Accelerometer-Based Navigation Versus Conventional Alignment Guide for Acetabular Component Placement in Total Hip Arthroplasty: A Randomized, Controlled Trial: Comparisons of computed tomographic outcomes and liner-to-neck clearances during weight-bearing activities

Accelerometer-Based Navigation Versus Conventional Alignment Guide for Acetabular Component Placement in Total Hip Arthroplasty: A Randomized, Controlled Trial: Comparisons of computed tomographic outcomes and liner-to-neck clearances during weight-bearing activities - Evaluation of three-dimensional kinematics after primary THA: comparison of accelerometer-based portable navigation system and conventional technique

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000031726

Enrollment

Registered

2018-03-14

Start date

2017-12-01

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

Secondary osteoarthritis caused by hip dysplasia or osteonecrosis of the femoral head

Interventions

Total hip arthroplasty using conventional alignment guide Total hip arthroplasty using accelerometer-based portable navigation system

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1) Primary total hip arthroplasty 2) Age: 20- years old 3) Male and Female 4) Patients with the ability of consent and writing 5) Patients who can visit hospital as scheduled during the research period

Exclusion criteria

Exclusion criteria: 1) Patients with immature bone structure 2) Patients with the loss of abduction muscle in affected leg 3) Patients with insufficient bone mineral density (e.g. Corticosteroid-induced metabolic bone disease) 4) Patients with insufficient skin covering around the hip joint 5) Patients with neuromuscular disease (e.g. Charcot disease) in affected leg 6) Patients with the infection (e.g. osteomyelitis in proximal femur or purulent infection in the hip joint) 7) Patients with stovepipe-like femur 8) Patients with radiation osteonecrosis of acetabulum 9) Patients with systemic or local infection 10) Patients with vascular interruption in affected leg 11) Patients without the ability of walking at the postoperative time 12) Suspicious patients with metal allergy 13) Pregnant patients, pregnant suspicious patients, or patients who hope for pregnancy 14) Patients with the disease which can affect consent or evaluation of the study, including dementia, schizophrenia, depression, panic disorder, or generalized anxiety disorder 15) Patients who need to undergo the lower extremity surgery within six months after participating in the study, including total hip arthroplasty and total knee arthroplasty 16) Patients who underwent the lower extremity surgery within six months before participating in the study, including total hip arthroplasty, total knee arthroplasty, or osteotomy 17) Patients who doctors judged unsuitable for the study

Design outcomes

Primary

Measure	Time frame
To evaluate with the validated image matching technique whether the accelerometer-based navigation device (HipAlign system, Zimmer Biomet, Warsaw, IN, USA) provides significantly larger distances between the acetabular liner and the stem neck (liner-to-neck clearance) during daily activities compared to conventional alignment guide.	—

Secondary

Measure	Time frame
To evaluate with CT images whether the accelerometer-based navigation device (HipAlign system, Zimmer Biomet, Warsaw, IN, USA) provides significantly higher precisions in the acetabular cup alignment compared to conventional alignment guide.	—

Countries

Japan

Contacts

Public ContactSatoshi Hamai

Graduate School of Medical Sciences, Kyushu University Department of Orthopaedic Surgery

hamachan@ortho.med.kyushu-u.ac.jp092-642-5488

Outcome results

None listed

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