Is Second Knee at Risk During Simultaneous Bilateral Total Knee Arthroplasty.

Is Second Knee at Risk During Simultaneous Bilateral Total Knee Arthroplasty.

The effects of single-team simultaneous bilateral total knee arthroplasty on peri- and postoperative complications are clear. The investigators hypothesized that second knee at risk during single-team simultaneous bilateral total knee arthroplasty and have more early postoperative complication rates than the first knee. Therefore, this prospective study compared minor and major local complications for 90 days postoperatively between the first and second during knee single-team simultaneous bilateral total knee arthroplasty.

The investigators would like to compare operation related technical complications and periprosthetic joint infection rate between the first and second knee.

Inclusion Criteria:

• Primary bilateral knee osteoarthritis with refractory to conservative treatment
• Patients who accept participation in the research and the randomization

Exclusion Criteria:

• no history of malignancy
• less than 75 years old
• severe cardiac insufficiency and morbid obesity