The purpose of this study is to determine whether intraoperative computer-assisted navigation improves prosthetic implant positioning as compared to conventional intraoperatve instrumentation in Total Knee Arthroplasty (TKA).
Primary data to be obtained is to determine whether mechanical axis of the limb malignment differs between patients whom have computer-assisted TKA and those treated with conventional intraoperative instrumentation. Three months after surgery follow-up radiographic data will provide evidence on the initial implant position as determined with a series of x-rays including: full length standing, standard AP weight bearing, lateral, patellar, kneelingfilm views and CT evaluation. In addition, a correlation betweeen the CT measures and the kneeling x-ray can be performed at this time. Clinical (Knee Scale Society, WOMAC, and SF-36) data will also be obtained at the three month interval.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
200
Mayo Clinic
Jacksonville, Florida, United States
To determine whether mechanical axis of the limb malalignment differs between patients whom have computer-assisted TKA and those treated with conventional intraoperative instrumentation
To compare the frontal alignment of the femoral and tibial components from full length standing radiographs
To compare sagittal alignment of the femoral and tibial components from lateral radiographs
To compare the rotation of the femoral and tibial components from CT Scan.
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