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General Orthopaedics

THE HUMBLE TOOTHBRUSH: A DISRUPTIVE TECHNOLOGY SOLUTION FOR CEMENTED TKA

Current Concepts in Joint Replacement (CCJR) – Winter 2014



Abstract

Lavage and preparation of the cancellous bony surface can facilitate adequate fixation of components in cemented total knee arthroplasty (TKA). Commonly used techniques for bone preparation such as pulse lavage, apart from adding to the cost, may cause local loss of loose cancellous bone and may even drive contaminants deeper into the tissue when used during TKA. We describe a simple, inexpensive and effective tool of using a sterilised toothbrush for preparing bone surface during cemented TKA. This must be followed by adequate pressurization of cement at the right time to achieve close interdigitation of cement with trabecular bone.