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Accuracy and practicability of 3D printed patient specific instrument in total hip arthroplasty for adult DDH

A randomized controlled trial of accuracy and practicability of 3D printed patient specific instrument in acetabular surgery of total hip arthroplasty for adult DDH

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR1900024076
Enrollment
Unknown
Registered
2019-06-24
Start date
2017-01-01
Completion date
Unknown
Last updated
2019-12-16

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

Conditions

developmental dysplasiaof the hip

Interventions

Group 1:THA through the traditional posterolateral approach
Group 2:3D printed patient specific instrument assisted THA in the posterolateral approach

Sponsors

Department of Orthopedics, Xiangya Hospital, Central South University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 85 Years

Inclusion criteria

Inclusion criteria: 1. Diagnosed as DDH; 2. The first time THA; 3. Aged 18-85 years; 4. No other surgery was performed on the ipsilateral hip joint; 5. One-side operation.

Exclusion criteria

Exclusion criteria: 1. Refuse to participate; 2. Other severe osteoarthritis, other serious systemic diseases; 3. The pregnancy; 4. Unable to complete regular follow-up; 5. Patients whose other side of hip was dysfunctional or need bilateral surgery; 6. Mental disability; 7. Other.

Design outcomes

Primary

MeasureTime frame
Harris score;Ideal anteversion of cup designed preoperatively;Ideal inclination of cup designed preoperatively;Ideal percentage of acetabulum covering cup (PACC) designed preoperatively;Ideal center of rotation (COR) designed preoperatively;Surgical time of each step;Intraoperative blood loss;A record of specific surgical steps;Total surgical time;A record of surgical complications;anteversion of cup;inclination of cup;percentage of acetabulum covering cup (PACC);center of rotation (COR);Harris score;Harris score;Harris score;Harris score;Harris score;—

Countries

China

Contacts

Public ContactDa Zhong

Xiangya Hospital, Central South University

dr_zhongda@126.com+86 13549646442

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026