Pulsed lavage improves fixation strength of cemented tibial components.
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Pulsed lavage improves fixation strength of cemented tibial components. / Schlegel, Ulf J; Siewe, Jan; Delank, Karl S; Eysel, Peer; Püschel, Klaus; Morlock, Michael M; Uhlenbrock, de; Gebert, Anne.
in: INT ORTHOP, Jahrgang 35, Nr. 8, 8, 2011, S. 1165-1169.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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TY - JOUR
T1 - Pulsed lavage improves fixation strength of cemented tibial components.
AU - Schlegel, Ulf J
AU - Siewe, Jan
AU - Delank, Karl S
AU - Eysel, Peer
AU - Püschel, Klaus
AU - Morlock, Michael M
AU - Uhlenbrock, de
AU - Gebert, Anne
PY - 2011
Y1 - 2011
N2 - Pulsatile lavage is purported to improve radiographic survival in cemented total knee arthroplasty (TKA). Similarly, a potential improvement of fixation strength of the tibial tray has been assumed based on the increased cement penetration. In this study, the influence of pulsed lavage on fixation strength of the tibial component and bone cement penetration was evaluated in six pairs of cadaveric specimens. Following surgical preparation, the tibial surface was irrigated using pulsatile lavage on one side of a pair, while on the other side syringe lavage was applied. All tibial components were implanted using the same cementing technique. Cement penetration and bone mineral density was assessed based on computed tomography data. Fixation strength of the tibial trays was determined by a pull-out test with a material testing machine. Median pull-out forces and cement penetration were significantly (p = 0.031) improved in the pulsed lavage group as compared to the syringe lavage group. Enhanced fixation strength is suggested as being a key to improved survival of the implant. Consequently, pulsatile lavage should be considered as a mandatory preparation step when cementing tibial components in TKA.
AB - Pulsatile lavage is purported to improve radiographic survival in cemented total knee arthroplasty (TKA). Similarly, a potential improvement of fixation strength of the tibial tray has been assumed based on the increased cement penetration. In this study, the influence of pulsed lavage on fixation strength of the tibial component and bone cement penetration was evaluated in six pairs of cadaveric specimens. Following surgical preparation, the tibial surface was irrigated using pulsatile lavage on one side of a pair, while on the other side syringe lavage was applied. All tibial components were implanted using the same cementing technique. Cement penetration and bone mineral density was assessed based on computed tomography data. Fixation strength of the tibial trays was determined by a pull-out test with a material testing machine. Median pull-out forces and cement penetration were significantly (p = 0.031) improved in the pulsed lavage group as compared to the syringe lavage group. Enhanced fixation strength is suggested as being a key to improved survival of the implant. Consequently, pulsatile lavage should be considered as a mandatory preparation step when cementing tibial components in TKA.
M3 - SCORING: Zeitschriftenaufsatz
VL - 35
SP - 1165
EP - 1169
JO - INT ORTHOP
JF - INT ORTHOP
SN - 0341-2695
IS - 8
M1 - 8
ER -
