AOBOS Orthopedics

American Osteopathic Board of Orthopedic Surgery (AOBOS) Certification Examination in Orthopedic Surgery

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About this exam

The American Osteopathic Board of Orthopedic Surgery (AOBOS) is an AOA specialty certifying board that awards osteopathic board certification in orthopedic surgery. Certification is structured as a sequence of assessments rather than a single sitting: candidates complete a written examination and a clinical examination, then maintain the credential through Osteopathic Continuous Certification (OCC), whose components the board lists as active licensure, lifelong learning (CME), longitudinal assessment/OCC exam, and quality improvement. Subspecialty certification is offered in Hand Surgery and Orthopedic Sports Medicine, and the board also administers an OMT Designation recognizing osteopathic manipulative treatment.

This page serves DO orthopedic surgeons preparing for initial certification, subspecialty candidates, and diplomates who must complete OCC components on schedule. Study material is organized around the clinical domains that recur across the written and clinical assessments: trauma and fracture care, adult reconstruction and arthroplasty, sports medicine and arthroscopy, spine, hand and upper extremity, foot and ankle, pediatric orthopedics and musculoskeletal oncology, and general orthopedics with osteopathic principles.

Preparation works best as a longitudinal project rather than a cram: rotate through domains on a spaced schedule, rehearse structured case discussion for the clinical examination using the format described in the board's candidate materials, and treat the board's own posted dates and candidate information as authoritative for eligibility, deadlines, and fees. This is an independent study resource and is not affiliated with, endorsed by, or operated by AOBOS or the AOA.

What you'll study

Common questions

About AOBOS Orthopedics preparation

Which examinations lead to initial AOBOS certification in orthopedic surgery?

The board describes a certification process that includes a written examination and a clinical examination, with eligibility criteria published in its Information for Candidates section. Both must be satisfied before initial certification is granted. Because requirements and sequencing can change between cycles, confirm your specific pathway and eligibility directly with the board before you apply.

How many questions are on the written exam, and how long is it?

Those specifications are not published on the board pages reviewed here, so no item count or time limit can be stated reliably. Treat any number you hear from peers as unverified. Check the board's Exam Registration and Remote Exam Preparation pages, or contact the board, for the current blueprint, length, and testing platform details.

What is the application deadline for the written examination?

The board's posted calendar lists Aug. 3, 2026 as the AOBOS Written Exam Application date for the 2027 written exam cycle. That date reflects the cycle announced on the site at the time of retrieval. Always verify the live calendar, since application windows open and close and late materials are typically not accepted.

Is there a separate clinical examination, and when is it offered?

Yes. The posted calendar lists a June–Aug. 2026 clinical exam administration window for Summer 2026, and an April 1–Aug. 2026 application window for the Winter 2027 clinical exam. These are the announced windows only. Confirm your assigned date, location or remote format, and any case-list requirements with the board.

How do subspecialty exams in Hand Surgery and Sports Medicine work?

The board offers subspecialty certification in Orthopedic Sports Medicine (initial) and Hand Surgery (initial and OCC). The posted calendar shows a March 25–Aug. 25, 2026 application window and a Sept. 25, 2026 administration date. Subspecialty candidates should confirm whether they must hold primary certification first before applying.

What is required to maintain certification after I pass?

Maintenance runs through Osteopathic Continuous Certification, which the board lists as four components: active licensure, lifelong learning (CME), longitudinal assessment/OCC exam, and quality improvement. Activities are tracked in the physician portal. The 2026 longitudinal assessment period was posted as May 1–July 31, 2026 for Orthopedic Surgery and Orthopedic Sports Medicine.

What happens if I fail an examination, and how many retakes are allowed?

The retake policy, waiting periods, and any attempt limits are not stated in the board material reviewed here, so they cannot be quoted. Do not assume a fixed number of attempts. Request the current policy in writing from the board before you sit, so you can plan timing and study cycles around it.

Where are the passing score and examination fees published?

Neither a passing standard nor a fee schedule appears in the pages reviewed here. Both are set by the board and are subject to change by cycle. Obtain the current figures from the board's application materials or portal before budgeting, and keep the written confirmation with your application records.

How should I sequence my studying across the clinical domains?

Build a calendar that rotates through trauma, adult reconstruction, sports medicine, spine, hand and upper extremity, foot and ankle, pediatrics and oncology, and general orthopedics with osteopathic principles, revisiting each domain at spaced intervals rather than blocking one topic for weeks. Finish with mixed sets and structured case practice simulating the clinical examination format.

What are the most common preparation mistakes?

Candidates often over-invest in their own practice niche and under-prepare the breadth domains they rarely treat, neglect osteopathic principles and OMT content, and rehearse recognition rather than reasoning aloud. Others misjudge application windows and lose a cycle. Track deadlines on the board calendar and practice articulating differentials and management plans under time pressure.