A study to evaluate the harmful effects of metal ions on eyesight in patients with an ASR total hip replacement.

Not Applicable

• Conditions: Visual acuity and correlation with metal ion levels (Co/Cr) in patients with metal on metal ASR total hip replacements.; Eye - Diseases / disorders of the eye; Musculoskeletal - Other muscular and skeletal disorders

• Registration Number: ACTRN12612000589886
• Lead Sponsor: A/Prof Riaz Khan

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Study Start: 2012-06-01
• Last Update Posted: 13 January 2020

Recruitment & Eligibility

• Status: ot yet recruiting
• Sex: All
• Target Recruitment: 80

Inclusion Criteria

Patients recruited will have undergone an ASR total hip replacement or an ASR hip resurfacing.
For the control group patients will have undergone a total hip replacement with a non metal on metal bearing surface (i.e. metal on polyethylene)

Exclusion Criteria

Not relevant

Study & Design

• Study Type: Observational
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
We aim to look at visual acuity by carrying out electrophysiological assessment and correlate these results to serum metal ion levels in order to identify whether serum metal ion levels have any deleterious effect on visual acuity.[Patients will be assessed at the point of recruitment and metal ions measured and electrophysiological assessment carried out. This is the only point of assessment on this study as it is beyond the remit of this study to carry out long term follow-up.]

Secondary Outcome Measures

Name	Time	Method
il[Nil]