RT Journal Article
SR Electronic
T1 4 Change in patient-reported outcomes in patients with and without mechanical symptoms undergoing arthroscopic meniscal surgery: a prospective cohort study
JF British Journal of Sports Medicine
JO Br J Sports Med
FD BMJ Publishing Group Ltd and British Association of Sport and Exercise Medicine
SP A2
OP A2
DO 10.1136/bjsports-2018-099334.4
VO 52
IS Suppl 1
A1 Kenneth Pihl
A1 Aleksandra Turkiewicz
A1 Martin Englund
A1 Stefan Lohmander
A1 Uffe Jørgensen
A1 Nis Nissen
A1 Jeppe Schjerning
A1 Jonas B Thorlund
YR 2018
UL http://bjsm.bmj.com/content/52/Suppl_1/A2.1.abstract
AB Introduction Mechanical symptoms are considered an important indication for meniscal surgery. We investigated if young (≤40 years) and older (>40 years) patients, respectively, with preoperative mechanical symptoms improved more in patient-reported outcomes after meniscal surgery than those without mechanical symptoms.Materials and methods Patients from Knee Arthroscopy Cohort Southern Denmark (KACS) undergoing arthroscopic meniscal surgery between February 2013 and January 2015 completed online questionnaires pre-surgery, and at 12 and 52 weeks follow-up. Questionnaires included self-reported presence of mechanical symptoms (i.e. sensation of catching and/or locking) and the Knee Injury and Osteoarthritis Outcome Score (KOOS). Between-group differences in change in 4 of 5 KOOS subscales (KOOS4) from baseline to 52 weeks were analysed using an adjusted mixed linear model.Results 150 young patients (mean age 31 (SD 7), 67% men) and 491 older patients (mean age 54 (SD 9), 53% men) constituted the baseline cohorts. In general, patients with mechanical symptoms had worse self-reported outcomes before surgery. At 52 weeks follow-up, young patients with preoperative mechanical symptoms had improved more in KOOS4 scores than young patients without preoperative mechanical symptoms (adjusted mean difference 10.5, 95% CI: 4.3 to 16.6), but did not exceed their absolute KOOS4 scores. No essential difference in improvement was observed between older patients with or without mechanical symptoms (adjusted mean difference 0.7, 95% CI: −2.6 to 3.9).Conclusion Young patients (≤40 years) with preoperative mechanical symptoms experienced greater improvements after arthroscopic meniscal surgery compared to young patients without mechanical symptoms. Randomised controlled trials are needed to confirm this potential subgroup benefit.