICANCE: Soft tissue expansion is required for a range of reconstructive applications and more notably in regenerative dentistry for vertical bone augmentation. This review describes the commercially available soft tissue expanders along with the latest systems being currently developed. This review insightfully discusses the biological and physical mechanisms leading to soft tissue expansion and critically assesses the design criteria of soft tissue expanders. A particular focus is given on the development of a new generation of hydrogel-based soft tissue expanders; their chemistry and required physical properties for tissue expansion is described and the obstacles towards clinical translations are identified. Finally, the review elaborates on promising minimally invasive injectable hydrogel-based tissue expanders and highlights the beneficial features of these systems.
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Affiliation(s)
- Vignesh Selvaprithiviraj
- The University of Queensland, School of Dentistry, Centre for Oral Regeneration, Reconstruction and Rehabilitation (COR3), Herston, QLD, Australia
| | - Cedryck Vaquette
- The University of Queensland, School of Dentistry, Centre for Oral Regeneration, Reconstruction and Rehabilitation (COR3), Herston, QLD, Australia; Herston Biofabrication Institute, Metro North Hospital and Health Service, Brisbane, QLD, Australia, S. Ivanovski, School of Dentistry, University of Queensland, 288 Herston Rd, Herston, Brisbane, QLD 4072, Australia
| | - Saso Ivanovski
- The University of Queensland, School of Dentistry, Centre for Oral Regeneration, Reconstruction and Rehabilitation (COR3), Herston, QLD, Australia.
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Gümüş N, Pinegöz E, Tuncel F. Hyaluronic acid dermal filler injection increases the survival of rat dorsal skin flaps. EUROPEAN JOURNAL OF PLASTIC SURGERY 2022. [DOI: 10.1007/s00238-022-02004-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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5
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Hu Y, Liu Z, Wang Y, Yu Q, Gong Y, Diao H, Jin Y, Zhang S, Shi Y. Efficacy and safety of two hyaluronic acid fillers with different injection depths for the correction of moderate-to-severe nasolabial folds: A 52-week, prospective, randomized, double-blinded study in a Chinese population. J Cosmet Dermatol 2022; 21:940-948. [PMID: 35020250 DOI: 10.1111/jocd.14744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 12/17/2021] [Accepted: 12/29/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND Hyaluronic acid (HA) fillers are known to be effective for the correction of facial wrinkles and folds, but there is no clinical study that compares the efficacy of small-to-medium-particle HA fillers and large-particle HA fillers for the correction of nasolabial folds (NLFs). Moreover, injection depth also plays an important role in the correction of NLFs as well as improvement of facial aesthetics. OBJECTIVES To assess the efficacy, safety, and durability of a small-to-medium-particle HA filler, Restylane, and a large-particle HA filler, Yishumei, as well as the effect of injection depth in the correction of moderate-to-severe NLFs and facial aesthetics in a Chinese population. METHODS This 52-week, prospective, randomized, double-blind study enrolled 100 participants with moderate-to-severe NLFs. The participants were randomized to receive either Restylane (Group A) or Yishumei (Group B). Group A and Group B were further randomly divided into a superficial injection group (Group A1 & B1) and a deep injection group (Group A2&B2) according to injection depth. Improvement in the Wrinkle Severity Rating Scale (WSRS) score and Global Aesthetic Improvement Scale (GAIS) and participants' satisfaction were evaluated as endpoints. All adverse events were monitored throughout the study. RESULTS The treatments were well tolerated by all the participants. All four groups showed a reduction in their mean WSRS scores and GAIS scores by week 12. At week 24, the WSRS and GAIS scores did not change in Group A1 and A2, while participants in Group B1 and Group B2 had higher WSRS and GAIS scores than those in the previous weeks. By week 52, the WSRS scores in all the groups returned to almost baseline levels. The mean FACE-Q scores increased compared with the baseline scores in all groups through week 24. Most participants were satisfied with their treatment, and no meaningful differences were found between the fillers in terms of participant satisfaction. The most common adverse events were swelling, redness, and tenderness at the injection site, but they resolved spontaneously without treatment. CONCLUSION The two HA fillers had good therapeutic effect on NLFs in the early stage of treatment, but Restylane had a more prolonged effect. Moreover, compared with the superficial injection, the deep injection provided slight midface lifting and improved facial aesthetics.
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Affiliation(s)
- Yifan Hu
- Department of Dermatology, Shanghai Skin Disease Hospital, Tongji University School of Medicine, Shanghai, China.,Department of Dermatology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China.,Institute of Psoriasis, Tongji University School of Medicine, Shanghai, China
| | - Zhiyu Liu
- Department of Dermatology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China.,Department of Jing'an Medical Beauty Clinic, Starnic Aesthetic Group, Shanghai, China
| | - Yao Wang
- Department of Dermatology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China.,Institute of Psoriasis, Tongji University School of Medicine, Shanghai, China
| | - Qian Yu
- Department of Dermatology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China.,Institute of Psoriasis, Tongji University School of Medicine, Shanghai, China
| | - Yu Gong
- Department of Dermatology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China.,Institute of Psoriasis, Tongji University School of Medicine, Shanghai, China
| | - Hongyue Diao
- Department of Dermatology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China.,Institute of Psoriasis, Tongji University School of Medicine, Shanghai, China
| | - Yi Jin
- Department of Outpatient Office, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Shuqin Zhang
- Department of Dermatology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China.,Institute of Psoriasis, Tongji University School of Medicine, Shanghai, China
| | - Yuling Shi
- Department of Dermatology, Shanghai Skin Disease Hospital, Tongji University School of Medicine, Shanghai, China.,Department of Dermatology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China.,Institute of Psoriasis, Tongji University School of Medicine, Shanghai, China
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Caruso KA, Reynolds BD, Whittaker CJ, Smith JS, Irving WM, McCarthy PG, Hamzianpour N, Boo G. Use of subdermal hyaluronic acid injections and a free labial mucocutaneous graft for the repair of feline eyelid agenesis. Vet Ophthalmol 2021; 25:209-218. [PMID: 34902225 DOI: 10.1111/vop.12963] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Revised: 11/30/2021] [Accepted: 12/02/2021] [Indexed: 12/01/2022]
Abstract
OBJECTIVE To describe a technique to repair feline eyelid agenesis using a hyaluronic acid (HA) subdermal filler injection to allow for acute soft tissue expansion, followed by a free labial mucocutaneous graft. MATERIALS AND METHODS Thirty-nine colobomatous eyelids in 24 feline patients with secondary keratitis were recruited to the study group. RESULTS Keratitis and trichiasis were markedly resolved in 27/39 (69.2%) eyelids after a single procedure. Post-operative HA subdermal filler injections were required to resolve 5/39 (12.8%) eyelids that had mild post-operative trichiasis, and 1/39 (2.5%) eyelids that had post-operative lateral canthal collapse. Complications occurred in 6/39 (15.4%) cases, consisting of distal graft necrosis (n = 2 eyes), suture rubbing the cornea (n = 2 eyes), moderate trichiasis (n = 1 eye) and graft adherence to the episclera (n = 1 eye). CONCLUSION The technique was successful in enhancing corneal protection, cosmesis and eyelid function and should be considered as a surgical option for any degree of eyelid agenesis in feline patients.
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Affiliation(s)
| | | | | | | | | | | | | | - Gladys Boo
- Eye Clinic for Animals, Sydney, Australia
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7
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Tang P, Song P, Peng Z, Zhang B, Gui X, Wang Y, Liao X, Chen Z, Zhang Z, Fan Y, Li Z, Cen Y, Zhou C. Chondrocyte-laden GelMA hydrogel combined with 3D printed PLA scaffolds for auricle regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 130:112423. [PMID: 34702546 DOI: 10.1016/j.msec.2021.112423] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 08/21/2021] [Accepted: 09/02/2021] [Indexed: 02/05/2023]
Abstract
The current gold standard for auricular reconstruction after microtia or ear trauma is the autologous cartilage graft with an autologous skin flap overlay. Harvesting autologous cartilage requires an additional surgery that may result in donor area complications. In addition, autologous cartilage is limited and the auricular reconstruction requires complex sculpting, which requires excellent clinical skill and is very time consuming. This work explores the use of 3D printing technology to fabricate bioactive artificial auricular cartilage using chondrocyte-laden gelatin methacrylate (GelMA) and polylactic acid (PLA) for auricle reconstruction. In this study, chondrocytes were loaded within GelMA hydrogel and combined with the 3D-printed PLA scaffolds to biomimetic the biological mechanical properties and personalized shape. The printing accuracy personalized scaffolds, biomechanics and chondrocyte viability and biofunction of artificial auricle have been studied. It was found that chondrocytes were fixed in the PLA auricle scaffolds via GelMA hydrogels and exhibited good proliferative properties and cellular activity. In addition, new chondrocytes and chondrogenic matrix, as well as type II collagen were observed after 8 weeks of implantation. At the same time, the transplanted auricle complex kept full and delicate auricle shape. This study demonstrates the potential of using 3D printing technology to construct in vitro living auricle tissue. It shows a great prospect in the clinical application of auricle regeneration.
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Affiliation(s)
- Pei Tang
- Department of Burn and Plastic Surgery, West China School of Medicine, West China Hospital, Sichuan University, 610041 Chengdu, China
| | - Ping Song
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China; College of Biomedical Engineering, Sichuan University, Chengdu 610064, China
| | - Zhiyu Peng
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Boqing Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China; College of Biomedical Engineering, Sichuan University, Chengdu 610064, China
| | - Xingyu Gui
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China; College of Biomedical Engineering, Sichuan University, Chengdu 610064, China
| | - Yixi Wang
- Department of Burn and Plastic Surgery, West China School of Medicine, West China Hospital, Sichuan University, 610041 Chengdu, China
| | - Xiaoxia Liao
- Department of Burn and Plastic Surgery, West China School of Medicine, West China Hospital, Sichuan University, 610041 Chengdu, China
| | - Zhixing Chen
- Department of Burn and Plastic Surgery, West China School of Medicine, West China Hospital, Sichuan University, 610041 Chengdu, China
| | - Zhenyu Zhang
- Department of Burn and Plastic Surgery, West China School of Medicine, West China Hospital, Sichuan University, 610041 Chengdu, China
| | - Yujiang Fan
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China; College of Biomedical Engineering, Sichuan University, Chengdu 610064, China
| | - Zhengyong Li
- Department of Burn and Plastic Surgery, West China School of Medicine, West China Hospital, Sichuan University, 610041 Chengdu, China.
| | - Ying Cen
- Department of Burn and Plastic Surgery, West China School of Medicine, West China Hospital, Sichuan University, 610041 Chengdu, China
| | - Changchun Zhou
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China; College of Biomedical Engineering, Sichuan University, Chengdu 610064, China
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8
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Non-Surgical Touch-Up with Hyaluronic Acid Fillers Following Facial Reconstructive Surgery. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11167507] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The use of hyaluronic acid (HA) injectable fillers has become increasingly widespread in facial recontouring and rejuvenation. We report our experiences to emphasize the role of HA fillers as tools beyond aesthetic treatments in cases of post-surgical facial sequelae. HA fillers are generally used for aesthetic rejuvenation, but one potential new horizon could be their application in trauma, reconstructive, and craniofacial surgery. This study was conducted retrospectively, evaluating medical reports of patients treated at the Maxillofacial Surgery Unit, University of Campania “Luigi Vanvitelli”, Naples, for lip incompetence, trauma, oncological, reconstructive, and craniosynostosis surgery sequelae. Visual analog scale (VAS) evaluation was performed to assess patient satisfaction. No major complications (i.e., impending necrosis or visual loss) were reported. Bruising and swelling was reported for 48 h after lip injection. At the immediate VAS evaluation, 67% of the patients were “extremely satisfied” and 33% “satisfied”. In those 33%, VAS scores changed to “extremely satisfied” at 6–9 weeks and 3–6 months of VAS evaluation (contextually to improvement in tissue flexibility, elasticity, and aesthetic appearance). Results indicate that this minimally invasive approach achieves a high level of aesthetic enhancement, improving patient satisfaction. The concept of HA filler applications could be a frontier that may be applicable to other areas of reconstructive facial plastic surgery.
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Pertea M, Ciobanu P, Poroch V, Velenciuc N, Lunca S, Anghelina F, Palade DO. Arterial only anastomosis associated with modified Baudet technique in ear replantation: Case reports and literature review. Medicine (Baltimore) 2021; 100:e25357. [PMID: 33787638 PMCID: PMC8021351 DOI: 10.1097/md.0000000000025357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 03/11/2021] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Total ear amputation is a relatively rare trauma with an absolute indication for surgical treatment. Numerous techniques for auricular reconstruction have been described. When local and general conditions allow microsurgical replantation, this must be the first choice. We propose the association of microsurgical techniques with some modification (modified Baudet technique) to obtain higher survival rate of the reimplanted stump. METHODS This study included cases of 3 male patients with total ear amputation, the injuries and their mechanism (workplace accident) being identical. Chief complaints were pain, bleeding, important emotional impact due by an unaesthetic appearance. The established diagnosis was traumatic complete ear amputation (grade IV auricular injury according to Weerda classification). Microsurgical replantation was performed only with arteriorraphy, and no vein anastomosis. Cartilage incisions and skin excisions were made to enlarge the cartilage-recipient site contact area. Medicinal leeches were used to treat venous congestion, to which systemic anticoagulant therapy was added. RESULTS The results showed the survival of the entire replanted segment in all cases, with good function and esthetical appearance. Patients were fully satisfied with the final outcome. CONCLUSION Microsurgical replantation is the gold standard, for the surgical treatment of total ear amputation. We believe that cartilage incisions and the increased surface of contact between cartilage and recipient site has an adjuvant role in revascularization of the amputated stump (with only arterial anastomosis) and the use of hirudotherapy helps to relieve early venous congestion.
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Affiliation(s)
- Mihaela Pertea
- University of Medicine and Pharmacy “Grigore T Popa”
- Clinic of Plastic Surgery and Reconstructive Microsurgery, “Sf. Spiridon” Emergency Hospital
| | - Petru Ciobanu
- University of Medicine and Pharmacy “Grigore T Popa”
- Clinic of Plastic Surgery and Reconstructive Microsurgery, “Sf. Spiridon” Emergency Hospital
| | - Vladimir Poroch
- University of Medicine and Pharmacy “Grigore T Popa”
- Clinic of Palliative Care
| | - Natalia Velenciuc
- University of Medicine and Pharmacy “Grigore T Popa”
- Second Surgical Oncologic Clinic, Regional Institute of Oncology
| | - Sorinel Lunca
- University of Medicine and Pharmacy “Grigore T Popa”
- Second Surgical Oncologic Clinic, Regional Institute of Oncology
| | | | - Dragos Octavian Palade
- University of Medicine and Pharmacy “Grigore T Popa”
- Clinic of Otorhinolaringology, “Sf. Spiridon” Emergency Hospital, Iasi Romania
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Jang CH, Koo Y, Kim G. ASC/chondrocyte-laden alginate hydrogel/PCL hybrid scaffold fabricated using 3D printing for auricle regeneration. Carbohydr Polym 2020; 248:116776. [DOI: 10.1016/j.carbpol.2020.116776] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 07/12/2020] [Accepted: 07/13/2020] [Indexed: 12/13/2022]
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11
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Deng M, Wang X, Yu Z, Cai Y, Liu W, Zhou G, Wang X, Yu Z, Li W, Zhang WJ. Cell-free fat extract promotes tissue regeneration in a tissue expansion model. Stem Cell Res Ther 2020; 11:50. [PMID: 32019588 PMCID: PMC7001260 DOI: 10.1186/s13287-020-1564-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 01/06/2020] [Accepted: 01/16/2020] [Indexed: 12/14/2022] Open
Abstract
Background Tissue expansion techniques play an important role in plastic surgery. How to improve the quality of the expanded skin and shorten the expansion period are still worth investigating. Our previous studies found that a cell-free fat extract (CEFFE) possessed pro-angiogenic and pro-proliferative activities. However, the role of CEFFE on tissue expansion has remained unclear. The purpose of this study was to evaluate the effect of CEFFE on tissue expansion. Methods A rat tissue expansion model was used. Animals were treated with CEFFE by subcutaneous injection. After 4 weeks of tissue expansion, the skin necrosis and retraction rates were evaluated, the thicknesses of the epidermis and dermis were determined by histological analyses, blood vessel density was measured by anti-CD31 staining, cell proliferation was assessed by proliferating cell nuclear antigen staining, and the expression of specific proteins was evaluated by western blot analyses. In addition, the effects of CEFFE on the proliferation and cell cycle of cultured HaCaT cells were evaluated in vitro. Results CEFFE treatment significantly decreased the necrosis rate and retraction of the expanded skin. The thickness of the epidermal and dermal layers was higher in CEFFE-treated compared to untreated skin. The density of blood vessels and cell proliferation in the epidermis of the expanded skin was improved by CEFFE treatment. In addition, CEFFE treatment significantly increased the expression of the vascular endothelial growth factor receptor, epidermal growth factor receptor, collagen type 1, and collagen type 3. CEFFE also increased the proliferation of HaCaT cells in culture. Conclusions CEFFE improves the quality of the expanded skin by promoting angiogenesis and cell proliferation. It could be potentially used clinically for augmenting tissue expansion.
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Affiliation(s)
- Mingwu Deng
- Department of Plastic and Reconstructive Surgery, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Tissue Engineering, National Tissue Engineering Center of China, 639 ZhiZaoJu Road, Shanghai, 200011, China
| | - Xiangsheng Wang
- Department of Plastic and Reconstructive Surgery, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Tissue Engineering, National Tissue Engineering Center of China, 639 ZhiZaoJu Road, Shanghai, 200011, China
| | - Ziyou Yu
- Department of Plastic and Reconstructive Surgery, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Tissue Engineering, National Tissue Engineering Center of China, 639 ZhiZaoJu Road, Shanghai, 200011, China
| | - Yizuo Cai
- Department of Plastic and Reconstructive Surgery, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Tissue Engineering, National Tissue Engineering Center of China, 639 ZhiZaoJu Road, Shanghai, 200011, China
| | - Wei Liu
- Department of Plastic and Reconstructive Surgery, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Tissue Engineering, National Tissue Engineering Center of China, 639 ZhiZaoJu Road, Shanghai, 200011, China
| | - Guangdong Zhou
- Department of Plastic and Reconstructive Surgery, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Tissue Engineering, National Tissue Engineering Center of China, 639 ZhiZaoJu Road, Shanghai, 200011, China
| | - Xiansong Wang
- Department of Plastic and Reconstructive Surgery, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Tissue Engineering, National Tissue Engineering Center of China, 639 ZhiZaoJu Road, Shanghai, 200011, China
| | - Zheyuan Yu
- Department of Plastic and Reconstructive Surgery, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Tissue Engineering, National Tissue Engineering Center of China, 639 ZhiZaoJu Road, Shanghai, 200011, China.
| | - Wei Li
- Department of Plastic and Reconstructive Surgery, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Tissue Engineering, National Tissue Engineering Center of China, 639 ZhiZaoJu Road, Shanghai, 200011, China.
| | - Wen Jie Zhang
- Department of Plastic and Reconstructive Surgery, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Tissue Engineering, National Tissue Engineering Center of China, 639 ZhiZaoJu Road, Shanghai, 200011, China.
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