A comparative study of the two types of registration methods for portable Imageless Navigation (NAVISWISS) during total hip arthroplasty in the lateral position: Registration in the supine position versus in the lateral position. A prospective randomized controlled trial

A comparative study of the two types of registration methods for portable Imageless Navigation (NAVISWISS) during total hip arthroplasty in the lateral position: Registration in the supine position versus in the lateral position. A prospective randomized controlled trial - A comparative study of the two types of registration methods for portable Imageless Navigation (NAVISWISS) during total hip arthroplasty in the lateral position: Registration in the supine position versus in the lateral position. A prospective randomized controlled trial

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000046854

Enrollment

100

Registered

2022-02-08

Start date

2022-02-08

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

Hip joint disease scheduled for total hip arthroplasty Osteoarthritis, Rheumatoid Arthritis, Femoral head necrosis, Femoral neck fracture, rapidly destructive coxopathy, subchondral insufficiency fracture of the femoral head.

Interventions

Total hip arthroplasty performed with portable imageless navigation system (NAVISWISS). Pelvic registration is performed in the supine position, followed by surgery in the lateral decubitus position.

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patients scheduled for total hip arthroplasty

Exclusion criteria

Exclusion criteria: Patients scheduled for revision total hip arthroplasty. Patients scheduled for total hip arthroplasty with shortening subtrochanteric osteotomy. Patients with extreme pelvic deformity

Design outcomes

Primary

Measure	Time frame
The absolute values of the differences between cup inclination and anteversion angles displayed on the navigation screen and angles measured on the radiograph immediately after surgery and computed tomography 1 month after surgery.	—

Secondary

Measure	Time frame
Any intraoperative and postoperative complications (dislocation, infection, malfunction of navigation during surgery, loosening of pins, etc.)	—

Countries

Japan

Contacts

Public Contacthiroyuki ogawa

Hokusuikai Kinen Hospital Orthopaedic surgery

wscww899@yahoo.co.jp0293033003

Outcome results

None listed

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