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Overview

The Canadian Joint Replacement Registry (CJRR) was launched in May 2001 as a voluntary registry and has now been mandated in several provinces. CJRR collects patient-specific information (clinical, surgical and prosthesis) on hip and knee replacement surgeries performed in Canada.

This metadata page primarily covers CJRR data collected via CJRR systems: the legacy CJRR electronic file system, the CJRR web tool (retired in 2018) and the CJRR paper forms (retired in 2013). As of 2018–2019, CJRR data can be submitted via the Discharge Abstract Database (DAD) under Group 20. Refer to the DAD metadata page for details about the DAD. As of 2022–2023, data providers can also submit CJRR prosthesis data via the National Ambulatory Care Reporting System (NACRS). Refer to the NACRS metadata page for details about NACRS.

Find out more about joint replacements, including reports and analyses that use CJRR.

• CJRR annual report: Hip and knee replacements in Canada

Data source

Data on joint replacement procedures is received directly from

• Facilities
• ºìÁì½í¹Ï±¨ regions
• Provincial ministries of health

Currently, CJRR reporting is mandatory in Nova Scotia, Ontario, Manitoba and British Columbia. Participation is voluntary in the other provinces and territories.

CJRR data is sourced from the CJRR electronic file system, the DAD Group 20 information and NACRS. Data source differs by jurisdiction. 

Data coverage

The table below shows CJRR prosthesis coverage by jurisdiction for 2021–2022 and 2022–2023:

More information on coverage can be found in Data Quality Documentation for Users (see Data quality below).

Data availability

CJRR data is based on surgery date and collected by fiscal year (April 1 to March 31).

• Most recent year: fiscal year 2023–2024
• Next release: fiscal year 2024–2025 (August 2025)
• Historical series: fiscal years 2001–2002 to 2022–2023

Data from 2003–2004 onward is available for custom data requests. Please complete a data request form.

Classification

No official classification standards are used in the capture of CJRR data (outside of the DAD and NACRS). Diagnosis and reason for revision are captured using drop-down categories identified by the CJRR Advisory Committee, with consideration given to the categories used by international orthopedic registries.

Data elements

CJRR data elements collect patient information, surgical information and prosthesis (implant) information. As of April 1, 2012, the data elements were streamlined to a new minimum data set (MDS). These are aligned with the standard set by the International Society of Arthroplasty Registries.

• Minimum data set (April 2018) (PDF)
• Access the full Canadian Joint Replacement Registry Minimum Data Set Manual (PDF) (Updated 2025).

Data quality

ºìÁì½í¹Ï±¨ensures that the quality of the information in our data holdings is suited to its intended uses and that data users are provided with accurate information about data quality. Read more about our Data and Information Quality Program.

The following data quality documents are available:

• Data Quality Documentation for Users: Canadian Joint Replacement Registry, 2020-2021 Data
• Data Quality Documentation for Users: Canadian Joint Replacement Registry, 2019-2020 Data
• Data Quality Documentation for Users: Canadian Joint Replacement Registry, 2018-2019 Data
• Data Quality Documentation for Users: Canadian Joint Replacement Registry, 2017-2018 Data
• Data Quality Documentation for Users: Canadian Joint Replacement Registry, 2016-2017 Data

Privacy impact assessment

Privacy impact assessments (PIAs) evaluate and address the privacy impacts of programs and systems. 

Go to the Privacy and security page to view the PIA, which contains further information about the purposes, data elements and data sources for this data holding.

Contact us 

For further information, please email

help@cihi.ca