The trial group will receive with Elf_Care unit (Hot-Cold & Electrotherapy) during physiotherapy treatment ( 28 minutes twice a week) The protocol treatment includes 28 minutes of cycling cold/hot/cold/hot treatment (2*7 min cold: 10…15 degrees; 2*7 min hot: 39..42 degrees,). During this 28 minutes the patient also receive tolerable intensity Premodulated Interferential current with sweep Beat frequency (3Hz…200Hz), Carrier frequency 5kHz ; Electrodes setup: Thermo Electrode and 2 Regular Electrodes After the treatment the control and trail group will evaluate with 0-10 visual analogue scale VAS, Oxford Knee Score and WOMAC The population will receive treatment twice a week for one month.