- What You Are Actually Sitting For
- Format, Fee and Remote Proctoring Mechanics
- Reading the Blueprint: Where the Points Live
- The Three Heavy Domains in Detail
- Mid-Weight Domains That Decide Close Scores
- Light Domains Worth a Targeted Pass
- Eligibility Checks to Finish Before You Study
- Sequencing Your Preparation by Domain
- Working Type A Questions Under a Two-Hour Clock
- After You Pass: The Ten-Year Cycle
- Frequently Asked Questions
- The exam is 100 Type A single-best-answer questions in one two-hour block, with no scheduled break.
- You need a score of 500 on the 200-800 scale to pass.
- Arthritis (13-15%), Nerve (12-14%) and Infection (11-13%) are the three largest domains on the blueprint.
- The initial fee is $3,000, and the exam is proctored remotely through MonitorEDU.
What You Are Actually Sitting For
This guide covers the Subspecialty Certification in Hand Surgery offered through the American Osteopathic Board of Orthopedic Surgery (AOBOS) under the AOA. The site label "Hand Surgery CAQ" is retained for search familiarity, but the current official name is Subspecialty Certification in Hand Surgery. Keep that distinction in mind when you read forum posts or study material, because several unrelated credentials share the same acronym and their exam formats, fees and content do not apply here.
If you are still orienting yourself to the credential, the basics are covered in What Is Hand Surgery CAQ Certification? and the broader Hand Surgery CAQ Certification overview. This article focuses on one job: building a preparation plan that matches how this particular exam is constructed.
Format, Fee and Remote Proctoring Mechanics
The exam is delivered remotely and proctored through MonitorEDU. AOA guidance references the PARADIGM practice interface, so treat any available familiarization with that interface as part of your preparation rather than an optional extra. The format facts that should shape your study are straightforward:
| Element | What Applies |
|---|---|
| Question type | Type A, single best answer, multiple choice |
| Number of questions | 100 |
| Time allowed | Two hours in one block, no scheduled break |
| Passing score | 500 on a 200-800 scale |
| Initial fee | $3,000 |
| Delivery | Private remote setting with equipment checks; authorized whiteboard/tools permitted |
Two hours for 100 questions averages out to roughly 72 seconds per item, and there is no break to reset. That makes stamina and pacing a real component of performance. Practice in full two-hour blocks at least a few times before exam day so the lack of a break is not a surprise.
No open-book or adaptive format has been verified for this exam, so prepare as though every item must be answered from memorized knowledge and clinical reasoning. For a deeper look at what the score threshold means in practice, see Hand Surgery CAQ Passing Score 2026, and for the full fee picture, including what sits beyond the initial $3,000, read the Hand Surgery CAQ certification cost breakdown.
Reading the Blueprint: Where the Points Live
The official blueprint is undated and organized into 12 categories, each expressed as a range rather than a fixed percentage. That matters for planning: the ranges tell you relative emphasis, not an exact number of questions per domain. A category listed at 13-15% might contribute somewhere around that share of your 100 items, but you should not build a study plan that depends on precise counts.
| Domain | Blueprint Range | Tier |
|---|---|---|
| Arthritis | 13-15% | Heavy |
| Nerve | 12-14% | Heavy |
| Infection | 11-13% | Heavy |
| Joint | 10-12% | Mid |
| Osseous | 9-11% | Mid |
| Tendon | 8-10% | Mid |
| Tumor | 7-9% | Mid |
| Microsurgery | 6-8% | Light-mid |
| Vascular | 5-7% | Light-mid |
| Amputation | 3-5% | Light |
| Pediatrics | 3-5% | Light |
| Soft Tissue | 1-3% | Light |
The three heavy domains together account for roughly a third to two-fifths of the exam, which is why they anchor the plan below. For a domain-by-domain walkthrough with additional context, the companion piece Hand Surgery CAQ Exam Domains 2026: Complete Guide to All 12 Content Areas goes deeper than this guide can.
The Three Heavy Domains in Detail
Arthritis (13-15%)
The largest single category rewards candidates who can match a pattern to a procedure and defend the choice. Expect questions that ask for the best next step given a joint, a stage and a patient demand level.
- Thumb carpometacarpal arthritis: staging, conservative options and the range of reconstructive and arthroplasty approaches
- Basal joint versus scaphotrapeziotrapezoid and pantrapezial disease
- Proximal interphalangeal and distal interphalangeal arthritis: fusion versus arthroplasty reasoning
- Rheumatoid hand and wrist: deformity patterns, tendon rupture risk and medical-surgical coordination
- Post-traumatic and wrist arthritis patterns such as scapholunate advanced collapse and scaphoid nonunion advanced collapse, with motion-sparing versus fusion options
Nerve (12-14%)
Nerve questions blend anatomy, electrodiagnostics and operative strategy. Distinguishing compression from injury, and partial from complete deficits, drives many of the answers.
- Carpal tunnel, cubital tunnel, radial tunnel and pronator syndromes: presentation, differential and release technique
- Peripheral nerve injury classification, timing of repair and when grafting or transfer is preferred
- Brachial plexus patterns and the logic of nerve transfers
- Tendon transfer principles after nerve palsy, including median, ulnar and radial deficits
- Complex regional pain syndrome and neuroma management
Infection (11-13%)
Infection is a high-yield domain because the correct answer is frequently time-sensitive. Know the urgent cases cold.
- Flexor tenosynovitis: Kanavel signs and the escalation from antibiotics to drainage
- Deep space infections, felon, paronychia and herpetic whitlow, including what not to incise
- Septic arthritis, osteomyelitis and necrotizing soft tissue infection recognition
- Bite wounds and organism-directed antibiotic choice
- Atypical and fungal infections and special host considerations
Key Takeaway
Because Arthritis, Nerve and Infection carry the heaviest ranges, a weak performance in any one of them is hard to offset elsewhere. Treat these three as non-negotiable strengths rather than areas to "get to if time allows."
Mid-Weight Domains That Decide Close Scores
The next tier, Joint (10-12%), Osseous (9-11%), Tendon (8-10%) and Tumor (7-9%), is where candidates near the 500 line tend to gain or lose their margin. These are domains many hand surgeons feel comfortable with clinically but under-review for exam purposes.
Joint and Osseous
These two categories overlap with everyday trauma practice, so the exam leans on fine distinctions rather than basics. Review fracture and dislocation classification systems, indications for operative versus nonoperative care, and complication recognition. Pay particular attention to carpal instability patterns, distal radioulnar joint problems, metacarpophalangeal and interphalangeal injuries, and the fixation options for phalangeal, metacarpal, scaphoid and distal radius fractures.
Tendon
Tendon questions reward knowing zones, timing and rehabilitation logic. Review flexor tendon repair by zone, extensor tendon injuries and boutonniere and swan neck deformities, tendon transfers, and the sequencing of staged reconstruction. Rehabilitation protocols and their rationale appear in this domain as much as technique does.
Tumor
Expect recognition-based questions: the most common benign soft tissue and bone tumors of the hand, how malignant lesions present, and the principle that biopsy planning must not compromise later resection. Knowing the typical imaging and clinical profile of ganglion, giant cell tumor of tendon sheath, enchondroma, glomus tumor and common malignancies lets you answer quickly and save time for harder items.
Light Domains Worth a Targeted Pass
Microsurgery (6-8%), Vascular (5-7%), Amputation (3-5%), Pediatrics (3-5%) and Soft Tissue (1-3%) are small individually, but together they represent a meaningful slice of the exam. Because each is narrow, they respond well to concentrated, high-yield review.
- Microsurgery: replantation indications and contraindications, vessel and nerve repair principles, free tissue transfer options for hand coverage, and postoperative monitoring.
- Vascular: vascular insufficiency, ischemia work-up, thrombosis and aneurysm patterns, and vasospastic disease.
- Amputation: level selection, stump management, ray resection versus revision, and prosthetic considerations.
- Pediatrics: congenital hand differences such as syndactyly, polydactyly and radial or ulnar deficiencies, plus pediatric fractures and growth-plate considerations.
- Soft Tissue: wound coverage hierarchy, flaps and grafts, burns, and scar management. At 1-3%, this is the lowest-yield domain, so keep review brief.
For a compact reference to revisit near exam day, the Hand Surgery CAQ Cheat Sheet condenses many of these must-know facts onto a single page.
Eligibility Checks to Finish Before You Study
It is wasteful to prepare for a sitting you are not yet eligible to take. Confirm the requirements first. Eligibility to sit follows a one-year ACGME hand fellowship with verification, plus licensure and ethics requirements. The award itself involves additional conditions beyond passing the exam:
- Qualifying AOBOS or AOBS primary certification
- Two years of active practice and appropriate privileges
- 125 major hand cases within a consecutive 12-month period, completed within three years
- At least 50% hand operative caseload
The case-log and caseload requirements are the items candidates most often underestimate. Start documenting early, and verify your numbers against official AOBOS guidance rather than assumptions. The full prerequisite picture is laid out in Hand Surgery CAQ Requirements 2026: Eligibility, Prerequisites & How to Qualify.
On scheduling, note that the September 25, 2026 sitting has already passed. Check current windows and deadlines in Hand Surgery CAQ Exam Dates 2026 before building a timeline around any specific date.
Sequencing Your Preparation by Domain
This is the one place for a structured schedule, and it is deliberately tied to the blueprint rather than to generic study theory. The logic: front-load the heaviest domains while energy is highest, review the mid-tier while material from earlier weeks is still fresh, and save the narrow domains for a final consolidation pass. Adjust the length to your own timeline; the order is what matters.
Arthritis and Nerve
- Work through thumb CMC, PIP/DIP, rheumatoid and wrist arthritis algorithms
- Review compression syndromes, nerve injury grading and tendon transfer principles
- Do a first block of practice questions in both domains and log every miss
Infection and Tendon
- Drill urgent infection scenarios until the escalation steps are automatic
- Cover flexor and extensor tendon injuries by zone, with rehabilitation rationale
Joint, Osseous and Tumor
- Review classification systems and operative indications for fractures and instability
- Build a recognition list of common hand tumors and their typical features
Microsurgery, Vascular, Amputation, Pediatrics, Soft Tissue
- One focused pass through each narrow domain
- Revisit every missed question from earlier weeks
Full-Length Simulation
- Sit at least one complete 100-question, two-hour block with no break
- Spend remaining time on weak areas identified by your miss log
If you find the pacing too compressed, extend the early weeks rather than cutting the final simulation. The full-length run is where you learn whether your timing and stamina hold without a break.
Working Type A Questions Under a Two-Hour Clock
Type A items present a clinical stem and ask for the single best answer from the options. In hand surgery, "best" usually means the most appropriate next step, the most likely diagnosis, or the preferred procedure for a described patient. Several habits help:
- Identify what is being asked before reading the options. Decide on your own answer first, then see which option matches it.
- Look for the time-sensitive element. In infection, vascular and acute injury stems, urgency often determines the correct choice.
- Note patient factors. Age, hand dominance, occupation, comorbidities and demand level frequently separate two otherwise reasonable options.
- Eliminate the dangerous option first. Options that risk missing an emergency or causing irreversible harm are rarely correct.
- Move on from stuck items. With roughly 72 seconds per question on average, a single item that consumes several minutes costs you the chance to answer several easier ones.
Practicing in a format that mirrors the real exam makes these habits automatic. The Hand Surgery CAQ practice tests on the main site let you rehearse single-best-answer pacing, and a structured set of timed runs is a better use of your final weeks than rereading notes. Candidates who want a realistic sense of the challenge can also read How Hard Is the Hand Surgery CAQ Exam?, and those curious about outcomes can review what the data shows on pass rates.
After You Pass: The Ten-Year Cycle
Certification runs on a ten-year cycle with ongoing OCC requirements. For the 2025-2027 cycle, the maintenance requirements include 60 CME hours with 15 of them Category 1-A, a quality-improvement attestation, and maintenance of professional standing. Hand surgery retains the long-form ten-year OCC exam, so the knowledge you build now has a second use a decade later. Keeping organized notes and a domain-based review structure pays off when that exam comes around.
Many candidates weigh the investment before committing. The financial and career picture is examined in the ROI analysis, with earnings context in the salary guide and practice-setting context in Hand Surgery CAQ Jobs. Those articles take a broader view; this guide stays focused on getting you through the exam itself on the first attempt.
Frequently Asked Questions
The exam has 100 Type A single-best-answer multiple-choice questions delivered in a single two-hour block with no scheduled break. That averages to roughly 72 seconds per question, so pacing practice is a meaningful part of preparation.
The passing score is 500 on a 200-800 scale. Because this is a scaled score rather than a simple percentage, avoid assuming a specific percent-correct cutoff and instead aim for solid performance across all twelve domains.
Start with the three largest blueprint categories: Arthritis (13-15%), Nerve (12-14%) and Infection (11-13%). Then cover Joint, Osseous, Tendon and Tumor, and finish with the narrower domains such as Microsurgery, Vascular, Amputation, Pediatrics and Soft Tissue.
It is proctored remotely through MonitorEDU, and AOA guidance references the PARADIGM practice interface. You need a private setting and must pass equipment checks, with authorized whiteboard or tools permitted. Confirm current technical requirements directly with the certifying body before your sitting.
No. The award additionally requires qualifying AOBOS or AOBS primary certification, two years of active practice, privileges, 125 major hand cases in a consecutive 12-month period within three years, and at least 50% hand operative caseload, on top of the fellowship, licensure and ethics requirements for sitting.
Preparing for this exam is largely a matter of aligning your effort with the blueprint, respecting the no-break two-hour format, and confirming your eligibility early. Anchor your study in the heavy domains, close the gaps in the middle tier, and rehearse the full-length format before test day. For a broader view of how this guide fits with the rest of the series, see the Hand Surgery CAQ Study Guide hub.