Digital Sizing for Orthopaedic Hip Implants

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: NCT00665210
Recruitment Status : Unknown
Verified October 2011 by Ottawa Hospital Research Institute.
Recruitment status was:  Recruiting
First Posted : April 23, 2008
Last Update Posted : October 26, 2011
Information provided by (Responsible Party):
Ottawa Hospital Research Institute

Brief Summary:
Hip implants come in different sizes. Currently, surgeons predict the implant size that will be needed using an analogue method whereby photos of the implant sizes are overlaid on the x-rays. In this study, we propose to use a digital, computerized method of templating which we expect will be more accurate than the overlay method.

Condition or disease
Hip Arthritis

Study Type : Observational
Estimated Enrollment : 100 participants
Observational Model: Case-Only
Time Perspective: Prospective
Official Title: Photo-manipulation of Digital Radiographs and Digitized Templates as a Method for Preoperative Sizing of Total Hip Arthroplasties
Study Start Date : October 2007

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Arthritis
U.S. FDA Resources

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
Sampling Method:   Non-Probability Sample
Study Population
Patients booked for primary total hip arthroplasty with non-cemented prosthesis

Inclusion Criteria:

  • Patients booked for primary total hip arthroplasty with non-cemented prosthesis.
  • No previous surgery/fractures to acetabulum or femur or hip.
  • No gross bony abnormality except for osteoarthritis and avascular necrosis.

Exclusion Criteria:

  • Cancer or tumor suspected, morbid obesity, revision, previous acetabular/femur/hip surgery, gross bony deformity, calibration bar not completely pictured on radiograph, unsuccessful surgery fracture/cancer/cemented prosthesis used.

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): NCT00665210

Contact: Peter Thurston, MD 613-798-5555

Canada, Ontario
OHRI Recruiting
Ottawa, Ontario, Canada, K1Y 4E9
Sponsors and Collaborators
Ottawa Hospital Research Institute
Principal Investigator: Peter Thurston, MD Ottawa Hospital Research Institute

Responsible Party: Ottawa Hospital Research Institute Identifier: NCT00665210     History of Changes
Other Study ID Numbers: 2007-511
First Posted: April 23, 2008    Key Record Dates
Last Update Posted: October 26, 2011
Last Verified: October 2011

Keywords provided by Ottawa Hospital Research Institute:
hip arthritis
implant sizing

Additional relevant MeSH terms:
Joint Diseases
Musculoskeletal Diseases