The Lisfranc fracture-dislocation of the foot is uncommon and diagnosis is often missed. The Lisfranc joint involves the articulation between medial cuneiform and base of the second metatarsal and is considered a keystone to structural integrity to the midfoot. The articulation has a stabilization effect on longitudinal and transverse arches of the foot. A neglected or untreated injury to the Lisfranc joint can lead to secondary arthritis and significant morbidity and disability. We present a case of a neglected Lisfranc fracture-dislocation in a 28-year-old female patient who presented 3 months after injury. A staged treatment of distraction with an Ilizarov ring fixator followed in the second stage by the removal of ring fixator and internal fixation with K wires was performed. There was complete relief of pain and a good functional outcome at 3 months after treatment.
The synthesis and design of low-cost visible-light-active catalysts for the photodegradation of organic dyes have been regarded as an efficient way to use solar energy in addressing environmental issues. We report the fabrication of MoS2/CdS nanoparticles functionalized with Bi2S3 nanoflakes. The ternary composites of “MoS2/CdS/Bi2S3” were synthesized in situ by a hydrothermal method at different temperatures. The changes in structural, optical, and morphological properties of the synthesized CdS/MoS2/Bi2S3 were explored. The effects of Bi2S3 on CdS/MoS2 were thoroughly studied by performing an X-ray diffractometer (XRD), a scanning electron microscope (SEM), an ultra-violet–visible spectrometer (Uv–vis), and Fourier transform infrared spectroscopic (FT-IR) studies of the nanoparticles. XRD confirms the cubical crystal structure of the nanoparticles. SEM studies possess the modulation in the surface morphology with the tenability in volume ratios of “MoS2/CdS/Bi2S3” composites. It was observed that the bandgaps calculated using absorption measurements could be manipulated from 2.40 eV to 0.97 eV with varying Bi2S3 in the MoS2/CdS nanostructures. FT-IR confirmed the synthesis of “MoS2/CdS/Bi2S3” nanoparticles. On allowing the visible light to fall for 120 min, it was observed that “MoS2/CdS/Bi2S3” degrades the methylene blue up to 90%. The calculated results of “MoS2/CdS/Bi2S3” suggest that the synthesized material could be a strong candidate for photodegradation applications. This research work explains the synthesis of MoS2/CdS/Bi2S3-based nanocomposites for the degradation of dye using a photocatalytic process. The final results show that this catalyst effectively degrades the dye.
Objective: Temporomandibular joint (TMJ) ankylosis is a disorder where the temporomandibular joint, which joins the lower jaw to the skull, fuses or becomes "ankylosed." This can result in pain, difficulty opening the mouth, and other symptoms as a result of an injury, infection, or other factors. TMJ ankylosis can be treated with surgery, medication, and physical therapy. Arthrocentesis, arthroscopy, and open-joint surgery are surgical options. This retrospective study sought to examine the temporomandibular joint (TMJ) ankylosis pattern and its underlying causes in patients who had received treatment at Multan's Nisthar Institute of Dentistry. Methods: From 2018 to 2022, Nishtar Institute of Dentistry, Multan treated patients with temporomandibular joint ankylosis for 4 years. All patients whose records were sufficiently complete were analyzed in this research. Demographic data, the cause and pattern of ankylosis, the interval between the injury and therapy, simultaneous facial lacerations, remnant dislocation, a previous pedicle method, mouth opening prior to and following ankylosis treatment, health issues, the follow-up period, and physical therapy prior to and following ankylosis treatment are all included in the information. Results: Out of 32 patients with 45 afflicted joints and a mean ± standard deviation age of 29.90 ± 17.08 years, 25 (78%) occurrences of temporomandibular joint ankylosis were attributed to trauma (mainly between 20 and 29 years old). Bilateral participation outweighed unilateral involvement 13 to 9 and males outnumbered women 23 to 9. Restricted mouth opening was the patient's primary complaint the majority of the time (n=24, or 75%). The temporomandibular joint was completely ankylosed in 24 individuals. Prior to surgery, the mean maximum mouth openness was 0.95 ± 0.45 cm; however, it dramatically elevated to 4.50 ± 0.50 cm (p-value 0.001) following surgery. Conclusions: This research found that the most frequent complication of temporomandibular joint ankylosis among the participants it looked at was trauma. The patient's limited mouth opening was their most frequent primary complaint. Additionally, this study's findings revealed that men are more likely than women to develop TMJ ankylosis and that these patients' TMJ functions can be significantly improved through the surgery. Keywords: temporomandibular, TMJ, temporomandibular joint
Introduction: Generalized gingival enlargement is characterized by massive and exuberant gingival overgrowth that poses social, aesthetic, phonetic and functional problems for the patient. Therefore, it requires meticulous management. Objective: To describe the surgical management of generalized gingival enlargement by electrosurgical excision of patients presenting to a tertiary care centre.
Background: Safe values for quantitative perfusion parameters of indocyanine green (ICG) angiography have not been fully defined, and interpretation remains at the surgeon’s discretion. This prospective observational study aimed to establish the safe values for the quantitative perfusion parameters by comparing tissue oxygenation levels from HSI images in laparoscopic colorectal surgery. Methods: ICG angiography was performed using a laparoscopic near-infrared (NIR) camera system with ICG diluted in 10 mL of distilled water. For quantitative perfusion parameters, the changes in fluorescence intensity with perfusion times were analyzed to plot a time–fluorescence intensity graph. To assess real-time tissue oxygen saturation (StO2) in the colon, the TIVITA® Tissue System was utilized for hyperspectral imaging (HSI) acquisition. The StO2 levels were compared with the quantitative perfusion parameters derived from ICG angiography at corresponding points to define the safe range of ICG parameters reflecting good tissue oxygenation. Results: In the regression analysis, T1/2MAX, TMAX, slope, and NIR perfusion index were correlated with tissue oxygen saturation. Using this regression model, the cutoff values of quantitative perfusion parameters were calculated as T1/2MAX ≤ 10 s, TMAX ≤ 30 s, slope ≥ 5, and NIR perfusion index ≥50, which best reflected colon StO2 higher than 60%. Diagnostic values were analyzed to predict colon StO2 of 60% or more, and the ICG perfusion parameters T1/2MAX, TMAX, and perfusion TR showed high sensitivity values of 97% or more, indicating their ability to correctly identify cases with acceptable StO2. Conclusion: The safe values for quantitative perfusion parameters derived from ICG angiography were T1/2MAX ≤ 10 s and TMAX ≤ 30 s, which were associated with colon tissue oxygenation levels higher than 60% in the laparoscopic colorectal surgery.
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