Long Island Facet Joint Injury
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Understanding Facet Joint Injuries from Car Accidents on Long Island

The zygapophyseal joints — universally called facet joints — are paired synovial joints at every level of the cervical, thoracic, and lumbar spine. They guide spinal motion, prevent excessive rotation and translation, and bear a significant share of axial load in the extended spine position. In the cervical spine, the facet joints are oriented at approximately 45 degrees, making them particularly vulnerable to the combined compression and shear forces generated during rear-end collision whiplash mechanisms.

When your car is struck from behind, your cervical spine undergoes a characteristic S-curve deformation that takes less than 300 milliseconds — faster than your neuromuscular reflex can respond. During this deformation, the lower cervical levels (C5-C6, C6-C7) hyperextend first while the upper cervical levels (C2-C3, C3-C4) are still in flexion. This S-curve creates a distinct facet joint impingement and capsular strain at the mid-cervical levels that is mechanically separate from the disc compression and annular fiber disruption that produces disc herniation. The result is facet capsular ligament tear, acute hemarthrosis (bleeding into the joint space), and in high-velocity impacts, osteochondral fracture of the articular surface.

Why Facet Joint Pain Does Not Show on MRI

The most significant challenge in a facet joint injury case — and the source of most insurance company disputes — is that standard clinical MRI is NOT a reliable diagnostic tool for facetogenic pain. MRI can identify gross structural abnormalities such as marked facet joint effusion, severe articular cartilage loss (facet osteoarthritis), or frank osteochondral fracture in high-energy impacts, but it cannot confirm that a facet joint is the source of a patient’s chronic pain. The MRI sequences used in routine clinical imaging are not designed to detect subtle capsular ligament injury at the facet level or to distinguish between asymptomatic facet degeneration (present in most adults over 40) and acute traumatic facetogenic pain.

This means that a patient with severely symptomatic cervical facet syndrome following a rear-end collision may have an MRI report that reads “unremarkable” or “age-appropriate degenerative changes.” Defense IME doctors exploit this finding relentlessly: “The MRI shows no evidence of acute injury; therefore, there is no injury.” This argument is clinically and legally incorrect, but it requires a well-documented clinical record and an experienced attorney to refute effectively.

Diagnosis: The Medial Branch Block as the Gold Standard

The gold standard for diagnosing facetogenic pain is the diagnostic medial branch block. The medial branch nerve is the small nerve that carries pain signals from the facet joint capsule to the spinal cord. Under fluoroscopic (X-ray) guidance, a physiatrist or interventional pain management specialist positions a needle tip adjacent to the medial branch nerve at the target spinal level and injects a small volume of local anesthetic — typically lidocaine for the initial block. The patient then rates their pain relief over the following hours.

A result of 80% or greater pain relief is considered a diagnostic positive and confirms that the facet joint is the source of the patient’s pain at that level. To prevent false positives — which occur because the anesthetic can spread to adjacent structures — comparative blocks using two different anesthetics with different durations of action (typically lidocaine, which lasts 1-2 hours, and bupivacaine, which lasts 4-6 hours) are performed on separate occasions. A true facet joint pain source will produce pain relief that correlates with the expected duration of each anesthetic. This comparative block protocol is the standard recommended by the International Spine Intervention Society (ISIS) and is the clinical and legal standard for confirming the facet joint diagnosis.

New York courts have accepted positive diagnostic medial branch blocks as objective clinical evidence of facetogenic pain sufficient to satisfy the serious injury threshold under Insurance Law §5102(d) — even in the absence of MRI confirmation of structural facet joint pathology.

Treatment: Medial Branch Blocks, RFA, and Posterior Fusion

Treatment of confirmed facetogenic pain follows a stepped protocol:

Therapeutic medial branch blocks: After a diagnostic positive, therapeutic blocks using corticosteroid are performed to provide relief lasting weeks to months. These are typically administered in a series of up to three injections per level per year under no-fault insurance and health insurance coverage protocols.

Radiofrequency ablation (RFA) / radiofrequency neurotomy (RFN): When therapeutic blocks provide insufficient duration of relief, RFA is performed. A specialized electrode is positioned adjacent to the medial branch nerve under fluoroscopic guidance, and thermal energy (80-90 degrees Celsius for 60-90 seconds) interrupts the nerve’s ability to transmit pain signals. This effectively denervates the facet joint for 12 to 18 months, after which the nerve regenerates and the procedure may need to be repeated. Each RFA procedure typically costs $3,000 to $8,000 per spinal region and may need to be repeated every 12 to 18 months, creating significant future damages in cases involving younger plaintiffs.

Cervical facet intra-articular injection: Corticosteroid delivered directly into the facet joint space provides therapeutic relief and is distinct from the medial branch block. Intra-articular injection does not confirm the pain source the way a medial branch block does and should not be conflated with the diagnostic block procedure in medical records or legal argument.

Posterior fusion: In severe cases where RFA provides insufficient relief or the articular surfaces are significantly damaged, posterior spinal fusion at the affected levels may be considered. Fusion is a permanent surgical intervention and significantly increases the damages calculation in a facet joint injury case.

It is important to distinguish facet joint injections from epidural steroid injections (ESI). An ESI delivers corticosteroid into the epidural space and targets nerve root inflammation — it is the treatment for disc herniation and radiculopathy. A medial branch block targets the nerve innervating the facet joint capsule. These are distinct anatomical targets, distinct procedures, and distinct diagnoses. The distinction matters in litigation: a plaintiff whose treating physiatrist performs ESI rather than medial branch blocks does not have the diagnostic block record needed to confirm facetogenic pain.

New York’s Serious Injury Threshold and Facetogenic Pain

Facetogenic pain without imaging findings is the hardest category of Insurance Law §5102(d) claim to prove. The “permanent consequential limitation” and “significant limitation” categories both require objective medical evidence under Toure v. Avis Rent A Car System, 98 N.Y.2d 345 (2002). For facet joint cases, the objective evidence consists of:

Goniometric range-of-motion documentation: The treating physiatrist must measure and document range-of-motion deficits using a goniometer at successive examinations throughout the treatment course — not just at the beginning and end of treatment. Consistent, quantifiable deficits documented over time establish the objective clinical foundation required by Toure.

Positive diagnostic medial branch blocks: Properly documented blocks with 80% or greater pain relief, performed under fluoroscopic guidance with comparative anesthetic protocol, constitute objective clinical evidence that courts have accepted as satisfying the threshold.

Functional limitation documentation: The physiatrist must document the functional impact of the facetogenic pain at each visit — work restrictions, limitations in activities of daily living, and inability to perform occupational tasks. Employer records, activities of daily living assessments, and treating physician functional status examinations collectively establish that the limitation is “consequential” within the meaning of the statute.

Causation opinion: The treating physiatrist must opine, to a reasonable degree of medical certainty, that the facetogenic pain is causally related to the accident mechanism and represents a permanent or significant limitation of the cervical or lumbar spine.

IME doctors retained by insurance companies routinely argue that facetogenic pain is “purely subjective” and that without MRI confirmation, no objective injury exists. This argument fails under New York law when the treating physiatrist has properly built the evidentiary record described above. The plaintiff’s attorney must be prepared to present the medial branch block records, fluoroscopy documentation, and physiatrist opinions in admissible form — and to aggressively cross-examine the defense IME doctor on the peer-reviewed literature supporting medial branch block diagnosis and the financial relationship between the IME doctor and the insurance industry.

Damages in a Long Island Facet Joint Injury Case

The damages in a facet joint injury case from a car accident on Long Island include:

Past medical expenses: Emergency room, imaging (MRI, CT), physiatrist visits, diagnostic and therapeutic medial branch blocks, and RFA procedures already performed.

Future medical expenses: Projected cost of ongoing medial branch blocks and repeated RFA procedures every 12 to 18 months over the plaintiff’s remaining life expectancy. For a 40-year-old plaintiff requiring bilateral cervical RFA at $6,000 per procedure every 18 months, the projected future medical cost over 25 years exceeds $100,000 before accounting for medical inflation.

Lost wages: Income lost during treatment and recovery, including time missed for procedures and physical therapy.

Future lost earnings / earning capacity: Where the facetogenic pain produces permanent work restrictions or requires vocational retraining, a vocational expert and economist can project and quantify the long-term earning capacity loss.

Pain and suffering: Non-economic damages for the physical pain, reduced quality of life, and functional limitations resulting from the facetogenic pain. These damages are available only upon satisfaction of the §5102(d) serious injury threshold.

If you were injured in a car accident on Long Island and are experiencing neck or back pain that has not responded to physical therapy and has been attributed to facet joint involvement by your treating physician, contact our office for a free consultation. We handle facet joint injury cases throughout Nassau County, Suffolk County, and all of New York City. Visit our Long Island car accident lawyer page to learn more about our full practice.