Un modèle animal simple pour l'apprentissage des techniques de microanastomoses vasculaires de congruences diefférentes

Leclère, Franck-Marie Patrick; Kolb, Frédéric; Lewbart, Gregory A; Casoli, Vincent; Vögelin, Esther (2014). Un modèle animal simple pour l'apprentissage des techniques de microanastomoses vasculaires de congruences diefférentes. Plastic surgery, 22(1), pp. 30-33. Canadian Society of Plastic Surgeons

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BACKGROUND Since the pioneering work of Jacobson and Suarez, microsurgery has steadily progressed and is now used in all surgical specialities, particularly in plastic surgery. Before performing clinical procedures it is necessary to learn the basic techniques in the laboratory. OBJECTIVE To assess an animal model, thereby circumventing the following issues: ethical rules, cost, anesthesia and training time. METHODS Between July 2012 and September 2012, 182 earthworms were used for 150 microsurgical trainings to simulate discrepancy microanastomoses. Training was undertaken over 10 weekly periods. Each training session included 15 simulations of microanastomoses performed using the Harashina technique (earthworm diameters >1.5 mm [n=5], between 1.0 mm and 1.5 mm [n=5], and <1.0 mm [n=5]). The technique is presented and documented. A linear model with main variable as the number of the week (as a numeric covariate) and the size of the animal (as a factor) was used to determine the trend in time of anastomosis over subsequent weeks as well as differences between the different size groups. RESULTS The linear model showed a significant trend (P<0.001) in time of anastomosis in the course of the training, as well as significant differences (P<0.001) between the groups of animal of different sizes. For diameter >1.5 mm, mean anastomosis time decreased from 19.6±1.9 min to 12.6±0.7 min between the first and last week of training. For training involving smaller diameters, the results showed a reduction in execution time of 36.1% (P<0.01) (diameter between 1.0 mm and 1.5 mm) and 40.6% (P<0.01) (diameter <1.0 mm) between the first and last weeks. The study demonstrates an improvement in the dexterity and speed of nodes' execution. CONCLUSION The earthworm appears to be a reliable experimental model for microsurgical training of discrepancy microanastomoses. Its numerous advantages, as discussed in the present report, show that this model of training will significantly grow and develop in the near future.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Department of Orthopaedic, Plastic and Hand Surgery (DOPH) > Clinic of Plastic and Hand Surgery
04 Faculty of Medicine > Pre-clinic Human Medicine > BioMedical Research (DBMR) > Forschungsbereich Mu50 > Forschungsgruppe Handchirurgie
04 Faculty of Medicine > Department of Orthopaedic, Plastic and Hand Surgery (DOPH) > Clinic of Plastic and Hand Surgery > Hand Surgery

UniBE Contributor:

Leclère, Franck-Marie Patrick and Vögelin, Esther

Subjects:

600 Technology > 610 Medicine & health

ISSN:

2292-5503

Publisher:

Canadian Society of Plastic Surgeons

Language:

French

Submitter:

Veronika Picha

Date Deposited:

27 Jul 2015 16:18

Last Modified:

31 Oct 2017 10:20

PubMed ID:

25789274

Uncontrolled Keywords:

Earthworms, Experimental model, Microanastomoses, Microsurgery

BORIS DOI:

10.7892/boris.70384

URI:

https://boris.unibe.ch/id/eprint/70384

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