Comparative Effect of Mechanical and Functional Alignment in Bilateral Total Knee Arthroplasty on Ankle Alignment : a Randomized Controlled Trial
Overview
- Phase
- Not Applicable
- Intervention
- Not specified
- Conditions
- Arthropathy of Knee
- Sponsor
- Rajavithi Hospital
- Enrollment
- 20
- Locations
- 1
- Primary Endpoint
- Radiographic outcomes : Hip-knee-ankle angle
- Status
- Completed
- Last Updated
- last year
Overview
Brief Summary
Mechanical alignment (MA) in total knee arthroplasty (TKA) is the most commonly used with well-documented long-term results, however 20% of patients express dissatisfaction following primary TKA. Alternative alignment philosophies have been proposed, aiming to improve patient clinical outcomes and satisfaction. However, evaluation is focused mainly on knee alignment, the pathological findings and other adaptational changes in the ankles and hips are usually neglected.
Thia study aim to comparative effect between mechanical and functional alignment in patient undergone bilateral robotic TKA on ankle alignment and functional outcomes.
Investigators
Eligibility Criteria
Inclusion Criteria
- •Age 20-80 years
- •Symptomatic bilateral knee Osteoarthritis requiring primary TKA
- •Willing to undergo bilateral simultaneous TKA
- •Able to give informed consent
Exclusion Criteria
- •ligament deficiency requiring constrained prosthesis
- •bone loss with augmentation need
- •history of fracture around knee or previous osteotomy
- •history of ankle fracture
- •patient with neuromuscular disorder or movement disorder
- •patient is unable to attend the study follow-up program
Outcomes
Primary Outcomes
Radiographic outcomes : Hip-knee-ankle angle
Time Frame: pre-operative within 2 weeks and post-operative at 2,4,8,12 weeks
angle in degree between line from center of head of Femur to intercondylar notch and line from tibial interspinous to center of tibial plafond
Radiographic outcomes :Talar inclination
Time Frame: pre-operative within 2 weeks and post-operative at 2,4,8,12 weeks
angle in degree between talar dome and vertical axis
Radiographic outcomes : Tibial plafond inclination
Time Frame: pre-operative within 2 weeks and post-operative at 2,4,8,12 weeks
angle in degree between subchondral plate of distal tibial articular surface and vertical axis
Radiographic outcomes : Tibiotalar tilt angle
Time Frame: pre-operative within 2 weeks and post-operative at 2,4,8,12 weeks
angle in degree between subchondral plate of distal tibial articular surface and talar dome
Secondary Outcomes
- Quality of Life score : EQ-5D-5L(pre-operative within 2 weeks and post-operative at 2,4,8,12 weeks)
- Clinical outcomes : Knee injury and Osteoarthritis Outcome Score (KOOS)(pre-operative within 2 weeks and post-operative at 2,4,8,12 weeks)
- Forgotten Joint Score(pre-operative within 2 weeks and post-operative at 2,4,8,12 weeks)
- Clinical outcomes : American Orthopaedic Foot and Ankle Society (AOFAS) Ankle-Hindfoot Score(pre-operative within 2 weeks and post-operative at 2,4,8,12 weeks)