Implant Retrieval Analysis

Standards We Test

ISO 12891

Implants for surgery — Retrieval and analysis of surgical implants

Service Overview

Performing implant retrieval analyses can improve the clinical outcome of total joint replacements. Every implant retrieved at our centre is thoroughly cleaned, processed, and stored, while the clinical history of these implants are compiled into a secure database.

Relevant clinical data and their corresponding implants are pulled from our database when internal and/or contracted studies are initiated. Joint replacement components are then analyzed using all, or a select number of techniques using our state-of-the-art technology ranging from CMM and surface roughness measurements, to scanning electron microscopy and energy dispersive X-ray spectroscopy. Damage scoring is also performed by experienced observers using a published technique.

Additional Information

Where do your retrieved implants come from?

The majority of our retrievals come from Concordia Hospital in Winnipeg, a high volume centre for arthoplasty specializing in primary and revision hip and knee replacement surgery. We also receive some shoulder and elbow retrievals from the Pan Am Clinic (also in Winnipeg), and other hospitals in Manitoba.

We have also received implants from across Canada and internationally. These implants were retrieved from patients who had unique cases.

How many retrievals do you have in your database?

Our implant retrieval database is the largest in Western Canada. We currently have 2500+ retrieved joint replacements in our database. The majority of our collection consists of hip and knee joint replacements; however, we have some shoulder and elbow implants as well.

What type of joint replacement bearing materials are available in your database?

Our database contains bearing couples that consist of metal-on-polyethylene, ceramic-on-ceramic (hips only), ceramic-on-polyethylene (hips only) metal-on-metal, and oxinium-on-polyethylene joint replacements.

Have you published any of your studies?

We have published a number of retrieval analysis studies. Please see our Publications page for more information.

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