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Comparison of the accuracy for cup orientation in total hip arthroplasty

Comparison of the accuracy of AR hip navigation system and alignment gu ide for cup orientation in total hip arthroplasty

Status
Recruiting
Phases
Phase 4
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCT1062210084
Enrollment
50
Registered
2022-03-10
Start date
2024-02-06
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

Osteoarthrosis, osteonecrosis of the femoral head, rheumatoid arthritis, femoral neck fracture Osteoarthrosis, osteonecrosis of the femoral head, rheumatoid arthritis, femoral neck fracture

Interventions

Use of navigation system or alignment guide in total hip arthroplasty
D000085022

Sponsors

Tetsunaga Tomonori
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1) Patients with osteoarthritis of the hip and rheumatoid arthritis with narrowing of the joint space by plain X-ray, patients with osteonecrosis of the femoral head with collapse of the femoral head by plain X-ray, and femoral neck fracture patient. 2) Patients with femoral head deviation less than 50% of femoral head diameter on plain X-ray (Crowe classification I, II) 3) Patients with hip joint range of motion of 90 degrees or more in flexion and 20 degrees or more in abduction 4) Patients aged 20 years or older at the time of consent acquisition 5) Patients who received sufficient explanation before participating in this study, and obtained the patient's free will to consent to the document after sufficient understanding.

Exclusion criteria

Exclusion criteria: 1) Patients with severe iliac deformity due to pelvic fracture, pelvic surgery, etc. 2) Women who are pregnant or may become pregnant 3) Lactating women 4) Patients who are judged by the principal investigator and the research coordinator to be inappropriate as research subjects

Design outcomes

Primary

MeasureTime frame
Measurement of cup angle (inclination and anteversion) to evaluate acetabular component accuracy in total hip arthroplasty.

Secondary

MeasureTime frame
Complications, Surgery time, Bleeding, Clinical evaluation score

Contacts

Public ContactTomonori Tetsunaga

Okayama University Hospital

tomonori_t31@yahoo.co.jp+81-86-235-7273

Outcome results

None listed

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