International Society of Arthroplasty Registries

Improving outcomes for individuals receiving joint replacement surgery worldwide.  

Mission Statement

“The members of the International Society of Arthroplasty Registries have a shared purpose of improving outcomes for individuals receiving joint replacement surgery worldwide. The focus of the society is to utilize the strength of cooperation and sharing of information and further enhance the capacity of individual registries to meet their own aims and objectives. The society is involved in the development of frameworks to encourage collaborative activities and provides a support network for established and developing registries.”

Old, historical document from 2005 removed from the website, some of the information will be found in the ISAR Bylaws. 

Welcome to the ISAR website  

Updated June 10, 2024
ISAR14th Annual International Congress of Arthroplasty Registries,  February 19-21, 2025, Christchurch, New Zealand 

Abstract submission will open June 15 and attached find the information regarding submission.

Deadline for submission of abstract: August 31, 2024 at 8pm UTC.

Decision will be sent prior to October 1, 2024. 

Here you will find the Invitation letter with basic information and hotel reservations in Christchurch.

Local organizing committee: John McKie (chairman), Jinny Willis, Gary Hooper, Simon Young, Peter Devane.

More information regarding registration and fees will be available later.  

May 1, 2024     

ISAR Membership fee for 2024

It is now time for the payment of the ISAR membership fee for 2024 (decided at the Business meeting on May 14, 2023) and invoices are on the way to the member registries. Please note that the membership fee is only possible to either pay with credit card by using the PapPal below or by bank transfer with banking details in your invoice. It is not possible to anymore pay the membership fee by check. 

June 10, 2024 

13th Annual International Congress of Arthroplasty Registries, June 1-3, 2024, Hamburg, Germany

157 persons participated in the 13th Annual Congress of Arthroplasty Registries in Hamburg, Germany, 1-3, 2024 at the Radisson Blu Hotel. 

Best podium presentation:  Periprosthetic joint infection after knee arthroplasty is underreported in the Danish Knee Arthroplasty Register - Marie Anneberg, Eskild Bendix Kristiansen, Anders Troelsen, Per Gundtoft, Henrik Toft Sørensen, Alma B Pedersen

Best poster: Representativeness of The Danish national health survey for research in total hip arthroplasty patients: a population-based study - Simon Storgaard Jensen, Lei Wang, André S Klenø, Nadia R Gadgaard, Henrik T Sørensen, Alma B Pedersen

On Sunday June 2 the annual business meeting took place.
Anne Lübbeke was confirmed as president and Brian Hallstrom elected as president elect for two years.
Maziar Mohaddes was re-elected as treasurer/secretary for two years.
Tim Wilton, Marina Torre and James Huddleston were re-elected as member-at-large for two years and Jürg Lützner was elected as member-at-large for two years.
Richard de Steiger and Liz Paxton were re-elected as Nominating committee for two years and Ola Rolfson was elected as Norminating committee for two years.
It was also decided that the annual membership fee for 2025 will be USD 1,200 per year.
It was also announced that the meeting in 2026 will be in Lund, Sweden, organized by the Swedish Arthroplasty Register, probably in the end of May 2026.
There was also an update of the 14th Annual ISAR congress to be held in Christchurch, New Zealand, February 19-21, 2025. 

Local Organizing Committee has been:

Grimberg, Alexander; Günther, Klaus-Peter; Kladny, Bernd; Lützner, Jörg (chairman); Morlock, Michael; Perka, Carsten; Steinbrück, Arnd (chairman)

The Local Organizing Committee and the Scientific Committee thank everybody that participated at the congress and hope to see everybody next year in Christchurch.

July 31, revised       

12th Annual International Congress of Arthroplasty Registries, May 13-15, 2023, Montreal, Canada

The congress did take place May 13-15, in Montreal at the Omni Mont-Royal Hotel and was attended by 104 participants. There also were a few virtual key note speakers. 

Best podium presenter was:  "Comparing functional outcomes after total hip and knee arthroplasty by patient response to registry questionnaires" -  Yushy Zhou, Cade Shadbolt, Sharmala Thuraisingam, Michelle Dowsey, Peter Choong, Chris Schilling 

Best poster was: "Association of coating and architecture of the surface metal with survival of uncemented total knee arthroplasty - A comparison between 11,135 uncemented and 235,500 cemented implants registered in the Dutch Arthroplasty Register" - Raymond Puijk, Rachid Rassir, Inger N Sierevelt, Anneke SpekenbrinkSpooren, Rob G H H Nelissen, Peter A Nolte 

On Sunday May 14 the annual business meeting took place and Anne Lübbeke was elected as president elect one year. Marina Torre and James Huddleston were elected as member-at-large for one year. Claus Varnum was re-elected as Accountant for two years. Robert Nehrer was approved ad adjunct member representing AdvaMed. At the business meeting the annual report for 2022 was discussed, the accountant report and information regarding IPL. It was also decided that the annual fee 2024  for membership will be USD 1,200 as there is only one category of membership. It was also announced that the meeting 2025 will be in New Zealand, organized by the New Zealand Registry, probably in the end of February 2025. 

There was also an update regarding the 13the Annual ISAR congress to be in Hamburg, Germany, June 1-3, 2024.

Conference Local Organizing Committee:
Eric Bohm (Chairman), Cynthia Vezina (Canadian Orthopaedic Association), Michael Terner (CIHI) 

Scientific Committee:

Drs Eric Bohm, Jason Werle, Jarret Woodmas, Jesse Wolfstadt and the ISAR Steering Committee 

The Local Organizing Committee and the Scientific Committee thank everybody that participated at the congress and hope to see everybody next year in Hamburg.

August 1, 2022 updated     

11th Annual International Congress of Arthroplasty Registries, September 3-5, 2022, Dublin, Ireland

On behalf of the Chairman of the Local Organizing Committee Paddy Kenny and the President of ISAR Ola Rolfson, we thank you all that came to Dublin for the congress. 

Membership payment for 2023

November 13, 2020

10th Annual International Congress of Arthroplasty Registries (2nd Annual Virtual Congress), November 11-13, 2021


November 13, 2020

9th Annual International Congress of Arthroplasty Registries (1st Annual Virtual Congress), November 13-15, 2020


September 4, 2020

ISAR Session at EFORT virtual congress - How To Use Registry Data For Medical Device Evaluation 

Wednesday 28 October 2020 from 10:30am to 11:30am
Website for more information:

May 26. 2020

ISAR Business meeting 2020 

The ISAR Business meeting 2020 (with ISAR paying members) did take place on May 26, 2020 as a video meeting with between 49-51 participants. Ola Rolfson was confirmed as the ISAR president for 2020-2022, Eric Bohm was eleccted as president elect. As new mebers-at-large Bryan Springer and Volkmar Jansson were elected. As new secretary/treasuer Maziar Mohaddes was elected. Ronald Navarro and Mark Wilkinson were re-elected as membver-at-large. New accountat is Soeren Overgaard.  

February 4, 2020

ISAR Lifetime Achievement Award 

The ISAR Lifetime Achievement Award honors individuals who have made a significant contribution to international registry science and worldwide patient outcomes through their leadership, service, innovation, scholarship and mentorship over a minimum of 25 years.  We have formalized the process for the selection of ISAR Lifetime Achievement Award which is in the document.  

Read more in   ISAR Lifetime Achievement Award

January 21, 2020

EFORT and ISAR Workshop 

At the 21st EFORT Congress in Vienna, Austria, June 10-12, 2020, there will be a special EFORT and ISAR Workshop on Thursday June 11 at 9:00am-11:00am. Registration for the Workshop on EFORT online-registration. 

Read more in  EFORT and ISAR Workshop

December 5, 2019

New report added

“The increased demand for international performance standards in total joint replacement emphasizes the need for a standardized global benchmarking system. Global benchmarking allows comparison of device performance at specific time points to a defined standard and to the performance of other equivalent devices. A global benchmarking system can enhance international public safety and cost effectiveness through the identification and subsequent use of higher performing arthroplasty prostheses.”

Read more in Report by International Prosthesis Benchmarking Working Group May 2018 

December 5, 2019

New section with publications

We have added a new section in the navigation that contains articles and reports from Working Groups. 

November 23, 2019 - updated

9th International Congress of Arthroplasty Registries

Most welcome to the 9th International Congress in Adelaide, Australia, May 23-25, 2020. Here you will find Invitation letter from Richard de Steiger.

Registration/payment and hotel reservation is now open at the special congress website at ISAR congress website 2020  

Congress contact: Alison Fallon. Telephone: +61 403 652 145, E-mail:

Abstract submission is now closed. Thank you all for submitting your abstracts. Information regarding abstracts and program: Decision will be sent out by December 20, 2019. 

Congress organising committee: Richard de Steiger, Cindy Turner, Peter Lewis and Liz Paxton.

June 28, 2019

New web site launched

Today we have launched the new web site. The web site will continuously be updated with more and new information. Please forward any information to which is the official e-mail address for ISAR.