NCT03622398

Brief Summary

The aim of this study was to determine clinical and radiographic results after posterior cruciate-substituting total knee arthroplasties with highly cross-linked polyethylene in one knee and compression mold conventional polyethylene in the contralateral knee in the same patients.

Trial Health

100
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
125

participants targeted

Target at P50-P75 for phase_4

Timeline
Completed

Started Jan 2006

Longer than P75 for phase_4

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 1, 2006

Completed
2.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2008

Completed
9.7 years until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2018

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

July 29, 2018

Completed
11 days until next milestone

First Posted

Study publicly available on registry

August 9, 2018

Completed
Last Updated

July 23, 2019

Status Verified

July 1, 2019

Enrollment Period

2.8 years

First QC Date

July 29, 2018

Last Update Submit

July 21, 2019

Conditions

Keywords

total knee arthroplastyhighly cross-linked polyethylene

Outcome Measures

Primary Outcomes (1)

  • Knee society knee score

    a proven score for the measurement of knee function, the score ranges from 0 to 100, 100 being the best possible score, indicating normal knee function

    minimum 10 year follow up after the index surgery

Secondary Outcomes (2)

  • WOMAC(Western Ontario and McMaster Universities) Scores

    minimum 10 year follow up after the index surgery

  • Range of motion

    minimum 10 year follow up after the index surgery

Study Arms (2)

HXLPE

EXPERIMENTAL

This side of knee implanted with HXLPE(highly crosslinked polyethylene) liner while undergoing total knee arthroplasty. This group will receive the intervention, "Total knee arthroplasty with HXLPE liner".

Procedure: Total knee arthroplasty with HXLPE liner

Conventional

ACTIVE COMPARATOR

This side of knee implanted with conventional polyethylene while undergoing standard total knee arthroplasty. This group will receive the intervention, "Total knee arthroplasty with conventional polyethylene liner".

Procedure: Total knee arthroplasty with conventional polyethylene liner

Interventions

Replacing arthritic knee with a metal device, and using a highly cross-linked polyethylene(HXLPE) liner in between metallic surfaces.

HXLPE

Replacing arthritic knee with a metal device, and using a conventional polyethylene liner in between metallic surfaces.

Conventional

Eligibility Criteria

Age20 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Younger than 65 years old
  • with end stage knee arthritis bad enough for knee replacement

You may not qualify if:

  • inflammatory arthritis
  • combined foot and ankle disorders.
  • dementia
  • patient older than 65 years old.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (5)

  • Kim YH, Oh JH, Oh SH. Osteolysis around cementless porous-coated anatomic knee prostheses. J Bone Joint Surg Br. 1995 Mar;77(2):236-41.

    PMID: 7706337BACKGROUND
  • Mikulak SA, Mahoney OM, dela Rosa MA, Schmalzried TP. Loosening and osteolysis with the press-fit condylar posterior-cruciate-substituting total knee replacement. J Bone Joint Surg Am. 2001 Mar;83(3):398-403. doi: 10.2106/00004623-200103000-00012.

    PMID: 11263644BACKGROUND
  • Rodriguez JA, Bhende H, Ranawat CS. Total condylar knee replacement: a 20-year followup study. Clin Orthop Relat Res. 2001 Jul;(388):10-7.

    PMID: 11451106BACKGROUND
  • Hodrick JT, Severson EP, McAlister DS, Dahl B, Hofmann AA. Highly crosslinked polyethylene is safe for use in total knee arthroplasty. Clin Orthop Relat Res. 2008 Nov;466(11):2806-12. doi: 10.1007/s11999-008-0472-4. Epub 2008 Sep 10.

    PMID: 18781371BACKGROUND
  • Long WJ, Levi GS, Scuderi GR. Highly cross-linked polyethylene in posterior stabilized total knee arthroplasty: early results. Orthop Clin North Am. 2012 Nov;43(5):e35-8. doi: 10.1016/j.ocl.2012.07.005. Epub 2012 Sep 27.

    PMID: 23102419BACKGROUND

MeSH Terms

Interventions

Arthroplasty, Replacement, Knee

Intervention Hierarchy (Ancestors)

Arthroplasty, ReplacementArthroplastyOrthopedic ProceduresSurgical Procedures, OperativePlastic Surgery ProceduresProsthesis Implantation

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Total knee arthroplasty is performed on patients with knee osteoarthritis. One group will receive a highly cross-linked polyethylene liner and one group will receive a conventional polyethylene liner. Other parts of procedures will be the same.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

July 29, 2018

First Posted

August 9, 2018

Study Start

January 1, 2006

Primary Completion

October 1, 2008

Study Completion

June 1, 2018

Last Updated

July 23, 2019

Record last verified: 2019-07

Data Sharing

IPD Sharing
Will not share