Assessment of time to completion, number of errors, and knot-holding capacity of square knots and Aberdeen knots tied by veterinary students and student perceptions of knot security and knot-tying difficulty

2020 ◽  
Vol 256 (2) ◽  
pp. 230-238
Author(s):  
David A. Upchurch ◽  
Yuheng Wang ◽  
Sheng Chen ◽  
Sara Roccabianca ◽  
James K. Roush
2021 ◽  
pp. e20200040
Author(s):  
Denis Duret ◽  
Nuria Terron-Canedo ◽  
Margaret Hannigan ◽  
Avril Senior ◽  
Emma Ormandy

A portfolio with good reflective content can play a large role in learning and setting up the lifelong learning practice required by veterinary surgeons in practice or in research. The aim of this project was to investigate students’ experience with their reflective diaries within an electronic portfolio (e-portfolio). Focus groups were conducted with veterinary students at the University of Liverpool in years 1–4 to explore student perceptions of the e-portfolio, with an emphasis on reflection. Three themes emerged from the qualitative analysis: assessment, understanding the assignment (i.e., is it a useful and fair exercise?), and student well-being (i.e., stress, professional accountability, anxiety). Students had clear concerns about the assessment and did not see the relevance of the reflective diaries to their future career and learning. This has led the university’s School of Veterinary Science to restructure the reflections on professional skills in the portfolio.


2021 ◽  
Author(s):  
Eric Drabble ◽  
Sofia Spanopolou ◽  
Ellie Politaki ◽  
Ismini Paraskeva ◽  
Effrosyni Palla ◽  
...  

E H Drabble**, S Spanopoulou*, E. Sioka*, E Politaki*, I K Paraskeva*, E Palla*, L Stockley***, D Zacharoulis* (* University of Thessaly, Greece, **Clinical lead BSS course RCS England, Consultant Surgeon, University of Plymouth Hospitals NHS Trust***University of Plymouth, England) (Data statement: 'Technical appendix, statistical code, and dataset available from the Univrersity of Plymouth Data repositry Corresponding author: Eric Drabble, c/o 42 Skylark Rise, Plymouth PL6 7SN, Devon, UK [email protected] +44 7533 186772 Abstract Objective: Secure knots are essential. Previous publications have concentrated on security of different knot types, but could individual technique be important? Determine whether the technique of formation of each layer of a surgical knot is important to the security of the knot formed. Design study: Prospective analysis of technique on knot security Materials and methods: Senior and resident surgeons, and medical students, tied knots with three techniques, using four study materials, 2/0 polyglactin 910 (vicryl), 3/0 polydioxanone (PDS), 4/0 poliglecaprone 25 (monocryl) and 1 nylon (Ethilon); a standard flat reef knot (FRK), knots tied under tension (TK), and knots laid without appropriate hand crossing (NHCK). Each knot technique was performed reproducibly, and security determined by distraction with increasing force, till each material broke, or the knot separated completely. Results: 20% of flat reef knots (FRK) tied with all suture materials slipped; all knots tied with the other two techniques, with all materials, slipped, TK (100%) and NHCK (100%). The quantitative degree of slip, was significantly less for FRK (mean 6.3% 95%CI 2.2-10.4%) than for TK (mean 312% 95%CI 280.0-344.0%) and NHCK (mean 113.0% 95%CI 94.3-131.0%). The mean lengths of suture in loops held within knots, tied under tension (TK mean 17.0mm 95%CI 16.3-17.7mm), and tied without appropriate hand crossing (NHCK mean 16.3mm 95%CI 15.9-16.7mm) were significantly lower than for flat reef knots (FRK mean 25.1mm 95%CI 24.2-26.0mm). The first two types of knot may have tightened more than anticipated, in comparison to flat reef knots, with potential undue tissue tension. Conclusion: Meticulous technique of knot tying, is essential for secure knots, appropriate tissue tension, and the security of anastomoses and haemostasis effected


2019 ◽  
Vol 10 (2) ◽  
pp. 35-39
Author(s):  
Alexander CM. Chong ◽  
Daniel J. Prohaska ◽  
Brian P. Bye

Introduction. With arthroscopic techniques being used, the importanceof knot tying has been examined. Previous literaturehas examined the use of reversing half-hitches on alternatingposts (RHAPs) on knot security. Separately, there has been researchregarding different suture materials commonly used inthe operating room. The specific aim of this study was to validatethe effect of different stacked half-hitch configuration anddifferent braided suture materials on arthroscopic knot integrity. Methods. Three different suture materials tied withfive different RHAPs in arthroscopic knots were compared.A single load-to-failure test was performed andthe mean ultimate clinical failure load was obtained. Results. Significant knot holding strength improvement wasfound when one half-hitch was reversed as compared to baselineknot. When two of the half-hitches were reversed, therewas a greater improvement with all knots having a mean ultimateclinical failure load greater than 150 newtons (N). Comparisonof the suture materials demonstrated a higher meanultimate clinical failure load when Force Fiber® was used andat least one half-hitch was reversed. Knots tied with eitherForce Fiber® or Orthocord® showed 0% chance of knot slippagewhile knots tied with FiberWire® or braided fishing linehad about 10 and 30% knot slippage chances, respectively. Conclusion. A significant effect was observed in regards to bothstacked half-hitch configuration and suture materials used onknot loop and knot security. Caution should be used with tyingthree RHAPs in arthroscopic surgery, particularly witha standard knot pusher and arthroscopic cannulas. The findingsof this study indicated the importance of three RHAPsin performing arthroscopic knot tying and provided evidenceregarding discrepancies of maximum clinical failure loads observedbetween orthopaedic surgeons, thereby leading to bettersurgical outcomes in the future. KS J Med 2017;10(2):35-39.


2008 ◽  
Vol 11 (2) ◽  
pp. 76-82 ◽  
Author(s):  
Sarah M. Ginsberg

Abstract This qualitative study examined student perceptions regarding a hybrid classroom format in which part of their learning took place in a traditional classroom and part of their learning occurred in an online platform. Pre-course and post-course anonymous essays suggest that students may be open to learning in this context; however, they have specific concerns as well. Students raised issues regarding faculty communication patterns, learning styles, and the value of clear connections between online and traditional learning experiences. Student concerns and feedback need to be addressed through the course design and by the instructor in order for them to have a positive learning experience in a hybrid format course.


2011 ◽  
Vol 14 (1) ◽  
pp. 21-28
Author(s):  
Mary J. Emm ◽  
Christine P. Cecconi

Clinical supervision is recognized as a distinctive area of practice and expertise, yet professional preparation in this area remains inadequate. This paper presents functional information describing the development and implementation of an experimental course on administration, supervision, and private practice, based on graduate student perceptions and preferences for course content and types of learning activities. Current pedagogical trends for universal design in learning and fostering student engagement were emphasized, including problem-based and collaborative learning. Results suggest that students were highly pleased with course content, interactive and group activities, as well as with assessment procedures used.


2004 ◽  
Vol 171 (4S) ◽  
pp. 57-58
Author(s):  
Marcelo A. Orvieto ◽  
Gary W. Chien ◽  
R. Matthew Galocy ◽  
Mitchell H. Sokoloff ◽  
Gregory P. Zagaja ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document