Question 1
A 22-year-old patient sustains an open tibial shaft fracture with a 5-cm wound, moderate soft-tissue damage, and no neurovascular compromise. Using the Gustilo-Anderson classification, how is this fracture classified?
Correct Answer:
Type II
Question 2
A 35-year-old trauma patient has a leg injury with increasing pain and swelling. Compartment pressure is measured. Which finding is MOST diagnostic of acute compartment syndrome requiring emergent fasciotomy?
Correct Answer:
Delta pressure (ΔP = diastolic BP − compartment pressure) less than 30 mmHg
Question 3
According to Wolff's Law, bone remodels in response to:
Correct Answer:
The mechanical loads placed upon it
Question 4
Which cytokine is MOST important for osteoclast differentiation and activation?
Correct Answer:
RANK ligand (RANKL)
Question 5
A 68-year-old woman sustains a low-energy vertebral compression fracture. DEXA shows T-score of −3.2 at the femoral neck. Which medication class is first-line for osteoporosis treatment?
Correct Answer:
Bisphosphonates (e.g., alendronate)
Question 1
Exam overview

About this Exam

The ABOS Practice Test & Exam Prep is a comprehensive educational guide designed to help orthopaedic surgeons in training successfully navigate the rigorous requirements of the American Board of Orthopaedic Surgery (ABOS). The primary focus of this preparation is the ABOS Part I Examination, a critical milestone for residents seeking board certification. This course and its associated resources are tailored for individuals who have completed an accredited orthopaedic residency program and are preparing to demonstrate their fundamental knowledge and clinical reasoning skills. Passing the ABOS Part I Exam is the essential first step toward achieving the coveted title of ABOS Board-Certified Orthopaedic Surgeon, signaling a high level of competence and commitment to safe, quality patient care in the field.

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Additional Information

 What the Course Entails and Exam Details

The ABOS Practice Test & Exam Prep resources are structured around the detailed blueprint provided by the ABOS for its Part I Examination. The core objective is to evaluate a candidate’s understanding of general orthopaedics, the basic science behind orthopaedics, and their ability to apply this knowledge to solve complex clinical problems in diagnosis and treatment. The prep material covers an exhaustive list of topics, typically organized in two formats: a traditional anatomical approach and a subspecialty-focused approach. Key areas include General Principles of Orthopaedics, Adult Spine, Upper Extremities (including Shoulder, Elbow, and Hand Surgery), Lower Extremities (including Foot and Ankle, and Adult Reconstruction), Pediatrics, Neoplasms (Orthopaedic Oncology), Adult Trauma, and Orthopaedic Sports Medicine. Candidates must be prepared to interpret clinical information, laboratory tests, and imaging procedures, and demonstrate knowledge of both operative and non-operative management, including physical therapy and rehabilitation.

 

 

 What to Expect in the Final Exam

The final step in this process is the actual ABOS Part I Examination, a computer-based assessment. Candidates can expect a formidable challenge, as the examination typically contains between 320 and 330 multiple-choice questions. The test is designed to be comprehensive and time-intensive, with a strict time limit, requiring significant mental stamina. The specific number of questions and time allocated can vary, and candidates are advised to consult the official ABOS website for the most current information. The exam is administered in a secure, proctored environment. Results are not provided immediately upon completion; they are published by the ABOS on specified dates following a careful scoring and review process. A passing score, as determined by the ABOS, is required to move forward in the board certification process.

 

 

 How to Study and Exam Centers

Effective study for the ABOS Practice Test & Exam Prep involves a multi-faceted approach. A powerful strategy is to make extensive use of ABOS-specific question banks and mock exams to become familiar with the question format, style, and time constraints. Reviewing the official ABOS Part I Examination Blueprint is paramount, as it dictates the distribution of topics and depth of knowledge required. Many candidates find immense value in formal review courses, such as those offered by the American Academy of Orthopaedic Surgeons (AAOS), which provide structured lectures and peer discussions. Creating a dedicated study schedule that covers all blueprint areas, and forming study groups for collaborative learning, are also highly recommended practices.

The ABOS Part I Examination is administered exclusively at Pearson VUE Professional Centers. These secure testing facilities are located globally. To take the exam, candidates must first pay the examination fee and receive notification of their eligibility from the ABOS. Once eligible, they must log in to the ABOS portal to schedule their specific appointment time and location. It is crucial to arrive at the test center at least 30 minutes before the scheduled time with two valid forms of identification, as the check-in process is strict. No extra time is allowed for late arrivals.

 

 Job Opportunities from the Course

Successfully completing the ABOS Practice Test & Exam Prep and passing the ABOS Part I Examination is not just about earning a certificate; it is the absolute prerequisite for the entire ABOS Board Certification process. This achievement unlocks the primary path to becoming a recognized expert in orthopaedic surgery. While the "prep course" itself isn't a job, it is the key that opens the following specialized career opportunities:

  • ABOS Board-Certified Orthopaedic Surgeon
  • Orthopaedic Surgeon in a Private Practice, Group Practice, or Multi-Specialty Clinic
  • Orthopaedic Surgeon at an Academic Medical Center, with opportunities for research and teaching
  • Subspecialist Orthopaedic Surgeon (e.g., in Orthopaedic Sports Medicine, Surgery of the Hand, or Pediatric Orthopaedics, after completing a fellowship and additional certification)
  • Orthopaedic Surgeon in a Hospital System or Veterans Affairs Medical Center  
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