Skip to main content
Estimate

These guides are AI-generated educational summaries — not legal or medical advice.

C&P Exam Prep: Ankle Ankylosis

DC 5270 musculoskeletal 38 CFR 4.71a

DBQ Overview

Interview + Physical
Form Name
ankle
Form Code
ankle
Page Count
14
Examiner Type
Physician or Physician Assistant
Estimated Duration
20-30 minutes
Exam Format
Interview + Physical

What to Expect During Your Exam

Exam Overview

To document the nature, severity, and functional impact of ankle ankylosis for VA disability rating purposes under 38 CFR 4.71a, Diagnostic Code 5270. Ankylosis means the ankle joint is abnormally stiff, immobile, or fused - either from disease, injury, or surgical fusion. The examiner must determine the position of the ankle at fusion (plantar flexion, dorsiflexion, or neutral) and whether any deformity (abduction, adduction, inversion, eversion) is present, as these factors directly determine the rating percentage.

What the examiner evaluates:

  • Confirm diagnosis of ankle ankylosis (complete or near-complete loss of ankle joint motion)
  • Determine the degree and direction of the fixed position: plantar flexion angle (in degrees), dorsiflexion angle (in degrees), or neutral
  • Identify presence of deformity: abduction, adduction, inversion, or eversion
  • Active range of motion (ROM) of the affected ankle - dorsiflexion and plantar flexion
  • Passive range of motion - examiner manually moves the joint to detect any residual motion
  • Weight-bearing versus non-weight-bearing ROM differences
  • Pain on motion, at rest, and with repetitive use (DeLuca factors)
  • Functional loss caused by ankylosis: disturbance of locomotion, interference with standing or sitting
  • Muscle atrophy or weakness in the affected extremity
  • Assistive devices used (cane, brace, crutches, walker, wheelchair)
  • Surgical history: ankle arthroscopy, total ankle replacement, talectomy, or prior ankle fusion procedures
  • Diagnostic imaging findings (X-ray, MRI, CT) confirming ankylosis
  • Impact on daily activities, employment, and overall functional status

Exam typically occurs at a VA medical center, a VA-contracted facility (e.g., LHI/OptumServe, QTC), or via telehealth. In-person physical examination is strongly preferred and expected for ankle ankylosis because range-of-motion and deformity assessment are physically measured. You have the right to request recording of the examination in most states. Bring a support person if needed but notify staff in advance.

Typical duration: 20-30 minutes

Active Dorsiflexion Range of Motion

How far you can pull your foot upward toward your shin under your own muscle power, measured in degrees from neutral (0-). Normal active dorsiflexion is approximately 20-.

What to expect:

The examiner will ask you to sit or lie on the exam table and flex your foot upward as far as possible while they observe or use a goniometer to measure the angle. For true ankylosis, motion will be severely restricted or absent. They will record the starting and ending position.

Key thresholds:

  • Dorsiflexion fixed at more than 10- (e.g., foot angled upward beyond 10-) — 40% rating - unfavorable position
  • Dorsiflexion fixed between 0- and 10- — 30% rating
  • Plantar flexion fixed at more than 40- (foot pointed downward beyond 40-) — 40% rating - unfavorable position
  • Plantar flexion fixed between 30- and 40- — 30% rating
  • Plantar flexion fixed at less than 30- — 20% rating
  • Any abduction, adduction, inversion, or eversion deformity present — 40% rating regardless of plantar/dorsiflexion angle

Tips:

  • Do not force extra motion during testing - allow your natural, honest range to be recorded.
  • If pain prevents full effort, tell the examiner immediately: 'I am stopping because of pain at this point.'
  • Perform the motion as you would on a typical day, not your absolute best effort on a single good day.
  • Ask the examiner to record both the starting position and the endpoint of motion for each direction.

Pain considerations: Under DeLuca v. Brown, the examiner must consider and document whether pain limits motion before the anatomical endpoint is reached. If you feel pain before reaching maximum range, verbally state 'I have pain now at approximately this point' so the examiner documents it. Pain on motion - even if some motion remains - is a compensable functional loss factor.

Passive Dorsiflexion and Plantar Flexion (Correia Requirements)

Residual motion when the examiner physically moves your foot without your muscular effort. In true ankylosis, passive motion will also be absent or severely limited. Passive ROM may exceed active ROM when pain or muscle weakness limits effort but joint motion is possible - or may equal active ROM in true bony fusion.

What to expect:

The examiner gently holds your foot and attempts to move it in each direction. You should relax your ankle muscles completely. They will compare passive ROM to active ROM and document any difference. For true ankylosis, expect both to be near zero or fixed at the ankylosed angle.

Key thresholds:

  • Passive ROM equals active ROM — Confirms true ankylosis or severe structural restriction - supports ankylosis rating under DC 5270
  • Passive ROM significantly exceeds active ROM — May suggest limitation is pain-based or muscle-based rather than true bony ankylosis - examiner should document DeLuca factors

Tips:

  • Relax your ankle completely during passive testing - do not resist or assist the examiner's movement.
  • If passive motion causes pain, say so immediately and describe its location and intensity.
  • Passive ROM should be measured in both weight-bearing and non-weight-bearing positions per Correia requirements when applicable.

Pain considerations: Pain during passive motion is equally important to document. Tell the examiner if passive movement causes pain even if the range of motion appears similar to active. This is relevant to the overall functional loss assessment.

Weight-Bearing vs. Non-Weight-Bearing Assessment (Correia Requirements)

Whether your ankle's restricted position or residual motion changes when you are standing and bearing weight versus lying down or seated. Many ankle conditions worsen under load.

What to expect:

The examiner may assess your ankle while you are standing (weight-bearing) to observe alignment, deformity, and any dynamic changes. They may also observe your gait. This is then compared to seated or lying-down measurements.

Key thresholds:

  • Deformity worsens or becomes more pronounced with weight-bearing — Supports higher severity rating; documents real-world functional limitation
  • Gait disturbance observed on weight-bearing — Supports disturbance of locomotion finding, relevant to functional loss documentation

Tips:

  • Walk naturally for the examiner - do not try to mask your gait abnormality.
  • Describe any changes in your symptoms when standing for prolonged periods versus sitting.
  • Mention any falls, near-falls, or instability when standing or walking on uneven surfaces.

Pain considerations: Describe how weight-bearing specifically affects your pain level. For example: 'When I stand for more than 10 minutes, my ankle pain increases from a 4 to an 8 out of 10, and I must sit down or use my cane.'

Deformity Assessment (Abduction, Adduction, Inversion, Eversion)

Whether the ankylosed ankle is fixed in an abnormal sideways or rotational position, in addition to the forward/backward (plantar/dorsiflexion) plane. Any such deformity automatically places the rating at 40% regardless of the plantar/dorsiflexion angle.

What to expect:

The examiner will visually inspect and manually assess whether your foot deviates inward (inversion/adduction) or outward (eversion/abduction) from the neutral straight-ahead position. They will document the type and approximate degree of deformity.

Key thresholds:

  • Any abduction deformity present (foot turns outward) — 40% rating under DC 5270
  • Any adduction deformity present (foot turns inward) — 40% rating under DC 5270
  • Any inversion deformity present — 40% rating under DC 5270
  • Any eversion deformity present — 40% rating under DC 5270

Tips:

  • Bring imaging (X-rays, CT scan, MRI) that shows the ankylosed position and any deformity to the exam.
  • Mention to the examiner if your foot appears to turn inward or outward when you stand - ask them to specifically assess and document this.
  • If a prior surgical report describes the position of fusion, bring it to the exam.

Pain considerations: Deformity often causes secondary pain in the knee, hip, and lower back due to compensatory gait changes. Mention all secondary musculoskeletal complaints that began after your ankle became ankylosed.

Muscle Atrophy Measurement

Circumference of the calf and lower leg muscles compared to the unaffected side, measured in centimeters. Disuse atrophy occurs when an ankylosed ankle prevents normal muscle use.

What to expect:

The examiner may use a tape measure to compare the circumference of both calves at the same point above the ankle. A difference of more than 1-2 cm is clinically significant and supports functional loss documentation.

Key thresholds:

  • Measurable circumference difference between affected and unaffected calf — Supports functional loss finding; contributes to overall disability documentation

Tips:

  • Wear shorts or loose-fitting pants so both calves can be measured without restriction.
  • Do not flex your calf muscles during measurement - relax them.
  • Mention to the examiner if you have noticed your affected leg looks thinner than the other.

Pain considerations: Atrophy itself is not painful, but weakness from atrophy causes increased fatigue and instability. Describe how the weakness of your affected leg contributes to your overall functional limitations.

Repetitive Use Testing / DeLuca Factors

Whether your ankle range of motion, pain, weakness, fatigue, or coordination worsens after repetitive use (e.g., after walking, after prolonged standing). Under DeLuca v. Brown, the examiner must assess and document functional loss due to pain, weakness, fatigue, lack of endurance, and incoordination - not just the static ROM measurement.

What to expect:

The examiner should ask about your condition after activity or over the course of a day. They may ask you to perform a motion repeatedly and assess for worsening. For ankylosis, static measurements may look the same before and after, but pain and fatigue with use are critical functional loss factors.

Key thresholds:

  • Increased pain after repetitive use documented — Supports additional functional loss; prevents underrating based on static ROM alone
  • Fatigue, weakness, or incoordination documented after use — Required DeLuca factor for accurate functional loss assessment

Tips:

  • Proactively tell the examiner: 'After walking one block, my ankle pain increases significantly and I need to rest - please document this as a DeLuca factor.'
  • Describe your worst days, not your best days - the VA rates based on the full spectrum of your disability.
  • Mention any days when your condition flares up and prevents you from performing normal activities.

Pain considerations: Pain with activity is a DeLuca functional loss factor even when it does not change the measured ROM. Always state whether your pain increases with use and how long it takes to recover after exertion.

Estimate

Rating Criteria Breakdown

40% Ankle ankylosed (fixed/fused) in plantar flexion at MORE tha ...

Ankle ankylosed (fixed/fused) in plantar flexion at MORE than 40 degrees (foot severely pointed downward), OR in dorsiflexion at MORE than 10 degrees (foot excessively angled upward), OR with any abduction, adduction, inversion, or eversion deformity present. These are all 'unfavorable' positions because they cause significant gait disturbance and functional limitation.

Key Symptoms

  • Foot fixed in severe downward-pointed position (equinus/plantar flexion >40-)
  • Foot fixed in excessive upward tilt (dorsiflexion >10-)
  • Foot turned outward (eversion/abduction deformity)
  • Foot turned inward (inversion/adduction deformity)
  • Significant gait disturbance requiring assistive device
  • Inability to walk on flat ground without compensation
  • Severe functional limitation in standing, walking, climbing stairs

CFR: Per 38 CFR 4.71a DC 5270: 'In plantar flexion at more than 40-, or in dorsiflexion at more than 10- or with abduction, adduction, inversion or eversion deformity - 40%.' A foot fused in severe equinus (toes pointing sharply downward) or fused while turned sideways represents an unfavorable ankylosis.

30% Ankle ankylosed in plantar flexion BETWEEN 30 and 40 degrees ...

Ankle ankylosed in plantar flexion BETWEEN 30 and 40 degrees (moderate downward-point), OR in dorsiflexion BETWEEN 0 and 10 degrees (slight upward tilt). These are intermediate positions - less functional than neutral but not as severely disabling as the unfavorable extremes.

Key Symptoms

  • Foot fixed in moderate downward position (plantar flexion 30-40-)
  • Foot fixed in slight upward position (dorsiflexion 0-10-)
  • Moderate gait disturbance - able to walk with compensation
  • Difficulty on stairs, uneven terrain, prolonged standing
  • May require brace or supportive footwear to ambulate
  • Chronic pain with activity

CFR: Per 38 CFR 4.71a DC 5270: 'In plantar flexion, between 30- and 40-, or in dorsiflexion, between 0- and 10- - 30%.' A foot fused with the toes pointing moderately downward, requiring a heel lift or brace to walk, typifies this level.

20% Ankle ankylosed in plantar flexion at LESS than 30 degrees ( ...

Ankle ankylosed in plantar flexion at LESS than 30 degrees (mild or near-neutral downward position). This is considered the most 'favorable' ankylosed position because the foot is close to neutral and can still bear weight with less compensatory adjustment required. However, it is still a complete fusion of the ankle joint.

Key Symptoms

  • Foot fixed in mild downward position (plantar flexion <30-)
  • Near-neutral fusion - foot nearly flat but completely immobile
  • Able to ambulate without major gait deviation in some cases
  • Chronic pain with prolonged standing or walking
  • Fatigue of the affected leg with extended activity
  • Compensatory knee, hip, or back pain due to altered gait

CFR: Per 38 CFR 4.71a DC 5270: 'In plantar flexion, less than 30- - 20%.' A foot fused in a nearly neutral position (slightly toed-down) where the veteran can walk with a modified gait but has no ankle motion whatsoever.

How to Describe Your Symptoms

Pain Description

How to describe:

Describe the location (front of ankle, back of heel, along the joint line), character (sharp, aching, burning, throbbing), severity (use 0-10 numeric scale), frequency (constant vs. intermittent), and what makes it worse (standing, walking, cold weather, activity). Distinguish between your average pain level, your best days, and your worst days. The examiner needs to understand your WORST day presentation, not your best.

Worst-day example:

“On my worst days - which happen about 3 times per week - my ankle pain is a 9 out of 10 from the moment I wake up. The joint feels like a grinding, locked vice. I cannot stand for more than 5 minutes without needing to sit down. I have to take prescription pain medication and use my cane even to walk to the bathroom. I cannot drive, cannot climb stairs, and I spend most of the day elevating my leg.”

What the examiner listens for:

Consistency between reported symptoms and observed functional limitations; whether pain is constant or episodic; impact on sleep, daily activities, and employment; use of pain medications and assistive devices.

Understatements to avoid:

Do not say 'my pain is manageable' or 'I take ibuprofen and it helps.' This minimizes the severity. Instead, describe what your pain prevents you from doing even on medication. Do not describe only your average day - include your worst days.

Gait and Mobility

How to describe:

Describe exactly how far you can walk before needing to stop, how long you can stand, whether you limp, and what surfaces you cannot navigate (uneven ground, stairs, grass). Mention your gait pattern changes and whether you use assistive devices. Be specific about distances and time.

Worst-day example:

“I can walk approximately half a block before the pain becomes unbearable and I must stop and rest for 5-10 minutes. I cannot walk on grass or gravel without risking a fall. On bad days, I use my cane for anything beyond moving around my home. I have fallen twice in the past year because my ankle gave way on an uneven surface.”

What the examiner listens for:

Specific functional distances and time limits; history of falls; use of assistive devices (brace, cane, crutches, wheelchair); whether limitations are consistent with the objective findings; gait observation findings.

Understatements to avoid:

Do not say 'I can walk okay' or underestimate distances. If you push through pain to walk further, say so and describe the consequences (worsened pain afterward, needing to rest for hours). Do not downplay assistive device use.

Functional Loss from Ankylosis

How to describe:

The ankle is completely fused - describe everything you cannot do because the joint does not move. Include: cannot push off when walking (no plantar flexion), cannot absorb shock going downhill (no dorsiflexion), cannot pivot or turn quickly, cannot squat fully, cannot climb stairs normally, cannot run or jog, cannot stand on tiptoes.

Worst-day example:

“Because my ankle is completely fused, I cannot push off the ground normally when I walk - I have to swing my entire leg out to the side to take a step. I cannot go down stairs without holding the rail with both hands and going one step at a time. I cannot kneel, squat, or get up from the floor without assistance. My inability to flex my ankle means I cannot exercise, which has caused me to gain weight and develop secondary knee problems.”

What the examiner listens for:

Specific activities limited by the lack of ankle motion; compensatory movements; secondary conditions caused by altered gait; occupational and recreational impact; domestic activity limitations.

Understatements to avoid:

Do not say 'I just work around it.' Describe the compensatory movements you make and their consequences (back pain, knee pain, hip pain, fatigue). The fusion's positional impact on your gait is a key rating factor.

DeLuca Factors: Fatigue, Weakness, Endurance, Incoordination

How to describe:

Per DeLuca v. Brown, you must communicate how your condition worsens with repetitive use. Describe: how your ankle pain or discomfort increases after walking even short distances; how quickly your leg muscles fatigue; whether you experience weakness or giving-way; and whether your coordination is affected. These factors cause functional loss even when the static ROM measurement is the same as the fusion angle.

Worst-day example:

“After walking for more than 10 minutes, my entire affected leg becomes fatigued and I develop a burning sensation throughout my calf. My leg feels weak, like it could give out, and I become unsteady. It takes me 2-3 hours of rest to feel safe walking again. By the end of a day where I was moderately active, I am unable to stand without my cane.”

What the examiner listens for:

Whether the veteran proactively describes worsening with use; specific activities that cause exacerbation; recovery time needed after exertion; safety concerns from weakness or incoordination.

Understatements to avoid:

Do not wait for the examiner to ask about fatigue and weakness - bring it up yourself. Many examiners focus on the ROM measurement without asking about DeLuca factors. Say explicitly: 'I want to make sure we discuss how my condition worsens with activity.'

Flare-Ups

How to describe:

Describe what triggers flare-ups (weather changes, activity, prolonged standing), how often they occur, how long they last, their severity, and what you must do when they occur. Flare-ups represent the worst-case scenario of your condition and are critical to documenting the full picture.

Worst-day example:

“I experience flare-ups approximately once or twice per week, often triggered by cold weather or if I have been on my feet for more than 30 minutes the day before. During a flare-up, my ankle swells, the pain reaches 9 or 10 out of 10, and I am essentially bedridden for 1-2 days. I cannot prepare my own meals or perform any household tasks during these episodes.”

What the examiner listens for:

Frequency, duration, and severity of flare-ups; triggers; impact on daily function during flare-up periods; whether flare-ups cause the condition to be worse than the static snapshot seen on exam day.

Understatements to avoid:

Do not minimize flare-ups because 'they pass eventually.' The frequency and severity of flares are documented on the DBQ and factored into the overall disability picture. If the exam happens to be on a good day, explicitly tell the examiner: 'Today is not a typical day for me - my symptoms are usually worse than what I am showing you right now.'

Deformity and Position of Fusion

How to describe:

Be specific about the fixed position of your ankle. If your foot turns inward, outward, or is severely angled down or up, describe how this affects your walking, footwear, and daily life. If you have had surgery to fuse the ankle, describe the position of fusion as told to you by your surgeon.

Worst-day example:

“My foot is fused turned slightly inward and pointed downward. When I try to walk, my foot does not land flat - it rolls on the outside edge. I have had three ankle sprains on that side because of this positioning. I cannot wear standard shoes and must use custom-molded orthotics. The inward turn has caused my knee to compensate, and I now have chronic knee pain on the same side.”

What the examiner listens for:

Specific deformity type (inversion, eversion, adduction, abduction); impact on weight distribution and gait; secondary musculoskeletal effects; custom footwear or orthotic requirements.

Understatements to avoid:

Do not say 'my foot just looks a little off.' Any deformity - even mild - is critical under DC 5270 because ANY deformity (abduction, adduction, inversion, or eversion) triggers the 40% rating. Ask the examiner directly: 'Did you assess for and document any deformity of the foot position?'

Common Mistakes to Avoid

Prep Checklist

0/21 complete

Before Your Exam

Day Of

During the Exam

After the Exam

Your Rights During a C&P Exam

  • You have the right to have a representative (VSO, attorney, claims agent) present at your C&P examination.
  • You have the right to record your C&P examination in most states - notify the VA or contractor in writing before the exam that you intend to record.
  • You have the right to request a copy of the completed DBQ/examination report through FOIA or your VA portal after it is submitted.
  • You have the right to request a new or additional C&P examination if you believe the initial exam was inadequate, inaccurate, or did not address all relevant factors.
  • You have the right to submit an Independent Medical Opinion (IMO) from a private medical provider to supplement or rebut the C&P examiner's findings.
  • You have the right to submit a personal statement (VA Form 21-4138) and buddy statements to document your functional limitations in your own words.
  • You have the right to appeal a rating decision you disagree with through the Higher-Level Review (HLR), Supplemental Claim, or Board of Veterans' Appeals (BVA) pathways.
  • You have the right to be examined by a licensed healthcare provider - the examiner must be a physician, physician assistant, or other appropriately licensed provider.
  • You have the right to benefit of the doubt - when evidence is roughly equal for and against your claim, VA must resolve the doubt in your favor per 38 CFR 3.102.
  • The VA has a duty to assist you in developing your claim, including ordering appropriate diagnostic tests and ensuring the examination is adequate for rating purposes.
  • You have the right to submit a Notice of Disagreement (NOD) within one year of a rating decision to initiate the appeals process.
  • You have the right to request that the examiner document your worst-day symptoms, not just the snapshot seen on exam day, per M21-1 guidance on evaluating the full picture of disability.

Get Personalized C&P Exam Preparation

Upload your medical records for AI-powered prep that maps YOUR symptoms to the exact DBQ fields your examiner will evaluate.

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.