No evidence for subgroups of patients with knee osteoarthritis and a torn meniscus who would benefit from meniscus surgery

Wednesday 5 October 2022, 10:30
PhD defence
Facts and frictions regarding the treatment of the degenerative knee
Speaker or Ph. D. student
S.R.W. Wijn MSc.
prof. dr. M.M. Rovers
dr. J.P.C. Grutters, dr. G.J. Hannink
Faculty of Medical Sciences

If a torn meniscus is diagnosed in patients with osteoarthritis in the knee, the torn part can be surgically removed. Several studies have been published in the past decade that show that this surgical procedure is hardly beneficial compared to “placebo” operations or physiotherapy. However, the surgery is still performed regularly because it is thought that some patients may benefit from the procedure.

In this thesis we searched for subgroups of patients in whom surgery may result in an improvement in pain or knee function. A very large dataset of 605 patients was used for this purpose. No subgroups could be identified. €54 to €129 million can be saved if this procedure is no longer performed. Therefore, it is better if fewer surgeries are performed to treat a meniscus tear in patients with knee osteoarthritis.

Stan Wijn (1991) obtained his Master's degree in Biomedical Sciences, cum laude, at the Radboud University in 2017 after which he worked as Advisor Medical Technology at MedValue. In 2018 he started with his PhD research as part of the Evidence based surgery group of the Radboudumc. Currently, he is working as the Chief Technical Officer of a new startup: Medip Analytics.

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