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A Two Centre Study to Assess the Stability and Long-term Performance of the C-Stem™ AMT in a Total Primary Hip Replacement

Prospective, Uncontrolled, Two-centre, RSA, Post-market Surveillance Study to Evaluate the Stability of the C-Stem™ AMT Femoral Component in Primary Total Hip Arthroplasty.

Status
Terminated
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00872573
Enrollment
5
Registered
2009-03-31
Start date
2006-07-01
Completion date
2007-10-01
Last updated
2017-06-26

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

Conditions

Avascular Necrosis, Collagen Disorders, Congenital Hip Dysplasia, Nonunion of Femoral Fractures, Osteoarthritis, Post-traumatic Arthritis, Rheumatoid Arthritis, Slipped Capital Femoral Epiphysis, Traumatic Femoral Fractures

Keywords

Hip, Cemented

Brief summary

The purpose of this study is to monitor the stability of the C-Stem™ AMT hip within the thigh bone when used in the treatment of patients with hip joint disease requiring a total hip replacement. Patients who enter the study will be evaluated at regular intervals following hip surgery using patient, clinical, standard x-ray assessments and special x-rays which allow the stability of the implant to be determined.

Interventions

DEVICEC-Stem™ AMT Femoral Component (standard and high off-set variants)

A polished triple tapered cemented femoral component for use in total hip replacement

Sponsors

DePuy International
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
60 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

i) Male or female subjects, aged between 60 and 80 years inclusive. ii) Subjects who are able to give voluntary, written informed consent to participate in this investigation and from whom consent has been obtained. iii) Subjects who, in the opinion of the Investigator, are able to understand this investigation, co-operate with the investigational procedures and are willing to return to the hospital for all the required post-operative follow-ups. iv) Subjects undergoing primary total hip replacement that are considered suitable for a cemented femoral stem and metal femoral head and an all polyethylene acetabular cup.

Exclusion criteria

i) Subjects who, in the opinion of the Investigator, have an existing condition that would compromise their participation and follow-up in this study. ii) Subjects undergoing revision hip replacement iii) Subjects undergoing simultaneous bilateral hip replacements. iv) Subjects with a contralateral hip replacement, which was implanted less than six months previously or is not performing satisfactorily. v) Women who are pregnant. vi) Subjects who are known drug or alcohol abusers or with psychological disorders that could affect follow-up care or treatment outcomes. vii) Subjects who have participated in a clinical study with an investigational product in the last 12 months. viii) Subjects who are currently involved in any injury litigation claims.

Design outcomes

Primary

MeasureTime frame
Distal migration of the femoral stem at the 5-year time point5 years

Secondary

MeasureTime frame
ML/AP translation and all rotations out to 5 yearspre-discharge, 3mths, 6mths, 1yr, 18mths, 2yrs, 3yrs and 5yrs post-surgery
Harris Hip score3mths, 1yr, 2yrs, 5yrs and 10yrs post-surgery
Oxford Hip score3mths, 1yr, 2yrs, 5yrs and 10yrs post-surgery
Radiological analysis3mths, 1yr, 2yrs, 5yrs and 10yrs post-surgery

Countries

United Kingdom

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026