In Total Hip Replacement, do ceramic-ceramic or highly-cross-linked plastic bearing surfaces have less migration and wear at 12 years?

Status

Withdrawn

Phases

Unknown

Study type

Interventional

Source

ANZCTR

Registry ID

ACTRN12615000877583

Enrollment

Registered

2015-08-21

Start date

2015-09-01

Completion date

Unknown

Last updated

2020-01-13

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

Conditions

None listed

Brief summary

We propose to follow up 61 participants from a previous randomized controlled trial conducted in 2001-2002 at SCGH and Hollywood Private Hospital, which randomized participants for total hip replacement to either a ceramic-ceramic or metal-highly-crosslinked-plastic bearing surface. The 12-year outcomes, in terms of radiographically measured wear rate and implant migration, and clinical findings will be determined and presented for each group.

Interventions

The Reflection 1 or 5 cup (Smith and Nephew) with a porous coating and a cemented Spectron stem (Smith and Nephew) were used in a previous trial. Ceramic-ceramic group received a liner and head of aluminium oxide ceramic. Zhou Z-K, Li MG, Borlin N, Wood DJ, Nivbrant B. No increased migration in cups with ceramic-on-ceramic bearing: An RSA study. Clin Orthop Relat Res. 2006; 448: 39-45.

Study design

Allocation

Randomised controlled trial

Intervention model

Parallel

Primary purpose

Treatment

Masking

Open (masking not used)

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Healthy volunteers

Inclusion criteria

Follow-up study. Invite to participants of a previous RCT. This study had inclusion of primary total hip replacement for osteoarthritis. Participants were recruited from the waitlist of 2 senior orthopaedic surgeons.

Exclusion criteria

Unable to provide informed consent Unable to participate travel for radiological assessment Deceased

Outcome results