• Maren Janko, René Verboket, Maria Genari, Johannes Frank, and Ingo Marzi.
• Department of Trauma-, Hand- and Reconstructive Surgery, Goethe University Frankfurt, University Hospital, Frankfurt am Main, Germany. maren.janko@kgu.de.
• Eur J Trauma Emerg Surg. 2022 Oct 1; 48 (5): 4149-4155.

IntroductionThe aim of this article is to show a new concept of indication and application of the MUTARS® RS Cup System in primary and revision hip arthroplasty. This integrated system is applicable for different acetabular cup replacements in patients with acetabular fractures or instable defects, as well as periprosthetic acetabular fractures. The MUTARS® RS Cup System is a cementless revision cup for insertion into the acetabulum with an integrated polyethylene cup, which fits to a regular or bipolar head. This system replaces the conventional approach for acetabular revision with a Burch-Schneider ring, in which a normal polyethylene cup is cemented. This interface with its complications is avoided with this system of a titanium revision cup with integrated polyethylene cup. Steps of preoperative planning and the intraoperative implementation will be highlighted in this article.Material And MethodsThis system was applied in 49 patients with 52 MUTARS® RS Cup Implantations in 30 males, 22 females, with an average age of 76,1 years (36,9-94,4 years).Results And DiscussionThe system shows a good operative feasibility, as well as a reliable handling and safe method for stable treatment of non-reconstructable acetabular fractures or acetabular incongruencies and instabilities.© 2022. The Author(s).

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