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Comparative long-term follow-up study of primary total hip arthroplasty with different bearings: metal ion levels and leukocyte profiles

Comparative long-term follow-up study of primary total hip arthroplasty with different bearings: metal ion levels and leukocyte profiles

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2000033005
Enrollment
Unknown
Registered
2020-05-17
Start date
2020-05-18
Completion date
Unknown
Last updated
2020-05-18

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

Conditions

end stage hip disease

Interventions

metal-on-metal bearings group:patients received total hip arthroplasty by using metal-on-metal bearings
metal-on-polyethylene bearings group:patients received total hip arthroplasty by using metal-on-polyethylene bearings
metal-on-ceramic bearings group:patients received total hip arthroplasty by using metal-on-ceramic bearings
ceramic-on-metal bearings group:patients received total hip arthroplasty by using ceramic-on-metal bearings
ceramic-on-ceramic group:patients received total hip arthroplasty by using ceramic-on-ceramic bearings
ceramic-on-polyethylene group:patients received total hip arthroplasty by using ceramic-on-polyethylene bearings

Sponsors

Department of Orthopedics, West China Hospital, Sichuan University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 80 Years

Inclusion criteria

Inclusion criteria: 1. patients who underwent total hip arthroplasty more than 10 years ago; 2. patients underwent total hip arthroplasty with one of the 6 bearings (Pinnacle, DePuy, J&J).

Exclusion criteria

Exclusion criteria: 1. patients who underwent total hip arthroplasty with less than 10 years; 2. patients who underwent total hip arthroplasty with non-Pinnacle implants.

Design outcomes

Primary

MeasureTime frame
Harris hip function score;radiology findings;metal ion levels;lymphocyte proliferation rate;

Secondary

MeasureTime frame
hip range of motion;WOMAC score;SF-12 score;

Countries

China

Contacts

Public ContactShen Bin

West China Hospital, Sichuan University

zengyigd@126.com+86 18980601390

Outcome results

None listed

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