Abstract
Background
Patella resurfacing remains controversial in primary total knee arthroplasty (TKA). The aim of this study was to investigate if there was a difference in revision rate
and reason for revision within 8 years after single brand primary cemented TKA with
or without patella resurfacing, using data from the Dutch Arthroplasty Register.
Methods
All primary TKA surgeries with a posterior stabilized cemented primary NexGen®, between
2010 and 2013 with diagnosis osteoarthritis were analyzed (n = 5911). Multivariate
cox regression analyses were performed to analyze differences in revision rate between
TKA with or without patella component, and was adjusted for age and previous surgery.
Results
Of 5911 TKA surgeries, 4795 were performed without patella resurfacing (81.1%) and
1116 with patella resurfacing (18.9%). There was a significant difference in patellar
problems as reason for revision between patients after primary TKA with patella resurfacing
(9.3%) and without patella resurfacing (29.9%) (p = 0.01). This was mostly caused
by patellar pain (28.0%). There was no significant difference in cumulative revision
rate within between TKA with patella resurfacing and without patella resurfacing.
Conclusion
In conclusion, 30% of patients who need revision surgery after TKA using NexGen® PS
without patella resurfacing the reason for revision is patella related problems, compared
to 9% after TKA NexGen® PS with patella resurfacing. There was no difference in cumulative
incidence of revision after primary surgery of all TKA’s using NexGen® PS with or
without patella. To reduce the probability of reoperation for patella related problems,
our data suggest the patella should be resurface during primary TKA.
Keywords
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Article info
Publication history
Published online: January 11, 2022
Accepted:
December 18,
2021
Received in revised form:
October 29,
2021
Received:
July 12,
2021
Identification
Copyright
© 2021 Elsevier B.V. All rights reserved.
