Comparison between Patellar Resurfacing and Retention in Total Knee Arthroplasty Regarding the Postoperative Satisfaction of Patients and Patellar Crepitus

Document Type : RESEARCH PAPER

Authors

1 Tehran University of Medical Sciences, Tehran, Iran

2 Tehran University of Medical Sciences

3 Imam Khomeini Hospital Complex Orthopedic Surgury Department, Medical Faculty, Tehran Univercity, Iran

Abstract

Background: Patellar crepitus after total knee arthroplasty (TKA) is not uncommon. The choice between patellar
resurfacing or retention in TKA has remained controversial. Therefore, this randomized controlled trial aimed to evaluate
the impact of patellar resurfacing on the incidence of patellar crepitus. In addition, we compared the clinical outcomes
and satisfaction between the patients who underwent patellar retention or resurfacing.
Methods: A total of 63 patients randomly received patellar resurfacing or non-resurfacing TKA by one surgeon at Imam
Khomeini Hospital Complex, Tehran University of Medical Sciences, Iran during May 2014-February 2017. Finally,
29 patients in the resurfaced group and 44 subjects with retained patella were evaluated pre-op and in an average
follow-up period of 8.68 months using the clinical Knee Society Score (KSS), functional KSS, and Knee injury and
Osteoarthritis Outcome Score (KOOS).
Results: Our findings demonstrated no significant difference between the two groups regarding the satisfaction
of patients, KSS, and KOOS. It was shown that the latter scores improved in both groups in the follow-up period.
Nonetheless, patellar crepitus was not statistically different between the two groups.
Conclusion: According to the results of the present study, patellar resurfacing did not lead to decreased patellar
crepitus or enhanced clinical outcomes of TKA.
Level of evidence: I

Keywords

Main Subjects

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The Archives of Bone and Joint Surgery
Volume 7, Issue 5
September 2019
Pages 441-444

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History

  • Receive Date: 14 November 2017
  • Accept Date: 10 October 2018

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