Patients who require TKA as a result of arthritis
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: • Painful and disabled knee joint resulting from osteoarthritis, rheumatoid arthritis, or traumatic arthritis where one or more compartments are involved • Body-mass-index (BMI) below 35 kg/m2 • High need to obtain pain relief and improve function • Ability and willingness to follow instructions, including control of weight and activity level, and to return for follow-up evaluations • Ability to work with a mobile device for tele-rehabilitation • Consent form read, understood and signed by patient
Exclusion criteria
Exclusion criteria: • Correction or revision of previous knee joint replacement procedure • Patients selected for a posterior stabilized implant type • Failure of previous joint replacement • Patients with severe pre-operative varus or valgus deformity greater than or equal to 15 degrees • BMI greater than or equal to 35 kg/m2 • Not able or willing to undergo MRI and CT scan • Metal near knee joint (MRI-scan not possible) • Non-correctable varus axis • Uncooperative patient or patient with neurological disorders who is incapable of following directions
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The primary objective of this study is to identify correlations between pre-operative parameters and patient satisfaction after TKA surgery. Pre-operative parameters consist of biomechanical parameters, i.e. kinematics, ligament elongations and contact forces over the range of flexion motion, and planning parameters, i.e. bone geometrical dimensions and hip-knee-ankle angle. Patient satisfaction consists of patient reported outcome measures, i.e. KSS and daily pain scores, and objective measures, i.e. activity and video-based evaluation of range of motion and gait. | — |
Secondary
| Measure | Time frame |
|---|---|
| • To investigate whether the pre-operatively planned implant position corresponds to the post-operative implant position as measured on CT scan • To investigate whether soft tissue releases are necessary during surgery, in which cases and to what extent | — |
Contacts
Zuyderland Medisch Centrum