A Novel Technique for Restricted Kinematic Alignment Total Knee Arthroplasty Without Computer-Assisted Devices
Yuzuru Sakakibara, Yusuke Yasutani, Akimitsu Oyama, Atsushi Teramoto
TL;DR
This paper introduces a new device and technique for performing knee replacement surgery without the need for expensive computer-assisted tools.
Contribution
A novel device and technique for restricted kinematic alignment total knee arthroplasty without computer-assisted devices.
Findings
The new device enables precise cartilage thickness measurement and osteotomy angle adjustment.
The heel-lift technique provides a reproducible method for tibial osteotomy volume and angle determination.
The innovations make KA and rKA-TKA feasible in any surgical setting without CAS.
Abstract
Kinematic-alignment total knee arthroplasty (KA-TKA) aims to restore natural limb alignment and joint line obliquity, thereby improving patient satisfaction. Restricted KA-TKA (rKA-TKA) addresses abnormal knee anatomies and seeks to replicate natural anatomical structures within safe alignment boundaries. This study introduces a novel device and technique that enables rKA-TKA without computer-assisted surgery (CAS). The new device allows for precise cartilage thickness measurement and adjustment of osteotomy angles, facilitating accurate alignment. A heel-lift technique for tibial osteotomy is presented, offering a reproducible method for determining the osteotomy volume and angle. These innovations make KA and rKA-TKA feasible in any surgical setting, avoiding the high costs and limited availability associated with CAS.
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Taxonomy
TopicsTotal Knee Arthroplasty Outcomes · Knee injuries and reconstruction techniques · Orthopaedic implants and arthroplasty