Long-term Study of the DePuy Low Contact Stress (LCS) Complete Total Knee System

Phase 4

Completed

• Conditions: Arthroplasty, Replacement, Knee
• Interventions: Device: L.C.S. Complete Knee (DePuy Low Contact Stress Complete Knee System)

• Registration Number: NCT00733915
• Lead Sponsor: DePuy International

Brief Summary

The main objective of this study is to evaluate how the LCS Complete mobile-bearing total knee system and surgical instrumentation performs.

Detailed Description

The secondary objective of this investigation is to evaluate the long-term survivorship and performance of the LCS Complete mobile-bearing total knee system and surgical instrumentation using the American Knee Society Score (AKS) the Oxford Knee Score (OKS), SF-12 and survivorship analysis.

Study Timeline

• Study Start: 2002-03-01
• Primary Completion: 2007-09-01
• Study First Submitted: 2008-08-11
• Study First Submitted QC: 2008-08-12
• Study First Posted: 2008-08-13
• Study Completion: 2014-10-01
• Status Verified: 2025-03
• Last Update Submitted: 2025-03-28
• Last Update Posted: 2025-03-30

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 241

Inclusion Criteria

• Male or female subjects.
• Subjects who are able to give voluntary, written informed consent to participate in this investigation and from whom consent has been obtained
• 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.
• Subjects who present with idiopathic osteoarthritis, rheumatoid arthritis, post traumatic arthritis or any other pathology that in the opinion of the clinical investigator requires a primary total knee arthroplasty and who are considered suitable for treatment with a mobile bearing knee system (LCS Complete).
• Subjects who in the opinion of the Clinical Investigator are considered to be suitable for treatment with the investigation device, according to the indications specified in the package insert leaflet.

Exclusion Criteria

• Subjects who, in the opinion of the Investigator, have an existing condition that would compromise their participation and follow-up in this study.
• Subjects with a known history of poor compliance to medical treatment.
• Women who are pregnant.
• Subjects who are known drug or alcohol abusers or with psychological disorders that could effect follow-up care or treatment outcomes.
• Subjects involved in Medical-Legal claims.
• Subjects who have participated in a clinical study with an investigational product in the last month.
• Subjects who are currently involved in any injury litigation claims.
• Revision of an existing knee implant.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
Single arm	L.C.S. Complete Knee (DePuy Low Contact Stress Complete Knee System)	Cohort of total knee replacements with LCS Complete knee implants

Primary Outcome Measures

Name	Time	Method
To demonstrate the surgical performance of the LCS Complete mobile-bearing total knee system and instrumentation using radiographic and intra-operative assessment	10 years

Secondary Outcome Measures

Name	Time	Method
To demonstrate the survivorship and performance of the LCS Complete mobile-bearing total knee system using the American Knee Society clinical and radiographic assessment, Oxford Knee Score, SF12 and survivorship analysis.	Pre surgery, surgery, 3 month, 1, 3, 5 and 10 years

Trial Locations

Locations (1)

Musgrave Park Hospital; 🇮🇪 Belfast, Ireland