Spondylolisthesis or Segmental Instability (Thoracolumbar) C&P Exam Prep

Forward Flexion (Active)

What it measures: How far you can bend forward at the waist; normal is 0-90-. This is the single most important ROM measurement for thoracolumbar spine ratings under the General Rating Formula.

What to expect: You will stand upright and bend forward as far as possible. The examiner uses an inclinometer or goniometer. The endpoint where pain limits further movement should be clearly noted and verbally reported.

Pain considerations: Per DeLuca v. Brown, pain on motion is separately evaluated. If pain limits motion before the anatomical endpoint, this must be documented. Tell the examiner exactly where in the arc of motion pain begins and where it stops your movement.

Extension (Active)

What it measures: Ability to bend backward; normal is 0-30-. Extension is often more limited and painful with spondylolisthesis due to posterior element loading.

What to expect: Standing, you will lean backward. Extension is frequently painful in spondylolisthesis and may be severely limited.

Pain considerations: Extension loading the posterior elements is a classic pain generator in spondylolisthesis. Report any reproduction of radicular symptoms (shooting leg pain, numbness) during this movement.

Lateral Flexion (Right and Left, Active)

What it measures: Side-bending range; normal is 0-30- bilaterally.

What to expect: You will slide your hand down the outside of your leg. Both sides are measured separately.

Pain considerations: Pain and muscle guarding during lateral flexion directly impacts the combined ROM calculation that determines the rating level.

Lateral Rotation (Right and Left, Active)

What it measures: Twisting range of the thoracolumbar spine; normal is 0-30- bilaterally.

What to expect: You may be asked to rotate your torso or the examiner may stabilize your pelvis. Both sides are measured.

Pain considerations: Rotational stress can provoke instability symptoms. Report any 'giving way,' catching, or sharp pain that occurs with rotation.

Passive Range of Motion

What it measures: ROM when the examiner moves the joint for you (without your active effort). Required under Correia v. McDonald.

What to expect: The examiner will gently assist your spine through its range of motion. This is compared to your active ROM.

Pain considerations: Passive ROM may be less painful and thus greater than active ROM, demonstrating that active restriction is pain-driven rather than structural.

Repetitive Use Testing (Three Repetitions)

What it measures: Whether ROM decreases after three repetitions of each movement, reflecting DeLuca functional loss from fatigue or pain with use.

What to expect: You may be asked to perform a movement three times. The examiner should note if the range decreases, pain increases, or fatigue develops.

Pain considerations: The DeLuca factors require documentation of pain, weakness, fatigue, and incoordination on repetitive use. This is particularly important for spondylolisthesis where instability may worsen with sustained activity.

Straight Leg Raise (SLR)

What it measures: Positive SLR at less than 60- suggests nerve root tension/radiculopathy, particularly L4-S1 involvement common with low-grade spondylolisthesis.

What to expect: You lie on your back while the examiner raises each leg. A positive test reproduces radiating pain down the leg (not just back pain).

Pain considerations: True radiculopathy documented via positive SLR opens a separate, stackable neurological rating - this can significantly increase your overall combined rating.

Muscle Strength Testing (Lower Extremity)

What it measures: Motor function in L2-S1 myotomes. Tests hip flexion (L2-L3), knee extension (L3-L4), ankle dorsiflexion (L4-L5), great toe extension (L5), and plantar flexion (S1).

What to expect: The examiner will ask you to push against resistance in various positions. Results are graded 0-5 on the Medical Research Council scale.

Pain considerations: Pain inhibition can reduce test performance. If pain prevents full effort, tell the examiner specifically: 'I cannot push harder because it causes sharp pain in my lower back/leg.'

Sensory Examination (Dermatomal)

What it measures: Whether you have decreased sensation (numbness), abnormal sensation (tingling/burning), or loss of sensation in nerve root distributions.

What to expect: The examiner uses a pin or light touch on specific areas of your legs and feet. Report honestly whether sensation is normal, reduced, or absent.

Pain considerations: Painful paresthesias (burning, electric sensations) are themselves a form of neurological impairment and should be specifically reported.

Deep Tendon Reflexes

What it measures: Patellar reflex (L3-L4) and Achilles reflex (S1) integrity - diminished or absent reflexes indicate nerve root impairment.

What to expect: The examiner taps specific tendons with a reflex hammer. This is passive - just relax your muscles.

Pain considerations: Absent reflexes paired with sensory and motor deficits create a complete neurological picture supporting a higher radiculopathy rating.

Muscle Atrophy Measurement

What it measures: Circumferential measurement of thighs and calves bilaterally to detect disuse or neurogenic atrophy.

What to expect: The examiner uses a tape measure at specific anatomical landmarks on both legs. A difference of 2+ cm between sides is clinically significant.

Pain considerations: Atrophy from disuse due to pain is also a compensable functional finding and should be documented regardless of its cause.

0%

Thoracolumbar forward flexion greater than 60- with no more than slight limitation, OR combined ROM greater than 240-, with guarding of the thoracolumbar area. Pain on movement is present but ROM does not fall within compensable thresholds.

From 38 CFR: Non-compensable under the General Rating Formula for Diseases and Injuries of the Spine. Note: painful motion alone, even without measurable limitation, may entitle the veteran to a minimum compensable evaluation under 38 CFR 4.59.

10%

Forward flexion of the thoracolumbar spine greater than 60- but with pain on motion, OR combined ROM of the thoracolumbar spine greater than 120- but not greater than 235-, OR muscle spasm, guarding, or localized tenderness not resulting in abnormal gait or abnormal spinal contour.

From 38 CFR: Evaluate under 38 CFR 4.71a General Rating Formula. Applies to spondylolisthesis via DC 5239 rated by analogy. Painful arc of motion under 38 CFR 4.59 may support this level even if measured ROM is technically within normal limits.

20%

Forward flexion of the thoracolumbar spine greater than 30- but not greater than 60-, OR combined ROM of the thoracolumbar spine not greater than 120-, OR muscle spasm or guarding severe enough to result in abnormal gait or abnormal spinal contour (such as scoliotic deformity).

From 38 CFR: 20% is a commonly assigned level for spondylolisthesis with moderate ROM restriction. Segmental instability can cause guarding-induced gait disturbance that pushes the rating to this level even if ROM is borderline.

40%

Forward flexion of the thoracolumbar spine 30- or less, OR favorable ankylosis of the entire thoracolumbar spine. This is a key threshold for spondylolisthesis. Also applies when combined ROM is -30-.

From 38 CFR: 40% is the maximum orthopedic rating under the General Rating Formula for thoracolumbar spine conditions absent unfavorable ankylosis. DC 5239 spondylolisthesis with severe forward flexion restriction of 30- or less reaches this level. Associated neurological findings (radiculopathy) are rated separately and can significantly increase combined disability.

50%

Unfavorable ankylosis of the entire thoracolumbar spine (spine fused in a flexed, extended, or laterally deviated position that causes functional loss). Not typical for spondylolisthesis unless post-surgical fusion has occurred in an unfavorable position.

From 38 CFR: 50% applies when unfavorable ankylosis of the entire thoracolumbar spine is documented. Veterans who have undergone spinal fusion surgery for spondylolisthesis and developed a fused, non-neutral posture may qualify. This level requires objective imaging confirmation.

100%

Unfavorable ankylosis of the entire spine (both cervical and thoracolumbar). Extremely rare and requires documentation of complete spinal immobility in an unfavorable position affecting the whole spine.

From 38 CFR: 100% under the General Rating Formula requires ankylosis of the entire spine, not just thoracolumbar. This level is uncommon for isolated spondylolisthesis but may apply when combined with cervical conditions and extensive surgical fusion.

Back Pain Character and Location

How to describe it: Describe the pain as accurately as possible: location (lumbar region, mid-back, across the lower back), character (aching, stabbing, burning, cramping, pressure), and radiation pattern. Specify whether pain is constant or comes in episodes.

Example: On my worst days, I have a constant stabbing pain in my lower back at about a 7-8 out of 10 that starts the moment I try to get out of bed. The pain radiates into my right buttock and down the back of my thigh to my knee. I cannot stand for more than 10 minutes or sit for more than 20 minutes without needing to change position or lie down.

Examiner listens for: Specific pain location correlating to the spondylolisthesis level, presence of mechanical pain (worse with activity, better with rest), and any neurological character (burning, electric, shooting) suggesting nerve root involvement.

Avoid: Saying 'it's not that bad' or 'I manage it.' Also avoid saying 'I'm used to it' - being conditioned to pain does not mean the pain is mild. Report the pain as it is on a typical bad day.

Flare-Ups

How to describe it: Describe what triggers a flare-up (lifting, prolonged sitting, bending, weather changes, physical activity), how frequently they occur, how long they last, and what you must do to manage them (bed rest, ice, heat, medications, stopping activity).

Example: I have severe flare-ups approximately 2-3 times per week. A flare-up starts when I try to bend to pick something up or after sitting for 30 minutes at a desk. The pain spikes to an 8-9 out of 10, my back seizes up and I cannot straighten fully, my leg goes numb, and I have to lie flat for 1-2 hours before I can function again. During a flare I cannot drive, cook, or care for myself.

Examiner listens for: Frequency and duration of flare-ups, whether they are incapacitating, how they affect daily function, and what activities trigger them. Under M21-1 and DeLuca, the examiner must document flare-up information.

Avoid: Saying 'I have some flare-ups sometimes.' Be specific - give numbers (how many per week/month, how many hours/days they last). If flare-ups prevent work or basic self-care, say so explicitly.

Functional Loss and Daily Activity Limitations

How to describe it: Describe specific activities you cannot do or can only do with significant pain or modification. Connect the limitation directly to your spondylolisthesis.

Example: I can no longer carry groceries because lifting more than 5 pounds causes immediate pain and my back feels like it will give out. I cannot mow the lawn, vacuum, or do laundry without taking breaks every 5 minutes. I stopped driving long distances because sitting in a car for more than 20 minutes causes severe back and leg pain. I cannot sleep more than 2-3 hours in a row because I wake up in pain when I try to roll over.

Examiner listens for: Specific named activities that are limited or impossible, whether limitations affect employment (cannot stand or sit at work), and whether the condition causes or exacerbates sleep disturbance, mood changes, or social isolation.

Avoid: Avoid vague statements like 'I can't do as much as I used to.' Name the specific activity, the specific limitation, and how long you can do it before pain forces you to stop.

Neurological Symptoms (Radiculopathy/Radicular Pain)

How to describe it: Describe any shooting, burning, electric, or numbing sensations that travel from your back down into your buttocks, thighs, legs, or feet. Specify which leg(s), which area of the leg, and whether the sensation is constant or intermittent.

Example: I have a constant burning and tingling sensation that runs from my lower right back, through my right buttock, down the back of my right thigh, and into my calf. On bad days the pain reaches my foot and my toes feel numb. I drop objects because my right hand compensates but also my right foot sometimes drags when I walk on bad days. I wake up at night with electrical shooting pain in my right leg.

Examiner listens for: Dermatomal distribution of symptoms, consistency of the pattern with the level of spondylolisthesis, and whether symptoms are constant versus intermittent. The examiner needs to determine if sciatic (L4-S1-S3) or femoral (L2-L4) nerve root involvement is present for separate neurological ratings.

Avoid: Saying 'I have some leg tingling' is not enough. Name the leg, describe the path of the symptom from proximal to distal, and describe whether it is numbness, burning, electric shocks, or weakness. These details determine which nerve root is involved and the severity of radiculopathy rated separately.

Weakness, Fatigue, and Incoordination

How to describe it: Describe any episodes of your legs feeling weak, buckling, or giving out. Report fatigue that comes on quickly with activity. Report any stumbling, tripping, or difficulty with coordination of gait.

Example: My right leg feels weak and unreliable, especially after I have been standing for 15 minutes. Sometimes my knee buckles without warning and I almost fall. I have to hold onto walls or furniture when I walk around my house. I trip frequently because I do not lift my right foot fully when walking. My back tires out extremely quickly - what used to be a 30-minute task now makes my back feel completely exhausted after 5 minutes.

Examiner listens for: DeLuca factors - specifically weakness, fatigue, and incoordination that produce functional loss beyond what ROM measurements alone would reflect. These symptoms can support a higher effective rating even if a single ROM measurement falls short of a threshold.

Avoid: Not mentioning weakness or fatigue at all. Many veterans focus only on pain and forget that weakness, lack of endurance, and incoordination are separately compensable functional loss factors under DeLuca v. Brown.

Instability of Station and Disturbance of Locomotion

How to describe it: If your back instability causes you to be unsteady on your feet, to use a cane, brace, or other assistive device, or to have an abnormal walking pattern, describe these specifically.

Example: I use a lumbar back brace every day because without it my back feels like it will collapse. I started using a cane 6 months ago because on bad days my back gives out and I nearly fall. I walk with a forward-leaning posture to avoid the pain of standing fully upright, and my gait is slow and shuffling compared to before my injury. I cannot walk more than half a block without stopping.

Examiner listens for: Objective signs of instability or locomotion disturbance that the examiner can observe during gait examination, as well as the veteran's self-report of assistive device use. The DBQ has specific checkboxes for instability of station and disturbance of locomotion that directly affect the rating.

Avoid: Leaving your cane or brace at home for the exam. Bring all assistive devices you actually use. Do not try to walk more normally than you do on a typical day - walk as you typically walk when in pain.