Authors: Birender Kapoor; Sandeep Datir; Benjamin Davis; Charles Wynn-Jones; Nicola Maffulli

Source: Acta Orthopaedica Scandinavica, Volume 75, Number 6, December 2004 , pp. 708-712(5)

Publisher: Informa Healthcare

Abstract:

Background Several cementing techniques are used for the proximal femur. Material and methods We evaluated 3 femoral cement pressurization techniques (standard, pressurizer in situ, and thumb pressurization) in 12 plastic femurs, with 4 sets of observations for each technique. Intramedullary pressure readings were obtained using proximal and distal pressure monitoring transducers. The peak pressure and the length of time for which the pressure was above a particular cutoff level (5 KPa and 100 KPa) were compared for the different techniques. Results We found significant differences between the 3 cementing techniques in the peak pressure and the length of time for which the pressure was above 100 KPa. The pressurizer in situ technique gave higher peak pressure (p < 0.001), both proximally (398) and distally (597). The standard technique produced a pressure of 100 KPa for a longer duration, both proximally and distally (mean 67 sec and 45 sec, p < 0.001) compared to the other two techniques (less than 5 and 17 sec for the thumb pressurization technique and the pressurizer in situ technique, respectively, both proximally and distally). Although the pressurizer in situ technique produced the highest peak pressure, the standard technique produced an optimum pressure of longer duration. Interpretation The standard technique appears to be adequate for achievement of optimum pressurization during femoral cementing without increased risk of embolization.

Document Type: Research article

DOI: http://dx.doi.org/10.1080/00016470410004076

Affiliations: 1: Department of Trauma and Orthopaedic Surgery, University Hospital of North Staffordshire NHS Trust, Keele University School of Medicine, Stoke-on-Trent, UK

Publication date: 2004-12-01

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