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C&P Exam Prep: Unfavorable Ankylosis - 4 Digits
DBQ Overview
Interview + Physical- Form Name
- Hand_and_Finger
- Form Code
- Hand_and_Finger
- Page Count
- 17
- Examiner Type
- Physician or Physician Assistant
- Estimated Duration
- 30-45 minutes
- Exam Format
- Interview + Physical
What to Expect During Your Exam
Exam Overview
To accurately document the nature, severity, and functional impact of unfavorable ankylosis affecting four digits of one hand under 38 CFR 4.71a DC 5217. The examiner must determine which four digits are affected, whether ankylosis is truly 'unfavorable,' document joint positions, measure fingertip-to-palm gap, assess for rotation or angulation, and evaluate functional loss for rating purposes.
What the examiner evaluates:
- Which four digits are affected and which hand (dominant vs. non-dominant)
- Whether ankylosis is favorable (-2 inch fingertip-to-palm gap, single joint fixed) or unfavorable (>2 inch gap, both MCP and PIP ankylosed, rotation, or angulation)
- Active and passive range of motion of each ankylosed joint
- Fingertip-to-proximal transverse palmar crease gap measurement in centimeters
- Position of ankylosis (flexion, extension, rotation, angulation) for each affected joint
- Presence of pain with motion and at rest
- Grip strength (hand grip dynamometry)
- DeLuca factors: pain, fatigability, weakness, incoordination, functional loss with repetitive use
- Whether amputation evaluation would yield a higher rating
- Impact on activities of daily living and occupation
- Flare-up frequency, duration, and severity
- Associated diagnoses (post-traumatic arthritis, degenerative arthritis, heterotopic ossification, etc.)
- Use of assistive devices or braces
- Muscle atrophy measurements (circumference comparisons)
Exam will include both interview (history, symptom description, functional impact) and physical examination (ROM testing, gap measurement, palpation, grip strength). Have all assistive devices present. In most states you have the right to record this exam - bring a recording device. The examiner will complete the Musculoskeletal Hand and Finger DBQ, which covers ankylosis of digit joints. Be prepared to discuss worst-day symptoms, not just your average day.
Typical duration: 30-45 minutes
Fingertip-to-Proximal Transverse Palmar Crease Gap (Finger Flexion Gap)
The distance in centimeters between the fingertip and the proximal transverse crease of the palm when the affected finger(s) are flexed to the maximum extent possible. This is the single most critical measurement for distinguishing favorable from unfavorable ankylosis.
What to expect:
The examiner will ask you to flex your affected fingers as far as possible toward your palm and will measure the gap. A gap greater than 2 inches (5.1 cm) establishes unfavorable ankylosis.
Key thresholds:
- -5.1 cm (-2 inches) — Suggests favorable ankylosis if only one joint (MCP or PIP) is ankylosed; lower rating applies
- >5.1 cm (>2 inches) — Establishes unfavorable ankylosis - qualifies for higher rating under DC 5217
- Both MCP and PIP ankylosed (any gap) — Automatically unfavorable regardless of gap measurement
Tips:
- Attempt the full flexion measurement on your worst day or when the fingers are most stiff
- Do not try harder than your true maximum - pain or stiffness should be noted
- Inform the examiner if you cannot flex further due to pain, not just structural limitation
- If swelling is present, mention it as it affects measurement
- Ask the examiner to measure in centimeters and to document the specific finger(s) and joint(s)
Pain considerations: Under DeLuca, if pain prevents full flexion, the gap at the pain endpoint counts. Tell the examiner exactly where the pain stops your motion and have them document the pain endpoint.
Active Range of Motion (AROM) - Each Ankylosed Joint
The voluntary movement you can perform at each affected joint (MCP, PIP, DIP, CMC for thumb, IP for thumb). Documented in degrees of flexion and extension.
What to expect:
The examiner uses a goniometer to measure flexion and extension at each joint of each affected digit. They will ask you to move each finger/thumb independently. Normal MCP flexion is 90-, PIP flexion is 100-, DIP flexion is 70-. Ankylosis means the joint is essentially fixed - expect 0- of motion or very limited motion documented.
Key thresholds:
- 0- motion at MCP and PIP of same digit — Automatically unfavorable - both joints of a single digit ankylosed
- Fixed in extension (0-) or full flexion — Unfavorable - may qualify for amputation evaluation
- Fixed at neutral (functional position) — Potentially favorable if single joint and gap -5.1 cm - lower rating
Tips:
- Move each finger actively to the limit of your ability - do not push through severe pain
- Report pain at every point in the range, not just at the endpoint
- Have the examiner measure each joint of each affected digit separately
- Note whether stiffness is worse in the morning or after rest (inflammatory pattern)
Pain considerations: Per DeLuca v. Brown, pain that limits motion must be documented. If the joint is not fully ankylosed but pain prevents movement, request that the examiner note painful motion and the degree at which pain begins.
Passive Range of Motion (PROM) - Each Ankylosed Joint
The movement achievable when the examiner moves the joint without your muscular effort. In true ankylosis, passive and active ROM will be the same (both near zero).
What to expect:
The examiner will gently attempt to move your fingers. In unfavorable ankylosis, passive motion should be equal to active motion (both severely limited). If passive ROM is greater than active ROM, that may indicate pain inhibition rather than structural ankylosis.
Key thresholds:
- Passive ROM = Active ROM (both severely limited) — Confirms structural ankylosis rather than pain-inhibited motion
- Passive ROM > Active ROM — May indicate functional limitation from pain - still ratable but different analysis under 38 CFR 4.40/4.45
Tips:
- Tell the examiner if passive movement causes pain
- Do not allow the examiner to force the joint - report any pain immediately
- Per Correia requirements, both active and passive ROM must be documented
Pain considerations: If passive motion causes pain, say so clearly. Pain on passive motion is a clinically significant finding that supports the severity of your ankylosis.
Grip Strength (Hand Grip Dynamometry)
The overall grip strength of the affected hand compared to the contralateral side, measured in pounds or kilograms.
What to expect:
You will be asked to squeeze a dynamometer handle. The examiner records grip strength for the affected hand and often the unaffected hand for comparison. Significantly reduced grip strength supports functional impairment.
Key thresholds:
- Significantly reduced vs. contralateral side — Supports functional loss finding; contributes to additional impairment description
- Unable to perform — Documents severe functional limitation
Tips:
- Perform to your true maximum - do not exceed your actual comfortable grip
- Report pain during the grip test
- If you normally avoid gripping due to pain or instability, say so
- Mention any adaptive gripping techniques you use
Pain considerations: Pain during grip testing is significant - state it clearly so the examiner documents it.
Thumb-Pad to Finger Opposition Gap (Thumb Ankylosis Only)
For thumb involvement, measures the gap between the thumb pad and the fingers when the thumb attempts opposition. Greater than 2 inches (5.1 cm) = unfavorable ankylosis of the thumb.
What to expect:
If the thumb is one of the four affected digits, the examiner will ask you to bring your thumb tip toward the fingers as far as possible and measure the gap.
Key thresholds:
- >5.1 cm (>2 inches) — Unfavorable thumb ankylosis - qualifies for thumb and any three fingers combination (60% or 50% rating)
- Both CMC and IP joints ankylosed — Automatically unfavorable regardless of gap
Tips:
- Attempt opposition with maximal effort but stop at the pain point
- Inform examiner of any rotation or angulation of the thumb
- Note whether the thumb is fixed in extension, flexion, or neutral position
Pain considerations: Pain preventing full opposition must be documented. Tell the examiner the opposition is limited by pain and where the pain is located.
Muscle Atrophy Measurement (Circumference)
Circumference of the affected upper extremity at a specified location compared to the opposite side to document muscle atrophy from disuse.
What to expect:
The examiner may measure the circumference of your forearm or hand and compare to the opposite side. Atrophy supports chronic disability and functional loss.
Key thresholds:
- Measurable circumference difference vs. contralateral — Documents disuse atrophy supporting chronic, severe functional limitation
Tips:
- Point out any visible wasting of the thenar or hypothenar eminences
- Note if your hand/forearm looks thinner on the affected side
- Mention if your grip has declined over time
Pain considerations: Atrophy is objective evidence of long-term disuse consistent with severe ankylosis - ensure the examiner documents it.
Rating Criteria Breakdown
| Rating % | Criteria | Key Symptoms |
|---|---|---|
| 60% | Unfavorable ankylosis of four digits including the thumb and any three fingers (e.g., thumb + index + long + ring, or thumb + index + long + little, or thumb + index + ring + little, or thumb + long + ring + little). Dominant hand. |
CFR: 38 CFR 4.71a DC 5217: 'Thumb and any three fingers' - dominant hand rated at 60%. Unfavorable ankylosis requires gap >2 inches (5.1 cm) or both joints of a digit ankylosed. |
| 50% | Either: (A) Unfavorable ankylosis of thumb and any three fingers - non-dominant hand; OR (B) Unfavorable ankylosis of index, long, ring, and little fingers (without thumb) - dominant hand. |
CFR: 38 CFR 4.71a DC 5217: 'Thumb and any three fingers' non-dominant, OR 'Index, long, ring, and little fingers' dominant = 50%. |
| 40% | Unfavorable ankylosis of index, long, ring, and little fingers (without thumb) of the non-dominant hand. |
CFR: 38 CFR 4.71a DC 5217: 'Index, long, ring, and little fingers' non-dominant hand = 40%. |
60% Unfavorable ankylosis of four digits including the thumb and ...
Unfavorable ankylosis of four digits including the thumb and any three fingers (e.g., thumb + index + long + ring, or thumb + index + long + little, or thumb + index + ring + little, or thumb + long + ring + little). Dominant hand.
Key Symptoms
- Thumb and three additional fingers ankylosed in unfavorable position
- Fingertip-to-palm gap >5.1 cm on affected fingers OR both MCP and PIP ankylosed
- Thumb opposition gap >5.1 cm OR both CMC and IP joints ankylosed
- Severe grip strength reduction
- Near total loss of fine motor function
- Unable to perform pinch, grip, or precision tasks
- Rotation or angulation of one or more digit bones
CFR: 38 CFR 4.71a DC 5217: 'Thumb and any three fingers' - dominant hand rated at 60%. Unfavorable ankylosis requires gap >2 inches (5.1 cm) or both joints of a digit ankylosed.
50% Either: (A) Unfavorable ankylosis of thumb and any three fin ...
Either: (A) Unfavorable ankylosis of thumb and any three fingers - non-dominant hand; OR (B) Unfavorable ankylosis of index, long, ring, and little fingers (without thumb) - dominant hand.
Key Symptoms
- Four non-thumb fingers (index, long, ring, little) all ankylosed in unfavorable position, OR
- Thumb and three fingers ankylosed unfavorably on the non-dominant hand
- Fingertip-to-palm gap >5.1 cm for each affected finger
- Severely limited or absent prehension
- Significant reduction in grip and pinch strength
- Functional hand limited to gross stabilization only
CFR: 38 CFR 4.71a DC 5217: 'Thumb and any three fingers' non-dominant, OR 'Index, long, ring, and little fingers' dominant = 50%.
40% Unfavorable ankylosis of index, long, ring, and little finge ...
Unfavorable ankylosis of index, long, ring, and little fingers (without thumb) of the non-dominant hand.
Key Symptoms
- Four non-thumb fingers ankylosed unfavorably on the non-dominant hand
- Gap >5.1 cm for each affected finger or both MCP and PIP of each digit ankylosed
- Reduced but not absent grip due to thumb still functional
- Limited fine motor function on non-dominant hand
- Moderate to severe functional impairment for non-dominant hand tasks
CFR: 38 CFR 4.71a DC 5217: 'Index, long, ring, and little fingers' non-dominant hand = 40%.
How to Describe Your Symptoms
Joint Position and Structural Ankylosis
How to describe:
Describe exactly which joints feel completely locked. State that your finger(s) are fixed - they do not move at all or move only a few degrees. Specify whether the joint is stuck in a bent position (flexion) or a straight/extended position, and whether the finger points in an abnormal direction (rotation or angulation).
Worst-day example:
“On my worst days, my index, long, ring, and little fingers are completely rigid - I cannot bend them at all at the knuckle joints, and the fingers stay bent at about 45 degrees, pointing slightly to the side. When I try to make a fist, my fingertips cannot come within four inches of my palm.”
What the examiner listens for:
Fixed joint position, inability to flex or extend, abnormal resting position of the digit, gap measurement that exceeds 5.1 cm, presence of both MCP and PIP fixation in the same digit.
Understatements to avoid:
Do not say 'my fingers are a little stiff' - if they are truly ankylosed, say they are locked or fixed in position. Do not downplay the gap - if it is more than 2 inches, describe it clearly.
Pain (DeLuca Factor)
How to describe:
Describe pain with movement, at rest, with gripping, and during flare-ups. Include location (which joint, which finger), character (sharp, aching, burning), severity (0-10 scale), and what triggers or worsens it.
Worst-day example:
“On my worst days, even gentle contact with the affected fingers causes sharp pain rated 8/10. The pain wakes me at night if I accidentally flex the hand. Any attempt to grip something as thin as a pen causes immediate sharp pain at the knuckle joints.”
What the examiner listens for:
Pain on motion, pain on passive motion, pain at rest, pain that limits functional activities, pain severity and character, relationship between pain and functional loss.
Understatements to avoid:
Do not say 'it is uncomfortable' - say it is painful. Do not say 'it hurts a little' if it is severe pain. Describe your actual worst-day experience, not your average or minimized experience.
Fatigability and Weakness (DeLuca Factor)
How to describe:
Explain how quickly hand strength gives out with use. Describe what you can no longer do because the hand fatigues or because you have no grip. Include examples from daily life.
Worst-day example:
“I can no longer open jars, turn doorknobs, button shirts, or use a keyboard for more than a few minutes before the hand becomes too weak and painful to continue. I drop objects frequently because I cannot maintain grip.”
What the examiner listens for:
Loss of grip endurance, inability to sustain holding tasks, dropping objects, avoidance of activities requiring grip or pinch.
Understatements to avoid:
Do not say 'I manage fine most of the time' - describe the specific tasks you can no longer perform or perform with great difficulty.
Incoordination (DeLuca Factor)
How to describe:
Describe any loss of fine motor control. Include difficulty with precision tasks such as buttoning, writing, typing, picking up small objects, or handling coins.
Worst-day example:
“I cannot pick up a coin from a flat surface, button a shirt, or hold a pen steadily enough to write legibly because the ankylosed fingers cannot perform the small movements required.”
What the examiner listens for:
Loss of dexterity, inability to perform precision tasks, compensatory strategies (using other hand, adaptive devices).
Understatements to avoid:
Do not say 'it is just slow' if you truly cannot perform precision tasks - say you cannot do them at all or only with great difficulty and adapted technique.
Flare-Ups (DeLuca Factor)
How to describe:
Describe episodes when the condition worsens beyond baseline. Include frequency, duration, triggers (cold, overuse, weather), and what additional functional loss occurs during flare-ups. Quantify additional ROM loss if possible.
Worst-day example:
“I have flare-ups two to three times per week, lasting one to two days, triggered by cold weather or any attempt to use the hand. During flare-ups, even the slight residual movement I normally have disappears and the pain increases to 9/10. I cannot use the hand for anything.”
What the examiner listens for:
Frequency and duration of flare-ups, additional functional loss during flare-ups, triggers, ROM loss during flare-ups that exceeds baseline measurement.
Understatements to avoid:
Do not say 'I have occasional flare-ups' without describing them in detail. The examiner needs specific frequency, duration, and impact to document them properly.
Functional Impact on Activities of Daily Living and Occupation
How to describe:
Give specific examples of activities you can no longer do or do with significant difficulty. Include work tasks, self-care, household tasks, and recreational activities. Be specific about which tasks and why they are impaired.
Worst-day example:
“I cannot type, write, cook, drive, perform personal hygiene properly, or perform my former job duties as a [job title] because all four fingers of my dominant hand are locked. I use my opposite hand for almost everything and have dropped several items including hot pots causing burns.”
What the examiner listens for:
Specific functional limitations linked to the ankylosed digits, occupational impact, adaptive strategies, safety concerns.
Understatements to avoid:
Do not give vague answers like 'it limits what I can do.' Give specific, concrete examples of tasks that are impossible or severely impaired.
Common Mistakes to Avoid
Describing symptoms as 'average' rather than 'worst day'
VA rating is based on the full range of disability. Per M21-1 guidance, the examiner is required to document the veteran's worst-day presentation for flare-ups and DeLuca factors.
Instead: When asked how you are doing, clarify: 'Today may not represent my worst days. On my worst days...' and describe worst-day symptoms fully.
Impact: All levels - can cause underrating at any percentage
Failing to distinguish which specific joints are ankylosed
The rating depends on whether the MCP, PIP, DIP, CMC, or IP joints are involved and whether both joints of a single digit are ankylosed. Vague descriptions lead to incomplete DBQ documentation.
Instead: Know your anatomy - the knuckle closest to the palm is the MCP, the middle joint is the PIP, and the tip joint is the DIP. The thumb has a CMC (base) and IP (tip) joint. Tell the examiner specifically which joints are locked.
Impact: Critical for establishing unfavorable vs. favorable ankylosis distinction
Not mentioning the fingertip-to-palm gap measurement
The 2-inch (5.1 cm) gap threshold is the primary determinant of favorable vs. unfavorable ankylosis for index, long, ring, and little fingers. If the examiner does not specifically measure this, the most important diagnostic threshold may not be documented.
Instead: Proactively ask: 'Will you be measuring the gap between my fingertip and my palm with my fingers flexed as far as possible?' Ensure this measurement is performed and documented.
Impact: Directly determines favorable vs. unfavorable - difference of one or more rating levels
Not disclosing that both the MCP and PIP joints are ankylosed in the same digit
If both joints of a single digit are ankylosed, that is automatically unfavorable ankylosis regardless of the gap measurement. This is a key legal threshold under M21-1.
Instead: Clearly state: 'Both my knuckle joint and my middle finger joint are completely fixed on my [finger name].' Ensure the examiner examines and documents both joints of each affected digit.
Impact: Directly determines unfavorable ankylosis classification
Failing to mention rotation or angulation of the ankylosed digit
Rotation or angulation in an ankylosed digit is a criterion for unfavorable ankylosis and may support amputation equivalence evaluation, potentially leading to a higher rating.
Instead: Show the examiner if any affected finger points in an abnormal direction or is twisted. State: 'My [finger] appears to be rotated/angled compared to the others when I look at my hand.'
Impact: May push rating to unfavorable classification or support amputation consideration
Not clarifying dominant vs. non-dominant hand
DC 5217 has different rating percentages for dominant vs. non-dominant hand. The dominant hand receives the higher rating (e.g., 60% vs. 50% for thumb + three fingers).
Instead: Clearly state which hand is your dominant hand at the beginning of the exam. Confirm the examiner has documented this in the DBQ.
Impact: 10-percentage-point difference at each level
Underreporting or not mentioning flare-ups
Under DeLuca v. Brown and 38 CFR 4.40/4.45, functional equivalence of ankylosis during flare-ups can establish entitlement even when baseline ROM is not fully ankylosed. Flare-up information is required in the DBQ.
Instead: Proactively describe flare-up frequency, duration, triggers, and the additional functional loss that occurs. Bring a flare-up diary or notes if possible.
Impact: Critical for establishing functional equivalence of ankylosis
Failing to request an amputation equivalence evaluation
38 CFR 4.71a DC 5217 includes a note that amputation evaluation should be considered. In some cases, an amputation rating (DC 5153-5156) may yield a higher rating.
Instead: Ask the examiner: 'The DC 5217 rating criteria note that amputation evaluation should be considered. Has that been considered in this evaluation?'
Impact: Potentially higher than DC 5217 ratings if amputation equivalence applies
Prep Checklist
Before Your Exam
Day Of
During the Exam
After the Exam
Your Rights During a C&P Exam
- You have the right to record your C&P examination in most states under state recording laws. Bring a device and inform the examiner at the start of the exam.
- You have the right to have the examination conducted in person, not just as a records review. If the examiner attempts to rate based solely on records without examining you, you may request an in-person examination.
- You have the right to a thorough examination. The examiner must document active ROM, passive ROM, the fingertip-to-palm gap measurement, DeLuca factors (pain, fatigability, weakness, incoordination, flare-ups, and repetitive use), and dominant hand designation.
- You have the right to review the completed DBQ. Request it through MyHealtheVet, your VSO, or by written request to the VA Regional Office.
- You have the right to submit a personal statement correcting any inaccuracies in the DBQ before a rating decision is issued.
- You have the right to request a new or supplemental C&P examination if the original was inadequate, if new evidence is submitted, or if the examiner failed to address all relevant factors.
- Under 38 CFR 4.40 and 4.45, the VA must consider DeLuca factors including pain-limited motion, fatigue, weakness, and flare-up periods in rating your ankylosis. These factors can establish functional equivalence of ankylosis even when baseline ROM is slightly above the threshold.
- The benefit of the doubt (38 CFR 3.102) requires the VA to resolve close calls in your favor. If the evidence is in approximate balance, the higher rating must be assigned.
- Under DC 5217, VA regulations require the examiner to also consider whether evaluation as amputation (DC 5153-5156) would yield a higher rating. You have the right to ensure this consideration is documented.
- You have the right to bring a VSO representative, accredited claims agent, or attorney to your C&P examination as an observer.
- You have the right to request a different examiner if you believe the examiner was not thorough or failed to follow examination protocols. Document specific deficiencies in writing.
Related Conditions
- Unfavorable Ankylosis - 5 Digits If a fifth digit is also ankylosed unfavorably, rating under DC 5216 (60% or 50%) may apply. Examiner should document all five digits. If four digits qualify under DC 5217 but five are affected, DC 5216 should be evaluated.
- Unfavorable Ankylosis - 3 Digits DC 5218 applies when only three digits are affected. If documentation at the exam supports only three unfavorable ankylosed digits rather than four, DC 5218 would apply at lower ratings. Ensuring accurate documentation of all four affected digits is critical.
- Post-Traumatic Arthritis of the Hand Frequently the underlying cause of ankylosis following trauma. Often rated separately or as the basis for the ankylosis diagnosis. The examiner may document this as an associated diagnosis.
- Degenerative Arthritis of the Hand May be the etiology of ankylosis in non traumatic cases. Can be rated separately under DC 5003 in some circumstances, or may be the basis for the ankylosis rating.
- Favorable Ankylosis - Digits If the gap is 5.1 cm and only a single joint is ankylosed per digit, VA may rate as favorable ankylosis at lower percentages. Understanding this distinction is critical to ensuring the correct (unfavorable) classification.
- Trigger Finger May coexist with or precede ankylosis. Can be separately ratable or may contribute to documented functional loss.
- Amputation of Digits (DC 5153-5156) DC 5217 includes a regulatory note requiring the examiner to consider whether amputation rating would be more favorable. When both MCP and PIP are ankylosed with extension or full flexion, or there is rotation or angulation, amputation equivalence under DC 5153 5156 must be evaluated.
- Boutonni-re Deformity May cause or accompany digital ankylosis. If present, it should be documented as a contributing diagnosis and may affect the characterization of ankylosis position.
- Swan-Neck Deformity May coexist with or result from the same underlying joint disease causing ankylosis. Should be separately documented as it affects the functional position of the digit.
- Heterotopic Ossification Pathological bone formation that can cause or confirm joint ankylosis. Should be documented via imaging and noted in the DBQ to support the ankylosis diagnosis.
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This C&P exam preparation guide is for educational purposes only and does not constitute legal, medical, or claims advice. Always consult with a qualified Veterans Service Organization (VSO) representative or VA-accredited attorney for guidance specific to your claim. Never exaggerate, minimize, or fabricate symptoms during a C&P examination.