Comparison of wear resistance,clinical result and radiological course between the cross-linked polyethylene-oxidized zirconium bearing couple and the cross-linked polyethylene-almina ceramic bearing couple in primary total hip arthroplasty. -A randomized controlled trial-

Comparison of wear resistance,clinical result and radiological course between the cross-linked polyethylene-oxidized zirconium bearing couple and the cross-linked polyethylene-almina ceramic bearing couple in primary total hip arthroplasty. -A randomized controlled trial- - Comparison of wear resistance between oxidized zirconium and almina ceramic.

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000006772

Enrollment

100

Registered

2011-11-25

Start date

2011-11-01

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

Coxarthrosis

Interventions

Oxinium femoral head 12/14 Ceramic ball head (almina ceramic)

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1)The patient indicated total hip arthroplasty owing to osteoarthritis of the hip joint secondary to developmental dysplasia of the hip joint. 2)The patient 75 aged or under. 3)The patient who can be inplanted 28mm diameter of the femoral head. 4)The patient whose UCLA score is 3 or more.

Exclusion criteria

Exclusion criteria: 1)The patient indicated revision (total or partial) hip arthroplasty. 2)The patient who need the all polyethylene cup implantation. 3)The patient recognized not suitable for this study.

Design outcomes

Primary

Measure	Time frame
Linear wear of the polyethylene liner(Dual circle technique)	—

Secondary

Measure	Time frame
Radiological course (wear,osteolysis,loosening) Complication,adverse effect Clinical result (Harris Hip Score,UCLA Score)	—

Countries

Japan

Contacts

Public ContactSatoshi Takayanagi

Shonan Kamakura Joint Reconstruction Center Department of Orthopaedic Surgery

mail@skjrc.jp0467-47-2377

Outcome results

None listed

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