Primary bilateral OA knees patients Primary bilateral OA knees Simultaneous bilateral TKA Accelerometer-based computer navigation Blood loss Blood transfusion
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: - Patients age > 50 years with primary bilateral OA knees and scheduled for sequential (simultaneous) bilateral TKA - Kellgren-Lawrence classification III-IV for OA knees
Exclusion criteria
Exclusion criteria: - Previous knee surgery - History of knee infection - History of thromboembolic event or bleeding disorder - History of current anticoagulants taking within 7 days prior to surgery - Inflammatory joint disease e.g. rheumatoid arthritis - Knee deformity which complex TKA is performed e.g. stem insertion, bone or metal augmentation
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Calculated blood loss Postoperative day 1,2,5 Hemoglobin balance, which calculated from difference of preoperative and postoperative hemoglobin | — |
Secondary
| Measure | Time frame |
|---|---|
| Blood transfusion rate Admission period Volume of blood transfusion,Pain score Postoperative day 1-5 Visual analogue scale for pain score,Morphine consumption Postoperative day 1-5 Amount of morphine use | — |
Countries
Thailand
Contacts
Faculty of Medicine Siriraj Hospital, Mahidol University