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Range of Motion of Standard and High-Flexion Posterior Cruciate Retaining Total Knee Prostheses

This study has been completed.
Sponsor:
ClinicalTrials.gov Identifier:
NCT00837447
First Posted: February 5, 2009
Last Update Posted: April 10, 2013
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):
Young Hoo Kim, Ewha Womans University
  Purpose
The purpose of this prospective, randomized study was to compare pain, functional outcome and ranges of motion of the knees in patients receiving either a standard posterior cruciate-retaining or a high-flexion posterior cruciate-retaining total knee prosthesis.

Condition Intervention Phase
Osteoarthritis Device: Total knee replacement with NexGen CR knee prosthesis Device: Total knee replacement(TKR) with Nexgen CR-flex Phase 4

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double (Participant, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Range of Motion of Standard and High-Flexion Posterior Cruciate Retaining Total Knee Prostheses A Prospective, Randomized Study

Further study details as provided by Young Hoo Kim, Ewha Womans University:

Primary Outcome Measures:
  • Change in Knee Society Knee Score [ Time Frame: baseline and 3 years ]

    change in knee score will be compared with baseline and follow up of 3 years. The knee society knee score range from 0 to 100 points, 100 being the best possible outcome.

    Baseline-NexGen (CR) knee socre:29 points Baseline-NexGen (CR-Flex) knee socre:29 points Follow up of 3 years-NexGen (CR) knee socre: 93.7 points Follow up of 3 years-NexGen (CR-Flex) knee socre: 93.9 points



Enrollment: 54
Study Start Date: October 2004
Study Completion Date: March 2008
Primary Completion Date: March 2008 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: NexGen CR knee prosthesis
side of knee operated with total knee replacement with Nexgen CR prosthesis
Device: Total knee replacement with NexGen CR knee prosthesis
comparison of functional outcome in patients receiving either NexGen posterior cruciate-retaining or a high-flexion posterior cruciate-retaining total knee prosthesis
Other Name: NexGen CR
Active Comparator: NexGen CR-Flex knee prosthesis
side of knee operated with total knee arthroplasty using Nexgen CR-flex prosthesis
Device: Total knee replacement(TKR) with Nexgen CR-flex
TKR using Nexgen CR-flex implant
Other Name: Nexgen CR-flex

Detailed Description:
The main goals of total knee arthroplasty are pain relief and improvement of function and range of motion. The purpose of this study was to compare ranges of motion of the knees in patients receiving either a standard posterior crucaite-retaining or a high-flexion posterior cruciate-retaining total knee prosthesis.
  Eligibility

Information from the National Library of Medicine

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Ages Eligible for Study:   Child, Adult, Senior
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • osteoarthritis that was severe enough to warrant total knee arthroplasty after an adequate trial of nonoperative therapy, and the need for bilateral total knee arthroplasties

Exclusion Criteria:

  • inflammatory arthritis
  • osteoarthritis of the hip causing pain or restricted mobility
  • a foot or ankle disorder which limited walking
  • dementia or a neurological disorder including a past history of stroke which affected mobility
  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00837447


Sponsors and Collaborators
Ewha Womans University
Investigators
Study Director: Young-Hoo Kim, MD Ewha Womans University Mokdong Hospital
  More Information

Responsible Party: Young Hoo Kim, Professor and Director, Ewha Womans University
ClinicalTrials.gov Identifier: NCT00837447     History of Changes
Other Study ID Numbers: 2007-7
First Submitted: February 4, 2009
First Posted: February 5, 2009
Results First Submitted: June 23, 2011
Results First Posted: April 10, 2013
Last Update Posted: April 10, 2013
Last Verified: March 2013

Additional relevant MeSH terms:
Osteoarthritis
Arthritis
Joint Diseases
Musculoskeletal Diseases
Rheumatic Diseases