In laser-controlled cartilage-ablation arthroplasties, the attention focuses more and more on the depth effects of the various lasers, especially as heat necroses of the cartilage and even in places of the bone were found in animal experiments. For the first time, two cases of holmium: YAG laser-induced aseptic bone necrosis of the femoral condyles after cartilage ablation are described.
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Purpose Of Review: This review focuses on recent advancements in laser technologies used in urology, particularly in enucleation, vaporization, lithotripsy, and focal laser ablation (FLA). The growing use of the thulium fiber laser (TFL) and the development of pulsed thulium lasers (p-Tm:YAG) highlight the relevance of this review, as these innovations aim to improve precision and outcomes in urological procedures.
Recent Findings: Recent studies have shown the advantages of TFL in achieving precise tissue ablation, reduced retropulsion offered by the Moses technology in holmium lasers, and the potential of pulsed thulium lasers for more precise control of the effects on tissues.
A comparison on safety and efficacy between 24 Fr versus 18 Fr pneumatic balloon dilators for percutaneous treatment of renal stones between 10 and 20 mm: results from a contemporary cohort.
World J Urol
January 2025
Department of Urology, Azienda Socio Sanitaria Territoriale Lariana, Como, Italy.
Purpose: To assess differences in safety and efficacy between 24 and 18 Fr pneumatic balloon dilators for percutaneous nephrolithotripsy (PCNL) of renal stones between 10 and 20 mm.
Methods: Patients were randomized to dilatation with a 24 Fr (Group A) versus 18 Fr (Group B) Ultraxx pneumatic dilator (Cook Medical). In all procedures percutaneous puncture was performed under ultrasound guidance.
Rise in intraluminal temperature during ureteroscopy: Is this a concern?
Investig Clin Urol
January 2025
Department of Urology, Seoul National University Bundang Hospital, Seongnam, Korea.
The global increase in urolithiasis prevalence has led to a shift towards minimally invasive procedures, such as retrograde intrarenal surgery, supported by advancements in laser technologies for lithotripsy. Pulsed lasers, particularly the holmium YAG and the newer thulium fiber laser, have significantly transformed the management of upper urinary tract stones. However, the use of high-power lasers in these procedures introduces risks of heat-related injury.
View Article and Find Full Text PDFVacuum suction catheter semi-rigid ureteroscopic laser lithotripsy for impacted upper ureteral stones: randomised controlled trial.
Int J Surg
December 2024
Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China.
Purpose: To evaluate the effectiveness and safety of an upgraded integrated vacuum suction catheter in semi-rigid ureteroscopic laser lithotripsy (VC-URSL) compared to traditional methods for treating impacted upper ureteral stones.
Patients And Methods: This prospective, randomized controlled trial was conducted from September 2022 to March 2024 at a single center, enrolling 95 patients aged 18 to 70 years with a single radiopaque impacted upper ureteral stone. Participants were randomized into two groups: the VC-URSL group used an integrated vacuum suction catheter featuring a stainless steel stabilizing tube and a narrowed distal end to prevent obstruction, while the T-URSL group underwent standard ureteroscopic lithotripsy without vacuum assistance.
Optimizing the Appropriate Mode of the Pulse-modulated Holmium Laser in a Pop-dusting Benchtop Model.
Urology
December 2024
Division of Urology, Department of Surgery, Ramathibodi Hospital, Faculty of Medicine, Mahidol University, Bangkok, Thailand.
Objective: To investigate the effectiveness of different holmium:yttrium-aluminum-garnet (Ho:YAG) laser modes for lithotripsy in the "dusting era" and identify the optimal laser mode for producing stone fragments measuring ≤0.5mm.
Methods: We used plaster of Paris-made artificial stones crushed into 2-3 mm pieces, weighing 1 g in total.
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