Clinical application of 8-0 polypropylene scleral-sutured fixed intraocular lens suspension implantation with the double knots technique in aphakic eyes / 国际眼科杂志(Guoji Yanke Zazhi)

AIM: To observe the clinical efficacy of 8-0 polypropylene scleral-sutured fixed intraocular lens(IOL)suspension implantation with the double knots technique in aphakic eyes.METHODS: Retrospective case series study. The data of 30 aphakic cases(31 eyes, 22 males)that underwent IOL suspension in our hospital from January 2021 to November 2022 were collected. The suspension of IOL(AcrySof IQ or Tecnis ZCB00)was performed by 8-0 polypropylene scleral-sutured with the double knots technique. The visual acuity, intraocular pressure(IOP), IOL position and complications with at least 6 mo of follow-up were observed.RESULTS: The mean preoperative uncorrected visual acuity(UCVA, LogMAR)and best-corrected visual acuity(BCVA, LogMAR)were 2.53±0.78 and 0.35±0.26, respectively, which were 0.58±0.26 and 0.36±0.27 at 6 mo postoperatively, respectively. And the differences in UCVA were statistically significant(t=15.408, P<0.01), whereas the difference in BCVA was not(t=-1.677, P=0.104). There were no intraoperative complications, with IOL position all centered, but 3 eyes had IOL tilt, 2 eyes had intraocular hypertension, 5 eyes had corneal edema, and 1 eye had suture exposure postoperatively. There were no complications such as hyphema, vitreous hemorrhage, macular edema, corneal endothelial decompensation, hypotony, choroidal detachment, retinal detachment, fulminant superior choroidal hemorrhage, endophthalmitis, or others.CONCLUSION: The 8-0 polypropylene scleral-sutured fixed intraocular lens suspension implantation with the double knots technique can improve the postoperative visual acuity of aphakic patients, and fewer complications, which is an option for the treatment of aphakia, dislocation of the lens and ligament abnormalities.

Eight years experience of transanal endoscopic microsurgery

Introduction: Transanal Endoscopic Microsurgery (TEM) is a minimally invasive method for management of different proctologic conditions. Despite widespread use of this method, it is not used widely in Iran. This report is about to describe the application of TEM in managing different proctologic conditions in a tertiary colorectal referral center in Iran regarding methods and complications. Methods: All of the patients' documents such as procedure, method, early postop complications and further operations were actively reviewed and the data were entered in to the database. Results: Since 2012 till the end of 2020 chart review was done and 150 cases of TEM operation were found. The most frequent procedure that was done was resection procedure. Using different energy devices during surgery or suturing versus not suturing the defect were not associated with complication. There was a case of in hospital mortality and one case delayed perianal fistula following TEM. Measurement of lesion distance from anal verge was not significantly different using TEM or colonoscopy. Villous adenomas detected in colonoscopy were mostly associated with malignancy. In evaluated resected lesions most of cases had free base and distance from anal verge or using different energy devices were not associated with obtaining free base. Conclusion: TEM is a safe minimal invasive procedure with acceptable complications that could be helped in managing different proctologic conditions and the results of reviewing our patients revealed the same results that is reported from other colorectal centers. (AU)

Modelo alternativo para o treinamento de técnicas de microssuturas em "patch" de pericárdio bovino / Alternative model for training microsuture techniques in bovine pericardium patches

Introdução: As técnicas microcirúrgicas caracterizam-se pela aplicação de manobras e suturas em estruturas milimétricas com o auxílio de lentes de aumento. São técnicas complexas, utilizadas em diversas especialidades médicas, que demandam grande habilidade e treinamento antes da aplicação em humanos. O objetivo é desenvolver um modelo de baixo custo e alta fidelidade, para o treinamento de técnicas de microcirurgia, utilizando um fragmento de patch de pericárdio bovino. Método: São utilizados para a confecção deste modelo segmentos remanescentes de uma placa de pericárdio bovino, previamente utilizado em reparos vasculares. O material é recortado em duas partes simétricas e suas extremidades fixadas aos campos cirúrgicos, com auxílio de clamps. A borda superior de cada uma das partes é, então, suturada à borda inferior com fio de Prolene 8-0, de maneira que cada uma forme uma estrutura tubular. Posteriormente, as extremidades tubulares livres passam pela dissecção da camada adventícia e são suturadas entre si, mimetizando uma anastomose vascular término-terminal. Resultados: Com o modelo, simulam-se os mesmos inconvenientes/ dificuldades presentes nas suturas vasculares humanas, como a delaminação de camadas, excesso da camada adventícia e risco de sutura inadvertida da parede posterior, provando sua utilidade na aquisição de habilidades microcirúrgicas básicas, sem necessidade de manipulação de tecidos humanos ou animais. A prática neste modelo pode ocorrer dentro do próprio centro cirúrgico e emprega materiais que seriam descartados. Conclusão: A utilização do pericárdio bovino para confecção de suturas milimétricas mimetiza o tecido vascular humano e é um procedimento de baixo custo, que possibilita o treinamento de habilidades microcirúrgicas.

Introduction: Microsurgical techniques are characterized by the application of maneuvers and sutures to millimetric structures with the aid of magnifying lenses. These are complex techniques, used in various medical specialties, which require great skill and training before applying them to humans. The objective is to develop a lowcost and high-fidelity model for training microsurgery techniques using a fragment of bovine pericardium patch. Method: Remaining segments of a bovine pericardium plate, previously used in vascular repairs, are used to create this model. The material is cut into two symmetrical parts, and its ends are fixed to the surgical drapes with the aid of clamps. The upper edge of each part is then sutured to the lower edge with 8-0 Prolene thread so that each one forms a tubular structure. Subsequently, the free tubular ends undergo dissection of the adventitial layer and are sutured together, mimicking an end-to-end vascular anastomosis. Results: With the model, the same inconveniences/ difficulties present in human vascular sutures are simulated, such as delamination of layers, excess of the adventitial layer, and risk of inadvertent suturing of the posterior wall, proving its usefulness in the acquisition of basic microsurgical skills, without need to manipulate human or animal tissues. Practice in this model can take place within the surgical center itself and uses materials that would otherwise be discarded. Conclusion: The use of bovine pericardium to create millimetric sutures mimics human vascular tissue and is a low-cost procedure that allows the training of microsurgical skills.

Validity of the Maturation Stage Method in the Individual Assessment of Midpalatal Suture Ossification Before Maxillary Expansion: A Systematic Review / Validez del Método de la Etapa de Maduración en la Evaluación Individual de la Osificación de la Sutura Palatina Mediana Previo a la Expansión Maxilar: Una Revisión Sistemática

In 2013, midpalatal suture maturation stage assessment was proposed for the evaluation of patients before performing maxillary expansion. In this study, we aimed to analyze the association between the midpalatal suture maturation stages assessed by CBCT, according to the method described by Angelieri et al., and other objective methods used to assess skeletal maturation or bone fusion. A computerized database search was conducted using PubMed, Cochrane Library, SciELO, LILACS, Web of Science, and Scopus, without language restriction. Unpublished literature was searched on ClinicalTrials.gov, the National Research Register, and Pro-Quest Dissertation Abstracts and Thesis database. Authors were contacted when necessary, and reference lists of the included studies were screened. Search terms included midpalatal suture, maturation, correlation, diagnostic performance, classification, evaluation, assessment, and relationship. Quality assessment was performed using the Observational Cohort and Cross-Sectional Studies tool developed by the National Heart, Lung, and Blood Institute. Eleven studies met the inclusion criteria. Of all the studies included, 81.9% had fair qualit y and 18.1% good quality, respectively. Eight out of eleven studies assessed the correlation between the midpalatal suture maturation method and the skeletal maturity evaluated by CVM method (Spearman's correlation coefficient: 0.244-0.908). Two out of eleven studies evaluated the correlation between midpalatal suture maturation method and the skeletal maturity assessed by HWM method (Spearman's correlation coefficient: 0.904-0.905) Even though midpalatal suture maturation stage assessment needs an exhaustive training and calibration process, it is a valid method to evaluate skeletal maturation or bone fusion. From a clinical perspective, for patients at CS4, CS5 and CS6, an assessment of the midpalatal suture on CBCT is indicated. A similar assessment should be done in patients at SMI 7-9.

En 2013, se propuso un nuevo método para la evaluación del estadio de maduración de la sutura palatina mediana para la evaluación de los pacientes antes de realizar la expansión maxilar. En este estudio, nuestro objetivo fue analizar la asociación entre las etapas de maduración de la sutura palatina mediana evaluada en CBCT, según el método descrito por Angelieri et al., y otros métodos objetivos utilizados para evaluar la maduración esquelética o la fusión ósea. Se realizó una búsqueda en las bases de datos PubMed, Cochrane Library, SciELO, LILACS, Web of Science y Scopus, sin restricción de idioma. Se buscó literatura no publicada en ClinicalTrials.gov, el Registro Nacional de Investigación y la base de datos Pro-Quest Dissertation Abstracts and Thesis. Se estableció contacto con los autores cuando fue necesario y se revisaron las listas de referencias de los estudios incluidos. Los términos de búsqueda incluyeron sutura palatina mediana, maduración, correlación, rendimiento diagnóstico, clasificación, evaluación, valoración y relación. La evaluación de la calidad se realizó mediante la herramienta de Estudios transversales y de cohortes observacionales desarrollada por el Instituto Nacional del Corazón, los Pulmones y la Sangre. Once estudios cumplieron con los criterios de inclusión. Del total de estudios incluidos, el 81.9% tuvo calidad regular y el 18.1% calidad buena, respectivamente. Ocho de once estudios evaluaron la correlación entre el método de maduración de la sutura palatina mediana y la madurez esquelética evaluada por el método CVM (coeficiente de correlación de Spearman: 0.244-0.908). Dos de once estudios evaluaron la correlación entre el método de maduración de la sutura palatina mediana y la madurez esquelética evaluada por el método HWM (coeficiente de correlación de Spearman: 0.904-0.905). Aunque la evaluación del estado de maduración de la sutura palatina mediana necesita un proceso exhaustivo de entrenamiento y calibración, es un método válido para evaluar la maduración esquelética o la fusión ósea. Desde una perspectiva clínica, para pacientes en CS4, CS5 y CS6, está indicada una evaluación de la sutura palatina mediana en CBCT. Se debe realizar una evaluación similar en pacientes con SMI 7-9.

Laparorrafia en pacientes con cáncer colorrectal. Hospital Enrique Cabrera, 2019-2021

Fundamento aún no se ha establecido una técnica ideal que permita realizar el cierre laparotómico que garantice la disminución de complicaciones. Objetivo comparar los resultados del cierre de la pared abdominal mediante puntos subtotales internos y puntos totales en pacientes intervenidos por cáncer colorrectal. Métodos: se realizó un estudio descriptivo, prospectivo y transversal en el Hospital General Docente Dr. Enrique Cabrera, en el trienio 2019-2021, con 80 pacientes intervenidos por cáncer colorrectal. Se empleó la prueba Chi-cuadrado, la prueba exacta de Fisher y la prueba U de Mann-Whitney, entre otros. Resultados el tumor se localizó en colon sigmoide en 35 % de los casos de los pacientes con cierre de puntos totales; y en 31,7 % del grupo con cierre mediante puntos subtotales. La cirugía fue urgente en 80 % del grupo con cierre de puntos totales; y electiva en 75 % de los de cierre con puntos subtotales. La incisión fue media supra e infraumbilical en 70 % de los pacientes del grupo con cierre de puntos totales; y xifopubiana en 66,7 % de los del cierre con puntos subtotales. Se presentaron medianas de 3 ± 2 y 1 ± 0 complicaciones para los de cierre con puntos totales y cierre con puntos subtotales, respectivamente. La mediana de la estadía hospitalaria fue mayor en el grupo con cierre de puntos totales (8 ± 6 días). Conclusiones en los pacientes donde se aplicaron puntos subtotales internos para el cierre de la pared abdominal, los resultados fueron mejores que en grupo donde se emplearon puntos totales.

Foundation an ideal technique has not been established yet to allow laparotomic closure to guarantee the reduction of complications. Objective to compare the results of abdominal wall closure using internal subtotal points and total points in patients operated on for colorectal cancer. Methods a descriptive, prospective and cross-sectional study was carried out at the Dr. Enrique Cabrera General Teaching Hospital, from 2019 to 2021, with 80 patients operated on for colorectal cancer. The Chi-square test, Fisher's exact test and the Mann-Whitney U test, among others, were used. Results the tumor was located in the sigmoid colon in 35% of patients with total suture closure; and in 31.7% of the group with closure by subtotal points. Surgery was urgent in 80% of the group with total stitch closure; and elective in 75% of the closing cases with subtotal points. The incision was median supra and infraumbilical in 70% of the patients in the group with total suture closure; and xiphopubic in 66.7% of those at closure with subtotal points. There were medians of 3 ± 2 and 1 ± 0 complications for closure with total stitches and closure with subtotal stitches, respectively. Median hospital stay was longer in the total stitch closure group (8 ± 6 days). Conclusions in the patients where internal subtotal sutures were applied for abdominal wall closure, the results were better than in the group where total sutures were used.

“Pinch and Stretch” technique to overcome ocular hypotony during scleral suturing of recti muscles

During extraocular muscle surgery, an uneventful scleral suture pass is very essential. In presence of normal intraocular tension, the surgery is quite predictable and safe. However, in the presence of significant hypotony, it becomes challenging. Therefore, to mitigate complication rate in these cases, we have adopted a simple technique, that is, the “pinch and stretch” technique. The surgical steps of this technique are as follows: In eyes with significant ocular hypotony, the surgery is initiated with a routine forniceal/limbal peritomy, following which the muscle is sutured and dis-inserted. Using three tissue fixation forceps, the scleral surface is stabilized. Using first forceps, the surgeon rotates the globe toward themself from the muscle stump, and with the remaining two forceps, the assistant pinches and stretches the episcleral tissue in an outward and upward direction just beneath the intended marks. This creates a flat scleral surface with significant firmness. Sutures are passed over this rigid sclera and the surgery is completed without any complications.

Suture manipulation post-trabeculectomy: A practical guide

Background: Trabeculectomy is the gold standard filtration surgery for diverting aqueous from anterior chamber to the subconjunctival space. More than the surgery, postoperative follow?ups and management of the blebs play a critical role in the long?term success. This video is aimed at showing the real?world management of blebs postoperatively. Purpose: This video will serve as a practical guide to the postoperative management of trabeculectomy blebs with specific focus on the suture manipulation. Synopsis: This video will demonstrate various suturing techniques of trabeculectomy and their manipulation in the postoperative period. Complications related to each will be discussed. Highlights: We demonstrate how to place and remove, releasable, and fixed sutures. We also address the practical points on why and when to remove the sutures. Suture?related complications and their management have been shown along with practical examples

Osteological Study of the Parietal Foramen in the Adult Human Skull Bones and its Clinical and Surgical Correlations / Estudio Osteológico del Foramen Parietal en los Huesos del Cráneo Humano Adulto y sus Correlaciones Clínicas y Quirúrgicas

SUMMARY: Parietal emissary foramina (PEF) are small holes, which are localized between the middle and posterior thirds of the parietal bone posterior surface close to the sagittal suture. PEF are important structures that protect the parietal emissary vein, which passes through it. During neurosurgery procedures, parietal foramina (PF) knowledge is crucial. This work aimed to evaluate presence and location of the PF in the skull of an adult human. Moreover, measure the distance amidst PF and the sagittal suture's midline to ascertain its clinical repercussions. 74 adult human skulls, without gross pathology, were observed for the PF's existence. The PF's and sagittal suture's midline distance were measured. According to the PF patterns of presence, five groups were distributed. Finally, specimens were photographed and subjected to statistical analysis. The PF was absent in 7 skulls (9.5 %). There were 9 skulls (12.2 %) exhibited central parietal foramen where the parietal foramen lies on the sagittal suture. 17 skulls (23 %) showed right unilateral parietal foramen, whereas 15 skulls (20.3 %) demonstrated left unilateral parietal foramen. The final 26 skulls (35.1 %) exhibited bilateral parietal foramen. This descriptive study supplies valuable information of PF variations, which is crucial for neurosurgeons in modifying surgical techniques and procedures to alleviate injury to PF-emerging structures such as emissary veins.

Los forámenes emisarios parietales (FEP) son pequeños orificios que se localizan entre los tercios medio y posterior de la superficie posterior del hueso parietal, cerca de la sutura sagital. Los FEP son estructuras importantes que protegen la vena emisaria parietal, que lo atraviesa. Durante los procedimientos de neurocirugía, el conocimiento de los forámenes parietales (FP) es crucial. Este trabajo tuvo como objetivo evaluar la presencia y ubicación del FP en el cráneo de hombres adultos, además, medir la distancia entre el FP y la línea mediana de la sutura sagital para conocer su repercusión clínica. Se examinaron 74 cráneos humanos adultos, sin patología grave, para determinar la existencia del FP. Se midió la distancia de la línea mediana de la sutura sagital y del FP. De acuerdo con los patrones de presencia del FP, se distribuyeron en cinco grupos. Finalmente, los especímenes fueron fotografiados y sometidos a análisis estadístico. El PF estaba ausente en 7 cráneos (9,5 %). Hubo 9 cráneos (12,2 %) que presentaban un PF central localizándose en la sutura sagital. 17 cráneos (23 %) presentaban un FP unilateral derecho, mientras que 15 cráneos (20,3 %) se observó un FP unilateral izquierdo. Los 26 cráneos restantes (35,1 %) exhibieron FP bilaterales. Este estudio descriptivo proporciona información valiosa sobre las variaciones del FP, que es fundamental para los neurocirujanos en el momento de modificar las técnicas y los procedimientos quirúrgicos para aliviar las lesiones de las estructuras emergentes del FP, como las venas emisarias.

Rotura aguda del tendón de Aquiles tratadas quirúrgicamente con Técnica de Mínimo Abordaje. Resultados clínicos y funcionales a un año de seguimiento / Acute rupture of the Achilles tendon surgically treated with the Minimal Approach Technique. Clinical and functional results at one year of follow-up

Se deben tener consideraciones especiales cuando se realizan reparaciones quirúrgicas del tendón de Aquiles. Su anatomía e irrigación particular plantean desafíos únicos para el manejo, y tener comprensión profunda de estas características es crucial para escoger el tratamiento adecuado y lograr resultados exitosos. El objetivo de este trabajo es analizar la eficiencia de la reparación quirúrgica de la rotura aguda del tendón de Aquiles con técnica de Dresden, entre el 2015 y el 2021. Se realizó un estudio de tipo analítico, observacional, longitudinal y prospectiva. El análisis del aspecto estadístico fue a través de estadística descriptiva y asociación de las variables. Se incluyeron 34 pacientes con un promedio de 42 años, la mayoría de sexo masculino. Al aplicar las escalas VISA-A se obtuvo un promedio de 12 puntos, 67,5 puntos a los 6 meses y 80,5 puntos a los 12 meses. En la encuesta SF-12 a los 6 meses se obtuvo un promedio de 68,5 puntos y 80 puntos a los 12 meses; un paciente presentó rechazo de la sutura y 6 afirmaron algún grado de edema residual aun al año de la cirugía. La reparación quirúrgica con técnica de Dresden mejora la funcionabilidad del tendón de malos resultados a regulares y buenos resultados al año de seguimiento. El 68% de la población estudiada afirmó que se encuentran satisfechos con la cirugía(AU)

Special considerations must be made when performing surgical repairs of the Achilles tendon. Its particular anatomy and blood supply pose unique management challenges, and a thorough understanding of these characteristics is crucial to choosing the right treatment and achieving successful results. The objective of this work is to analyze the efficiency of the surgical repair of the acute rupture of the Achilles tendon with the Dresden technique, between 2015 and 2021. An analytical, observational, longitudinal and prospective study was carried out. The analysis of the statistical aspect was through descriptive statistics and association of the variables. 34 patients with an average age of 42 years were included, most of them male. When applying the VISA-A scales, an average of 12 points was obtained, 67,5 points at 6 months and 80,5 points at 12 months. In the SF-12 survey at 6 months an average of 68,5 points and 80 points at 12 months were obtained; One patient presented rejection of the suture and 6 reported some degree of residual edema even one year after surgery. Surgical repair with the Dresden technique improves the functionality of the tendon from poor to regular results and good results after a year of follow-up. 68% of the population studied stated that they are satisfied with the surgery(AU)

Functional Shoulder Evaluation after Osteosynthesis of Greater Tuberosity Fracture: Is There any Influence of Glenohumeral Dislocation? / Avaliação funcional do ombro após osteossíntese da fratura da tuberosidade maior: Há influência da luxação glenoumeral?

Abstract Objective To evaluate the postoperative functional and radiographic outcomes of the shoulder of patients submitted to transosseous suturing of a greater tuberosity fracture (GTF) through an anterolateral route and the influence of the glenohumeral dislocation on these outcomes. Methods We conducted a retrospective study and functional assessment using the Constant-Murley score. The distance between the greater tuberosity and the joint surface of the proximal humerus (in true anteroposterior radiographs) after the union was calculated. We used the Fisher exact test for the categorical independent variables, and the Student t or Mann-Whitney test for the non-categorical variables. Results In total, 26 patients met the inclusion criteria, and 38% of the sample presented an association between glenohumeral dislocation and GTF. The mean Constant-Murley score was of 82.5 + 8.02 points. The presence of an associated dislocation did not alter the functional outcome. The mean distance between the greater tuberosity of the humerus and the joint surface of the humeral head after the union was of 9 + 4.3 mm below the articular line of the humeral head. The dislocation led to a lower level of reduction, but this did not influence the Constant-Murley score. Conclusion The cases of GTF submitted to surgical treatment with transosseous sutures had good functional outcomes. The presence of dislocation made the anatomical reduction of the greater tuberosity difficult. However, it did not influence the Constant-Murley score.

Resumo Objetivo Avaliar os resultados funcional e radiográfico pós-operatórios do ombro, em pacientes submetidos a sutura transóssea de fratura da tuberosidade maior (FTM) por acesso anterolateral, e a influência da luxação glenoumeral nesses resultados. Métodos Realizou-se estudo retrospectivo e avaliação funcional (pela escala de Constant-Murley). Calculou-se a distância entre a tuberosidade maior e a superfície articular do úmero proximal (por meio de radiografia em incidência anteroposterior verdadeira) após a consolidação. Usou-se o teste Exato de Fisher para as variáveis independentes categóricas, e os testes tde Student ou de Mann-Whitney para as não categóricas. Resultados Ao todo, 26 pacientes preencheram os critérios de inclusão. A associação de luxação glenoumeral com FTM foi observada em 38% da amostra. A média da pontuação na escala de Constant-Murley foi de 82,5 + 8,02. A presença de luxação associada não alterou o resultado funcional. A distância média da consolidação da tuberosidade maior do úmero em relação à superfície articular da cabeça umeral foi de 9 + 4,3 mm abaixo da linha articular da cabeça umeral. Pacientes com luxação associada evoluíram com redução menor, mas isso não influenciou na pontuação na escala de Constant-Murley. Conclusão As FTMs submetidas ao tratamento cirúrgico com sutura transóssea evoluíram com bom resultado funcional. A presença de luxação dificultou a redução anatômica da tuberosidade maior. Entretanto, isso não influenciou na pontuação na escala de Constant-Murley.

18-month results of double-fanged 5-0 polypropylene suture transscleral bag fixation in subluxated cataracts / Resultados de 18 meses da técnica double fanged com sutura de 5-0 polipropileno para fixação transescleral de saco capsular em cataratas subluxadas

ABSTRACT Purpose: To evaluate the stability and efficacy of the double-flanged 5-0 polypropylene suture to fixate subluxated cataracts at 18 months and the possible complications of this new technique Methods: This technique uses a 5-0 polypropylene monofilament to create two flanges with a thermocautery, for fixation of a capsular tension segment to the sclera to fix the subluxated capsular bag. This technique was implemented in 17 eyes requiring intraocular lens implantation in a setting of zonular dialysis due to trauma, Marfan syndrome, microspherophakia, idiopathic disease, and post-phacoemulsification status. Results: Follow-up of the patients occurred at 18 months. Best-corrected visual acuity improved significantly from 0.85 to 0.39 (logMAR), whereas the spherical and cylindrical refractive errors and intraocular pressure remained stable from preoperation. No suture photodegradation or pseudophacodonesis were detected. Conclusion: The double-flanged 5-0 polypropylene suture transscleral bag fixation technique has shown favorable long-term outcomes in terms of bag intraocular lens/complex fixation and stability. In eyes with zonular weakness or dialysis, this technique appears to be a safe and knotless option for cataract surgery.

RESUMO Objetivo: Avaliar a estabilidade e eficácia da técnica double-flanged com sutura de 5-0 polipropileno para fixação de cataratas subluxadas aos 18 meses e as possíveis complicações desta nova técnica. Métodos: Esta técnica utiliza um monofilamento de polipropileno 5-0 para criar dois flanges com um termocautério para fixar um Segmento de Tensão Capsular na esclera a fim de estabilizar o saco capsular subluxado. Esta técnica foi implementada em 17 olhos que necessitavam do implante de lente intraocular em casos de diálise zonular devido a trauma, síndrome de Marfan, microesferofacia, subluxação idiopática ou pós-facoemulsificação que provocou subulxação do saco capsular intraoperatória. Resultados: O seguimento dos pacientes foi de 18 meses. A acuidade visual corrigida melhorou significativamente de 0,85 para 0,39 (logMAR), enquanto os erros de refração esféricos e cilíndricos e a pressão intraocular permaneceram estáveis. Nenhuma fotodegradação de sutura ou pseudofacodonese foi encontrada. Conclusão: A técnica double-flanged para fixação transescleral de saco capsular com sutura de 5-0 polipropileno mostrou resultados de estabilidade de longo prazo para o complexo lente/saco capsular. Então, aparenta ser uma opção segura para cirurgia de catarata, sem necessidade pontos, em olhos com fraqueza zonular ou diálise.

Observation of the curative effect of scleral suture fixation technique with four-loop foldable intraocular lens

The objective of the study was to evaluate the curative effect of a modified technique of scleral suture fixation with a four-loop foldable intraocular lens (IOL) for eye with inadequate capsule support. This was a retrospective study of 22 eyes with inadequate capsule support of 20 patients who underwent the scleral suture fixation technique with 9-0 polypropylene suture and foldable four-loop IOL implant. Preoperative and follow-up data were collected for all patients. The mean follow-up was 5.08 ± 0.48 months (range: 3–12 months). The mean pre- and postoperative log of minimum angle of resolution (logMAR) uncorrected distance visual acuity was 1.11 ± 0.32 versus 0.09 ± 0.09 (P < 0.001). The mean pre- and postoperative logMAR best corrected visual acuity was 0.37 ± 0.19 versus 0.08 ± 0.07 (P < 0.001). The intraocular pressure (IOP) increased briefly (range: 21–30 mmHg) in eight eyes on the first day postoperatively and returned to normal within 1 week. No IOP drops were used postoperatively. The IOP was 12–19.3 (13.72 ± 1.28) in this follow-up, which had no significant difference compared to the preoperative IOP (t = 0.34, P = 0.74). At this follow-up, there was no hyperemia, local hyperplasia, obvious scar, suture knots, or segment ends observed under the conjunctiva, as well as no pupil deformation or vitreous hemorrhage. The mean postoperative IOL decentration degree was 0.22 ± 0.08 mm. At the 7-day follow-up postoperatively, one side of the IOL was dislocated to the vitreous cavity in one case, which was resolved by reimplantation of a new IOL in time with the same technique. Scleral suture fixation technique of a four-loop foldable IOL was a feasible operation method for an eye with inadequate capsular support.

Total Thoracoscopic Surgery for Late Mitral Paravalvular Leakage Repair in A Beating Heart

Abstract Paravalvular leakage (PVL) after mitral valve replacement is a troublesome complication that may lead to severe symptoms and reoperation. Previous case reports on total thoracoscopic cardiac surgery without aortic cross-clamping for repairing late PVL are rare. We describe a 64-year-old man who had undergone aortic and mitral valve replacement via median sternotomy eight years earlier, and who recently developed cardiac failure due to severe tricuspid regurgitation (TR) and PVL in the posterior mitral annulus. During total thoracoscopic surgery with using the beating heart technique, direct closure of the PVL was achieved via pledgeted mattress sutures, and tricuspid valvuloplasty was routinely performed to treat TR. This case indicated that total thoracoscopic surgery on a beating heart may be an excellent option for treating PVL concomitant with TR.

Clinical Value Evaluation of DR Corneal Suture Ring Localization and CT 3D Reconstruction Localization of Orbital Foreign Body / 中山大学学报(医学科学版)

ObjectiveTo investigate the clinical value of DR corneal suture ring localization and CT 3D reconstruction localization of orbital foreign bodies. MethodsRetrospective analysis was performed on patients （51 cases） suspected of ocular foreign bodies admitted to our hospital from January 2016 to December 2020 At the same time， DR corneal suture ring localization and CT three-dimensional reconstruction localization of orbital foreign bodies were performed， and the detection rate of foreign bodies by the two methods was calculated to analyze the location of ocular foreign bodies. ResultsThere were 38 cases of intraorbital foreign body identified by DR corneal suture ring localization method， and 46 cases of intraorbital foreign body identified by CT three-dimensional reconstruction localization method. The accuracy of CT three-dimensional reconstruction localization method was 90.20%， which was higher than that of DR corneal suture ring localization method 74.51% （P<0.05）. Intraocular foreign bodies in 23 cases could be distinguished by DR corneal suture ring localization， and 25 cases by CT 3D reconstruction localization. The maximum diameter of intraocular foreign bodies that could be distinguished by CT 3D reconstruction localization was （2.65±0.14） mm. The diameter of intraspherical foreign body was （2.94±0.36） mm （P<0.05） lower than that which could be distinguished by DR corneal suture ring localization method. The results of DR corneal suture ring localization of orbital foreign body showed no difference compared with the results of CT 3D reconstruction localization （P>0.05）. Forty cases of high density images inside and outside the eye could be clearly distinguished by CT 3D reconstruction. By using DR corneal suture ring localization method， 23 cases were confirmed to be intraocular high-density shadows， and 15 cases could not be confirmed to be intraocular high-density shadows （P < 0.05）. ConclusionsFor the location of intraorbital foreign bodies， CT three-dimensional reconstruction can be used as a conventional method for locating ocular foreign bodies with high resolution and accuracy， and can detect fine metal particles inside the eyeball. Meanwhile， for a few small foreign bodies in the iris root， ciliary body and lateral suspension ligament， it is necessary to locate orbital foreign bodies with DR corneal suture ring.

Risk Analysis and Study of Post-marketing Adverse Events for Absorbable Sutures / 中国医疗器械杂志

Objective To investigate, analyze, and evaluate the risk data associated with the clinical use of absorbable sutures by retrieving and summarizing information from the databases of the US FDA and CNKI, as well as the adverse event reports related to absorbable sutures from January 2019 to October 2022 within Zhejiang province. The adverse event reports are obtained from both incident locations and monitoring organizations affiliated with the registrant. The aim is to identify the main risk factors associated with the clinical use of absorbable sutures. The key risk factors are potential product quality defects, product design and material selection, clinical selection and application, and postoperative recovery care including patient's self-care. Risk control strategies are further proposed to reduce or minimize the risk of adverse events caused by this product.

Assessing Endoscopic Suture Performance of Gynecology and Obstetrics Residents Following Methodic Training / Avaliando a performance em sutura endoscópica de residentes de ginecologia e obstetrícia após treinamento metódico

Abstract Objective To evaluate the performance of residents in gynecology and obstetrics before and after practicing laparoscopic sutures, to establish when the training shows the best results, in addition to comparing whether being in different years of residency influences this progression. Methods A prospective cohort study involving 32 medical residents evaluated with a pretest to establish their previous knowledge in laparoscopic suture. This test consisted of knotting two wires, one made of polypropylene and the other of polyglactin, with a blocking sequence of five semi-knots. We set a 30-minute limit to complete the task. Then, the residents held four training meetings, focusing on suture, Gladiator rule, knot, and symmetries, in addition to executing blocking sequences. A second test to establish progress was performed. Results Regarding the time spent to make the stiches using polyglactin wire, a statistically significant time improvement (p< 0.01) was observed, with a 10.67-minute pretraining median (mean 12.24 minutes) and a 2.53-minute posttraining median (mean 3.25 minutes). Regarding the stitches with polypropylene wire, a statistically significant time improvement (p< 0.05) was also observed, with a 9.38-minute pretraining median (mean 15.43 minutes) and a 3.65-minute posttraining median (mean 4.54 minutes). A total of 64.2% of the residents had been able to make the knot with polypropylene previously. One hundred percent were able to complete the task in the posttest. Conclusion Model training using the Gladiator rule for laparoscopic suture improves the knotting time with statistically similar performance, regardless of the year of residency, after systematic training.

Resumo Objetivo Avaliar a performance de residentes em ginecologia e obstetrícia antes e depois de praticarem suturas laparoscópicas, com o intuito de estabelecer quando o treinamento mostra os melhores resultados, comparando se estar em diferentes da residência influencia essa progressão. Métodos Um estudo coorte prospectivo envolvendo 32 médicos residentes avaliados com um teste pré-treinamento para avaliar seus conhecimentos prévios em sutura laparoscópica. Esse teste consistia em atar nós em dois fios, um de polipropileno e o outro de poliglactina, com uma sequencia de bloqueio de cinco seminós. Definiu-se um limite de 30 minutos para se completar a tarefa. Depois, os residentes tiveram quatro reuniões de treinamento, focadas em sutura, técnica da Regra do Gladiador, nós e simetria, executando, ainda, uma sequência de pontos. Um segundo teste foi feito para avaliar o progresso. Resultados Com relação ao tempo para realizarem os pontos com fio de poliglactina, uma melhora de tempo estatisticamente significativa (p< 0.01) foi observada, com uma mediana de 10.67 minutos no pré-treinamento (média de 12.24 minutos) e uma mediana de 2.53 minutos no pós-treinamento (média de 3.25 minutos). Com relação ao fio de polipropileno, uma melhora de tempo estatisticamente significativa (p< 0.05) também foi observada, com uma mediana de pré-treinamento de 9.38 minutos (média de 15.43 minutos) e uma mediana de pós-treinamento de 3.65 minutos (média de 4.54 minutos). Um total de 64.2% dos residentes foram capazes de realizar os nós com polipropileno inicialmente. Cem por cento do residentes foram capazes de completar a tarefa no pós-teste. Conclusão O modelo de treino usando a técnica da Regra do Gladiador para sutura laparoscópica melhora o tempo de atar nós com uma performance estatisticamente similar, não havendo diferenças quanto ao ano da residência, após treinamento sistematizado.

Efficacy comparison of Jensen and augmented Hummelsheim procedure in the treatment of complete paralytic esotropia / 国际眼科杂志(Guoji Yanke Zazhi)

AIM: To compare the efficacy of Jensen and augmented Hummelsheim procedures in the treatment of complete paralytic esotropia.METHOD: A total of 35 patients(44 eyes)who were diagnosed with complete paralytic esotropia from October 2016 to October 2020 were retrospectively analyzed, of which 15 cases(21 eyes)underwent Jensen procedure combined with recession of antagonist muscle(Jensen procedure group), and 20 cases(23 eyes)received augmented Hummelsheim procedure combined with recession of antagonist muscle(Hummelsheim procedure group). The operation time, preoperative and postoperative esotropia deviation, degree of abduction paralysis, recession of medial rectus muscle and cure rate were observed.RESULTS: Clinical data and operation time of the patients in two groups were not statistically significant(P &#x0026;#x003E;0.05). During the last follow-up, the esotropia deviation of Jensen procedure group decreased from 102.33±41.70PD to 3.93±4.82PD(P&#x0026;#x003C;0.001), and it decreased from 94.75±33.03PD to 2.85±5.96PD in Hummelsheim procedure group(P&#x0026;#x003C;0.001), while the degree of abduction paralysis were significantly improved from -4.81±0.40 to -1.57±0.51 in the Jensen procedure group(P&#x0026;#x003C;0.001)and from -4.91±0.29 to -1.22±0.42 in Hummelsheim procedure group(P&#x0026;#x003C;0.001). Besides, there was no statistical difference in postoperative esotropia deviation between the two groups(P&#x0026;#x003E;0.05), but the degree of postoperative abduction paralysis in the Hummelsheim procedure group was significantly better than that of Jensen procedure group(P&#x0026;#x003C;0.05). The recession of medial rectus muscle of the two groups were 7.16±2.07 and 6.37±2.34 mm, respectively(P&#x0026;#x003E;0.05). During the last follow-up, in the Jensen procedure group, 2 patients were undercorrection(+10PD and +12PD respectively)and 13 cases(87%)were cured. In the Hummelsheim procedure group, 1 patient was undercorrection(+25PD)and 19 patients were cured(95%), and there was no statistical significance in cure rates of the two groups(P=0.565).CONCLUSIONS: Both Jensen procedure and augmented Hummelsheim procedure can effectively treat complete paralytic esotropia, and the latter is more effective in improving the abduction paralysis.

Key points to execute internal horizontal mattress suture in tissue augmentation / 口腔疾病防治

@#Ideal sutures can provide great fixation, wound closure and a stable environment for healing of the surgical site. Tension-free apposition sutures are important for tissue regeneration and could tackle insufficient amounts of soft and hard tissue, especially in missing tooth sites that require implantation. The internal horizontal mattress suture, similar to the conventional horizontal mattress suture, forms a rectangle that can be bisected by the incision with both intrusion and extrusion of the needle on each side. On the basis of the rectangle, the internal horizontal mattress suture emphasizes that the suture should be located below the incision, so the eversion of the wound margin is the highlight of this procedure. The internal horizontal mattress suture could stabilize the graft on the targeting tissue, realize the fixation of the collagen membrane, apically repositioned flap and soft tissue graft, reduce the tension on the incision, and further release the tension of the incision margin. Beyond the primary need for fixation and wound closure, internal horizontal mattress sutures can also achieve stress interruption that reduces the interference of the surrounding muscle and can better master wound tension with the assistance of interrupted sutures. Given the above advantages, horizontal internal mattress sutures have great potential in the application of implant-related regenerative surgery. In this review, according to our experience in clinical practice and the literature, we summarize the advantages of internal horizontal mattress sutures in tissue augmentation. In addition, the sites and sequence to insert the needle and the spatial relationship between the suture and incision are clarified with the rationale of the naming pattern, which is conducive to experience exchange and clinical practice.

Effectiveness of suture anchor fixation combined with Nice knot strapping via longitudinal patellar drilling in treatment of patellar inferior pole fracture / 中国修复重建外科杂志

OBJECTIVE@#To investigate effectiveness of suture anchor fixation combined with Nice knot strapping via longitudinal patellar drilling in the treatment of patellar inferior pole fractures.@*METHODS@#A clinical data of 37 patients with unilateral patellar inferior pole fracture who met the selection criteria between June 2017 and June 2021 was retrospectively analyzed. Among them, 17 cases were treated with the suture anchor fixation combined with Nice knot strapping via longitudinal patellar drilling (group A), and 20 cases were treated with the traditional Kirschner wire tension band technique (group B). There was no significant difference in terms of gender, age, body mass index, fracture side, combined medical disease, and preoperative hemoglobin between the two groups ( P>0.05). Operation time, intraoperative blood loss, postoperative complications, fracture healing time, knee range of motion, and knee function Bostman score (range of motion, pain, daily work, muscle atrophy, walking aids, knee effusion, soft leg, and stair climbing) and grading were recorded in both groups at last follow-up.@*RESULTS@#There was no significant difference in operation time and intraoperative blood loss between the two groups ( P>0.05). All incisions healed by first intention. All patients were followed up 1-2 years, with an average of 1.7 years. X-ray films reexamination showed that all fractures in group A healed, while 2 cases in group B did not heal. There was no significant difference in bone healing time between the two groups ( P>0.05). At last follow-up, the knee range of motion, the range of motion score of Bostman score, total score and effectiveness grading in group A were significantly better than those in group B ( P<0.05). There was no significant difference in the other items of Bostman scores between the two groups ( P>0.05). During follow-up, 2 cases of internal fixation failure and 1 case of internal fixator irritation occurred in group B, and no complication related to internal fixation occurred in group A. The occurrence of complications was significantly lower in group A than in group B ( P<0.05).@*CONCLUSION@#Compared with the traditional Kirschner wire tension band technique, the suture anchor combined with Nice knot strapping via longitudinal patellar drilling for the patellar inferior pole fractures has the advantages of simple operation, reliable fixation, early flexion and extension activity, and better functional recovery of knee joint.

Effectiveness analysis of "tail compression fixation+suture bridge" technology under shoulder arthroscopy for treating primary tear in medial enthesis of rotator cuff / 中国修复重建外科杂志

OBJECTIVE@#To investigate the feasibility and effectiveness of "tail compression fixation+suture bridge" technology under shoulder arthroscopy for treating primary tear in medial enthesis of rotator cuff.@*METHODS@#The clinical data of 11 patients with primary tear in medial enthesis of rotator cuff who met the selection criteria between October 2020 and October 2022 were retrospectively analyzed, including 3 males and 8 females, aged 39-79 years, with an average of 61.0 years. Rotator cuff injury was caused by traumatic fall in 8 cases, and the time from injury to admission was 1-4 months, with an average of 2.0 months; the remaining 3 cases had no obvious inducement. The active range of motion of the affected shoulder was limited, with an active forward flexion range of motion of (64.1±10.9)°, abduction of (78.1±6.4)°, internal rotation of (48.2±6.6)°, and external rotation of (41.8±10.5)°; 5 cases had shoulder stiffness. The preoperative visual analogue scale (VAS) score was 7.8±0.8 and the American Society of Shoulder and Elbow Surgeons (ASES) score was 23.9±6.4. The patients were treated with "tail compression fixation+suture bridge" technology under shoulder arthroscopy, and the pain and functional recovery were evaluated by VAS score, ASES score, and active range of motion of shoulder joint at last follow-up; MRI was performed after operation, and the integrity of rotator cuff was evaluated by Sugaya classification system.@*RESULTS@#All the 11 patients were followed up 2-22 months, with an average of 13.5 months. All incisions healed by first intention, and there was no complication such as infection, rotator cuff re-tear, and anchor falling off. At last follow-up, the VAS score was 0.8±0.7 and the ASES score was 93.5±4.2, which significantly improved when compared with those before operation ( P<0.05). All 11 patients had no significant swelling in the shoulders, and the active range of motion was (165.1±8.8)° in flexion, (75.3±8.4)° in abduction, (56.6±5.5)° in internal rotation, and (51.8±4.0)° in external rotation, which significantly improved when compared with those before operation ( P<0.05). Shoulder MRI showed adequate tendon thickness and good continuity in 9 cases, including 4 cases with partial high signal area; and 2 cases with inadequate tendon thickness but high continuity and partial high signal area. According to Sugaya classification system, there were 4 cases of type 1 (36.4%), 5 cases of type 2 (45.5%), and 2 cases of type 3 (18.1%).@*CONCLUSION@#For the patients with primary tear in medial enthesis of rotator cuff, the "tail compression fixation+suture bridge" technology under shoulder arthroscopy is simple and effective.