Polyethylene spinout in the Attune® Cruciate-Retaining Rotating-Platform (CR RP) total knee arthroplasty performed with a cruciate-sacrificing and measuredresection technique
10.1186/s43019-020-00057-0
- Author:
Cillian J. KEOGH
1
;
David MULCAHY
;
Declan REIDY
;
David E. BEVERLAND
;
James A. HARTY
Author Information
1. Department of Trauma and Orthopaedic Surgery, Cork University Hospital/South Infirmary Victoria University Hospital, Wilton, Cork, T12 DC4A, Republic of Ireland
- Publication Type:R E S E A R C H A R T I C L E
- From:The Journal of Korean Knee Society
2020;32(3):e36-
- CountryRepublic of Korea
- Language:English
-
Abstract:
Methods: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 gapbalancing technique. Three hundred and thirty-two patients were evaluated over a 3-year period.
Results: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.
Conclusions:This study reports a higher incidence of PE spinout in the Attune® CR RP TKA when a measuredresection technique in combination with PCL resection is performed. We recommend a gap-balancing technique with conservative soft-tissue release if the surgeon is planning to sacrifice the PCL in the Attune® CR RP.
