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suture threads

Marta Girvent Vilarmau, Felipe Ojeda Pérez, Maria José Canto Rivera, Marian Lorente Gascón
INTRODUCTION AND HYPOTHESIS: The aim of the study is to facilitate the suture on the sacral promontory for laparoscopic sacrocolpopexy. We hypothesised that a new method of sacral anchorage using a biosynthetic material, the polyether ether ketone (PEEK) harpoon, might be adequate because of its tensile strength, might reduce complications owing to its well-known biocompatibility, and might shorten the duration of surgery. METHODS: We verified the feasibility of insertion and quantified the stress resistance of the harpoons placed in the promontory in nine fresh cadavers, using four stress tests in each case...
October 17, 2016: International Urogynecology Journal
René Heppner, Nicola Weichert, Angelika Schierhorn, Udo Conrad, Markus Pietzsch
Spider dragline is used by many members of the Araneae family not only as a proteinogenic safety thread but also for web construction. Spider dragline has been shown to possess high tensile strength in combination with elastic behavior. This high tensile strength can be attributed to the presence of antiparallel β-sheets within the thread; these antiparallel β-sheets are why the protein is classified as a silk. Due to the properties of spider silk and its technical and medical uses, including its use as a suture material and as a scaffold for tissue regeneration, spider dragline is a focus of the biotechnology industry...
October 9, 2016: International Journal of Molecular Sciences
F Soria, J E de la Cruz, E Morcillo, J Rioja, F M Sánchez-Margallo
Double-J ureteral stents disposal is associated with the appearance of side effects in up to 90% of the patients. The main causes of these symptoms are related to stent's design and the materials they are manufactured from. Vesicoureteral reflux and bladder trigone irritation are the etiopathogenic causes of ureteral stents associated morbidity. Due to this, and in order to improve patients' quality of life, stents that avoid reflux have been developed. Among anti-reflux designs, the first was a double-J stent the bladder tip of which is provided with a polymeric membrane that prevents retrograde flow of urine through its internal drainage channel...
October 2016: Archivos Españoles de Urología
Sang-Yong Son, Long-Hai Cui, Ho-Jung Shin, Cheulsu Byun, Hoon Hur, Sang-Uk Han, Yong Kwan Cho
BACKGROUND: Compared to end-to-side anastomosis with a circular stapler, the overlap method is favored for intracorporeal esophagojejunostomy because it facilitates handling of the stapler, even in narrow spaces, and wider anastomosis. However, it associates with technical difficulties during anastomosis, including difficult traction on the esophageal stump that necessitates stay sutures. Here, we introduce a new modified overlap method that employs knotless barbed sutures (MOBS) and report the outcomes of our case series...
October 3, 2016: Surgical Endoscopy
Takaki Emura, Hiroshi Ohta, Noboru Oyachi, Takeyuki Suzuki
INTRODUCTION: Laparoscopic percutaneous extraperitoneal closure (LPEC) in boys is more complex than in girls, because the vas deferens and testicular vessels must be separated from the peritoneum. We therefore developed a needle-shaped surgical instrument that enables blunt separation. Here, we report the effectiveness of this new device. SURGICAL TECHNIQUE: The new device is a ligature carrier consisting of (1) an inner tube (19-G blunt needle) through which slides a rod with a loop wire at its tip that can catch and release suture materials and (2) an outer tube (17-G needle) with a cutting edge...
September 28, 2016: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
Tsutomu Mizuno
BACKGROUND: Double-eyelid blepharoplasty is a popular aesthetic surgery in Asians. However, the buried suture technique is associated with complications related to implantation of the suture thread. The present study was performed to identify optimal surgical suture removal techniques in Japanese patients with suture-related complications after buried suture double-eyelid blepharoplasty. METHODS: This retrospective study included 210 upper eyelids of 116 consecutive Japanese patients who had undergone buried suture double-eyelid blepharoplasty at other clinics...
August 2016: Plastic and Reconstructive Surgery. Global Open
Margherita Brancadoro, Selene Tognarelli, Gastone Ciuti, Arianna Menciassi
INTRODUCTION: The purpose of this work is to design and validate an innovative magnetic-based device for tissue retraction for minimally invasive surgery. MATERIAL AND METHODS: An intra-abdominal magnetic module is coupled with an extracorporeal system for establishing a stable attraction and consequently a reliable tissue retraction. Once the retractor has been inserted into the abdomen, tissue retraction is not constrained by a fixed access port, thus guaranteeing a more flexible, safer and less invasive operation...
September 12, 2016: Minimally Invasive Therapy & Allied Technologies: MITAT
Karl-Friedrich Kowalewski, Jonathan D Hendrie, Mona W Schmidt, Carly R Garrow, Thomas Bruckner, Tanja Proctor, Sai Paul, Davud Adigüzel, Sebastian Bodenstedt, Andreas Erben, Hannes Kenngott, Young Erben, Stefanie Speidel, Beat P Müller-Stich, Felix Nickel
INTRODUCTION: Training and assessment outside of the operating room is crucial for minimally invasive surgery due to steep learning curves. Thus, we have developed and validated the sensor- and expert model-based laparoscopic training system, the iSurgeon. MATERIALS: Participants of different experience levels (novice, intermediate, expert) performed four standardized laparoscopic knots. Instruments and surgeons' joint motions were tracked with an NDI Polaris camera and Microsoft Kinect v1...
September 7, 2016: Surgical Endoscopy
Raakhi Mistry, Michael John McCleave, John Codrington
BACKGROUND: Flexor tendon repair failures have primarily been attributed to either core suture rupture or core suture pull out. Recent studies have suggested that knot unravelling may also cause failure of a tendon repair. The aim of this study was to investigate the causes of core suture failure in two types of common flexor tendon repairs. METHODS: Twenty four cadaver tendons were divided into three groups of eight. Each group tested a specific flexor tendon repair...
October 2016: J Hand Surg Asian Pac Vol
Marco Bucci, Andrea Borgonovo, Albino Bianchi, Anna Zanellato, Dino Re
BACKGROUND: Suture is the surgical final act in most of oral surgery's procedures. Quality of advisable healing after the operation depends on its efficiency. Suture must not be cause of inflammation, both in direct way and indirect. The objective of this study is to compare the bacterial colonization on different suture's materials after a third molar's extraction. METHODS: 30 patients were randomly selected among people going under third molar extraction; they were divided into 3 groups and one suture type was used on each group...
September 1, 2016: Minerva Stomatologica
Eiji Itoi, Hideaki Nagamoto, Hirotaka Sano, Nobuyuki Yamamoto, Jun Kawakami
The deadman theory is composed of two angles: θ1 and θ2, and it is recommended that both be less than or equal to 45°. Based on this theory, surgeons insert the anchor at 45°. However, the biomechanical studies show controversial data. We reviewed the original article and the biomechanical studies in the literature. We further performed three additional studies: 1) a finite element analysis to calculate the pullout strength of thread-less anchors inserted at 45°, 90°, and 135° to the polyurethane foam; 2) the same pullout test using thread-less anchors and the polyurethane foam; and 3) the same pullout test using metal threaded suture anchors and the simulated cortical bone...
August 12, 2016: Bio-medical Materials and Engineering
Y Kodama, T Furumatsu, M Fujii, T Tanaka, S Miyazawa, T Ozaki
A medial meniscus posterior root tear (MMPRT) may increase the tibiofemoral contact pressure by decreasing the tibiofemoral contact area. Meniscal dysfunction induced by posterior root injury may lead to the development of osteoarthritic knees. Repair of a MMPRT can restore medial meniscus (MM) function and prevent knee osteoarthritis progression. Several surgical procedures have been reported for treating a MMPRT. However, these procedures are associated with several technical difficulties. Here, we describe a technique to stabilize a torn MM posterior root using the FasT-Fix(®) all-inside meniscal suture device and a new aiming device...
August 23, 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
Michael C Kindya, John Konicek, Angelo Rizzi, David E Komatsu, James M Paci
PURPOSE: To compare the biomechanical properties of a knotless suture anchor with suture tape quadriceps tendon repair technique with transosseous and suture anchor repair techniques. METHODS: Twenty matched pairs of cadaveric knees underwent a quadriceps tendon avulsion followed by repair via the use of transosseous tunnels with #2 high-strength sutures, 5.5-mm biocomposite fully threaded suture anchors with #2 high-strength sutures, or 4.75-mm biocomposite knotless suture anchors with suture tape...
August 8, 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
Yusuke Takahashi, Naoyuki Yokoyama, Natsumi Matsuzawa, Daisuke Sato, Tetsuya Otani
INTRODUCTION: Bile duct injury during laparoscopic cholecystectomy occurs in rare cases. We report two cases using barbed suture for repair in bile duct injury during laparoscopic cholecystectomies. PRESENTATION OF CASES: The first patient was a 73-year-old woman who underwent elective laparoscopic cholecystectomy for cholecystolithiasis. When the gallbladder was dissected from the bed, bile spillage was observed and an injured small bile duct was detected. The bile duct could not be managed using a titanium clip...
2016: International Journal of Surgery Case Reports
M Golling, S Felbinger, Z Zielska, K Maurer, P Baumann
The 1‑year incisional hernia rate of 9-30 % has been tolerated for decades. Even in the 1970s and 1980s there was evidence that supported reducing suture tension. Recently, the traditional 4:1 relationship between suture and wound length, which has been passed on for years, has been questioned. After first experimental and clinical data suggested an advantage by reducing the width and interval of stitches by 50 %, the prospective randomized STITCH study has now provided evidence by significantly lowering the 1‑year hernia rate from 21 % to 13 %...
September 2016: Der Chirurg; Zeitschrift Für Alle Gebiete der Operativen Medizen
Levent Horoz, Onur Hapa, F Alan Barber, Buğra Hüsemoğlu, Mustafa Özkan, Hasan Havitçioğlu
PURPOSE: To evaluate the load to failure strength of anchor techniques suitable for osteoporotic bone. METHODS: Using an osteoporotic ovine model in 72 humeri, 6 fixation techniques were tested. Group 1: two interlocking 5-mm anchors with fewer, wider threads; group 2: one 5-mm anchor; group 3: one 5-mm anchor reinforced laterally by a 6.5-mm cancellous screw; group 4: one 5-mm anchor in an area reinforced with a cancellous plug; group 5: two interlocking 5-mm anchors with smaller threads; group 6: one 5-mm smaller threaded anchor...
July 28, 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
Kana Yoshioka, Akira Miyauchi, Mitsuhiro Fukushima, Kaoru Kobayashi, Minoru Kihara, Akihiro Miya
BACKGROUND: We reported phonatory recovery in the majority of 88 patients after recurrent laryngeal nerve (RLN) reconstruction. Here we analyzed factors that might influence the recovery, in a larger patient series. METHODS: At Kuma Hospital, 449 patients (354 females and 95 males) underwent RLN reconstruction with direct anastomosis, ansa cervicalis-to-RLN anastomosis, free nerve grafting, or vagus-to-RLN anastomosis; 47.4 % had vocal cord paralysis (VCP) preoperatively...
July 18, 2016: World Journal of Surgery
Manoj Saha
Laparoscopic repair has emerged recently as an alternative technique for hernia repair in children. Various methods of repair have been described. Basic principle is to close the internal inguinal ring either by intracorporeal or by extracorporeal suturing. The objective of this study is to describe and evaluate the outcome of a simple technique of internal ring closure by a spinal needle. A total of 43 hernias in 41 patients were repaired. A prolene thread was passed percutaneously around the internal inguinal ring by threading it though a spinal needle under laparoscopic control...
April 2016: Indian Journal of Surgery
Wen-Xian Zhang, Bo-Ying Liu, Yan-Mei Xiao, Xiao-Wei Dong, Fang Dai, Lan Wei
Methods To investigate the safety and clinical significance of the method described in this study, we focused on 16 peritoneal dialysis patients with peritoneal dialysis (PD) catheter malposition and blockage in whom nonsurgical reposition was ineffective, who received a local incision about 5 cm below hypogastrium PD catheter insertions under local anesthesia. Tissues were separated layer by layer, 1-cm incisions were performed on the peritoneum vertically and conventionally, and then the PD catheters were pulled...
2016: Internal Medicine
Kiyoshi Ito, Tatsuro Aoyama, Takuya Nakamura, Yoshiki Hanaoka, Tetsuyoshi Horiuchi, Kazuhiro Hongo
The authors report on a new method for removing dumbbell-shaped spinal tumors that avoids the risk of postoperative cerebrospinal fluid (CSF) leakage. Adequate visualization of the intra- and extradural components of the tumor is achieved with the use of separate dural incisions. First, the dura mater is opened along the dural theca to provide adequate visualization of the intradural portion of the mass; then, a second incision is made along the nerve root to remove the extradural component. Meticulous suturing is essential in intradural lesion cases; however, the dura mater is usually thin and fragile in such cases...
June 10, 2016: Journal of Neurosurgery. Spine
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