Rim graft

PURPOSE: To describe the advantages of Ngenuity 3D digital filters for enhancing visualization during cataract and corneal transplant surgery. METHODS: All surgeries were performed by the same experienced surgeon (L.M.) using the Ngenuity 3D heads-up visualization system connected to a microscope. Images were simultaneously captured with and without the filter in each of the following phases: endothelial evaluation, capsulorhexis, capsule rupture, vitreous leak, cortex removal, visco removal, corneal suture, descemetorhexis, DMEK graft preparation and insertion...

Although the lateral window approach allows for greater graft material delivery and bone formation, it is more challenging and invasive, prompting keen interest among dentists to master this method. YouTube is increasingly used for medical training; however, concerns regarding the quality of instructional videos exist. This study proposes new criteria for evaluating YouTube videos on maxillary sinus elevation with the aim of establishing standards for assessing instructional content in the field. We sourced 100 maxillary sinus elevation videos from YouTube and, following exclusion criteria, analyzed 65 remaining videos...

OBJECTIVE: The aim of this study is to demonstrate use of Lateral Alar Caudal Graft to increase nasal tip definition in primary or revision rhinoplasty cases. METHOD: Lateral Alar Caudal Graft was used in 24 patients who underwent open technique septorhinoplasty between 2019 and 2023 years. Fourteen of the patients were female and 10 were male. This technique was applied in revision or primary cases where the caudal part of the lateral alar crura of the lower lateral cartilage was lower in the vertical plane than the cephalic part...

Nanoparticle organic hybrid materials (NOHMs) have been proposed as excellent electrolytes for combined CO2 capture and electrochemical conversion due to their conductive nature and chemical tunability. However, CO2 capture behavior and transport properties of these electrolytes after CO2 capture have not yet been studied. Here, we use a variety of nuclear magnetic resonance (NMR) techniques to explore the carbon speciation and transport properties of branched polyethylenimine (PEI) and PEI-grafted silica nanoparticles (denoted as NOHM-I-PEI) after CO2 capture...

BACKGROUND: The use of intraoperative diuretics, such as furosemide or mannitol, during kidney transplantation has been suggested to reduce the rate of delayed graft function (DGF). The evidence base for this is sparse, however, and there is substantial variation in practice. We sought to evaluate whether the use of intraoperative diuretics during kidney transplantation translated into a reduction in DGF. METHODS: We conducted a cohort study evaluating the use of furosemide or mannitol given intraoperatively before kidney reperfusion compared with control (no diuretic)...

Subciliary incision is a common approach for facial fracture surgery; however, it has a higher incidence of lower lid ectropion, which can be particularly challenging for beginning surgeons to manage. This study reports the usage of lateral tarsoplasty combined with a full-thickness skin graft (FTSG) to correct severe ectropion following the subciliary approach for infra-orbital rim fractures. We retrospectively reviewed all facial fracture cases involving infra-orbital rim fractures through a subciliary approach treated in our department between March 2021 and May 2023...

The articulated alar rim graft (AARG) proposed by Davis is a simple and effective method for avoiding and correcting most alar rim deformities in rhinoplasty. In addition to its benefit for the nasal ala, the position suggested herein allows for a precise definition of the facet polygon and infratip lobule. A retrospective series of 317 patients surgically treated with the modified AARG positioning were evaluated. The height of the septal extension graft was always a few millimeters above the new dome, without demanding excessive lateral crural tensioning (LCT), and the AARG itself was fixed more on the facet polygon and infratip than in the standard procedure...

A man in his 40s presented with an incidental finding of an osteolytic bone lesion. He sustained an ankle injury while inline skating, fracturing his lateral malleolus. Besides the fracture, radiographic imaging on the day of the injury incidentally revealed a well-defined solitary osteolytic lesion with a sclerotic rim within the right calcaneus. MRI showed an intraosseous, fat-containing lesion with focal contrast enhancement, assessed as an intraosseous lipoma with central necrosis. In the pathological analysis of a sample of the lesion an intraosseous myo lipoma of the calcaneus was found-an unexpected and extraordinary finding...

INTRODUCTION: Tacrolimus, exhibits interindividual pharmacokinetic variability and a narrow therapeutic index. The influence of the CYP3A5 6986A>G single nucleotide polymorphism (SNP) on this variability remains a topic of debate. AIM: To assess the impact of the aforementioned SNP on tacrolimus area under curve (AUC0-12h), adverse drug reactions (ADRs), and kidney graft outcomes. METHODS: Blood samples were collected from Tunisian kidney transplants over a five-year period during either the early (<3 months) or late (>3 months) post-transplant phases...

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BACKGROUND: Reconstructing full-thickness defects involving 50% to 75% of the horizontal length of the lower eyelid after medial and central full-thickness block resection can be challenging. As a disadvanatge, 1-stage reconstructions may require a free graft reconstruction of the posterior lamella. In addition, 2-stage reconstructions are associated with several complications, including erythema, and the eye must be temporarily closed after surgery. METHODS: The present study describes a single-surgeon retrospective case series...

There is growing evidence that neonatal porcine islet-like cell clusters (NPCCs) isolated from piglets can be used to treat type 1 diabetes in humans. However, graft rejection is a common complication in humans owing to the prevalence of xenoantigens in porcine. Therefore, researchers have investigated various islet encapsulation techniques that could protect against these antigens. To this end, this study presents a robust nano-encapsulation method based on bifunctional polymersomes (PSomes), in which N-hydroxysuccinimide (NHS) and maleimide (Mal) groups conjugated to the PSomes terminal interact with the amine and thiol groups on the surface of NPCCs to induce dual targeting via two covalent bonds...

BACKGROUND: In adults, the volume of costal cartilage is enough for reconstruction, but floating cartilage is hard, brittle, and easily broken due to calcification, in addition to being short, making it unsuitable for helical rim reconstruction in such age groups. AIM OF STUDY: This study describes a novel technique in which adult patients underwent 2-stage helical rim reconstruction using the syncytium of sixth and seventh costal cartilage. MATERIAL AND METHODS: A single-arm clinical trial involves 35 adults with total and subtotal helical rim defects, either congenital, post-traumatic, postburn, or postvascular malformation excision...

OBJECTIVE: To evaluate the Descemet membrane endothelial keratoplasty (DMEK) preparation performance of trainee surgeons in an ex vivo human donor cornea DMEK wet lab simulation setting. METHODS: Human donor corneoscleral rims unsuitable for transplantation were obtained from Moorfields Lions Eye Bank. At the wet lab, graft stripping was performed by scoring the peripheral endothelium. The trypan blue positive cells (TBPC) and cell density (cells/mm2 -reticule count) were counted manually before and after stripping...

BACKGROUND: In the Latarjet procedure, the ideal placement of the coracoid graft in the medial-lateral position is flush with the anterior glenoid rim. However, the ideal position of the graft in the superior-inferior position (sagittal plane) for restoring glenohumeral joint stability is still controversial. PURPOSE: To compare coracoid graft clockface positions between the traditional 3 to 5 o'clock and a more inferior (for the right shoulder) 4 to 6 o'clock with regard to glenohumeral joint stability in the Latarjet procedure...

Hemifacial Microsomia (HFM) is the second most common congenital craniofacial malformation syndrome, and the complexity of HFM makes its treatment challenging. The present study aimed to introduce a new approach of utilization of virtual surgical planning (VSP) and 3D-printed surgical adjuncts for maxillofacial reconstruction. Five HFM patients were included in this study. All participants were provided with a full VSP, including the design of osteotomy lines, the design and fabrication of 3D-printed cutting guides, fixation plates, and titanium mesh for implantation...

Iliac crest bone grafting is conducted in cases of anteroinferior shoulder instability with substantial bone loss of the glenoid rim to reconstruct the glenoid concavity and its stabilizing function. The technique is more than 100 years old, and it evolved to include graft fixation with metal screws. The disadvantages of metal screw fixation include risk of screw migration, loosening, and breakage, as well as irritation and injury to the surrounding osseous and soft tissue structures (e.g., humeral cartilage and subscapularis muscle)...

Osteochondral fractures of the lateral femoral condyle caused by lateral patella dislocation have been rarely reported. The AO/OTA Classification is not suitable for this uncommon injury. Comminution of the anterior cartilage surface of the lateral condyle with bone impaction is challenging to reduce and repair accurately, leading to uncertainty in joint function recovery. The treatment for this rare fracture is not commonly reported. We, herein, report a unique case where the lateral condyle osteochondral fracture occurred alongside patellar dislocation and instability of the patellofemoral joint...

OBJECTIVE: Shoulder dislocation represents a prevalent category within joint dislocation, accounting for about 40% of all joint dislocations, and anterior dislocation stands out as the prevailing type. It has been reported that in 1.6% of patients, the Latarjet procedure performed under arthroscopy involves transferring the coracoid process to the anterior-inferior aspect of the glenoid and fixing it with two bicortical screws. The tip of the screws may impinge the suprascapular nerve located behind the scapula, resulting in shoulder pain and weakness...

A variety of methods are employed to synthesize amorphous silica-alumina (ASA) to resolve the role of Al speciation and surface area in the catalytic performance in the Diels-Alder cycloaddition reaction of 2,5-dimethylfuran and ethylene to p -xylene. ASA was prepared by homogeneous deposition-precipitation (HDP) of Al3+ on ordered mesoporous silica, i.e. , SBA-15 and OMS prepared under hydrothermal synthesis conditions using an imidazole-based template, and one-step flame spray pyrolysis (FSP). IR spectroscopy and 27 Al MAS NMR showed that the resulting ASA represented a set of materials with distinct textural and acidic properties...