Coronal spinal imbalance in well-aligned bilateral total knee arthroplasty patients. Osteoarthritis (OA) knee Bilateral total knee arthroplasty (TKA) Coronal spinal imbalance Coronal spinal malalignment Standing full-length body anteroposterior (AP) radiograph Unbalanced spine Clinical outcomes The Knee Society Score (KSS) The Forgotten joint score (FJS)
Conditions
Interventions
radiographic distance between C7 plumb line to central sacral vertical index less than 2 cm,radiographic distance between C7 plumb line to central sacral vertical index more than 2 cm
Other,Other
Balanced spine,Unbalanced spine
Sponsors
None listed
Eligibility
Sex/Gender
All
Age
18 Years to 90 Years
Inclusion criteria
Inclusion criteria: 1.more than 50 years of age 2.Symmetrically well-aligned bilateral TKA patients. 3.Last follow-up period more than 1 year postoperative.
Exclusion criteria
Exclusion criteria: 1. Patients who have active spinal disease causing severe back pain (Visual Analog Scale pain score at rest >3), including severe degenerative spinal canal stenosis, recent spinal trauma within the past 3 months, recent spinal surgery within the past 3 months, etc. 2. Unable to stand still according to the standing full-length body AP radiograph protocol. 3. Serious concomitant medical illness or major co-morbidity 4. Major neurological conditions. 5. Inability to communicate or unwilling to give informed consent.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| side preference in knee usage At final follow-up, a minimum of 12 months after bilateral TKA Patient-reported questionnaire (custom-developed; includes Likert-scale and direct preference questions) | — |
Secondary
| Measure | Time frame |
|---|---|
| clinical outcomes At final follow-up, a minimum of 12 months after bilateral TKA The Knee Society Score (KSS), The Forgotten joint score (FJS),range of motion At final follow-up, a minimum of 12 months after bilateral TKA goniometer,hip-knee-ankle angle At final follow-up, a minimum of 12 months after bilateral TKA radiograph | — |
Countries
Thailand
Contacts
Public ContactThanakrita Siripullop
Chulalongkorn university
Outcome results
None listed