Manual of Cementing Technique

Draenert, K.

doi:10.1007/978-3-642-60079-1

Cited by 34 publications

(16 citation statements)

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“…4a-d). This direct stem-to-bone contact increases bone deformation during loading, causing increased stress peaks in the cement resulting in earlier cement fatigue (Draenert et al, 1999). In contrast no cracks were seen in the unloaded control Mueller-straight stem.…”

Section: Article In Presscontrasting

confidence: 54%

“…In this context, a better and more uniform stiffening of the cancellous bone (Wirtz et al, 2001) with improved ''mechanical interlocking'' between cement and bone (Draenert et al, 1999) must be mentioned. In our in vitro study no gaps in the interface between cement and the SAWBONE s occurred in none of the tested stem designs, while a firm mechanical ''interlocking'' between cement and cancellous bone was observed.…”

Section: Discussionmentioning

confidence: 97%

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In vitro interface and cement mantle analysis of different femur stem designs

Gravius

Wirtz

Siebert³

et al. 2008

Journal of Biomechanics

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Section: Article In Presscontrasting

confidence: 54%

Section: Discussionmentioning

confidence: 97%

In vitro interface and cement mantle analysis of different femur stem designs

Gravius

Wirtz

Siebert³

et al. 2008

Journal of Biomechanics

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“…In contrast to the Palacos group, we found cement invasion of the venous system in more than half of the specimens in the Osteopal group. This phenomenon is also well recognized in clinical work as an adverse effect of pressurization with low viscosity cements (Ulrich 1995, Draenert et al 1999, Knight et al 1999.…”

Section: Discussionmentioning

confidence: 86%

“…In our study, prechilling of both Palacos and Osteopal to prolong their low viscosity phase was necessary to guarantee complete, pore-free lling of the delivery system and the femoral canals. Prechilling is a well-recognized method (Draenert et al 1999). The effect of monomer cooling at -20 °C on the physical properties of Palacos is not known, but it is unlikely that properties other than viscosity are affected.…”

Section: Discussionmentioning

confidence: 99%

Influence of cement viscosity on cement interdigitation and venous fat content under in vivo conditions

Breusch¹,

Heisel²,

Müller³

et al. 2002

Acta Orthopaedica Scandinavica

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“…The implantation was performed with the original instruments (Elite Plus: Johnson & Johnson DePuy, Leeds, UK; AC: Stryker Howmedica, Rutherford NJ, USA; Willert CF-30: AlloPro, Baar, Switzerland). For preparing the femoral canal no reamers were used [1,31]. The canal was broached to the largest-size broach that fit the canal.…”

Section: Surgical Techniquementioning

confidence: 99%

Modified cemented stem fixation in hip arthroplasty with computer based analysis – Experimental results

Barden

Wesskamp

Löer

et al. 2003

Materialwissenschaft Werkst

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27 cemented stems were implanted in fresh-frozen human cadaver femora with third generation antegrade cementing technique and with prechilled vacuum-mixed and pre-pressurized Palacos R bone cement. 3 groups with different implantation techniques were compared according to the achieved cement mantle thickness distribution. Group 1 (modified stem fixation): 7 canulated stems inserted over guidetubes that were fixed in distal synthetic plugs (3 Willert CF-30 and 4 flanged Charnley stems). The guidetubes served simultaneously for stem centralization and evacuation of the intramedullary cavity. Group 2: 12 stems with distal centralizers with fins (4 flanged Charnley, 8 anatomic cemented AC), and Group 3: 8 stems without centralizer (4 Willert CF-30 and 4 flanged Charnley). For analysis, each femur was cut into mean 25 cross-sections (range, 22 -31). Contact radiographs were taken and digitized with a sampling distance of 0.12mm (204.8 dpi). Using a custommade computer program (FemStat 1.001), the cement mantle thickness was determined at mean 650 implant surface points per cross section. Results: The percentage of critical cement mantle thickness was lower for the canulated stems with guidetube. Here 14.1 % of the measurements were smaller than 2mm. For the stems with distal centralizer and without centralizer this was 28.3 % and 28.2 % (p = 0.003 and p = 0.002, U-test). Cement mantles smaller than 1mm were also reduced for group 1 (2.8 % compared with 4.7 % and 7.5 %) but this was not significant (p = 0.384 and p = 0.094). The stems without centralizers had only slightly inferior cement mantles if compared to stems with distal centralizers with fins (for < 2mm p = 0.571, for < 1mm p = 0.305). Comparing different cementing techniques for one constant type of prosthesis (Charnley) the canulated stems with guide tubes provided a significantly better cement mantle thickness than the stems with distal centralizers (for < 2mm 10.3 % compared with 26.6 %, p = 0.029; for < 1mm 1.5 % compared with 3.4 %, p = 0.343). Distal centralizers failed, as the intramedullary cavity is elliptic in cross section and the gaps between the wings caused malposition. For all stems in group 3 improvement of the cement mantle thickness was predominantly achieved in the distal and middle third of the femur. Conclusion: The implantation technique with canulated stems inserted over a guidetube allows superior stem positioning leading to a more favourable cement mantle.Keywords: Hip arthroplasty, centralizer, cement, computer analysis 27 zementierte Hüftendoprothesen wurden in humane Autopsiefemora mit einer antegraden Zementiertechnik der dritten Generation implantiert. Vorgekühlter und vorkomprimierter Palacos-RKnochenzement wurde verwendet. Drei Gruppen mit verschiedenen Implantationstechniken wurden hinsichtlich der erreichten Zementmanteldicken-Verteilung untersucht. Der prozentuale Anteil der Messungen mit kritischem Zementmantel war bei den kanülierten Schäften (Gruppe 1) signifikant kleiner als bei den anderen Gruppen. Hier ergaben nur insg...

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Manual of Cementing Technique

Cited by 34 publications

References 0 publications

In vitro interface and cement mantle analysis of different femur stem designs

In vitro interface and cement mantle analysis of different femur stem designs

Influence of cement viscosity on cement interdigitation and venous fat content under in vivo conditions

Modified cemented stem fixation in hip arthroplasty with computer based analysis – Experimental results

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