NIPH Clinical Trials Search

UMIN ID: UMIN000005316

Registered date:25/03/2011

A Clinical Study on the Dislocation and Wear of Highly Crosslinked Polyethylene Liner

Basic Information

Recruitment status Complete: follow-up complete
Health condition(s) or Problem(s) studiedOsteoarthritis of the Hip, Avascular Necrosis of the Femoral Head
Date of first enrollment2002/04/01
Target sample size240
Countries of recruitmentJapan
Study typeObservational


Primary OutcomeThe mean annual wear of the polyethylene liner and the incidences of dislocation
Secondary OutcomeX-ray findings, Harris Hip Score, JOA Score and QOL

Key inclusion & exclusion criteria

Age minimumNot applicable
Age maximum75years-old
GenderMale and Female
Include criteria
Exclude criteria- Patients with osteomyelitis of the upper femoral bone - Patients with active infection at the affected joint - Patients with extremely insufficient bone mass - Patients who have already undergone hip replacement arthroplasty - Patients with the socket outer diameter of less than 48 mm - Other patients who are judged to be ineligible to participate in the study by the surgeon

Related Information


public contact
Name Akira Kashima
Address 15F, Sumitomo Fudosan Shibakoen Tower, 2-11-1 Shibakoen, Minato-ku, Tokyo Japan
Telephone 03-6402-6600
Affiliation Zimmer Biomet G.K. Clinical Affairs
scientific contact
Name Masanobu Saito
Address 2-1 Kidohigashi-machi, Kawachi nagano, Osaka Japan
Telephone 0721-53-7010
Affiliation National Hospital Organization Osaka Minami Medical Center Orthopedic Surgery