The accuracy of the cup positioning in total hip arthroplasty with the patient specific guide made by 3D planning software on CT based images

Intervention study for the accuracy of the cup positioning in total hip arthroplasty with the patient specific guide made by Zed HIP 3D planning software on CT based images - Intervention study for the accuracy of the cup positioning with the patient specific guide

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000041847

Enrollment

Registered

2020-10-01

Start date

2020-10-01

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 hip

Interventions

the accuracy of the cup positioning in total hip arthroplasty (THA) with the patient specific guide made by Zed HIP 3D planning software on CT based images (40 hips) the accuracy of the cup positionin

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. secondary osteoarthritis due to femoral neck fracture, developmental dysplasia of the hip, rheumatoid arthritis and osteonecrosis of the femoral head 2. primary THA 3. in case of patients more than 20 years old 4. in case of patients who can voluntarily signed the agreement form 5. in case of patients who can continually receive a medical examination

Exclusion criteria

Exclusion criteria: 1. In case of patients with a high risk of developing bacterial and fungal infections 2. In case of patients without the thickness of a bone sufficient for placing the implant 3. In case of patients with excessive deformation of the femoral bone 4. In case of patients who is suffering from dementia and cannot be evaluated by questionnaire. 5. In case of patients who is or may be pregnant

Design outcomes

Primary

Measure	Time frame
The postoperative insertion angles of the cups	—

Secondary

Measure	Time frame
Dislocation rate	—

Countries

Japan

Contacts

Public ContactHiroshi Imai

Ehime University Graduate School of Medicine Department of Bone and Joint Surgery

hiroimai@m.ehime-u.ac.jp0899605343

Outcome results

None listed

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