Abstract
Objective - To determine the effect of acetabular cup temperature and duration of cement pressurization on porosity of the acetabular cement mantel. Study design - In vitro study. Methods - Twenty-four polyurethane foam blocks prepared for acetabular prosthetic implantation were implanted with polyethylene acetabular cups using four combinations and variations of temperature and pressure: (1) high temperature/short-term pressurization; (2) high temperature/long-term pressurization; (3) low temperature/long-term pressurization; and (4) low temperature short-term pressurization. Five 1-mm-thick slices were taken from the center of each block using a tissue processing system. The slices were scanned into a personal computer using a photo slide scanner. Imaging software was used to determine cement surface area and size, number, and distribution of pores. The quality of the cement-implant interface was subjectively evaluated. Statistical analysis of relative cement porosity was performed by a Kruskal-Wallis analysis of variance comparing the four groups individually and combining the short-term pressurization groups versus the long-term pressurization groups. Results - There were no significant differences in cement porosity between the four test groups (P = .11). There were no significant differences in porosity between the combined groups (P = .48). Conclusions - There is no benefit in prewarming acetabular cups before implantation. There are no deleterious effects of short-term pressurization of the cement during implantation.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 167-173 |
| Number of pages | 7 |
| Journal | Veterinary Surgery |
| Volume | 31 |
| Issue number | 2 |
| DOIs | |
| State | Published - Mar 2002 |
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- veterinary(all)
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The effects of acetabular cup temperature and duration of cement pressurization on cement porosity in a canine total hip replacement model. / Shields, S. L.; Schulz, K. S.; Hagan, C. E.; Kass, Philip H.
In: Veterinary Surgery, Vol. 31, No. 2, 03.2002, p. 167-173.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - The effects of acetabular cup temperature and duration of cement pressurization on cement porosity in a canine total hip replacement model
AU - Shields, S. L.
AU - Schulz, K. S.
AU - Hagan, C. E.
AU - Kass, Philip H
PY - 2002/3
Y1 - 2002/3
N2 - Objective - To determine the effect of acetabular cup temperature and duration of cement pressurization on porosity of the acetabular cement mantel. Study design - In vitro study. Methods - Twenty-four polyurethane foam blocks prepared for acetabular prosthetic implantation were implanted with polyethylene acetabular cups using four combinations and variations of temperature and pressure: (1) high temperature/short-term pressurization; (2) high temperature/long-term pressurization; (3) low temperature/long-term pressurization; and (4) low temperature short-term pressurization. Five 1-mm-thick slices were taken from the center of each block using a tissue processing system. The slices were scanned into a personal computer using a photo slide scanner. Imaging software was used to determine cement surface area and size, number, and distribution of pores. The quality of the cement-implant interface was subjectively evaluated. Statistical analysis of relative cement porosity was performed by a Kruskal-Wallis analysis of variance comparing the four groups individually and combining the short-term pressurization groups versus the long-term pressurization groups. Results - There were no significant differences in cement porosity between the four test groups (P = .11). There were no significant differences in porosity between the combined groups (P = .48). Conclusions - There is no benefit in prewarming acetabular cups before implantation. There are no deleterious effects of short-term pressurization of the cement during implantation.
AB - Objective - To determine the effect of acetabular cup temperature and duration of cement pressurization on porosity of the acetabular cement mantel. Study design - In vitro study. Methods - Twenty-four polyurethane foam blocks prepared for acetabular prosthetic implantation were implanted with polyethylene acetabular cups using four combinations and variations of temperature and pressure: (1) high temperature/short-term pressurization; (2) high temperature/long-term pressurization; (3) low temperature/long-term pressurization; and (4) low temperature short-term pressurization. Five 1-mm-thick slices were taken from the center of each block using a tissue processing system. The slices were scanned into a personal computer using a photo slide scanner. Imaging software was used to determine cement surface area and size, number, and distribution of pores. The quality of the cement-implant interface was subjectively evaluated. Statistical analysis of relative cement porosity was performed by a Kruskal-Wallis analysis of variance comparing the four groups individually and combining the short-term pressurization groups versus the long-term pressurization groups. Results - There were no significant differences in cement porosity between the four test groups (P = .11). There were no significant differences in porosity between the combined groups (P = .48). Conclusions - There is no benefit in prewarming acetabular cups before implantation. There are no deleterious effects of short-term pressurization of the cement during implantation.
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U2 - 10.1053/jvet.2002.31044
DO - 10.1053/jvet.2002.31044
M3 - Article
C2 - 11884962
AN - SCOPUS:0036514338
VL - 31
SP - 167
EP - 173
JO - Veterinary Surgery
JF - Veterinary Surgery
SN - 0161-3499
IS - 2
ER -