Usefulness of an Accelerometer-Based Portable Navigation System in Total Knee Arthroplasty

Usefulness of an Accelerometer-Based Portable Navigation System in Total Knee Arthroplasty - Usefulness of an Accelerometer-Based Portable Navigation System in Total Knee Arthroplasty

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000026742

Enrollment

200

Registered

2017-03-30

Start date

2014-02-01

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Osteoarthritis of the knee

Interventions

From February 2014 to May 2015,121 patients were operated upon using the KneeAlign2 system for distal femoral resection (KA2 group. From February 2014 to May 2015,121 patients underwent TKA using a co

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Osteoarthritis of the knee

Exclusion criteria

Exclusion criteria: none

Design outcomes

Primary

Measure	Time frame
Full length hip to ankle anterior-posterior weight bearing radiographs were obtained at 2 weeks after the surgery. The femoral component varus/valgus alignment was evaluated as follows; the femoral mechanical axis was determined by drawing a line from the center of the femoral head to the center of the intercondylar notch of the implant, then the angle between the femoral mechanical axis and a line connecting the most distal aspects of the medial and lateral femoral condyles was defined as the femoral component alignment in the coronal plane.	—

Measure

Time frame

Full length hip to ankle anterior-posterior weight bearing radiographs were obtained at 2 weeks after the surgery. The femoral component varus/valgus alignment was evaluated as follows; the femoral mechanical axis was determined by drawing a line from the center of the femoral head to the center of the intercondylar notch of the implant, then the angle between the femoral mechanical axis and a line connecting the most distal aspects of the medial and lateral femoral condyles was defined as the femoral component alignment in the coronal plane.

—

Countries

Japan

Contacts

Public ContactYoshinori Kadoya

Hanwa Joint Reconstruction Center, Hanwa Daini Senboku Hospita Department of Orthopaedic Surgery

kadoya.yoshinori@kinshukai.or.jp072-277-1401

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026