Arthroscopic partial meniscectomy versus placebo surgery for a degenerative meniscus tear : a 2-year follow-up of the randomised controlled trial

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Sihvonen , R , Paavola , M , Malmivaara , A , Itälä , A , Joukainen , A , Nurmi , H , Kalske , J , Ikonen , A , Järvelä , T , Järvinen , T A H , Kanto , K , Karhunen , J , Knifsund , J , Kröger , H , Kääriäinen , T , Lehtinen , J , Nyrhinen , J , Paloneva , J , Päiväniemi , O , Raivio , M , Sahlman , J , Sarvilinna , R , Tukiainen , S , Välimäki , V-V , Äärimaa , V , Toivonen , P , Järvinen , T L N & FIDELITY Finnish Degenerative 2018 , ' Arthroscopic partial meniscectomy versus placebo surgery for a degenerative meniscus tear : a 2-year follow-up of the randomised controlled trial ' , Annals of the Rheumatic Diseases , vol. 77 , no. 2 , pp. 188-195 . https://doi.org/10.1136/annrheumdis-2017-211172

Title: Arthroscopic partial meniscectomy versus placebo surgery for a degenerative meniscus tear : a 2-year follow-up of the randomised controlled trial
Author: Sihvonen, Raine; Paavola, Mika; Malmivaara, Antti; Itälä, Ari; Joukainen, Antti; Nurmi, Heikki; Kalske, Juha; Ikonen, Anna; Järvelä, Timo; Järvinen, Tero A. H.; Kanto, Kari; Karhunen, Janne; Knifsund, Jani; Kröger, Heikki; Kääriäinen, Tommi; Lehtinen, Janne; Nyrhinen, Jukka; Paloneva, Juha; Päiväniemi, Outi; Raivio, Marko; Sahlman, Janne; Sarvilinna, Roope; Tukiainen, Sikri; Välimäki, Ville-Valtteri; Äärimaa, Ville; Toivonen, Pirjo; Järvinen, Teppo L. N.; FIDELITY Finnish Degenerative
Contributor: University of Helsinki, Department of Surgery
University of Helsinki, I kirurgian klinikka (Töölö)
University of Helsinki, Department of Surgery
University of Helsinki, I kirurgian klinikka (Töölö)
University of Helsinki, Clinicum
University of Helsinki, Clinicum
Date: 2018-02
Language: eng
Number of pages: 8
Belongs to series: Annals of the Rheumatic Diseases
ISSN: 0003-4967
URI: http://hdl.handle.net/10138/233491
Abstract: Objective To assess if arthroscopic partial meniscectomy (APM) is superior to placebo surgery in the treatment of patients with degenerative tear of the medial meniscus. Methods In this multicentre, randomised, participant-blinded and outcome assessor-blinded, placebo-surgery controlled trial, 146 adults, aged 35-65 years, with knee symptoms consistent with degenerative medial meniscus tear and no knee osteoarthritis were randomised to APM or placebo surgery. The primary outcome was the between-group difference in the change from baseline in the Western Ontario Meniscal Evaluation Tool (WOMET) and Lysholm knee scores and knee pain after exercise at 24 months after surgery. Secondary outcomes included the frequency of unblinding of the treatment-group allocation, participants' satisfaction, impression of change, return to normal activities, the incidence of serious adverse events and the presence of meniscal symptoms in clinical examination. Two subgroup analyses, assessing the outcome on those with mechanical symptoms and those with unstable meniscus tears, were also carried out. Results In the intention-to-treat analysis, there were no significant between-group differences in the mean changes from baseline to 24 months in WOMET score: 27.3 in the APM group as compared with 31.6 in the placebo-surgery group (between-group difference, -4.3; 95% CI, -11.3 to 2.6); Lysholm knee score: 23.1 and 26.3, respectively (-3.2; -8.9 to 2.4) or knee pain after exercise, 3.5 and 3.9, respectively (-0.4; -1.3 to 0.5). There were no statistically significant differences between the two groups in any of the secondary outcomes or within the analysed subgroups. Conclusions In this 2-year follow-up of patients without knee osteoarthritis but with symptoms of a degenerative medial meniscus tear, the outcomes after APM were no better than those after placebo surgery. No evidence could be found to support the prevailing ideas that patients with presence of mechanical symptoms or certain meniscus tear characteristics or those who have failed initial conservative treatment are more likely to benefit from APM.
Subject: knee osteoarthritis
orthopaedic surgery
treatment
KNEE OSTEOARTHRITIS
MECHANICAL SYMPTOMS
UNITED-STATES
MEDICINE
METAANALYSIS
RELIABILITY
MANAGEMENT
REPAIR
CLASSIFICATION
GUIDELINES
3126 Surgery, anesthesiology, intensive care, radiology
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