Humeral Resurfacing Hemiarthroplasty (CAP)

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. Identifier: NCT00477360
Recruitment Status : Unknown
Verified August 2011 by University of Calgary.
Recruitment status was:  Active, not recruiting
First Posted : May 23, 2007
Last Update Posted : August 11, 2011
DePuy International
Johnson & Johnson
Information provided by:
University of Calgary

Brief Summary:
The primary objective of this study is to examine quality of life outcomes in patients who have undergone a humeral surface replacement hemiarthroplasty.

Condition or disease Intervention/treatment Phase
Advanced Glenohumeral Arthritis Device: Humeral surface replacement hemiarthroplasty (CAP) Not Applicable

Detailed Description:
Resurfacing arthroplasty is gaining popularity for the reconstruction of advanced shoulder arthritis. New generation re-surfacing prostheses are engineered to anatomically restore a smooth articulating surface to the humeral head, while preserving bone stock, and potentially minimizing the risk for diaphyseal fracture. The results for shoulder resurfacing prostheses have largely been reported in retrospective reviews and have been very favorable. The purpose of this multi-centered, prospective study will be to determine the extent to which patient self-assessed outcomes (American Shoulder and Elbow Society (ASES) Score) following humeral resurfacing improve compared to pre-operative ASES scores.

Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 30 participants
Intervention Model: Single Group Assignment
Masking: Single (Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Humeral Resurfacing Hemiarthroplasty. Phase 2: Prospective Cohort Study
Study Start Date : January 2007
Estimated Primary Completion Date : February 2013
Estimated Study Completion Date : February 2013

Arm Intervention/treatment
Experimental: 1
Device: Humeral surface replacement hemiarthroplasty (CAP)
C.A.P hemiarthroplasty

Primary Outcome Measures :
  1. American Shoulder And Elbow Surgeons Shoulder Index (ASES) [ Time Frame: 24 months post-operative ]

Secondary Outcome Measures :
  1. Constant Score [ Time Frame: 24 months post-operative ]
  2. Western Ontario Osteoarthritis of the Shoulder Index (WOOS) [ Time Frame: 24 months post-operative ]
  3. Simple Shoulder Test (SST) [ Time Frame: 24 months post-operative ]
  4. Radiographic Evaluation [ Time Frame: 3 months + yearly post-operative ]

Information from the National Library of Medicine

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

Pre-Operative Inclusion Criteria:

  • Failed standard non-surgical management (analgesics, nsaids, physiotherapy, activity modification)
  • Persistent pain and disability for at least 6 months
  • Imaging demonstrates advanced humeral head cartilage loss

Pre-Operative Exclusion Criteria:

  • Active or systemic joint infection
  • Significant muscle paralysis of shoulder girdle
  • Charcot's Arthropathy
  • Major medical illness (life expectancy <2years)
  • Unable to speak and read English/French
  • Psychiatric illness that precludes informed consent
  • Unwilling/unable to remain in study for one year

Intra-Operative Inclusion Criteria:

Advanced humeral head cartilage loss AND ONE of:

  • minimal/no glenoid cartilage loss
  • complete glenoid cartilage loss and no bony erosion
  • complete glenoid cartilage loss and concentric bony erosion with no humeral anterior/posterior subluxation

Intra-Operative Exclusion Criteria:

  • Eccentric glenoid erosion with biconcavity of glenoid and subluxation of humeral head
  • Inability of humeral head to support the CAP surface replacement

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 identifier (NCT number): NCT00477360

Canada, Alberta
University of Calgary Sport Medicine Centre
Calgary, Alberta, Canada, T2N 1N4
Sponsors and Collaborators
University of Calgary
DePuy International
Johnson & Johnson
Principal Investigator: Dr. Richard Boorman University of Calgary
Principal Investigator: Dr. Dianne Bryant University of Western Ontario, Canada

Responsible Party: Dr. Richard Boorman, University of Calgary Identifier: NCT00477360     History of Changes
Other Study ID Numbers: 15052007
First Posted: May 23, 2007    Key Record Dates
Last Update Posted: August 11, 2011
Last Verified: August 2011