Abstract
Aseptic loosening is the major problem in hip joint replacement. Improved cementing techniques have been shown to improve the long-term survival of implants significantly. To assess the use of modern cementing techniques in British surgeons, a detailed questionnaire was sent to all Fellows of The British Orthopaedic Association (BOA) regarding cement preparation, bone preparation, cementing technique and prostheses used in total hip arthroplasty. Excluding retired fellows, surgeons who use no cement, and those who had filled in forms inadequately, 668 responded, who between them performed 43,680 hip arthroplasties per year. In this survey, 21 different types of hip prostheses were implanted by the surgeons; 48% of hips implanted were Charnley type. Of the surgeons, 46% used Palacos with gentamicin as their cement for both the femur and acetabulum. For the femur, 44% of surgeons remove all cancellous bone, 40% use pulse lavage, 59% use a brush to clear debris, 94% dry the femur, 97% plug the femur, 76% use a cement gun and 70% pressurise the cement. For the acetabulum, 88% of surgeons retain the subchondral bone, 40% use pulse lavage, 100% dry the acetabulum, 22% use hypotensive anaesthesia and 58% pressurise the cement. Overall only 25% of surgeons (26% of hips implanted) use 'modern' cementing techniques. This has implications for the number of arthroplasties that may require early revision.
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Selected References
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