NIPH Clinical Trials Search

UMIN ID: UMIN000006013

Registered date:31/07/2011

Clinical study on wear resistance of highly cross-linked polyethylene (Longevity)

Basic Information

Recruitment status Complete: follow-up complete
Health condition(s) or Problem(s) studiedOsteoarthritis of the hip
Date of first enrollment2010/04/01
Target sample size200
Countries of recruitmentJapan
Study typeObservational


Primary OutcomeTo compare the wear resistance of the polyethylene liner
Secondary OutcomeJOA score, SF-12

Key inclusion & exclusion criteria

Age minimumNot applicable
Age maximum70years-old
GenderMale and Female
Include criteria
Exclude criteriaPatients who did not violate any of the following exclusion criteria at the time of total hip arthroplasty: -Patients with a history of infection at the affected joint -Patients with immature skeleton -Patients with a history of total hip arthroplasty at the affected joint (cases of revision) -Patients with a history of alcohol or drug addiction, for whom poor compliance is expected

Related Information


public contact
Address 1-17, Prime place, Toranomon 4-chome Minato-ku, Tokyo, Japan Japan
Telephone 03-6402-6752
Affiliation Zimmer K.K Clinical Affairs
scientific contact
Name Naohiko Mashima
Address Shizukawa, Toon, Ehime Japan Japan
Telephone 089-960-5343
Affiliation Ehime University Graduate School of Medicine Department of Bone and Joint Surgery