• Orthop J Sports Med · Jan 2020

    Knee Arthroscopic Surgery in Middle-Aged Patients With Meniscal Symptoms: A 5-Year Follow-up of a Prospective, Randomized Study.

    • Sofi Sonesson, Joanna Kvist, Jafar Yakob, Henrik Hedevik, and Håkan Gauffin.
    • Unit of Physiotherapy, Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden.
    • Orthop J Sports Med. 2020 Jan 1; 8 (1): 2325967119893920.

    BackgroundArthroscopic meniscal surgery is a common orthopaedic procedure in middle-aged patients, but the efficacy of this procedure has been questioned. In this study, we followed up the only randomized controlled trial that has shown a 1-year benefit from knee arthroscopic surgery with an exercise program compared with an exercise program alone.PurposeTo (1) evaluate whether knee arthroscopic surgery combined with an exercise program provided an additional 5-year benefit compared with an exercise program alone in middle-aged patients with meniscal symptoms, (2) determine whether baseline mechanical symptoms affected the outcome, and (3) compare radiographic changes between treatment groups.Study DesignRandomized controlled trial; Level of evidence, 1.MethodsOf 179 eligible patients aged 45 to 64 years, 150 were randomized to either a 3-month exercise program (nonsurgery group) or to the same exercise program plus knee arthroscopic surgery (surgery group) within 4 weeks. Radiographs were assessed, according to the Kellgren-Lawrence grade, at baseline and at the 5-year follow-up. The primary outcome was the change in Knee injury and Osteoarthritis Outcome Score (KOOS)-Pain (KOOSPAIN) subscore from baseline to the 5-year follow-up. We performed an as-treated analysis.ResultsA total of 102 patients completed the 5-year questionnaire. At the 5-year follow-up, both groups had significant improvement in KOOSPAIN subscores, although there was no significant change from the 3-year scores. There was no between-group difference in the change in the KOOSPAIN subscore from baseline to 5 years (3.2 points [95% CI, -6.1 to 12.4]; adjusted P = .403). In the surgery group, improvement was greater in patients without mechanical symptoms than in those with mechanical symptoms (mean difference, 18.4 points [95% CI, 8.7 to 28.1]; P < .001). Radiographic deterioration occurred in 60% of patients in the surgery group and 37% of those in the nonsurgery group (P = .060).ConclusionKnee arthroscopic surgery combined with an exercise program provided no additional long-term benefit after 5 years compared with the exercise program alone in middle-aged patients with meniscal symptoms. Surgical outcomes were better in patients without mechanical symptoms than in patients with mechanical symptoms during the preoperative period. Radiographic changes did not differ between treatment groups.RegistrationNCT01288768 (ClinicalTrials.gov identifier).© The Author(s) 2020.

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