Document Detail

Microvascular anastomoses performed in rats using a microsurgical telemanipulator.
MedLine Citation:
PMID:  11169878     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To determine the feasibility of performing microsurgical procedures with a remote telemanipulator using a rat femoral artery anastomosis model. MATERIALS AND METHODS: A remote telemanipulator system was developed that enabled precision movements to be performed at up to 30x magnification. Ten 1-mm femoral artery anastomoses were performed in rats using the telemanipulator, and results were compared to those from a control group in which the procedure was performed with conventional microsurgical techniques. Study endpoints included anastomosis completion time, short-term patency, and procedural complications. Statistical analysis was performed using Student's t-test. RESULTS: All anastomoses performed by remote telemanipulation and by conventional microsurgery were completed successfully. Anastomosis completion times were 100.0 +/- 18.6 minutes in the telemanipulator group and 38.8 +/- 5.0 minutes using conventional techniques (p < 0.001). Patency in both groups at 5 minutes and at one hour was 100%. No intraoperative complications were encountered. Postmortem ex vivo examination of the excised arterial segment revealed no technical defects in either group. CONCLUSIONS: Complex procedures requiring a high degree of precision and dexterity can be performed using an electromechanical interface specifically designed for micromanipulation. Performance limitations are similar to those previously reported for remote surgical teleoperation, and most likely reflect incompletely characterized restrictions on multi-sensory information.
R A Li; J Jensen; J C Bowersox
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Computer aided surgery : official journal of the International Society for Computer Aided Surgery     Volume:  5     ISSN:  1092-9088     ISO Abbreviation:  Comput. Aided Surg.     Publication Date:  2000  
Date Detail:
Created Date:  2001-02-22     Completed Date:  2001-04-26     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  9708375     Medline TA:  Comput Aided Surg     Country:  United States    
Other Details:
Languages:  eng     Pagination:  326-32     Citation Subset:  IM    
Copyright Information:
Copyright 2000 Wiley-Liss, Inc.
Department of Surgery, University of California San Francisco, San Francisco, California 94143-1674, USA.
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MeSH Terms
Anastomosis, Surgical / instrumentation*,  methods
Feasibility Studies
Femoral Artery / surgery
Microsurgery / instrumentation*,  methods
Rats, Sprague-Dawley
Robotics / instrumentation*
Vascular Patency
Vascular Surgical Procedures / instrumentation*,  methods
Grant Support

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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