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Keywords = musculocutaneous flap

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26 pages, 1708 KiB  
Review
Reconstruction of the Vulva and Perineum—Comparison of Surgical Methods
by Anna Jędrasiak, Honorata Juniewicz, Wiktoria Raczek, Alicja Srokowska, Mateusz Kozłowski and Aneta Cymbaluk-Płoska
J. Clin. Med. 2025, 14(13), 4456; https://doi.org/10.3390/jcm14134456 - 23 Jun 2025
Viewed by 645
Abstract
Vulvar and perineal reconstruction represents a significant surgical challenge, particularly in the context of oncological resections, trauma, or postpartum injuries. Vulvar cancer, predominantly squamous cell carcinoma, often necessitates extensive resections, leading to significant tissue defects and high rates of postoperative complications. Reconstructive procedures, [...] Read more.
Vulvar and perineal reconstruction represents a significant surgical challenge, particularly in the context of oncological resections, trauma, or postpartum injuries. Vulvar cancer, predominantly squamous cell carcinoma, often necessitates extensive resections, leading to significant tissue defects and high rates of postoperative complications. Reconstructive procedures, encompassing skin grafts and local, regional, and distant flaps, are intended to restore the anatomical structure, protect internal organs, and enhance functional outcomes and quality of life. The selection of technique is contingent upon the dimensions of the defect, its location, the patient’s condition, and the availability of suitable tissue. The management of minor defects can be accomplished through local advancements, while more extensive or complex cases necessitate the utilization of musculocutaneous (e.g., VRAM) or fasciocutaneous (e.g., ALT) flaps. The present article provides a review of surgical methods of vulvar and perineal reconstruction, with a focus on indications, techniques, and potential complications. Full article
(This article belongs to the Special Issue Gynecological Surgery: New Clinical Insights and Challenges)
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12 pages, 596 KiB  
Systematic Review
Scrotal Flaps for Penile Skin Reconstruction: A Systematic Review
by Sorin V. Parasca, Andrei Dumitrescu, Florin R. Stanescu and Ruxandra D. Sinescu
Medicina 2025, 61(6), 1052; https://doi.org/10.3390/medicina61061052 - 6 Jun 2025
Viewed by 832
Abstract
Background and Objectives: Infection, trauma, skin cancer, foreign substance injections and lymphedema are among the most frequent causes of penile skin defects. Scrotal flaps are a promising reconstructive option for penile resurfacing, offering improved functional and aesthetic outcomes; however, there is no [...] Read more.
Background and Objectives: Infection, trauma, skin cancer, foreign substance injections and lymphedema are among the most frequent causes of penile skin defects. Scrotal flaps are a promising reconstructive option for penile resurfacing, offering improved functional and aesthetic outcomes; however, there is no clear consensus on their superiority. Materials and Methods: A review of the literature was performed in PubMed Central and Scopus, and multiple keywords were employed. The initial search retrieved 9181 articles; 32 articles were finally selected, of which 13 were case reports and 19 were case series. Results: A total of 368 patients were included, the majority (71%) consulting for sclerosing lipogranuloma. Seven types of scrotal flaps were used: unilateral scrotal flap (n = 1), bilateral anterior scrotal flaps (n = 149), two-stage scrotal flap (n = 57), bipedicled bilateral anterior scrotal flaps (n = 140), apron-style scrotal flap (n = 1), scrotal pull-up (n = 13), and island dartos musculocutaneous flap (n = 7). Patient satisfaction was high in all studies. Outcome evaluation was typically conducted using subjective questionnaires with 2 or 5 items or visual analog scales. Few studies employed validated sexual function questionnaires, as the IIEF-5 or the EHS. Conclusions: Scrotal flaps provide good quality tissue for penile resurfacing, having the closest resemblance to normal penis skin. For a better understanding of the outcomes of different scrotal flaps, a thorough evaluation of postoperative complications should be made. The LOS and revision surgery rates may serve as surrogates for the financial burden of the procedure. Erectile function should be thoroughly evaluated with a 10-item Likert scale, IIEF-5, EHS, and POSAS. Full article
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23 pages, 6225 KiB  
Article
Clinical Presentation and Integrated Management of Pressure Injuries in the Emergency Hospital Setting: A Plastic Surgeon’s Perspective
by Stefan Cacior, Eliza-Maria Bordeanu-Diaconescu, Vladut-Alin Ratoiu, Andreea Grosu-Bularda, Florin-Vlad Hodea, Khalid Al-Falah, Razvan-Nicolae Teodoreanu, Serban-Arghir Popescu, Ioan Lascar and Cristian-Sorin Hariga
Healthcare 2024, 12(24), 2583; https://doi.org/10.3390/healthcare12242583 - 22 Dec 2024
Viewed by 2559
Abstract
Background: Pressure injuries are localized areas of tissue damage or necrosis that occur when pressure is applied to the skin for prolonged periods, often over bony prominences, often the sacrum, heels, ischial tuberosities, and greater trochanters. The pathophysiology is complex, involving a [...] Read more.
Background: Pressure injuries are localized areas of tissue damage or necrosis that occur when pressure is applied to the skin for prolonged periods, often over bony prominences, often the sacrum, heels, ischial tuberosities, and greater trochanters. The pathophysiology is complex, involving a combination of mechanical forces, ischemia, and tissue hypoxia. Methods: We conducted a 2-year retrospective study aiming to assess the clinical characteristics, risk factors, and management of pressure injuries in patients admitted to an emergency hospital who underwent a plastic surgery examination. Results: This study included 176 patients with clinically diagnosed pressure ulcers, with findings showing 28.52% of cases as stage III and 35.57% as stage IV. Common sites included the sacrum (40.94%), ischium (15.1%), and heel (14.43%). The median patient age was 76 years, with 47.15% between 60 and 80 years and 36.93% ≥ 80 years, often presenting with comorbidities increasing the risk of pressure injuries, such as cardiovascular disease (71.59%), diabetes (18.18%) and obesity (9.66%). Important risk factors included neurological diseases (46.02%), spinal cord injuries (14.7%), and nutritional deficiencies, as indicated by anemia (10.43g/dL; 95% CI [10.04; 10.82]), low serum albumin (2.56 g/dL; 95% CI [2.43; 2.69]) and proteins (5.54 g/dL; 95% CI [5.34; 5.73]). Mortality was significant, at 36.93%, with 23.3% occurring within the first 7 days of hospitalization due to the patients’ critical condition. Decision-making for surgical intervention considered the patient’s general status, comorbidities, and ulcer severity. Surgical treatment consisted of seriate debridement, negative pressure vacuum therapy, and/or coverage using skin grafting, local advancement, or rotation flaps. Conclusions: The key question for a plastic surgeon to consider is how pressure ulcers should be managed. Various debridement and covering techniques should be tailored to the wound’s characteristics, considering patient comorbidities and general health condition. Full article
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10 pages, 2046 KiB  
Brief Report
“Floating Island Flap”—A New Technique for the Reconstruction of Full-Thickness Lower Eyelid Defects with Spontaneous Healing (Folded V-Y Island Flap with Orbicularis Oculi Muscle)
by Andrzej Bieniek, Iwona Chlebicka, Katarzyna Kliniec and Jacek C. Szepietowski
J. Clin. Med. 2024, 13(22), 6648; https://doi.org/10.3390/jcm13226648 - 6 Nov 2024
Viewed by 970
Abstract
Background: Due to the high incidence of malignant tumors of the lower eyelids and the widespread use of surgery for their treatment, the reconstruction of tissues in this area is a frequent task for surgeons. Methods for restoring full-thickness lower eyelid defects [...] Read more.
Background: Due to the high incidence of malignant tumors of the lower eyelids and the widespread use of surgery for their treatment, the reconstruction of tissues in this area is a frequent task for surgeons. Methods for restoring full-thickness lower eyelid defects are often invasive, pose a significant risk of complications, and do not provide optimal results. Methods: The authors developed a simple technique for the reconstruction of full-wall defects of the lower eyelids. It is a V-Y-type musculocutaneous island flap from the lower eyelid, with the orbicularis oculi muscle folded in the upper part and partially left for spontaneous healing, called by the authors a “floating island flap”. Between 2012 and 2023, 39 patients were operated on using this method. Results: Surgical procedures performed under local anesthesia were well tolerated by the patients. The healing process was quick and well accepted. Complications were rare. The most common were: eye irritation and temporary swelling of the flap. In 37 patients, proper protection of the eyeball and good esthetic results were achieved; only in two cases was the cosmetic result assessed as poor. Corneal defects occurred in two cases and healed after conservative treatment. In no cases was reoperation necessary. Conclusions: The developed method is simple and effective. It can be widely used in the reconstruction of full-thickness defects of the lower eyelids. Full article
(This article belongs to the Special Issue Update in Cutaneous Reconstruction: Flaps and Skin Grafting)
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13 pages, 4427 KiB  
Article
Reconstructive Options for Pressure Ulcers in Pediatric Patients
by Dominika Krakowczyk, Jakub Opyrchał, Tomasz Koszutski, Krzysztof Dowgierd and Łukasz Krakowczyk
Children 2024, 11(6), 691; https://doi.org/10.3390/children11060691 - 5 Jun 2024
Cited by 2 | Viewed by 4320
Abstract
Background: Pressure ulcers pose significant challenges in terms of treatment, often exhibiting a low success rate and a propensity for recurrence. Children with neurological impairments such as myelomeningocele and those with spinal injuries are particularly vulnerable to developing pressure ulcers. Despite advancements, achieving [...] Read more.
Background: Pressure ulcers pose significant challenges in terms of treatment, often exhibiting a low success rate and a propensity for recurrence. Children with neurological impairments such as myelomeningocele and those with spinal injuries are particularly vulnerable to developing pressure ulcers. Despite advancements, achieving successful reconstruction remains a formidable task. Common sites prone to pressure ulcer formation include the sacral and ischial regions, as well as areas over bony prominences. Additionally, pressure ulcers attributable to medical devices facilitating ambulation are observed. While many pressure sores resolve spontaneously, conservative management may prove ineffective for some, especially in cases of stage 3 and 4 ulcers, necessitating surgical intervention. Various surgical techniques are employed for the treatment of decubitus ulcers, yet there exists no universally accepted gold standard for their management. This paper presents our institutional experience in this domain, highlighting differences in surgical approaches, treatment outcomes, complication rates, and long-term follow-up. Methods: This study involved a retrospective analysis of medical records from 11 children, ranging in age from 10 to 17 years, who presented with extensive pressure ulcers that were unresponsive to conservative treatment measures. Data collection spanned from February 2017 to June 2022. The pressure ulcers affected various anatomical regions, including the ischial area (5/11 patients), sacral region (3/11 patients), lower limb (1/11 patients), elbow (1/11 patients), and perineal area (1/11 patients). Surgical intervention was the chosen approach for all cases, employing techniques such as reconstructive surgery utilizing perforator, pediculated flaps, and locoregional flaps. Results: Eleven patients with sore ulcers (stage 3 and 4) were treated surgically. We present our experience of using surgical methods, including pedicled anterolateral flaps, pedicled gracilis musculocutaneous flaps, propeller flaps and locoregional flaps. In some cases, surgery was performed after 60 days of hospitalization or ten years after ulcer occurrence. We reviewed the length of hospital stay, surgical management and patient satisfaction. Patients were followed up to 5 years post-surgery. All flaps survived except for one flap where partial necrosis was observed. The recurrence rate was 9.01% (1/11). One patient underwent another surgery. The general outcome was satisfactory. Conclusions: Conclusions: Our findings underscore the efficacy of flap reconstruction surgical techniques in the management of pressure ulcers among pediatric patients. Based on our experience and the outcomes observed, we advocate for considering reconstructive surgery as a viable therapeutic option early in the treatment course, particularly for stage 3 and 4 ulcers. This approach not only addresses the immediate needs of patients but also holds promise for long-term wound healing and prevention of recurrence. Full article
(This article belongs to the Section Pediatric Surgery)
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12 pages, 2990 KiB  
Article
Short-Term Periodic Fasting Reduces Ischemia-Induced Necrosis in Musculocutaneous Flap Tissue
by Andrea Weinzierl, Maximilian Coerper, Yves Harder, Michael D. Menger and Matthias W. Laschke
Biomedicines 2024, 12(3), 690; https://doi.org/10.3390/biomedicines12030690 - 20 Mar 2024
Viewed by 2024
Abstract
Periodic fasting (PF) as a form of dietary restriction has been shown to induce tissue-protective effects against ischemic injury in several different tissues. Accordingly, in this study we analyzed whether a short-term 24 h fast is suitable to prevent necrosis of musculocutaneous flap [...] Read more.
Periodic fasting (PF) as a form of dietary restriction has been shown to induce tissue-protective effects against ischemic injury in several different tissues. Accordingly, in this study we analyzed whether a short-term 24 h fast is suitable to prevent necrosis of musculocutaneous flap tissue undergoing acute persistent ischemia. C57BL/6N mice were randomly divided into a PF group (n = 8) and a control group that was given unrestricted access to standard chow (n = 8). The PF animals underwent a 24 h fast immediately before flap elevation and had unrestricted access to food for the rest of the 10 day observation period. Musculocutaneous flaps with a random pattern design were dissected on the animals’ backs and mounted into dorsal skinfold chambers. On days 1, 3, 5, 7 and 10 after surgery, nutritive tissue perfusion, angiogenesis and flap necrosis were evaluated using intravital fluorescence microscopy. Thereafter, the flap tissue was excised and fixed for histological and immunohistochemical analyses. The flaps of PF-treated animals exhibited a higher functional capillary density and more newly formed microvessels, resulting in a significantly increased flap survival rate. Moreover, they contained a lower number of myeloperoxidase (MPO)-positive neutrophilic granulocytes and cleaved caspase-3-positive apoptotic cells in the transition zone between vital and necrotic flap tissue. These findings indicate that short-term PF improves tissue survival in ischemically challenged musculocutaneous flaps by maintaining nutritive blood perfusion and dampening ischemia-induced inflammation. Full article
(This article belongs to the Section Molecular and Translational Medicine)
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12 pages, 820 KiB  
Article
Reconstructive Surgery of Pressure Injuries in Spinal Cord Injury/Disorder Patients: Retrospective Observational Study and Proposal of an Algorithm for the Flap Choice
by Rossella Sgarzani, Paola Rucci, Siriana Landi, Micaela Battilana, Rita Capirossi, Beatrice Aramini and Luca Negosanti
Healthcare 2024, 12(1), 34; https://doi.org/10.3390/healthcare12010034 - 22 Dec 2023
Cited by 5 | Viewed by 2145
Abstract
Pressure injuries (PIs) are a common complication in patients with spinal cord injury/disorder (SCI/D), and deep PIs require surgical treatment consisting of wide debridement and adequate reconstruction. We conducted a retrospective observational study at a tertiary rehabilitation hospital for SCI/D in Italy with [...] Read more.
Pressure injuries (PIs) are a common complication in patients with spinal cord injury/disorder (SCI/D), and deep PIs require surgical treatment consisting of wide debridement and adequate reconstruction. We conducted a retrospective observational study at a tertiary rehabilitation hospital for SCI/D in Italy with the aim of describing the incidence and associated risk factors of postoperative complications in individuals with SCI/D presenting with chronic deep PIs, treated with a specific flap selection algorithm based on the site of the defect, the presence of scars from previous surgeries, and the need to spare reconstructive options for possible future recurrences. Medical records of surgical procedures performed on SCI/D patients with fourth-degree PIs, according to NPUAP classification (National Pressure Ulcer Advisory Panel), between July 2011 and January 2018 were reviewed. A total of 434 surgical procedures for fourth-degree PIs in 375 SCI/D patients were analyzed. After a mean follow-up of 21 months (range 12–36), 59 PIs (13.6%) had minor complications, and 17 (3.9%) had major complications requiring reoperation. The sacral site and muscular and musculocutaneous flaps were significant risk factors for postoperative complications. Six patients (1.4%) had a recurrence. The choice of flap correlates with the outcome of decubitus reconstruction. Therefore, reconstructive planning should be based on established principles. Full article
(This article belongs to the Special Issue Advances in Plastic and Reconstructive Surgery)
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11 pages, 3053 KiB  
Case Report
Staged Treatment of Posttraumatic Tibial Osteomyelitis with Rib Graft and Serratus Anterior Muscle Autografts—Case Report
by Bogdan Anglitoiu, Ahmed Abu-Awwad, Jenel-Marain Patrascu, Simona-Alina Abu-Awwad, Anca Raluca Dinu, Alina-Daniela Totorean, Dan Cojocaru and Mihai-Alexandru Sandesc
J. Pers. Med. 2023, 13(12), 1651; https://doi.org/10.3390/jpm13121651 - 27 Nov 2023
Viewed by 1440
Abstract
Osteomyelitis of the tibia is a challenging condition, particularly when it occurs as a result of trauma. This abstract presents a case study detailing the successful staged treatment of posttraumatic tibial osteomyelitis utilizing a unique combination of rib graft and serratus anterior muscle. [...] Read more.
Osteomyelitis of the tibia is a challenging condition, particularly when it occurs as a result of trauma. This abstract presents a case study detailing the successful staged treatment of posttraumatic tibial osteomyelitis utilizing a unique combination of rib graft and serratus anterior muscle. This medical abstract presents a case study of a 52-year-old male with a history of heavy smoking and obliterating arteriopathy of the lower limbs. The patient sustained a traumatic open fracture classified as Type IIIA Gustilo Anderson involving one-third of the distal right tibia diaphysis, with an associated right fibular malleolus fracture. The treatment approach comprised multiple stages, focusing on wound management, infection control, and limb salvage. The initial stage involved the application of an external fixation device in the emergency setting. Seven days later, an osteosynthesis procedure was performed using a Kuntscher nail and wire cerclage. However, complications emerged, with wound dehiscence and purulent secretion observed at 14 days postsurgery. Subsequently, secondary suturing was carried out at the 20-day mark. The second stage of the treatment involved implant removal, wide excisional debridement, pulse lavage, osteoclasia, and relaxation of the peroneal malleolus. A monoplane external fixation system was applied. As a part of postoperative care, aspiration therapy with a vacuum pump was administered, along with a 10-day course of vancomycin according to the antibiogram. Positive clinical signs of healing were noted, and sterile cultures confirmed the results. The third stage of the intervention focused on grafting the osteo-muscular defect, utilizing autografts from the rib and serratus anterior muscle. The external fixator was maintained in place during this phase. In the fourth and final stage, after an 8-week integration period of the musculocutaneous flap, the external fixator was removed, and internal fixation was accomplished with a blocked Less Invasive Stabilization System (LISS) plate inserted using the Minimally Invasive Plate Osteosynthesis (MIPO) technique. This case underscores the significance of a multistage approach in managing complex limb injuries, emphasizing the importance of timely intervention, infection control, and innovative techniques for limb salvage and restoration of function. Full article
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13 pages, 3568 KiB  
Article
Caloric Restriction: A Novel Conditioning Strategy to Improve the Survival of Ischemically Challenged Musculocutaneous Random Pattern Flaps
by Andrea Weinzierl, Maximilian Coerper, Yves Harder, Michael D. Menger and Matthias W. Laschke
Nutrients 2023, 15(18), 4076; https://doi.org/10.3390/nu15184076 - 20 Sep 2023
Cited by 1 | Viewed by 1600
Abstract
Caloric restriction (CR) is a cost-effective and easy-to-perform approach to counteracting surgical stress. The present study therefore evaluates the tissue-protective effects of a 30% CR in musculocutaneous flaps undergoing ischemia. For this purpose, a well-established murine dorsal skinfold chamber model, in combination with [...] Read more.
Caloric restriction (CR) is a cost-effective and easy-to-perform approach to counteracting surgical stress. The present study therefore evaluates the tissue-protective effects of a 30% CR in musculocutaneous flaps undergoing ischemia. For this purpose, a well-established murine dorsal skinfold chamber model, in combination with random pattern musculocutaneous flaps, was used. C57BL/6N mice were divided at random into a CR group (n = 8) and a control group with unrestricted access to standard chow (n = 8). The CR animals were subjected to a 30% reduction in caloric intake for 10 days before flap elevation. Intravital fluorescence microscopy was carried out on days 1, 3, 5, 7 and 10 after flap elevation to assess the nutritive blood perfusion, angiogenesis and flap necrosis. Subsequently, the flap tissue was harvested for additional histological and immunohistochemical analyses. The CR-treated animals exhibited a significantly higher functional capillary density and more newly formed microvessels within the flap tissue when compared to the controls; this was associated with a significantly higher flap survival rate. Immunohistochemical analyses showed a decreased invasion of myeloperoxidase-positive neutrophilic granulocytes into the flap tissue of the CR-treated mice. Moreover, the detection of cleaved caspase-3 revealed fewer cells undergoing apoptosis in the transition zone between the vital and necrotic tissue in the flaps of the CR-treated mice. These results demonstrate that a CR of 30% effectively prevents flap necrosis by maintaining microperfusion on a capillary level and inhibiting inflammation under ischemic stress. Hence, CR represents a promising novel conditioning strategy for improving the survival of musculocutaneous flaps with random pattern perfusion. Full article
(This article belongs to the Section Nutrition and Metabolism)
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12 pages, 3424 KiB  
Article
The Use of the Deep Brachial Artery as the Recipient Artery for Free Perforator Flap Transfer: An Anatomic Study and Clinical Applications
by Hidehiko Yoshimatsu, Ryo Karakawa, Yuma Fuse, Tomoyuki Yano, Satoru Muro and Keiichi Akita
Medicina 2023, 59(6), 1087; https://doi.org/10.3390/medicina59061087 - 5 Jun 2023
Cited by 2 | Viewed by 2673
Abstract
Background and Objectives: Soft tissue reconstruction after sarcoma ablation in the posterior aspect of the upper arm has been commonly addressed using the pedicled latissimus dorsi musculo-cutaneous flap. The use of a free flap for coverage of this region has not been reported [...] Read more.
Background and Objectives: Soft tissue reconstruction after sarcoma ablation in the posterior aspect of the upper arm has been commonly addressed using the pedicled latissimus dorsi musculo-cutaneous flap. The use of a free flap for coverage of this region has not been reported in detail. The goal of this study was to characterize the anatomical configuration of the deep brachial artery in the posterior upper arm and assess its clinical utility as a recipient artery for free-flap transfers. Materials and Methods: In total, 18 upper arms from 9 cadavers were used for anatomical study to identify the deep brachial artery’s origin and point of crossing the x-axis, which was set from the acromion to the medial epicondyle of the humerus. Measurements of the diameter were taken at each point. The anatomic findings of the deep brachial artery were employed clinically in the reconstruction of the posterior upper arm after sarcoma resection using free flaps in 6 patients. Results: The deep brachial artery was found in all specimens between the long head and the lateral head of the triceps brachii muscle, and it crossed the x-axis at an average distance of 13.2 ± 2.9 cm from the acromion, with an average diameter of 1.9 ± 0.49 mm. In all 6 clinical cases, the superficial circumflex iliac perforator flap was transferred to cover the defect. The average size of the recipient artery, the deep brachial artery, was 1.8 mm (range, from 1.2 to 2.0 mm). The average diameter of the pedicle artery, the superficial circumflex iliac artery, was 1.5 mm (range, from 1.2 to 1.8 mm). All flaps survived completely with no postoperative complications. Conclusions: The deep brachial artery can be a reliable recipient artery in free-flap transfers for posterior upper arm reconstruction, given its anatomical consistency and sufficient diameter. Full article
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14 pages, 3926 KiB  
Article
Microvascular Fragments Protect Ischemic Musculocutaneous Flap Tissue from Necrosis by Improving Nutritive Tissue Perfusion and Suppressing Apoptosis
by Andrea Weinzierl, Yves Harder, Daniel Schmauss, Michael D. Menger and Matthias W. Laschke
Biomedicines 2023, 11(5), 1454; https://doi.org/10.3390/biomedicines11051454 - 16 May 2023
Cited by 4 | Viewed by 1858
Abstract
Microvascular fragments (MVF) derived from enzymatically digested adipose tissue are functional vessel segments that have been shown to increase the survival rate of surgical flaps. However, the underlying mechanisms have not been clarified so far. To achieve this, we raised random-pattern musculocutaneous flaps [...] Read more.
Microvascular fragments (MVF) derived from enzymatically digested adipose tissue are functional vessel segments that have been shown to increase the survival rate of surgical flaps. However, the underlying mechanisms have not been clarified so far. To achieve this, we raised random-pattern musculocutaneous flaps on the back of wild-type mice and mounted them into dorsal skinfold chambers. The flaps were injected with MVF that were freshly isolated from green fluorescent protein-positive (GFP+) donor mice or saline solution (control). On days 1, 3, 5, 7, and 10 after surgery, intravital fluorescence microscopy was performed for the quantitative assessment of angiogenesis, nutritive blood perfusion, and flap necrosis. Subsequently, the flaps were analyzed by histology and immunohistochemistry. The injection of MVF reduced necrosis of the ischemic flap tissue by ~20%. When compared to controls, MVF-injected flaps also displayed a significantly higher functional capillary density and number of newly formed microvessels in the transition zone, where vital tissue bordered on necrotic tissue. Immunohistochemical analyses revealed a markedly lower number of cleaved caspase-3+ apoptotic cells in the transition zone of MVF-injected flaps and a significantly increased number of CD31+ microvessels in both the flaps’ base and transition zone. Up to ~10% of these microvessels were GFP+, proving their origin from injected MVF. These findings demonstrate that MVF reduce flap necrosis by increasing angiogenesis, improving nutritive tissue perfusion, and suppressing apoptosis. Hence, the injection of MVF may represent a promising strategy to reduce ischemia-induced flap necrosis in future clinical practice. Full article
(This article belongs to the Section Biomedical Engineering and Materials)
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13 pages, 1616 KiB  
Article
Ilizarov Bone Transfer for Treatment of Large Tibial Bone Defects: Clinical Results and Management of Complications
by Zheming Cao, Yiqian Zhang, Katelyn Lipa, Liming Qing, Panfeng Wu and Juyu Tang
J. Pers. Med. 2022, 12(11), 1774; https://doi.org/10.3390/jpm12111774 - 27 Oct 2022
Cited by 7 | Viewed by 3074
Abstract
Backgrounds: The purpose of this study is to present our clinical experience using the Ilizarov bone transfer technique and free-flap technique in the reconstruction of large tibial bone and soft tissue defects, including an evaluation of both the management of postoperative complications and [...] Read more.
Backgrounds: The purpose of this study is to present our clinical experience using the Ilizarov bone transfer technique and free-flap technique in the reconstruction of large tibial bone and soft tissue defects, including an evaluation of both the management of postoperative complications and long-term outcomes. Methods: From January 2010 to May 2020, 72 patients with tibia bone and soft tissue defects were retrospectively evaluated. Either an anterolateral thigh perforator flaps (ALTP) or latissimus dorsi musculocutaneous flaps (LD), solely or in combination, were used to cover soft tissue defects. Once the flap was stabilized, an Ilizarov external fixator was applied to the limb. Follow-up was postoperatively performed at 1, 3, 6, 9, and 12 months. Results: Postoperatively, there were two cases of total and five of partial flap necrosis, and two cases of subcutaneous ulcers, which were caused by vascular crisis, infection, and hematoma, respectively. All the patients underwent Ilizarov external fixator surgery after flap recovery. A total of 16 complications occurred, including 3 cases of simple needle tract infection (antibiotic treatment) and 13 cases of complications requiring reoperation. A correlation factor analysis revealed that the main factors affecting the healing time were the defect length and operative complications. All patients with complications treated with the vascularized iliac flap eventually healed completely. Conclusions: The Ilizarov method used together with an ALTP, LD, or a combination thereof yields good clinical results for repairing large bone and soft tissue defects of the tibia, thus reducing the incidence of amputations. However, longer treatment times may be involved, and postoperative complications can occur. The vascularized iliac flap may be a suitable choice for the treatment of postoperative complications of this type of Ilizarov bone transport. Full article
(This article belongs to the Special Issue Good Clinical Practice in Plastic Surgery)
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8 pages, 1099 KiB  
Article
Shedding of the Endothelial Glycocalyx Independent of Systemic Tryptase Release during Oncologic Oral Surgery: An Observational Study
by Hendrik Drinhaus, Daniel C. Schroeder, Nicolas Hunzelmann, Holger Herff, Thorsten Annecke, Bernd W. Böttiger and Wolfgang A. Wetsch
J. Clin. Med. 2022, 11(19), 5797; https://doi.org/10.3390/jcm11195797 - 30 Sep 2022
Cited by 1 | Viewed by 1483
Abstract
The endothelial glycocalyx and endothelial surface layer are crucial for several functions of the vasculature. Damage to the glycocalyx (“shedding”) occurs during diverse clinical conditions, including major surgery. Mast cell tryptase has been proposed as one possible “sheddase”. During oncologic oral surgery, glycocalyx [...] Read more.
The endothelial glycocalyx and endothelial surface layer are crucial for several functions of the vasculature. Damage to the glycocalyx (“shedding”) occurs during diverse clinical conditions, including major surgery. Mast cell tryptase has been proposed as one possible “sheddase”. During oncologic oral surgery, glycocalyx shedding could be detrimental due to loss of vascular barrier function and consequent oedema in the musculocutaneous flap graft. Concentrations of the glycocalyx components heparan sulphate and syndecan-1, as well as of tryptase in blood serum before and after surgery, were measured in 16 patients undergoing oncologic oral surgery. Secondary measures were the concentrations of these substances on postoperative days 1 and 2. Heparan sulphate rose from 692 (median, interquartile range: 535–845) to 810 (638–963) ng/mL during surgery. Syndecan-1 increased from 35 (22–77) ng/mL to 138 (71–192) ng/mL. Tryptase remained virtually unchanged with 4.2 (3–5.6) before and 4.2 (2.5–5.5) ng/mL after surgery. Concentrations of heparan sulphate and syndecan-1 in serum increased during surgery, indicating glycocalyx shedding. Tryptase concentration remained equal, suggesting other sheddases than systemic tryptase release to be responsible for damage to the glycocalyx. Investigating strategies to protect the glycocalyx during oncologic oral surgery might hold potential to improve flap viability and patient outcome. Full article
(This article belongs to the Section Dentistry, Oral Surgery and Oral Medicine)
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10 pages, 1486 KiB  
Article
Reconstruction of Large Soft Tissue Defects in the Distal Lower Extremity: Free Chain-Linked Bilateral Anterolateral Thigh Perforator Flaps versus Extended Latissimus Dorsi Musculocutaneous Flaps
by Jiqiang He, Gunel Guliyeva, Panfeng Wu, Liming Qing, Fang Yu and Juyu Tang
J. Pers. Med. 2022, 12(9), 1400; https://doi.org/10.3390/jpm12091400 - 29 Aug 2022
Cited by 2 | Viewed by 5254
Abstract
Background: Reconstruction of the large soft-tissue defects in the lower extremity still constitutes a challenge for plastic surgeons. This retrospective study was conducted to compare the surgical and clinical outcomes of the chain-linked bilateral anterolateral thigh perforator flaps and extended latissimus dorsi musculocutaneous [...] Read more.
Background: Reconstruction of the large soft-tissue defects in the lower extremity still constitutes a challenge for plastic surgeons. This retrospective study was conducted to compare the surgical and clinical outcomes of the chain-linked bilateral anterolateral thigh perforator flaps and extended latissimus dorsi musculocutaneous flap in the reconstruction of the large soft tissue defects of the lower extremity. Methods: From January 2012 to December 2021, 34 patients aged between 20 and 66 years received chain-linked bilateral anterolateral thigh perforator flaps (15 cases) or extended latissimus dorsi musculocutaneous flaps (19 cases) for the reconstruction of extensive soft-tissue defects in the lower extremity. The two groups were homogeneous in terms of age, etiology, comorbidities, and flap area. In addition, the intraoperative data, outcomes, complications, and long-term follow-up results were collected and analyzed. Results: The extended latissimus dorsi musculocutaneous flap group had a shorter operation time (271.8 ± 59.5 min vs. 429.6 ± 51.9 min), harvest time (58.9 ± 24.8 min vs. 152.7 ± 41.4 min), and anastomosis time (27.2 ± 10.4 min vs. 53.7 ± 8.1 min) than the chain-linked bilateral anterolateral thigh perforator flaps group (p < 0.05). Based on patient self-assessment, the donor site temporary muscle weakness in the extended latissimus dorsi musculocutaneous flap group was significantly more than that in the chain-linked bilateral anterolateral thigh perforator flaps group (p < 0.05). Conclusion: Both methods can repair large defects and restore the function of the injured limbs at a single stage. However, considering the operation time and flap-harvesting time, the authors recommend the extended latissimus dorsi musculocutaneous flap, especially for those who cannot tolerate a prolonged surgery. Full article
(This article belongs to the Special Issue Good Clinical Practice in Plastic Surgery)
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Article
Bromelain Protects Critically Perfused Musculocutaneous Flap Tissue from Necrosis
by Andrea Weinzierl, Yves Harder, Daniel Schmauss, Michael D. Menger and Matthias W. Laschke
Biomedicines 2022, 10(6), 1449; https://doi.org/10.3390/biomedicines10061449 - 19 Jun 2022
Cited by 10 | Viewed by 2622
Abstract
Bromelain has previously been shown to prevent ischemia-induced necrosis in different types of tissues. In the present study, we, therefore, evaluated for the first time, the tissue-protective effects of bromelain in musculocutaneous flaps in mice. Adult C57BL/6N mice were randomly assigned to a [...] Read more.
Bromelain has previously been shown to prevent ischemia-induced necrosis in different types of tissues. In the present study, we, therefore, evaluated for the first time, the tissue-protective effects of bromelain in musculocutaneous flaps in mice. Adult C57BL/6N mice were randomly assigned to a bromelain treatment group and a control group. The animals were treated daily with intraperitoneal injections of 20 mg/kg bromelain or saline (control), starting 1 h before the flap elevation throughout a 10-day observation period. The random-pattern musculocutaneous flaps were raised on the backs of the animals and mounted into a dorsal skinfold chamber. Angiogenesis, nutritive blood perfusion and flap necrosis were quantitatively analyzed by means of repeated intravital fluorescence microscopy over 10 days after surgery. After the last microscopy, the flaps were harvested for additional histological and immunohistochemical analyses. Bromelain reduced necrosis of the critically perfused flap tissue by ~25%. The bromelain-treated flaps also exhibited a significantly higher functional microvessel density and an elevated formation of newly developed microvessels in the transition zone between the vital and necrotic tissues when compared to the controls. Immunohistochemical analyses demonstrated a markedly lower invasion of the myeloperoxidase-positive neutrophilic granulocytes and a significantly reduced number of cleaved caspase 3-positive apoptotic cells in the transition zone of bromelain-treated musculocutaneous flaps. These findings indicate that bromelain prevents flap necrosis by maintaining nutritive tissue perfusion and by suppressing ischemia-induced inflammation and apoptosis. Hence, bromelain may represent a promising compound to prevent ischemia-induced flap necrosis in clinical practice. Full article
(This article belongs to the Section Molecular and Translational Medicine)
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