An Extraordinary Reconstruction of a Postoperative Defect after Metatarsophalangeal Joint Arthrodesis of the Big Toe Using the "Chinese Forearm Flap". / Eine außergewöhnliche Rekonstruktion eines postoperativen Defektes nach Grundgelenksarthrodese der Großzehe mithilfe des "Chinesischen Unterarmlappens".

BACKGROUND: We present an unusual technique for reconstruction of a postoperative tissue defect following hallux rigidus surgery. METHODS: A complicated course after left big toe arthrodesis resulted in a soft tissue defect with bone exposure of the first ray. Amputation of the big toe was categorically rejected by the patient. There was advanced arteriosclerosis with single-vessel supply to the foot via the posterior tibial artery. OUTCOME: To preserve the big toe, the defect was covered by a fasciocutaneous radial free flap with a 15 cm long vascular pedicle which was microanastomosed to the posterior tibial artery and its accompanying vein at the level of the medial malleolus. CONCLUSION: In certain extreme situations, the free "Chinese" radial flap can be quite effective in covering forefoot defects and allowing satisfactory and aesthetically pleasing soft tissue reconstruction.

Less is more - retrospective comparison of shoulder strength and range of motion between conventional and muscle-sparing harvesting technique of a latissimus dorsi flap.

BACKGROUND: The muscle-sparing latissimus dorsi flap poses an alternative to the conventional latissimus dorsi flap when a defect requires a smaller flap volume with a long vascular pedicle. The aim of the study was to analyze the functional outcome following muscle-sparing versus conventional harvest of a latissimus dorsi flap. MATERIAL AND METHODS: Patients who received a muscle-sparing latissimus dorsi muscle flap transplantation (group 1) and patients with a complete latissimus dorsi muscle flap harvest (group 2) for defect reconstruction at the University Hospital of Erlangen between 2007 and 2016 were examined. The evaluation included a physical examination with the measurement of strength and range of motion of the shoulder of both the donor side as well as the nonoperated side. Furthermore, the DASH score was evaluated. Additionally, patients in group 1 received a neurophysiological examination. RESULTS: The DASH score did not show statistically significant differences between both groups. Both strength (p = 0.031) and range of motion (p<0.05) of the shoulder of the donor side were statistically significantly lower than the nonoperated side in group 2, while no difference was found in group 1. The neurophysiological examination in group 1 showed a reduced nerve conduction velocity of the donor side as compared to the nonoperated side in most patients (60% and n = 3). CONCLUSION: Harvesting the muscle-sparing latissimus dorsi flap leads to less functional impairments of the shoulder than harvesting the complete latissimus dorsi flap.

Experiencia con colgajos toracoabdominales en reconstrucción mamaria. Clasificación personal y variantes / Experience with thoracoabdominal flaps in breast reconstruction. Personal classification and variants

INTRODUCCIÓN Y OBJETIVO: Los colgajos toracoabdominales permiten el cierre de defectos torácicos con una menor morbilidad y dificultad técnica respecto a los colgajos a distancia. En cirugía recontructiva oncológica mamaria se utilizaron primariamente como colgajos fasciocutáneos para pacientes con cáncer de mama localmente avanzado (T3 y T4) que requieren grandes resecciones de piel y necesitan una cubierta rápida y eficaz del defecto torácico. En los últimos años han resurgido como opción terapéutica para solucionar complicaciones postquirúrgicas por isquemia y necrosis cutánea con exposición de expansores o implantes mamarios. El aumento de la mastectomía reductora de riesgo ha llevado a zonas de necrosis cutáneas pequeñas que requieren colgajos de vecindad para solucionar la complicación. Es en esta última indicación donde estos colgajos tienen una aplicación óptima. MATERIAL Y MÉTODO: Describimos el colgajo toracoabdominal como una técnica reconstructiva de gran utilidad para cubrir defectos cutáneos en cirugía mamaria y presentamos una clasificación útil para clarificar sus indicaciones, extraída de nuestra experiencia con dichos colgajos. RESULTADOS: Elaboramos una clasificación didáctica de los colgajos toracoabdominales, presentamos un caso clínico de cada modelo de colgajo, y recopilamos nuestra casuística. CONCLUSIONES: Destacamos el uso específico en complicaciones de cirugías de reconstrucción mamaria de los colgajos toracoabdominales como alternativa que aporta tejidos de igual coloración, fácil de realizar, con cierre directo de la zona donante por lo general y con un pedículo vascular fiable. Además, aportamos una clasificación propia

BACKGROUND AND OBJECTIVE: The thoracoabdominal flap allows the closure of thoracic defects with a lower morbidity and technical difficulty compared to remote flaps. In mammary oncological reconstructive surgery, they were primarily used as fasciocutaneous flaps for patients with locally advanced breast cancer (T3 and T4) that require large skin resections and a fast and effective coverage of the thoracic defect. In recent years they have resurged as a therapeutic option to solve postoperative complications due to ischemia and skin necrosis with exposure of expanders or breast implants.The increase in the practice of risk-reducing mastectomy has led to areas of small skin necrosis that require local flaps to solve the complication. It is in this last indication where these flaps have an optimal application. METHODS: In this study, the thoracoabdominal flap is presented as a very useful reconstructive technique to cover skin defects in breast surgery. A classification is presented in order to clarify these fasciocutaneous flaps as well as our experience with theme. RESULTS: We elaborate a didactic classification of thoracoabdominal flaps, presenting a clinical case of each flap model, and compiling our casuistry. CONCLUSIONS: We highlight the specific use in complications of breast reconstruction surgeries of thoracoabdominal flaps as an alternative that provides tissues of the same color, easy to perform, with direct closure of the donor area and with a reliable vascular pedicle. In addition, we provide our own classification

¿Es el ADN libre circulante (cfDNA) derivado del donante (dd-cfDNA) un nuevo biomarcador para el rechazo de aloinjertos en trasplante? / No disponible

No disponible

A Systematic Review on Outcomes of Anterior Skull Base Reconstruction.

INTRODUCTION: Anterior skull base resection often results in large defects that need to be reconstructed. This can be done using loco-regional, free flaps or both. OBJECTIVE: The aim of this systematic review is to evaluate the surgical outcomes (mortality, complication rates and functional outcomes) for patients undergoing anterior skull base reconstruction. METHODS: Electronic databases (MEDLINE, EMBASE and Scopus) were systematically searched for relevant articles from 1974 to March 2018. A total of 41 studies were included in this systematic review. No randomized controlled trials were identified; therefore, a meta-analysis was not performed. RESULTS: Mortality from anterior skull base reconstruction were about 0-4% for loco-regional flaps while free flaps were around 0-7%. Overall complications ranged from 0% to 43% in loco-regional flaps, while rate of complications for free flaps ranged from 25% to 66.7%. Flap complications ranged from 0% to 14% for free flaps and 0% to 35% for local flaps. Quality-of-life measures did not differ significantly depending on surgical approach but were worse for patients with malignancies. CONCLUSION: Due to varying standards of reporting of outcomes, lack of a standardized classification system for anterior skull base defects and absence of clinical trials, we were unable to perform a meta-analysis in this systematic review. Recommendations to guide future studies are proposed.

Use of rotational periosteal flaps in primary repair of sinofacial fractures in seven horses.

Case history: Medical records were reviewed of horses (n = 7) undergoing surgery for fracture of one or more facial bones extending into the paranasal sinuses that was repaired primarily within 24 hours of the time of injury using a rotational periosteal flap, between April 2009 and May 2017. A kick from another horse was the cause of the injury of three horses, and one horse was injured when it collided with a tree. The cause of the injury of three horses was unknown.Clinical findings and treatment: Fractures were of the right maxillary bone in two horses, the left maxillary bone in two horses, the left frontal and left nasal bones in two horses, and the right frontal bones in one horse. The fracture of all but one horse was accompanied by an open wound. The fracture of all seven horses was reduced, stabilised, and covered with a rotational, periosteal flap. Surgery was carried out while standing in six horses, and while anesthetised in one horse. All horses had a deficit in the fractured facial bones after the fracture was reduced. Four horses had complications following surgery, but all horses were reported to have excellent cosmetic outcomes and had retuned to their previous level of activity, as reported by their owners.Clinical relevance: Covering a primarily repaired sinofacial fracture of a horse with a rotational periosteal flap resulted in good cosmetic outcomes, and may be especially beneficial if the fracture is accompanied by loss of bone.

Reconstruction of midface defects using local flaps: An algorithm for appropriate flap choice.

BACKGROUND: Local flap surgery is commonly performed to cover defects with appropriate skin color and texture match. The purpose of this study was to present an algorithm for choosing an appropriate flap when reconstructing a midface defect using a local flap. METHODS: Between February 2013 and February 2019, 38 patients with midface defects underwent local flap surgery. All defects larger than 3 cm in diameter were reconstructed with perforator-based transposition flaps. Defects smaller than 3 cm in diameter were reconstructed differently depending on their location. Defects near the nasolabial fold (NLF) were reconstructed with perforator-based transposition flaps, whereas defects just on the NLF were reconstructed with VY advancement flaps. Defects distant from the NLF were also reconstructed with VY advancement flaps. RESULTS: Perforator-based transposition flaps were used in 22 cases and VY advancement flaps were used in 16 cases according to our new algorithm. All flaps survived without any complications. The aesthetic results were superior for VY advancement flaps, with higher patient satisfaction scores. The skin color match was similar for both flaps, but the contour was more natural in advancement flaps than in transposition flaps. However, transposition flaps had the benefits of being able to cover relatively large defects and allowing the donor scar to be hidden in a wrinkle line. CONCLUSION: The most suitable local flap for coverage of a midface defect can be chosen based on the patient's condition. By following our algorithm, appropriate reconstructions can be performed, with satisfactory results.

Comparison of sartorius muscle-pedicle and circumflex iliac deep bone flap grafts in the treatment of early non-traumatic osteonecrosis of femoral head in young adults.

OBJECTIVE: The aim of this study was to retrospectively compare and evaluate the midterm curative effect of two different bone flap grafts in the treatment of early non-traumatic osteonecrosis of the femoral head (ONFH). METHODS: A total of 180 patients (199 hips) with early non-traumatic ONFH received surgical treatment by sartorius muscle-pedicle bone flap graft (SMBF) (104 patients, 64 males and 40 females; mean age 34.67 ± 3.24 years) or circumflex iliac deep bone flap graft (CIDBF) (76 patients, 44 males and 32 females; mean age: 35.54 ± 3.37 years) from July 2004 to July 2009. The comparison between the groups was made with Harris score before and after surgery, length of incision, operative time, amount of bleeding, postoperative X-ray. Association Research Circulation Osseous (ARCO) staging was performed. RESULTS: The preoperative Harris hip score of two groups were 68.26 ± 1.26 and 69.35 ± 1.31, respectively. Patients' ARCO staging indicated 36 hips of stage IIa, 115 hips of stage IIb and 48 hips of stage IIc. The etiology of ONFH mainly including hormones (93 patients), alcohol (64 patients) and other (23 patients). The mean follow-up time of SMBF and CIDBF groups were (51.78 ± 2.35) and (52.73 ± 3.71) months, respectively. The time of removing sutures, operation time, amount of bleeding and length of incision in SMBF group were superior to those in the CIDBF group, and those differences between the SMBF and CIDBF groups were not significant (all p values > 0.28). The Harris score between the two groups was similar after operation and postoperative 12 month, and the difference was not statistically significant (p > 0.05), whereas the difference of the postoperative 24 and 48 months was statistically significant (p Ë‚ 0.05). X-ray analysis showed improvement of osteonecrosis in both two groups after surgery, and as time went on, the total hip amount decreased, the replacement amount increased. CONCLUSION: Both bone flap grafts appear to be effective methods for treatment of early osteonecrosis of femoral head (ARCOⅡ), and the SMBF is a relatively simple technique and easy for mastering, and it is a reliable method for clinical application. LEVEL OF EVIDENCE: Level III, Therapeutic Study.

Single-stage helical rim reconstruction using a post-auricular bipedicled flap.

BACKGROUND: Middle-third helical rim defects may arise from trauma or oncological resection, and pose a challenging reconstructive problem. Reconstructing defects larger than 2 cm using traditional methods commits patients to the inconvenience of staged procedures. METHOD: This paper describes a single-stage helical rim reconstruction technique using a post-auricular bipedicled flap and ipsilateral conchal cartilage graft for delayed middle-third helical rim reconstruction. RESULTS: Two examples of this technique used in post-trauma and oncological reconstruction cases are presented, with pre- and post-operative photographs provided for demonstration. CONCLUSION: Contralateral graft harvest and staged operations for helical rim reconstruction are associated with donor site morbidity and the inconvenience of multiple operations to achieve the desired reconstructive outcome. Our single-stage helical rim reconstruction technique was well tolerated by patients, and showed satisfactory aesthetic results in terms of size and symmetry.

An Alternative Rhinoplasty Technique: Rotational Spreader Flap ("Rabbit Flap").

BACKGROUND: In modern rhinoplasty, septal cartilage is the most commonly used graft material. It is a big challenge if septal cartilage is insufficient. We present an alternative technique named the "rabbit flap," created from the cephalic portion of the lower lateral cartilage to show its effectiveness on nasolabial angle, nasal axis deviation, and nasal dorsal line. METHODS: An alternative flap, called a "rabbit flap," is constituted from the cephalic portion of the lower lateral cartilage (LLC). The key for this flap's success is in not cutting the connection between the lateral and medial crus of the alar cartilage. The flap is rotated and placed between the upper lateral cartilage and the septum to ensure a spreader graft effect; it can also be moved forward and backward to adjust the nasal tip rotation. Patients whose minimum width of LLC was 12 mm were included in this study. We subjectively evaluated the results of this technique for 24 patients who completed the rhinoplasty outcomes evaluation (ROE) questionnaire and objectively by measuring the nasal axis and nasolabial angles in the preoperative and postoperative first-year periods. RESULTS: There were significant improvements in ROE, nasal axis deviation, and nasolabial angle scores when preoperative and postoperative first-year controls were compared (p < 0.001). We also observed no complications. CONCLUSIONS: With this technique, we can correct both a nasal tip rotation and a mild nasal axis deviation. Moreover, we can achieve a proper nasal dorsal line and prevent an inverted V deformity. By expanding the internal nasal valve, a functionally effective surgery can be performed. However, the LLC must be strong enough to avoid alar collapse. In light of our results, we believe that the technique we call the "rabbit flap" can be used as an alternative rhinoplasty technique. LEVEL OF EVIDENCE IV: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .

Rational and simplified nomenclature for buccinator myomucosal flaps.

BACKGROUND: Reconstruction of moderate-sized mucosal defects of the oral cavity or oropharynx represents a surgical challenge. Buccinator myomucosal flaps seem to provide "ideal reconstruction" of oral/oropharyngeal defects because they carry a thin, mobile, well-vascularized, and sensitive tissue, like that excised or lost. Nevertheless, these flaps are not immediately popular because of confusion surrounding the complex terminology used to name them. METHODS: After a retrospective study on our experience and a literature review, the authors propose a new rational and simplified nomenclature for the classification of buccinator myomucosal flaps, which clarifies the source vessel, the composition of the flap, and the type of transfer. RESULTS: According to this nomenclature, six types of buccinator myomucosal flaps are described. CONCLUSIONS: This proposed nomenclature may bring a consensus on the classification of buccinator myomucosal flaps and can help their spread.

Flap Basics I: Rotation and Transposition Flaps.

In many cases of complex facial defects, because of advanced cutaneous malignancies, primary wound closure is impossible. In these instances, ideal results can be obtained through recruitment of adjacent tissue with the use of local flaps. Advances in local flap techniques have raised the bar in facial reconstruction; however, acceptable results to the surgeon and patient require high levels of planning and surgical technique. Defects resulting from Mohs surgery and other traumatic injuries can typically be repaired with local flaps. A well-planned and executed local flap can lead to excellent cosmetic results with minimal distortion of the surrounding facial landmarks.

Flap Basics II: Advancement Flaps.

A mastery of advancement flap design, selection, and execution greatly aids the surgeon in solving reconstructive dilemmas. Advancement flaps involve carefully planned incisions to most efficiently close a primary defect in a linear vector. Advancement flaps are subcategorized as unipedicle, bipedicle, V-to-Y, and Y-to-V flaps, each with their own advantages and disadvantages. When selecting and designing an advancement flap, the surgeon must account for primary and secondary movement to prevent distortion of important facial structural units and boundaries.

Flap Basics III: Interpolated Flaps.

Paramedian forehead and melolabial flaps are the most common examples of interpolated flaps used by facial plastic surgeons and are excellent options for reconstruction of the midface after Mohs surgery. They provide superior tissue match in terms of thickness, texture, and color, while leaving minimal defects at the tissue donor sites. The main advantage of interpolated flaps is the robust blood supply, which can be either axial of randomly based, and the maintenance of the integrity of facial landmarks. The main disadvantage is the frequent need for a multistage procedure, which eliminates some patients from consideration.