Tanut AranchayanontJitkomut SongsiriKakanand SrungboonmeeChulalongkorn UniversityMahidol University2018-12-212019-03-142018-12-212019-03-142017-02-08IEEE Region 10 Annual International Conference, Proceedings/TENCON. (2017), 1747-175121593450215934422-s2.0-85015401289https://repository.li.mahidol.ac.th/handle/123456789/42431© 2016 IEEE. Patellar resurfacing during total knee arthroplasty (TKA) depends on surgeon's decisions and has been discussed if resurfacing is better than non-resurfacing. This paper aims to discuss the similarities and differences of the vibroarthrographic (VAG) signal of the knee underwent TKA with either resurfaced or non-resurfaced patella in time-frequency domain. Motion trends and noises were filtered and then processed with Ensemble Empirical Model Decomposition (EEMD) and Detrended Fluctuation Analysis (DFA), which decomposes a non-stationary signal into a set of modes and discards modes that are uncorrelated. However, time-frequency analysis of processed signals suggests no significant differences between both classes and the results rather depend on the individual knee condition.Mahidol UniversityComputer ScienceEngineeringConference PaperSCOPUS10.1109/TENCON.2016.7848318