Polyethylene spinout in the Attune® Cruciate-Retaining Rotating-Platform (CR RP) total knee arthroplasty performed with a cruciate-sacrificing and measured-resection technique

Knee Surgery & Related Research
Cillian J KeoghJames A Harty

Abstract

Polyethylene (PE) spinout is a known but uncommon complication when using a mobile-bearing (MB) total knee arthroplasty (TKA) design. Sacrificing the posterior cruciate ligament (PCL) is within the manufacturer's recommendations for the Attune® Cruciate-Retaining Rotating-Platform (CR RP) knee design. To discuss the potential aetiology and prevention of spinout in the Attune® CR RP knee. We used a retrospective radiological review from two centres reporting a higher rate of spinout in the Attune® CR RP knee using a cruciate-sacrificing and measured-resection technique when compared to a gap-balancing technique. Three hundred and thirty-two patients were evaluated over a 3-year period. There were 8 out of 279 (2.86%) cases of spinout in our first cohort of patients using a measured-resection technique. There were 0 out of 53 cases of spinout in our second cohort of patients where a gap-balancing technique was used. One spinout was reduced closed, the other seven were initially revised to a thicker RP insert of the same design. Of these seven, three underwent a further revision TKA and one patient required a knee fusion/arthrodesis. This study reports a higher incidence of PE spinout in the Attune® CR RP TKA when a measured-resec...Continue Reading

References

Sep 18, 2009·Clinical Orthopaedics and Related Research·Robert B BourneKory Charron
Oct 1, 2009·Clinical Orthopaedics and Related Research·Douglas A DennisAdrija Sharma
Dec 3, 2013·The Journal of Arthroplasty·Robert A MalinzakMerrill A Ritter
Mar 8, 2014·Clinics in Orthopedic Surgery·Brian K Daines, Douglas A Dennis
Nov 30, 2015·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·R PagotiD Beverland
Oct 24, 2017·The Journal of Arthroplasty·Owen J DiamondDavid E Beverland

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BETA
X-ray

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Attune®

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