American Board of Orthopaedic Surgery


ABOS Web-Based Longitudinal Assessment (ABOS WLA)

2020 ABOS WLA  Assessment  Window: April 1 at 9 am ET to June 1 at 5 pm ET

For information specific to your Certification end date, click on the link to the left that corresponds to the year your ABOS Board Certification expires.


Learn more about the 2020 ABOS WLA through this recent podcast and webinar.

ABOS WLA 2019 Survey Results and Changes to 2020 ABOS WLA (pdf)

The ABOS Web-Based Longitudinal Assessment Program (ABOS WLA) allows Diplomates to answer questions relevant to their everyday practice at a time that works for them, using their own computer, in whatever location they prefer.

Each January, the ABOS posts more than 100 Knowledge Sources from all areas of orthopaedic surgery on the ABOS website. These Knowledge Sources—journal articles, practice guidelines, AUCs, and other similar options—were chosen by practicing orthopaedic surgeons from across the country who were selected by the American Academy of Orthopaedic Surgeons (AAOS) and orthopaedic subspecialty societies. Diplomates may view all of the Knowledge Sources, but will pick 15 of these Knowledge Sources to study in-depth. These 15 Knowledge Sources will be the sources for your ABOS WLA questions.

In April, the Assessment Window will open for the Diplomate to answer questions delivered randomly based on the Knowledge Sources that they have chosen. For those who want to participate, there is a $260 assessment fee for each year of participation ($300 for those who hold a Subspecialty Certificate). The fee is paid at the time the Diplomate begins answering questions.

Diplomates will have three minutes to answer each question and can answer as many questions in one sitting as desired, as long as all 30 questions are answered during the assessment window. Two questions will come from each Knowledge Source. The assessment is open-book and Diplomates can use the Knowledge Sources, as long as the questions are answered within the three-minute window and that the answer represents the Diplomate’s own work. ABOS WLA Questions are presented in a multiple choice format.

There are two methods to successfully complete the ABOS WLA:

1. Diplomates with a certificate end date of 2019-2025 must earn five consecutive Quality Years by correctly answering at least 24 out of 30 questions a year.

2. Diplomates with a certificate end date of 2026 or later must answer 120 questions correct in six participating years or achieve five quality years, by the end of the 8th year of their 10-year cycle.

Additional information and requirements for your certificate end date can be found on the links to your left.

Diplomates who do not successfully compete the ABOS WLA will still have the opportunity to pass an ABOS Oral or Computer-Based Recertification Examination.

Diplomates who hold a Surgery of the Hand and/or Orthopaedic Sports Medicine Subspecialty Certification can recertify both their Subspecialty and General Certificates by selecting at least five Knowledge Sources in each Subspecialty.

The ABOS WLA meets the Part III requirement of the ABOS MOC program. Diplomates still must meet the other requirements of the ABOS MOC process. This includes completion of an Application, Application Fee, Case List, and earning the requisite Continuing Medical Education and Self-Assessment Examination credits.

Detailed Information By Certification Expiration

Choose your expiration year on the left-hand menu. If you do not know your expiration date, you can find it by clicking Verify Certification on the top of this page.

You must have an unexpired ABOS Board Certificate to participate in the ABOS WLA. Those Diplomates who hold a time-unlimited Certificate and a Subspecialty Certificate can participate in the ABOS WLA and will utilize the ABOS WLA to recertify both their General Orthopaedic Recertification and their Subspecialty Certification. Diplomates in non-operative and non-practicing practices must contact the ABOS for the application requirements.

The ABOS does not provide CME credits for the ABOS WLA. However, the American Academy of Orthopaedic Surgeons does as explained below and all questions regarding ABOS WLA CME should be addressed to them.

Accreditation and Designation

This activity has been planned and implemented in accordance with the accreditation requirements and policies of the Accreditation Council for Continuing Medical Education (ACCME) through the joint providership of the American Academy of Orthopaedic Surgeons (AAOS) and the American Board of Orthopaedic Surgery (ABOS). The American Academy of Orthopaedic Surgeons is accredited by the ACCME to provide continuing medical education for physicians.

The ABOS WLA is approved for 8 AMA PRA Category 1 Credits™ per year of participation which will be added to the AAOS portion of your transcript approximately 4-6 weeks after the close of the activity (which was extended to June 1 this year). A participant list is sent from ABOS after the close, and the AAOS will add the credits and then send out an email notifying you that the credits have been added. All you will have to do is go to your AAOS transcript and claim the credit. Then it will be uploaded to the ABOS website.

Please contact Donna Siwek at with any questions regarding this credit.

ABOS WLA Question Writers’ Disclosures


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