TY - JOUR
T1 - Experimental approach to study arthroscopic irrigation
AU - Tuijthof, G.J.M.
AU - Herder, J.L.
AU - van Dijk, C.N.
N1 - Funding Information:
Role of the funding source : This research was co-funded by the Minimally Invasive Surgery and Interventional Techniques Program, Delft University of Technology, Delft, The Netherlands ( http://mms.tudelft.nl/misit/index.htm ), and by the Technology Foundation STW, applied science division of NOW and the technology program of the Ministry of Economic Affairs, The Netherlands. Both grants had no involvement in the study design, the collection, analysis and interpretation of data; in the writing of the manuscript; and in the decision to submit the manuscript for publication. The same holds for Arsis Medical bv.
PY - 2008/10
Y1 - 2008/10
N2 - The view during arthroscopic operations is kept clear by means of irrigation. The purpose was to determine dominant parameters on irrigation performance from which design considerations were formulated for optimization of joint irrigation. An experimental approach was chosen. The set up consisted of a human joint phantom with normal operative equipment for irrigation. Disturbances of the view were simulated with blue colored ink. With this, an objective and quantitative outcome measure was defined as the time from ink injection till complete clear view (irrigation time). The irrigation times for varying parameters were evaluated: pressure and flow, configuration of in- and outflow portals, location of bleeding, two- versus three-dimensionally shaped joint space, direction and location of inflow, and presence of an instrument. Apart from the level of pressure and flow (F(5,34) = 245, p < 0.05), the configuration of in- and outflow portals had a dominant significant influence on the irrigation time (F(2,23) = 69, p < 0.05) achieving a decrease of up to 64% and 77%, respectively. The experimental approach resulted in formulation of design criteria for new sheaths: cross-sectional area as large as possible, and stimulation of a turbulent inflow. The method can be used as a standard testing protocol for new arthroscopic devices and instruments.
AB - The view during arthroscopic operations is kept clear by means of irrigation. The purpose was to determine dominant parameters on irrigation performance from which design considerations were formulated for optimization of joint irrigation. An experimental approach was chosen. The set up consisted of a human joint phantom with normal operative equipment for irrigation. Disturbances of the view were simulated with blue colored ink. With this, an objective and quantitative outcome measure was defined as the time from ink injection till complete clear view (irrigation time). The irrigation times for varying parameters were evaluated: pressure and flow, configuration of in- and outflow portals, location of bleeding, two- versus three-dimensionally shaped joint space, direction and location of inflow, and presence of an instrument. Apart from the level of pressure and flow (F(5,34) = 245, p < 0.05), the configuration of in- and outflow portals had a dominant significant influence on the irrigation time (F(2,23) = 69, p < 0.05) achieving a decrease of up to 64% and 77%, respectively. The experimental approach resulted in formulation of design criteria for new sheaths: cross-sectional area as large as possible, and stimulation of a turbulent inflow. The method can be used as a standard testing protocol for new arthroscopic devices and instruments.
KW - Arthroscopy
KW - Comparative study
KW - Design
KW - Experiments
KW - Irrigation
KW - Sheath
UR - http://www.scopus.com/inward/record.url?scp=53049092623&partnerID=8YFLogxK
U2 - 10.1016/j.medengphy.2008.01.002
DO - 10.1016/j.medengphy.2008.01.002
M3 - Article
C2 - 18294897
AN - SCOPUS:53049092623
SN - 1350-4533
VL - 30
SP - 1071
EP - 1078
JO - Medical Engineering and Physics
JF - Medical Engineering and Physics
IS - 8
ER -
