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. 2023 Jun 15;31(12):634-640.
doi: 10.5435/JAAOS-D-22-00804. Epub 2023 Apr 14.

The Relationship Between the Timing of Knee Osteoarthritis Diagnoses and Arthroscopic Partial Meniscectomy

Semran B Thamer  1 , Corey T Resnick, Paul M Werth, David S Jevsevar
Affiliations

The Relationship Between the Timing of Knee Osteoarthritis Diagnoses and Arthroscopic Partial Meniscectomy

Semran B Thamer et al. J Am Acad Orthop Surg. .

Abstract

Background: There is ongoing debate regarding the efficacy of arthroscopic partial meniscectomy (APM) for meniscus tears in patients with knee osteoarthritis (OA). Some insurance payers will not authorize APM in patients with knee OA. The purpose of this study was to assess the timing of knee OA diagnoses in patients undergoing APM.

Methods: A large commercial national claims data set containing deidentified information from October 2016 to December 2020 was used to identify patients undergoing arthroscopic partial meniscectomy. Data were analyzed to determine whether patients in this group had a diagnosis of knee OA within 12 months before surgery and for the presence of a new diagnosis of knee OA at 3, 6, and 12 months after APM.

Results: Five lakhs thousand nine hundred twenty-two patients with a mean age of 54.0 ± 8.52 years, with the majority female (52.0%), were included. A total of 197,871 patients underwent APM without a diagnosis of knee OA at the time of the procedure. Of these patients, 109,427 (55.3%) had a previous diagnosis of knee OA within 12 months preceding surgery, and 24,536 (12.4%), 15,596 (7.9%), and 13,301 (6.7%) patients were diagnosed with knee OA at 3, 6, and 12 months after surgery, respectively.

Conclusion: Despite evidence against APM in patients with knee OA, more than half of the patients (55.3%) had a previous diagnosis of OA within 12 months of surgery and 27.0% received a new diagnosis of knee OA within one year of surgery. A notable number of patients had a diagnosis of knee OA either before or shortly after APM.

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