NCT01473199

Brief Summary

Information will be collected on the pre-op and post-op clinical status of patients with focal cartilage defects of the femoral condyles treated with the BioPoly RS Partial Resurfacing Knee Implant, a permanent orthopaedic implant. The overall aim of the study is to increase the knowledge of patient outcomes such as pain, knee function, level of activity, and overall quality of life after treatment with the device.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
38

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Nov 2011

Longer than P75 for not_applicable

Geographic Reach
1 country

5 active sites

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

November 1, 2011

Completed
9 days until next milestone

First Submitted

Initial submission to the registry

November 10, 2011

Completed
7 days until next milestone

First Posted

Study publicly available on registry

November 17, 2011

Completed
5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2016

Completed
5 years until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2021

Completed
Last Updated

February 1, 2022

Status Verified

January 1, 2022

Enrollment Period

5.1 years

First QC Date

November 10, 2011

Last Update Submit

January 17, 2022

Conditions

Keywords

focal defectfocal lesionchondral lesionosteochondral lesion

Outcome Measures

Primary Outcomes (2)

  • Knee Injury and Osteoarthritis Outcome Score (KOOS)

    Knee function assessment

    6 months

  • Knee Injury and Osteoarthritis Outcome Score (KOOS)

    Knee function assessment

    2 years

Secondary Outcomes (4)

  • Knee Injury and Osteoarthritis Outcome Score (KOOS)

    Through 5 years

  • VAS Pain

    Through 5 years

  • Tegner Activity

    Through 5 years

  • SF-36

    Through 5 years

Study Arms (1)

BioPoly RS Implant

EXPERIMENTAL

BioPoly RS Implant

Device: BioPoly RS Partial Resurfacing Knee Implant

Interventions

A long term, surgically invasive device for replacement of focal osteochondral defects in the weight bearing region of the femoral condyles.

BioPoly RS Implant

Eligibility Criteria

Age21 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Cartilage lesion located in weight bearing region of medial or lateral femoral condyles that have failed prior therapy (conservative or surgical)
  • Lesion classified as ICRS Grade 2, 3, or 4

You may not qualify if:

  • Body mass index (BMI) of 30 or more
  • Osteoarthritis or rheumatoid arthritis
  • Gout
  • Uncorrected mal-alignment, ligamentous instability, or meniscal tear
  • Total meniscectomy
  • Kissing lesion on tibia

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (5)

Chester Knee Clinic, Nuffield Health The Grosvenor Hospital Chester

Chester, England, CH4 7QP, United Kingdom

Location

Aintree University Hospital

Liverpool, England, L9 7AL, United Kingdom

Location

The London Clinic

London, England, W1G 6HL, United Kingdom

Location

Charing Cross Hospital

London, England, W6 8RF, United Kingdom

Location

Royal National Orthopaedic Hospital

Stanmore, England, HA7 4LP, United Kingdom

Location

Related Publications (1)

  • Nathwani D, McNicholas M, Hart A, Miles J, Bobic V. Partial Resurfacing of the Knee with the BioPoly Implant: Interim Report at 2 Years. JB JS Open Access. 2017 Apr 6;2(2):e0011. doi: 10.2106/JBJS.OA.16.00011. eCollection 2017 Jun 26.

Study Officials

  • Vladimir Bobic, MD

    Nuffield Health, The Grosvenor Hospital Chester

    STUDY CHAIR
  • Dinesh Nathwani, MD

    The London Clinic

    PRINCIPAL INVESTIGATOR
  • Michael McNicholas, MD

    Aintree University Hospital

    PRINCIPAL INVESTIGATOR
  • Alister Hart, MD

    Royal National Orthopaedic Hospital

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 10, 2011

First Posted

November 17, 2011

Study Start

November 1, 2011

Primary Completion

December 1, 2016

Study Completion

December 1, 2021

Last Updated

February 1, 2022

Record last verified: 2022-01

Locations