A Comparison of Large Diameter Metal Heads vs. Small Diameter Metal Heads vs. Dual Mobility Total Hip Replacements

Overview

About this study

Does having a large diameter metal on polyethylene total hip replacement increase metal ion release? Larger metal heads are thought to have increased torsional forces on the trunion which would like release more metal ions. Increased metal ion levels have been associated with adverse local tissue reactions. Are there any differences comparing these groups to a dual mobility type total hip replacement.

Participation eligibility

Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. There is no guarantee that every individual who qualifies and wants to participate in a trial will be enrolled. Contact the study team to discuss study eligibility and potential participation.

Inclusion Criteria:

One total hip replacement, either a large metal head (>40) or a small metal head (<30) on a polyethylene bearing surface.
2 to 5 years s/p surgery minimum. No symptoms

Exclusion Criteria:

Any other bearing surface besides metal on poly, no other joint replacements, symptomatic

Participating Mayo Clinic locations

Study statuses change often. Please contact the study team for the most up-to-date information regarding possible participation.

Mayo Clinic Location	Status
Rochester, Minn. Mayo Clinic principal investigator Robert Trousdale, M.D.	Closed for enrollment

Mayo Clinic Location

Status

Rochester, Minn.

Mayo Clinic principal investigator

Robert Trousdale, M.D.

Closed for enrollment

More information

Publications

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