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Oxford Partial Knee Comparative Instrument Pilot Study

This study has been completed.
Sponsor:
ClinicalTrials.gov Identifier:
NCT01410786
First Posted: August 5, 2011
Last Update Posted: August 2, 2017
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by (Responsible Party):
Zimmer Biomet
July 14, 2011
August 5, 2011
August 2, 2017
June 2013
May 2015   (Final data collection date for primary outcome measure)
Oxford Knee Score [ Time Frame: Two Years ]
The Oxford Knee Score is a patient administered questionnaire about how they are functioning and feel about their knee.
Same as current
Complete list of historical versions of study NCT01410786 on ClinicalTrials.gov Archive Site
Average Operative Time [ Time Frame: 1 Year ]
From incision to incision closure.
Same as current
Not Provided
Not Provided
 
Oxford Partial Knee Comparative Instrument Pilot Study
A Comparison of Signature Guides and Conventional Instrumentation With the Oxford Partial Knee System Pilot Study
The purpose of this prospective clinical data-collection is to document the performance and clinical outcomes of the Oxford Partial Knee System using Signature Custom Guides and Conventional Instrumentation.

The purpose of this prospective clinical data-collection is to document the performance and clinical outcomes of the Oxford Partial Knee System using Signature Custom Guides and Conventional Instrumentation.

The FDA has approved the Oxford Partial Knee via Premarket Approval P010014. Also, by being CE marked, the Oxford Partial Knee also conforms to the essential requirements of EC Directive 93/42/EEC; in accordance to 13485:2003. The data gathered will be collated and used to provide feedback to design engineers, support marketing efforts, answer potential questions from reimbursement agencies, and will serve as a part of Biomet's Post Market Surveillance System.

Surgical techniques and patient care are to be standard for the surgeon participating in the protocol for both treatment groups and should be maintained the same throughout the course of the data-collection. There will be no experimental or investigational devices used. There will be no experimental or investigational surgical techniques used. The devices and products will be used in accordance with their instructions for use and/or approved labeling. Any use of the device or collection of clinical data outside of the United States should comply with all local, state, and/or national and international regulations.

Interventional
Not Provided
Allocation: Non-Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Basic Science
Osteoarthritis, Knee
  • Procedure: Conventional Instrumentation
    Standard Oxford surgical instruments
  • Procedure: Signature Custom Guides
    Signature Custom Guides used with Instruments in surgical technique
  • Active Comparator: Conventional Oxford instrumentation
    Patients who receive an Oxford Partial Knee with Conventional instrumentation.
    Intervention: Procedure: Conventional Instrumentation
  • Experimental: Signature Guides Oxford
    Patients who receive an Oxford Partial Knee with Signature Custom Guides
    Intervention: Procedure: Signature Custom Guides

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Completed
35
December 2015
May 2015   (Final data collection date for primary outcome measure)

Inclusion Criteria:

Outside the United States:

-The Oxford Partial Knee System is intended for use in individuals with osteoarthritis or avascular necrosis limited to the medial compartment of the knee and is intended to be implanted with bone cement (in the United States). Use of cementless femoral fixation is permitted outside of the United States only (if it complies with all local, state, and/or national and international regulations), however the same technique must be used consistently throughout the course of the study (cemented or cementless).

Exclusion Criteria:

  • The exclusion criteria will include the same contraindications stated in the FDA approved labeling for the device (approved in PMA P010014). These contraindications include:
  • Infection, sepsis, and osteomyelitis
  • Use in the lateral compartment of the knee
  • Rheumatoid arthritis or other forms of inflammatory joint disease
  • Revision of a failed prosthesis, failed upper tibial osteotomy or post-traumatic arthritis after tibial plateau fracture
  • Insufficiency of the collateral, anterior, or posterior cruciate ligaments which would preclude stability of the device
  • Disease or damage to the lateral compartment of the knee
  • Uncooperative patient or patient with neurologic disorders who is incapable of following directions
  • Osteoporosis
  • Metabolic disorders which may impair bone formation
  • Osteomalacia
  • Distant foci of infections which may spread to the implant site
  • Rapid joint destruction, marked bone loss, or bone resorption apparent on roentgenogram
  • Vascular insufficiency, muscular atrophy, neuromuscular disease
  • Incomplete or deficient soft tissue surrounding the knee
  • Charcot's disease
  • A fixed varus deformity (not passively correctable) of greater than 15 degrees
  • A flexion deformity greater than 15 degrees
Sexes Eligible for Study: All
18 Years and older   (Adult, Senior)
No
Contact information is only displayed when the study is recruiting subjects
New Zealand
 
 
NCT01410786
ORTHO.CR.GK1 (407)
No
Not Provided
Plan to Share IPD: No
Zimmer Biomet
Zimmer Biomet
Not Provided
Principal Investigator: Rod Maxwell Canterbury Orthopaedic Services
Zimmer Biomet
August 2017

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP