Background: Ergonomic assessment of the instrument to needle to tissue relationship on efficiency and accuracy of laparoscopic suturing.
Methods: Video records of nine laparoscopic surgeons were analyzed for five technical variables of laparoscopic suturing. Surgeons undertook closure of 60 mm enterotomy using continuous 3/0 seromuscular atraumatic sutures. Subjects attempted to suture 3 to 5 mm from enterotomy edge and at 3 to 5 mm intervals. Vertical/horizontal deviations from desired entry/exit point of suture, execution time, and failure to complete sutures were recorded.
Results: Visualization style used by some was significantly more accurate but slower than the nonvisualization style used by others. Needle insertion angle of 80 degrees to 100 degrees gripping the middle and proximal end of needle and holding the needle >90 degrees to instrument axis significantly improved task accuracy. Insertion angle <80 degrees produced three times the failure rate of 80 degrees to 100 degrees. Surgeon's performance was consistent with either suturing style.
Conclusions: Visualization style was slower but more accurate. Optimum conditions for good suturing include 80 degrees to 100 degrees needle insertion angle; holding angle >90 degrees, and gripping point at middle and proximal third of the shaft of the needle. Task accuracy was surgeon dependent.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/s0002-9610(98)00202-5 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Evaluation of Retentive Force and Long-Term Performance of 4 Mol% Yttria Partially Stabilized Zirconia (4Y-PSZ) Double Crowns.
Cureus
December 2024
Department of Prosthodontics, Graduate School of Dentistry, Showa University, Tokyo, JPN.
Purpose: This study aims to evaluate the effects of taper angle and the number of insertion-removal cycles on the retention force of 4 mol% yttria partially stabilized zirconia (4Y-PSZ) double crowns over time.
Materials And Methods: Primary and secondary crowns were fabricated using 4Y-PSZ with taper angles of 2°, 4°, and 6° (n=15). Retention force during crown removal was measured after applying 50-N and 100-N loads.
First-Principles Assessment of ZnTe and CdSe as Prospective Tunnel Barriers at the InAs/Al Interface.
ACS Appl Mater Interfaces
January 2025
Department of Materials Science and Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States.
Majorana zero modes are predicted to emerge in semiconductor/superconductor interfaces, such as InAs/Al. Majorana modes could be utilized for fault tolerant topological qubits. However, their realization is hindered by materials challenges.
View Article and Find Full Text PDFEnhancing the Accuracy of Pedicle Screw Placement Using 3D-Printed Screw-Guiding Techniques in the Lumbosacral Region for Small Breed Dogs: A Cadaveric Study.
Animals (Basel)
December 2024
Department of Veterinary Medicine, Kangwon National University, Chuncheon-si 24341, Gangwon-do, Republic of Korea.
A 3D-printed guide is an effective method for accurately placing pedicle screws in dog vertebrae. While a conventional drill guide allows precise pilot hole formation, it can lead to potential screw wobbling during insertion. In this study, we applied a technique that assists with both drilling and screw insertion, and we compared the accuracy of screw placement using this approach with that achieved by the conventional drill guide.
View Article and Find Full Text PDF[Screw Angle and Condylar Ratio as Possible Parameters to Monitor the Treatment of Idiopathic Axial lower Limb Deformities Using Eight-Figure Plates].
Acta Chir Orthop Traumatol Cech
January 2025
Klinika dětské chirurgie, ortopedie a traumatologie Fakultní nemocnice Brno.
Purpose Of The Study: Temporary hemiepiphyseodesis using figure-eight plates is currently one of the main surgical techniques to correct axial deformities of lower limbs in paediatric patients. Comprehensive analysis, correct indication and monitoring of treatment are the basic prerequisites for successful therapy. The aim of the study was to analyse parameters that could become an alternative to standard parameters used nowadays, namely the inserted screw angle (SA), and a new parameter - condylar ratio (CR).
View Article and Find Full Text PDFA novel technique of blindly positioning bronchial blockers for one-lung ventilation: a prospective, randomized, crossover study.
J Cardiothorac Surg
January 2025
Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea.
Background: Several methods for blindly positioning bronchial blockers (BBs) for one-lung ventilation (OLV) have been proposed. However, these methods do not reliably ensure accurate positioning and proper direction. Here, we developed a clinically applicable two-stage maneuver by modifying a previously reported one-stage maneuver for successful insertion of a BB at the appropriate depth and direction in patients requiring lung isolation where a flexible bronchoscope (FOB) is not applicable.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!