The goal of this RCT is to investigate efficacy between restricted kinematic alignment and mechanical alignment TKA in simultaneous bilateral TKA patients. The main question\[s\] it aims to answer are: * Does rKA have better functional outcomes than MA in simultaneous bilateral TKA patients? * Does rKA have lower pain score than MA in simultaneous bilateral TKA patients? Participants will undergo simultaneous bilateral TKA and randomized one side will use rKA and the other side will use MA.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Enrollment
50
TKA using restricted kinematic alignment under robotic assisted surgery (MAKO).
TKA using mechanical alignment under robotic assisted surgery (MAKO).
Thammasat University
Khlong Luang, Changwat Pathum Thani, Thailand
RECRUITINGForgotten joint score
Point 0-100 (0 mean worst, 100 mean best)
Time frame: 6 weeks, 3months, 6 months, 1 year and 2 years after surgery
Modified WOMAC score
Point 0-96 (0 mean best, 100 mean worst)
Time frame: 6 weeks, 3months, 6 months, 1 year and 2 years after surgery
Range of motion
Using long arm goniometer (degrees)
Time frame: 6 weeks, 3months, 6 months, 1 year and 2 years after surgery
Pain score
Using visual analog scale (0-10, 0 mean best, 10 mean worst)
Time frame: every 6 hours for 2 days after surgery then once a day for 2 weeks after surgery then once a week until 3 months after surgery
Hip knee ankle angle
Evaluate by long radiograph (degrees)
Time frame: 6 weeks, 3months, 6 months, 1 year and 2 years after surgery
Complications
For example periprosthetic fracture, infection or aspetic loosening
Time frame: Until 2 years after surgery
Incidence of soft tissue releasing
Record soft tissue releasing intraoperative
Time frame: During surgery
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