The "Tri-Glide" Technique: A Case Report on a Novel Intraoperative Approach for Removal of Retained and Encrusted Ureteral Stents.

Background: Retained ureteral stents can result in significant morbidity and can be surgically challenging to urologists. A multimodal approach is often necessary for removal, potentially including retrograde and antegrade procedures performed over multiple anesthetic sessions. We describe the novel "Tri-Glide" technique for treating retained stents, particularly those with stent shaft encrustation prohibiting safe removal. Case Presentation. Two patients with nephrolithiasis and retained, encrusted ureteral stents were managed with the "Tri-Glide" technique. Patient #1 was a 58-year-old man with a severely calcified ureteral stent, retained for 14 years. After undergoing simultaneous cystolitholapaxy and percutaneous nephrolithotomy to treat proximal and distal encrustations, the stent shaft remained trapped in the ureter due to heavy calcifications. Three hydrophilic guidewires were passed alongside the stent, allowing it to easily slide out of the ureter intact. Patient #2 was a 74-year-old man who after only 3-months of stent dwell time developed severe stent shaft encrustation preventing removal. After multiple maneuvers failed, the "Tri-Glide" technique was used to create a smooth track for stent to slide out intact with gentle traction. Both patients did well postoperatively with no complications.

Conclusion: The "Tri-Glide" technique can aid in the management of complex encrusted stent extractions, especially when there is significant shaft encrustation.