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

Seoul National University

Status and phase: Completed; Phase 4

Conditions: Osteoarthritis

Treatments: Device: total knee arthroplasty

Study type: Interventional

Funder types: Other

Identifiers

NCT01751334

SNUHOSKNEE01-RPFLPSF

Details and patient eligibility

About

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).

Full description

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.

Enrollment: 80 patients

Sex: All

Volunteers: No Healthy Volunteers

Inclusion criteria

• Primary osteoarthritis

Exclusion criteria

• infection
• inflammatory arthritis
• reoperation
• severe deformity

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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80 participants in 2 patient groups

Mobile Bearing

Experimental group

Description:

Mobile bearing total knee arthroplasty

Treatment:

Device: total knee arthroplasty

Device: total knee arthroplasty

Fixed Bearing

Active Comparator group

Description:

Fixed Bearing total knee arthroplasty

Treatment:

Device: total knee arthroplasty

Device: total knee arthroplasty