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KMID : 0359620160280040312
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Journal of Korean Knee Society
2016 Volume.28 No. 4 p.312 ~ p.318
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Availability of Total Knee Arthroplasty Implants for Metal Hypersensitivity Patients
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Ajwani Sanil Harji
Charalambous Charalambos P.
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Abstract
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Purpose: To provide information on the type of “hypersensitivity-friendly” components available for primary total knee arthroplasty (TKA) in the current market.
Materials and Methods: Implant manufactures were identified using the 2013 National Joint Registries of the United Kingdom and Sweden and contacted to obtain information about the products they offer for patients with metal hypersensitivity.
Results: Information on 23 TKA systems was provided by 13 implant manufacturers. Of these, 15 systems had options suitable for metal hypersensitivity patients. Two types of “hypersensitivity-friendly” components were identified: 10 implants were cobalt chrome prostheses with a “hypersensitivity-friendly” outer coating and 5 implants were made entirely from non-cobalt chrome alloys.
Conclusions: The results of this study suggest that several hypersensitivity TKA options exist, some of which provide the same designs and surgical techniques as the conventional implants. The information in this study can guide TKA surgeons in making informed choices about implants and identifying implants that could be examined in future controlled studies comparing outcomes between “hypersensitivity-friendly” and conventional implants.
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KEYWORD
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Knee, Arthroplasty, Metal hypersensitivity, Implants
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