Comparison of the Tibiofemoral Rotational Alignment After Mobile and Fixed Bearing Total Knee Arthroplasty

Seoul National University Hospital80 enrolled

Overview

The anatomic landmark for the anteroposterior (AP) axis of the proximal tibia and its variability was investigated in this study in order to determine whether a certain landmark could be employed as a reference axis for the proximal tibia after rotating platform mobile bearing (RP-MB) and fixed bearing (FB) total knee arthroplasties (TKAs).

Reference of tibial AP axis for implanting tibial component in total knee arthroplasty have not been concluded. This study can suggest appropriate method for alingning the tibial component to accurate tibial AP axis.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

NONE

Enrollment

Conditions

Osteoarthritis

Interventions

total knee arthroplastyDEVICE

Mobile Bearing Total knee Arthroplasty

total knee arthroplastyDEVICE

Fixed Total Knee Arthroplasty

Eligibility

Sex: ALL

Medical Language ↔ Plain English

Inclusion Criteria: * Primary osteoarthritis Exclusion Criteria: * infection * inflammatory arthritis * reoperation * severe deformity

Outcomes

Primary Outcomes

Tibial anteroposterior axis relative to femoral anteroposterior axis

Tibial anteroposterior axis relative to femoral anteroposterior axis on Computed tomogram images

Time frame: postoperative 2 weeks

Data from ClinicalTrials.gov

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