How we do it: robotic-assisted distal ureterectomy with ureteral reimplantation

ABSTRACT Background: High risk upper tract urothelial carcinoma (UTUC) is typically managed with radical nephroureterectomy, however, renal preservation can be attempted when UTUC is localized to the distal ureter in the presence of chronic kidney disease (1-3). Distal ureterectomy is typically managed with a ureteral reimplantation and psoas hitch in order to maintain urothelial continuity, to avoid comprising the contralateral ureter, and reducing risk of chronic urinary tract infections and electrolyte abnormalities (4). We present our case of distal ureteral UTUC managed robotically with a distal ureterectomy with ureteral reimplantation. Technique and Follow-Up: Initially, an Orandi needle on a resectoscope circumscribed the left ureteral orifice. Next, robotically, the retroperitoneum was exposed and a left sided pelvic lymphadenectomy was completed. The left ureter was mobilized and the diseased ureteral segment was transected. The mobilized bladder was sutured to psoas fascia. After a cystotomy, the ureter was re-anastomosed to the bladder. The patient was discharged on postoperative day three and re-evaluated one week later with a cystogram. Final pathology was downgraded to non-invasive low-grade papillary urothelial carcinoma with negative lymph nodes and margins. Conclusion: High risk UTUC localized to the distal ureter in the setting of chronic kidney disease can be managed with a distal ureterectomy (3). Robotic distal ureterectomy with ureteral reimplantation can be assisted by an Orandi needle to achieve negative margins. Utilizing a robotic technique can offer challenges with the ureteral spatulation and reanastomosis (5-7). By fixating the ureter to the bladder prior to reanastomosis, our technique offers a solution for these difficulties.

Origen anómalo de una de las ramas de la arteria pulmonar (OAAP): tratamiento quirúrgico y resultados / Anomalous origin of one of the branches of the pulmonary artery (AOPA): Surgical treatment and outcome

Resumen Introducción: El origen anómalo de una de las ramas de la arteria pulmonar procedente de la aorta ascendente es poco frecuente. Objetivo: Identificar las características clínicas y quirúrgicas de los pacientes sometidos a reimplante de la rama afectada. Método: Se realizó un estudio observacional, transversal, descriptivo, retrospectivo y retrolectivo, en el que se incluyeron los pacientes diagnosticados de origen anómalo de alguna de las ramas de la arteria pulmonar y que fueron tratados mediante cirugía correctiva en el Instituto Nacional de Cardiología Ignacio Chávez, en el periodo del 1 de enero de 2003 al 31 de enero de 2019. De los expedientes se extrajeron las características demográficas, los antecedentes quirúrgicos, los diagnósticos, los reportes ecocardiográficos y tomográficos, la técnica quirúrgica y el estado posquirúrgico. Resultados: Se encontraron nueve pacientes sometidos a cirugía de corrección, con un promedio de edad de 2 ± 2 años, un peso de 11.4 ± 1.5 kg y una talla de 82 ± 15 cm. El 67% fueron de sexo masculino. La rama afectada con más frecuencia fue la derecha; el 68% se originaban directamente de la aorta y el 42% de un conducto arterioso persistente. La corrección con circulación extracorpórea tuvo un tiempo promedio de pinzamiento aórtico de 35 minutos y de soporte circulatorio de 45 minutos. Se utilizó el implante directo o con material sintético. Las complicaciones fueron falla ventricular, sangrado, arritmias y neumonía nosocomial. La mortalidad fue del 11%. Conclusiones: El tratamiento quirúrgico para el reimplante de la rama anómala de la arteria pulmonar es el procedimiento de elección, y con cuidados quirúrgicos y posteriores tiene un buen pronóstico a mediano y largo plazo.

Abstract Introduction: The anomalous origin of one of the branches of the pulmonary artery from the ascending aorta is rare. Objective: To identify the clinical and surgical characteristics of the patients undergoing reimplantation of the affected branch. Method: An observational, cross-sectional, descriptive, retrospective and retrolective study was performed; patients diagnosed with anomalous origin of one of the branches of the pulmonary artery and treated by corrective surgery at the Instituto Nacional de Cardiología Ignacio Chavez, in the period from January 1, 2003 to January 31, 2019, were included. It was extracted from the files: demographic characteristics, surgical antecedents, diagnoses, echocardiographic and tomographic reports, surgical technique and post-surgical status. Results: Nine patients underwent correction surgery, with an average age of 2 ± 2 years, 11.4 ± 1.5 kg and height 82 ± 15 cm; 67% were male. The most frequent affected branch was the right, 68% originated directly from the aorta and 42% from a patent ductus arteriosus. The correction with extracorporeal circulation had an average aortic cross-clamp of 35 minutes and circulatory support of 45 minutes, the direct or synthetic implant was used. The complications were ventricular failure, bleeding, arrhythmias and nosocomial pneumonia. Mortality was 11%. Conclusions: Surgical treatment for reimplantation of the anomalous branch of the pulmonary artery is the procedure of choice, which with surgical and subsequent care has a good prognosis in the medium and long term.

Reconstrucción en amputaciones distales de dedos en niños con injerto compuesto y vendaje semioclusivo / Reconstruction of distal finger amputations in children with composite autograft and semi-oclusive dressing

La reconstrucción de una amputación distal de dedo en un niño es un desafío. Los procedimientos propuestos son muchos, y los resultados no han sido buenos. La reconstrucción con reposición del segmento a modo de injerto compuesto, o con técnicas microquirúrgicas, parece ofrecer la mejor de las posibilidades, pues se conservan estructuras irremplazables, como el lecho ungueal y el hiponiquio, lo que permite que los niños mantengan un pulpejo anatómico y con función normal. Presentamos una serie de tres pacientes pediátricos tratados con una nueva técnica, que combina la reposición del segmento, como un injerto compuesto, y el uso de curación semioclusiva (composite autograft and semi-oclussive dressing, CASOD, en inglés). Hemos observado buenos resultados.

The reconstruction of finger tip amputation in children is challenging. There are many procedures described to treat this injury, none of which present optimal results. Repositioning of the amputated segment as an autograft or with microsurgical techniques seems to offer the best outcome. It enables the preservation of otherwise irreplaceable structures, such as the nail bed and the hyponychium, thus enabling children to mantain an anatomically and functionally normal finger pad. We present a series of three pediatric patients treated with tha new technique, which combines composite autograft and semi-oclusive dressing (CASOD). The results observed so far have been promising.

Reabilitação do polegar reimplantado: avaliação dos resultados funcionais em uma unidade de saúde no Rio de Janeiro / Rehabilitation of the replanted thumb: evaluation of functional results in a health unit in Rio de Janeiro

Introdução: O polegar é o dedo de maior importância funcional da mão, por isso a justificativa de reimplantação e reabilitação do mesmo. Objetivo: Realizar uma análise retrospectiva dos resultados, via revisão de prontuários de pacientes submetidos à reimplante de polegar, realizados pelo Serviço SOS-Reimplante do Hospital Estadual Adão Pereira Nunes. Metodologia: Trata-se de um estudo retrospectivo com amostra de conveniência, abrangendo o período entre janeiro de 2010 a dezembro de 2015, realizado através de prontuários de pacientes submetidos a processo de reimplante de polegar, atendidos no Serviço de Terapia Ocupacional/TO-Mão no Hospital estadual Adão Pereira Nunes, em Duque de Caxias, Rio de Janeiro. Foram coletadas informações sociodemográficas, além de força muscular, sensibilidade e tempo de reabilitação. Resultados: Foram revisados 63 prontuários de pacientes submetidos a procedimento de reimplante de polegar, na faixa etária de 18 a 65 anos. Quanto ao local do acidente, 76,1% dos casos foi decorrente de acidente de trabalho e 23,2% acidentes domésticos. Ao observamos à lateralidade da lesão, 92% dos pacientes eram destros, enquanto o polegar com maior número de lesões foi o esquerdo, com um total de 82,5% pacientes. Quanto ao nível da lesão, 25,3% pacientes sofreram lesão na falange proximal, 20,8% pacientes sofreram lesão na região da interfalangeana, e 53,9% dos pacientes apresentaram lesão na falange distal. Dentre os reencaminhados para nova avaliação, 28,5% pacientes, foram submetidos a outros procedimentos cirúrgicos. Houve ganho de força em global em 88,2% dos pacientes em de sensibilidade. Conclusão: A maioria dos pacientes que sofreram reimplante do polegar conseguiram obter ganho de força muscular e sensibilidade, conseguirem retornar as suas atividades laborais, com um tempo de reabilitação que variou de 4 a 14 meses. (AU)

Introduction: The thumb is the greatest functional finger of the hand, which is justifies its replantation and rehabilitation. Objective: To carry out a retrospective analysis of the medical records of patients undergoing thumb reimplantation, performed by the SOS-Reimplantation Service of the State Hospital Adão Pereira Nunes. Methodology: This is a retrospective study with a convenience sample, covering the period between January 2010 and December 2015, conducted thorough medical records of patients undergoing the process of thumb replantation, attended at the Occupational Therapy Service / TO - Hand at the Adão Pereira Nunes State Hospital, in Duque de Caxias, Rio de Janeiro. Sociodemographic information was collected, in addition to muscle strength, sensitivity, and rehabilitation time. Results: 63 medical records of patients who underwent thumb reimplantation procedure, aged 18 to 65 years, were reviewed. As for the accident site, 76.1% of the cases were due to occupational accidents and 23.2% to domestic accidents. When observing the laterality of the lesion, 92% of the patients were righthanded, while the thumb with the largest number of lesions was left, with a total of 82.5% patients. As for the level of the lesion, 25.3% of patients suffered an injury to the proximal phalanx, 20.8% of patients suffered an injury to the interphalangeal region, and 53.9% of the patients had lesions to the distal phalanx. Among those referred for further evaluation, 28.5% of patients underwent other surgical procedures. There was overall strength gain in 88.2% of patients in sensitivity. Conclusion: Most patients who underwent thumb reimplantation were able to obtain gains in muscle strength and sensitivity, being able to return to their work activities, with a rehabilitation time that varied from 4 to 14 months. (AU)

Reimplante de falange distal de dedo sin anastomosis venosa con anestesia local / Distal phalanx replantation under local anesthesia and without venous anastomosis

Presentamos a un paciente que sufrió una amputación traumática de la falange distal del 5to dedo de su mano izquierda, y fue tratado mediante un reimplante sin anastomosis venosa. En el mismo acto quirúrgico, se le realizó una artrodesis definitiva con clavijas. La cirugía se efectuó con anestesia troncular del dedo, por lo cual no se requirió de un anestesista ni fue necesario un tiempo adecuado de ayuno. Debido a la localización distal de la amputación y a la ausencia de una vena dorsal viable para ser anastomosada, se optó por un drenaje venoso controlado mediante la extracción de la placa ungueal, el frotado del lecho ungueal y la colocación periódica (cada 3 h, por 7 días) de una gasa impregnada con heparina. Además, el paciente fue anticoagulado con enoxaparina 40 mg y ácido acetilsalicílico cada 24 h, por 21 días. El reimplante fue exitoso. Nivel de Evidencia: IV

We present a patient who experienced a traumatic amputation of his left fifth finger distal phalanx, and was treated using replantation without venous anastomosis. The same surgical procedure also included a final arthrodesis with Kirschner wires. Surgery was performed with digital block anesthesia, which did not require the presence of an anesthesiologist nor fasting. The distal level of the amputation and the lack of viable options for dorsal vein anastomosis motivated our decision for venous drainage controlled by nail-plate removal, nail-bed scrubbing and periodic (every 3 hours during 7 days) dressing with heparin-impregnated gauze. In addition, the patient received anticoagulant therapy with aspirin and enoxaparin 40 mg every 24 hours for 21 days. The replantation procedure was a success. Level of Evidence: IV

Evolving surgical management of pediatric vesicoureteral reflux: is open ureteral reimplantation still the 'Gold Standard'?

ABSTRACT Vesicoureteral reflux, the retrograde flow of urine from the bladder into the upper urinary tract, is one of the most common urologic diagnoses in the pediatric population. Once detected, therapeutic options for urinary reflux are diverse, ranging from observation with or without continuous low-dose prophylactic antibiotics to a variety of operative interventions. While a standardized algorithm is lacking, it is generally accepted that management be tailored to individual patients based on various factors including age, likelihood of spontaneous resolution, risk of subsequent urinary tract infections with renal parenchymal injury, and parental preference. Anti-reflux surgery may be necessary in children with persistent reflux, renal scarring or recurrent pyelonephritis after optimization of bladder and bowel habits. Open, laparoscopic/robot-assisted and endoscopic approaches are all successful in correcting reflux and have been shown to reduce the incidence of febrile urinary tract infections.

Comparison of Cohen and Lich-Gregoir ureteral reimplantation in the surgical management of primary unilateral vesicoureteral reflux in children

SUMMARY OBJECTIVE Vesicoureteral reflux (VUR) represents one of the most significant risk factors for acute pyelonephritis in children. Various intravesical and extravesical techniques have been described for the surgical correction of VUR. The aim of our study was to compare the results of open intravesical and extravesical procedures for unilateral primary VUR in children. METHODS Between January 2012 and August 2018, 38 children with primary VUR who underwent open ureteral reimplantation surgery were retrospectively reviewed. The Cohen (intravesical) and the Lich-Gregoir (extravesical) approach were grouped as groups A and B, respectively. The groups were compared for age, gender, preoperative reflux grade, presence of lower urinary tract symptoms, operation time, discomfort and pain, analgesic requirements, duration of hematuria, postoperative complications, and hospital stay. All the parameters were statistically compared. RESULTS There were 38 patients in this study. Group A had 18 patients, and group B had 20 patients. The mean operative time was significantly shorter in group B than in group A. The mean hospital stay was also shorter in group B. The urethral foley stay period was 4.7±0.9 days 2±0 days (p = 0.000*), respectively, for group A and B. Macroscopic hematuria was seen in group A. The objective pain scale was worse after intravesical surgery. Analgesic requirements were higher in group A (p =0.131). CONCLUSION Intravesical and extravesical ureteroneocystostomy methods are equally successful and feasible in the treatment of primary unilateral VUR. The Cohen technique is associated with a longer and more painful hospital stay, gross hematuria, and longer operative time, compared to the Lich-Gregoir technique.

RESUMO OBJETIVO O Refluxo Vesicoureteral (RVU) representa um dos mais importantes fatores de risco para pielonefrite aguda em crianças. Diversas técnicas intra e extravesicais já foram descritas para a correção cirúrgica do RVU. O objetivo do nosso estudo é comparar os resultados de procedimentos extravesicais e intravesicais abertos para o tratamento de RVU primário unilateral em crianças. METODOLOGIA Entre janeiro de 2012 e agosto de 2018, 38 crianças com RVU primário foram submetidas a cirurgia aberta de reimplante ureteral. Esses casos foram retrospectivamente revisados. As abordagens de Cohen (intravesical) e Lich-Gregoir (extravesical) foram agrupadas nos grupos A e B, respectivamente. Os grupos foram comparados quanto à idade, sexo, grau de refluxo pré-operatório, presença de sintomas no trato urinário inferior, tempo de operação, desconforto e dor, necessidade de analgésicos, duração de hematúria, complicações pós-operatórias e tempo de internação. Todos os parâmetros foram comparados estatisticamente. RESULTADOS No total, 38 pacientes foram incluídos neste estudo. O grupo A teve 18 pacientes e o grupo B, 20. O tempo médio de operação foi significativamente menor no grupo B do que no grupo A. O tempo médio de internação também foi menor no grupo B. O tempo de uso do foley uretral foi de 4,7 ± 0,9 dias e 2±0 dias (p = 0,000*) , respectivamente, para o grupo A e B. Hematúria macroscópica foi observada no grupo A. A pontuação na escala objetiva de dor foi pior após a cirurgia intravesical. A necessidade de analgésicos foi maior no grupo A (p = 0,131). CONCLUSÃO As técnicas extravesicais e intravesical de ureteroneocistostomia são igualmente bem-sucedidas e viáveis para o tratamento de RVU primário unilateral. A técnica de Cohen está associada a um período de internação mais longo e mais doloroso, hematúria e maior tempo operatório, em comparação com a técnica de Lich-Gregoir.

Revascularización y reimplante digital. Revisión de conceptos actuales / Digital reimplantation adn revascularization. current concets

El reimplante es la obra maestra del cirujano de mano, donde incluye la técnica microquirúrgica para la anastomosis de arteria, vena y reparación del nervio, la osteosíntesis de los huesos y el manejo de tejidos blandos como los tendones y la piel Indicaciones absolutas, amputación del pulgar, el pulgar es quizás el elemento más importante de la mano, dado que le da funcionalidad a la extremidad, sin importar la movilidad final ni la sensibilidad debe reimplantarse el pulgar. No se debe intentar el reimplante en lesiones aplastantes de los dedos, amputación en más de un nivel, presencia de lesiones que amenacen la vida del paciente, enfermedades graves del paciente, isquemia prolongada, amputaciones en paciente con alteraciones psiquiátricas. Clasificación según Tamai es la mas utilizada. Se explica además como se debe transportar la parte amputada. La técnica microquirúrgica es lo mas importante para el desenlace. La rehabilitación física y posibles complicaciones.

Reimplantation is the masterpiece of the hand surgeon, which includes the microsurgical technique for artery anastomosis, vein and nerve repair, osteosynthesis of the bones and the management of soft tissues such as tendons and skin. Absolute indications, Amputation of the thumb: the thumb is perhaps the most important element of the hand because it gives functionality to the limb, regardless of the final mobility or sensitivity it should be reimplanted. Reimplantation should not be attempted in crushing lesions of the fingers. Crush injury of the fingers may have multilevel amputation and microcirculation injury that may not be susceptible of repair. Amputation at more than one level, the presence of life-threatening injuries, serious illnesses of the patient, prolonged ischemia, amputations in a patient with psychiatric disorders. Tamai Classification is the most used. We explain the correct way to transport the amputated part. The microsurgical technique is the most important in order to avoid complications. We also explain the physical therapy and complications.

Tooth loss awareness and reasons for non-replacement of missing teeth among nurses at Jos University Teaching Hospital, Jos, Nigeria

Objective: Full complement and replacement of lost teeth improves oral health and quality of life. The objective of this study was to assess the level of awareness of factors that can prevent premature loss of teeth and the reason for non-replacement of missing/lost teeth among nurses in a tertiary health institution. Methods: This study was a descriptive cross-sectional study, 251 nurses of the Jos University Teaching Hospital participated. Self-administered questionnaires were used for data collection. Analysis of data was done with IBM SPSS version 23.0. Results: The mean age of the 251 nurses was 38±9.88. 174(69.3%) were females while 77(30.7%) were males. Out of 91(36.3%) that had missing teeth, 16(17.6%) actually replaced their missing teeth with the majority of them representing 81.3% adopting removable acrylic partial denture as modality. Among the 75(82.4%) that did not replace their missing teeth, the reason for the non-replacement by the majority- 40.0% was that they didn't feel replacement was necessary. Conclusion: The awareness level on factors that can prevent premature loss of teeth was observed to be high among the participants, but many have missing teeth that needed replacement. Majority did not replace their missing teeth as a result of low level of awareness of the consequences and probably due to financial challenges and because of the non-coverage of prosthetic treatments by the National Health Insurance Scheme 'NHIS' in Nigeria

The Role of the Hand Surgeon in Microsurgery in Brazil / Atuação do médico cirurgião de mão em microcirurgia no Brasil

Abstract Objective This study evaluates the conditions for microvascular procedures found by hand surgeons in Brazilian clinical practices. Methodology A prospective, observational, and analytical primary clinical research conducted during the 37th Brazilian Congress of Hand Surgery, from March 30th to April 1st, 2017, in Belo Horizonte, in which physicians answered 12 closed, objective, multiple-choice questions regarding their geographic region, type of institution (public or private), microsurgical training, time of experience, technical conditions, the availability of a standby team for emergencies and compensation. Results The study analyzed 143 hand surgeons; among them, 65.7% participants were based at the Southeast region, 13.3% in the Northeast region, 11.9% in the South region, 6.3% in the Central-West region and 2.8% in the North region. Regarding the time of experience, 43.4% of the hand surgeons had less than 5 years, 16.8% had 5 to 10 years, 23.8% 10 to 20 years, and 23% hadmore than 20 years of practice in microvascular surgery. Seven percent of the surgeons had no training in microvascular surgery; for 63.6%, training occurred during medical residency, whereas 30.8% were trained in another institution, and 7.7% in another country. Among these surgeons, 76.9% worked at both private and public hospitals, 14.7% at private hospitals and 5.6% at public hospitals. Regarding compensation, 1.8% of the surgeons considered it adequate, and 98.2%, inadequate in public hospitals, whereas 5.0% considered it adequate, and 95.0%, inadequate in private hospitals. Conclusion This research shows that most surgeons were trained in microsurgery, had never performed reattachments, and considered that compensation is inadequate; moreover, standby teams were not available. There are few, unevenly distributed hand surgeons with microsurgical ability in emergency settings, and their compensation is low.

Resumo Objetivo Avaliar quais as condições que o cirurgião de mão no Brasil tem encontrado na prática clínica para a realização de procedimentos microvasculares. Métodos Pesquisa clínica primária prospectiva, observacional, transversal e analítica; realizada no 37° Congresso Brasileiro de Cirurgia deMão, de 30 demarço a 1 de abril de 2017, em Belo Horizonte. Por meio de aplicação de questionário a médicos do Congresso, com 12 perguntas, respostas objetivas, fechadas ou de múltipla escolha; envolveram a região geográfica, o tipo de instituição, se pública e/ou privada, seu treinamento microcirúrgico, tempo de formação, condições técnicas, presença de equipe de retaguarda para urgências e remuneração. Resultados Um total de 143 médicos foram entrevistados, 65,7% atuavam na região sudeste;13,3% na região nordeste; 11,9% na região sul; 6,3% na região centro-oeste; e 2,8% na região norte. Do total de cirurgiões, 43,4%, atuavam há < 5 anos; 16,8% de 5 a 10 anos; 23,8% de 10 a 20 anos; e 23% há > 20 anos. Do total de cirurgiões, 7,0% não tiveram treinamento em cirurgias microvasculares; 63,6% realizaram treinamento na residência médica, 30,8% em outra instituição, e 7,7%, outro país. Do total de cirurgiões, 5,6% trabalhavam em hospitais públicos, 14,7% em hospitais privados, e 76,9% em ambos. Do total de cirurgiões, 1,8% consideravam adequada a remuneração nas instituições públicas e 5,0% nas instituições privadas; 98,2% consideraram inadequadas as remunerações nas instituições públicas e 95,0% nas instituições privadas. Conclusão A maioria obteve treinamento em microcirurgia, não fazia reimplantes, considerava a remuneração inadequada, e não dispunha de equipe de sobreaviso. Há escassez e má distribuição de cirurgiões de mão com habilidade microcirúrgica nas emergências e baixo valor de reembolso.

Reimplante de dente decíduo: revisão bibliográfica integrativa / Replantation of deciduous tooth: bibliographical and integrative revision

Introdução: Avulsão dental apresenta-se como um dos traumas mais graves e de urgência na Odontologia, incidindo com frequência também nos tecidos de suporte dos dentes onde o dente é avulsionado de seu alvéolo por completo, levando ao comprometimento das funções mastigatória, fonética, estética, oclusão,perda do espaço no arco dental e a possibilidade de trauma subsequente ao germe do dente permanente que já se encontra localizado sob o dente decíduo. O reimplante dental é uma opção já estabelecida em protocolos clínicos de dentes permanentes, comprovando relativo sucesso, e em dentes decíduos o seu prognóstico é sombrio, uma vez que a literatura relata possíveis consequências como anquilose, sequestro e infecção. Métodos: Este estudo objetivou realizar uma revisão bibliográfica do tipo integrativa sobre reimplante de dentes decíduos avulsionados. Resultados: Revelou que há poucas publicações sobre a temática quando considerados todos os indexadores em um mesmo artigo. Conclusão: Há uma controvérsia entre os autores, dos quais uns vão contra citando que o reimplante pode causar anquilose, infecção e danos ao sucessor permanente, enquanto outros veem o reimplante como uma alternativa eficaz

Introduction: Dental avulsion presents as one of the most serious and urgent trauma in dentistry, frequently also affecting teeth supporting tissues where the tooth is avulsed from its entire alveolus, leading to impairment of masticatory, phonetic, aesthetic, occlusion, loss of space in the dental arch, and the possibility of subsequent trauma to the permanent tooth germ that is already located under the deciduous tooth. Dental reimplantation is an established option in clinical protocols of permanent teeth, proving relative success, and in primary teeth its prognosis is bleak since the literature reports possible consequences such as: ankylosis, sequestration and infection. Methods: This study aimed to perform a bibliographic review of the integrative type on reimplantation of avulsed primary teeth. Results: It is revealed that there are few publications on the topic when considering all indexers in the same article. Conclusion: To a controversy among the authors, some of them go against citing that reimplantation can cause ankylosis, infection and damage to the permanent successor, while others see the reimplantation as an effective alternative.

Conversion of Failed Reverse Total Shoulder Arthroplasty to Hemiarthroplasty: Three Cases of Instability and Three Cases of Glenoid Loosening

BACKGROUND: Glenoid loosening and postoperative instability are common causes of failed reverse total shoulder arthroplasty (RTSA). When soft-tissue problems or large glenoid bone defect interferes with reimplantation in revision RTSA, conversion to hemiarthroplasty can be considered. We present a case series of patients who underwent conversion to hemiarthroplasty due to glenoid loosening and early instability after RTSAs, along with clinical results. METHODS: A total of 72 primary RTSAs using the Aequalis prosthesis were performed at our institution from May 2009 to December 2016. Of these, five patients, including one with humeral neck fracture and absent rotator cuff and four with cuff tear arthropathy, underwent conversion to hemiarthroplasty. Another patient who had RTSA at a local clinic underwent hemiarthroplasty at our institution for unresolved postoperative anterior dislocation. The mean age of the six patients was 71.7 years (range, 62 to 76 years), and the mean follow-up period was 24.4 months (range, 18 to 30 months). Clinical assessments were conducted by using the visual analog scale (VAS), American Shoulder and Elbow Surgery (ASES) score, and University of California at Los Angeles (UCLA) shoulder score at the last follow-up. RESULTS: The conversion to hemiarthroplasty in the six patients dramatically improved the mean VAS score (preoperative, 8.1; postoperative, 2.5), ASES score (preoperative, 22.1; postoperative, 56.5), and UCLA score (preoperative, 12; postoperative, 18.1). However, the range of motion was almost unchanged after surgery. CONCLUSIONS: Conversion to hemiarthroplasty can be a good alternative to revision RTSA in patients with serious complications (such as unresolved instability and glenoid loosening) difficult to treat with revision RTSA.

Major Limb Replantation of Lower Leg Amputation with Ipsilateral Distal Femoral Comminuted Fracture in Old Age: A Case Report

The development of microsurgical techniques has also increased the success rate of replantation surgery. This paper reports the results of limb replantation performed on a lower extremity amputation that was associated with crush amputation and an ipsilateral comminuted fracture in and elderly patient. A 68-year-old female presented with a right distal tibia amputation due to a traffic accident. At that time, with a comminuted fracture in the distal femoral condyle, simple wound repair was recommended, but the caregivers strongly wanted replantation. Three years after surgery, normal walking was possible without a cane and the patient was satisfied with the function and aesthetics. What used to be contraindicated in limb replantation in the past are now indications due to the development of microsurgical techniques, surgical experience, and postoperative rehabilitation treatment. If the patient is willing to be treated, good results in contraindications can be obtained.

Evaluation of the periodontal and pulpal healing of replanted rat molars with doxycycline root conditioning

PURPOSE: This study aimed to evaluate periodontal and pulpal healing in replanted rat teeth, preserved under different storage conditions, with or without root conditioning using doxycycline. METHODS: A total of 40 maxillary first molars extracted from 20 Sprague-Dawley rats were stored for different durations under different conditions (5 minutes in dry storage and 60 minutes in Hank's balanced salt solution [HBSS]) and subsequently replanted. The rats were divided into 2 groups based on the use of root surface treatment: the doxycycline group (root surface treated with doxycycline) and the control group (no doxycycline treatment). Eight weeks after replantation, the animals were sacrificed, and the teeth were evaluated using micro-computed tomography (micro-CT) and histomorphometric analysis. RESULTS: In the micro-CT analysis, the doxycycline group showed the same rate of occurrence of periapical radiolucency as was observed in the control group, but a lower degree of root resorption in teeth replanted after 60 minutes of storage in HBSS (P<0.05). In the histomorphometric analysis, the doxycycline group exhibited no improvement in either pulpal or periodontal healing of the replanted tooth after 5 minutes of dry storage, but showed a lower grade of surface root resorption (1.37±0.77) and inflammatory resorption in the teeth stored for 60 minutes in HBSS (1.33±0.71). CONCLUSIONS: In conclusion, doxycycline improved the periodontal healing of replanted teeth stored for 60 minutes in HBSS, whereas doxycycline did not improve periodontal healing of replanted tooth after 5 minutes of dry storage. Within the limits of this study, doxycycline showed more favorable periodontal healing despite delayed replantation.

Clinical Result of a Staged Reimplantation of Fungus Related Periprosthetic Joint Infection after Total Knee Arthroplasty / 대한정형외과학회잡지

PURPOSE: Fungal periprosthetic joint infection (PJI) is a rare but devastating complication following total knee arthroplasty (TKA). On the other hand, a standardized procedure regarding an accurate treatment of this serious complication of knee arthroplasty is lacking. The clinical progress of staged reimplantation in patients who had fungus-related PJI after TKA was reviewed retrospectively. MATERIALS AND METHODS: Ten patients who had a fungal related PJI after TKA between 2006 and 2017 using staged reimplantation surgery were reviewed. These patients were compared with 119 patients who had a PJI in the same period. The failure rate of infection control, intravenous antimicrobial using the period, and the clinical results were evaluated by comparing the range of motion and Korean knee score (KKS) between pre-staged reimplantation and the last follow-up. RESULTS: In the fungal infection group, 7 out of 10 cases (70.0%) had failed in infection control using staged reimplantation and in the non-fungal group, 7 out of 119 cases (5.9%) had failed (p=0.04). In the non-fungal group, the mean duration of antibiotics was 6.2 weeks. In the fungus group, the mean duration of antibiotics was 15.3 weeks, which was 9.1 weeks longer (p < 0.001). The range of motion of the knee was increased in the two groups (p=0.265). At the last follow-up, the KKS was 71.01 points in the non-fungal group and 61.3 points in the fungal group (p=0.012). Erythrocyte sedimentation rate and C-reactive protein (CRP) decreased in the two groups, but the CRP was significantly different in the two groups (p=0.007). CONCLUSION: The treatment of fungus-related PJIs using staged reimplantation showed uneven clinical progress and unsatisfactory clinical improvements compared to non-fungal PJI. Therefore, it is necessary to consider the use of an antifungal mixed cement spacer at resection arthroplasty and oral antifungal agent after reimplantation.

Treatment of a tooth with severe periodontal involvement using intentional replantation: case report

Although intentional replantation is frequently used as a treatment modality for endodontic problems, severe periodontal involvement has usually been regarded as a contraindication. However, there are some studies suggesting that intentional replantation could be a successful treatment alternative for periodontally involved teeth. This paper reports the treatment of a tooth with severe periodontal involvement using intentional replantation. The tooth, which had had root canal therapy due to endodontic-periodontal combined lesion but showed extensive bone loss, was gently extracted and replanted after thorough debridement of the root surface. By intentional replantation, a tooth with severe periodontal involvement in this case could be preserved, without extraction, over the course of a 3-year follow-up period.

The safety of one-per-mil tumescent infiltration into tissue that has survived ischemia

BACKGROUND: The aim of this study was to assess the safety of one-per-mil tumescent injections into viable skin flaps that had survived an ischemic insult, in order to assess the potential suitability of one-per-mil tumescent injections in future secondary reconstructive procedures such as flap revision and refinements after replantation. METHODS: Forty groin flaps harvested from 20 healthy Wistar rats weighing 220 to 270 g were subjected to acute ischemia by clamping the pedicle for 15 minutes. All flaps showing total survival on the 7th postoperative day were randomly divided into group A (one-per-mil tumescent infiltration; n=14), group B (normal saline infiltration; n=13), and group C (control, with no infiltration; n=13) before being re-elevated. Transcutaneous oxygen tension (TcPO₂) was measured before and after infiltration, and changes in TcPO₂ were statistically analyzed using analysis of variance, the paired t-test, and the independent t-test. The viability of flaps was also assessed using the Analyzing Digital Images software at 7 days after the second elevation. RESULTS: Thirty-nine flaps survived to the final assessment, with the sole exception of a flap from group A that did not survive the first elevation. TcPO₂ readings showed significant decreases (P<0.05) following both one-per-mil tumescent (99.9±5.7 mmHg vs. 37.2±6.3 mmHg) and normal saline (103±8.5 mmHg vs. 48.7±5.9 mmHg) infiltration. Moreover, all groin flaps survived with no signs of tissue necrosis. CONCLUSIONS: One-per-mil tumescent infiltration into groin flap tissue that had survived ischemia did not result in tissue necrosis, although the flaps experienced a significant decrease of cutaneous oxygenation.

Effects of the cathepsin K inhibitor with mineral trioxide aggregate cements on osteoclastic activity

OBJECTIVES: Root resorption is an unexpected complication after replantation procedures. Combining anti-osteoclastic medicaments with retrograde root filling materials may avert this resorptive activity. The purpose of this study was to assess effects of a cathepsin K inhibitor with calcium silicate-based cements on osteoclastic activity. METHODS: MC3T3-E1 cells were cultured for biocompatibility analyses. RAW 264.7 cells were cultured in the presence of the receptor activator of nuclear factor-kappa B and lipopolysaccharide, followed by treatment with Biodentine (BIOD) or ProRoot MTA with or without medicaments (Odanacatib [ODN], a cathepsin inhibitor and alendronate, a bisphosphonate). After drug treatment, the cell counting kit-8 assay and Alizarin red staining were performed to evaluate biocompatibility in MC3T3-E1 cells. Reverse-transcription polymerase chain reaction, tartrate-resistant acid phosphatase (TRAP) staining and enzyme-linked immunosorbent assays were performed in RAW 264.7 cells to determine the expression levels of inflammatory cytokines, interleukin (IL)-1β, IL-6, tumor necrosis factor-α (TNF-α) and prostaglandin E2 (PGE2). Data were analyzed by one-way analysis of variance and Tukey's post hoc test (p < 0.05). RESULTS: Biocompatibility results showed that there were no significant differences among any of the groups. RAW 264.7 cells treated with BIOD and ODN showed the lowest levels of TNF-α and PGE2. Treatments with BIOD + ODN were more potent suppressors of inflammatory cytokine expression (p < 0.05). CONCLUSION: The cathepsin K inhibitor with calcium silicate-based cement inhibits osteoclastic activity. This may have clinical application in preventing inflammatory root resorption in replanted teeth.

Effect of calcium hydroxide on inflammatory root resorption and ankylosis in replanted teeth compared with other intracanal materials: a review

Calcium hydroxide (CH) is the gold-standard intracanal dressing for teeth subjected to traumatic avulsion. A common complication after the replantation of avulsed teeth is root resorption (RR). The current review was conducted to compare the effect of CH with that of other intracanal medications and filling materials on inflammatory RR and replacement RR (ankylosis) in replanted teeth. The PubMed and Scopus databases were searched through June 2018 using specific keywords related to the title of the present article. The materials that were compared to CH were in 2 categories: 1) mineral trioxide aggregate (MTA) and endodontic sealers as permanent filling materials for single-visit treatment, and 2) Ledermix, bisphosphonates, acetazolamide, indomethacin, gallium nitrate, and enamel matrix-derived protein (Emdogain) as intracanal medicaments for multiple-visit management of avulsed teeth prior to the final obturation. MTA can be used as a single-visit root filling material; however, there are limited data on its efficacy due to a lack of clinical trials. Ledermix and acetazolamide were comparable to CH in reducing RR. Emdogain seems to be an interesting material, but the data supporting its use as an intracanal medication remain very limited. The conclusions drawn in this study were limited by the insufficiency of clinical trials.

Successful replantation of an amputated helical rim with microvascular anastomosis

Replantation using microvascular anastomosis is considered to be the optimal method in treating the amputated ear in terms of resulting color, texture, and shape. Only a few cases of ear replantation have been reported because it is anatomically difficult to identify suitable vessels for anastomosis. We successfully replanted the amputated helical rim of the ear using single arterial anastomosis. A 37-year-old man had his helical rim amputated by a human bite. The amputee was about 4 × 1 cm in dimension, composed of skin and soft tissue including auricular cartilage. Replantation was performed anastomosing a small artery of the amputee with a terminal branch of the posterior auricular artery. After replantation, intravenous heparinization was performed and prostaglandin E1 and aspirin were administered. Venous congestion was decompressed by stab incisions applied with heparin solution soaked gauze. Venous congestion of the amputee slowly began to resolve at 4 days after the operation. The amputated segment of the helical rim survived completely with good aesthetic shape and color. The authors propose that performing microvascular anastomosis should be attempted especially if it is possible to detect vessels on cut surfaces of ear amputee and stump. Proper postoperative care for venous congestion, arterial insufficiency, and infection should be followed for amputee survival.