Arthroscopic Meniscal Surgery Is Equivalent to Nonoperative Management


Am Fam Physician. 2017 Jul 1;96(1):55.

Clinical Question

Is arthroscopy better than nonsurgical treatment for patients with meniscal tears?

Bottom Line

The existing research base, with biases that typically make interventions look better, is unable to demonstrate that arthroscopy for meniscal injuries is any better than nonoperative approaches. Because this is a costly intervention and is being used more often, perhaps insurance companies should reevaluate whether to continue paying for it. (Level of Evidence = 1a–)


These authors searched multiple databases, including registries of clinical trials and the reference lists of retrieved studies, to identify randomized trials of systematic reviews published in English. Two authors independently decided which studies to include and determined the risk of bias in the included studies. They resolved disagreements through conversation and, when necessary, through third-party adjudication. Ultimately, they included nine randomized trials and eight systematic reviews. The clinical trials included 68 to 351 patients and the systematic reviews included 98 to 1,374 patients. All of the systematic reviews were published after 2012, so the variation in sample size is rather striking and reflects the inclusion criteria. For example, the largest systematic review evaluated case series, only slightly less biased than expert opinion in determining the effectiveness of an intervention. The main recurring problems with the randomized trials were the lack of adequate masking and the selective outcome reporting. Only two of the trials compared arthroscopy with sham surgery. The others used active comparisons (e.g., resection, exercise, physical therapy, steroid injections, bioabsorbable arrows). The follow-up duration for the studies ranged from six months to five years. The studies also used several different outcome assessments: repeat tear, radiographic findings, pain on a visual analog scale, Western Ontario and McMaster Universities Osteoarthritis Index score, Knee

POEMs (patient-oriented evidence that matters) are provided by EssentialEvidence Plus, a point-of-care clinical decision support system published by Wiley-Blackwell. For more information, please see http://www.essentialevidenceplus.com. Copyright Wiley-Blackwell. Used with permission.

For definitions of levels of evidence used in POEMs, see http://www.essentialevidenceplus.com/product/ebm_loe.cfm?show=oxford.

To subscribe to a free podcast of these and other POEMs that appear in AFP, search in iTunes for “POEM of the Week” or go to http://goo.gl/3niWXb.

This series is coordinated by Sumi Sexton, MD, Associate Deputy Editor.

A collection of POEMs published in AFP is available at https://www.aafp.org/afp/poems.



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Jun 15, 2018

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