PubMed · 11570455
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R E Booth. 2001. Minimizing operating time: does speed kill?. https://doi.org/10.3928/0147-7447-20010901-12
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The methodological detail about determining the femoral axis on lateral fluoroscopic images of the knee is lacking. This paper reports on the use of the posterior border of the lower femoral diaphysis to represent the axis. This method is accurate, simple, reliable and can be used by researchers studying knee joint kinematics using dynamic video fluoroscopy. It is also useful in the outpatient clinic to assess the flexion/extension position of femoral components after knee arthroplasty.
A retrospective radiologic study of Kinemax total knee arthroplasty templates is presented to establish their accuracy. The preoperative and postoperative radiographs of 49 Kinemax total knee arthroplasties were assessed using the Kinemax template. The size of the actual component used was compared with that predicted from the preoperative and postoperative radiographs. The preoperative radiograph template was accurate in 57% of cases, but the postoperative radiograph template was accurate in only 41%. Preoperative radiologic templating is of questionable benefit as part of preoperative management for patients undergoing Kinemax total knee arthroplasty.