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An interesting 5102(d) case involving a knee surgery
5102(d) issues

An interesting 5102(d) case involving a knee surgery

By Jason Tenenbaum 8 min read

Key Takeaway

Expert analysis of Gilmonio v Toussaint 5102(d) case involving knee surgery. Learn how incomplete medical history can defeat serious injury threshold claims in NY.

This article is part of our ongoing 5102(d) issues coverage, with 287 published articles analyzing 5102(d) issues issues across New York State. Attorney Jason Tenenbaum brings 24+ years of hands-on experience to this analysis, drawing from his work on more than 1,000 appeals, over 100,000 no-fault cases, and recovery of over $100 million for clients throughout Nassau County, Suffolk County, Queens, Brooklyn, Manhattan, and the Bronx. For personalized legal advice about how these principles apply to your specific situation, contact our Long Island office at (516) 750-0595 for a free consultation.

Understanding 5102(d) Cases in New York Personal Injury Law

When it comes to personal injury cases in New York, the 5102(d) threshold plays a crucial role in determining whether an injured party can pursue a lawsuit for non-economic damages. This legal framework, established under New York Insurance Law § 5102(d), requires plaintiffs to demonstrate that their injuries fall within specific categories of “serious injury” to overcome the no-fault insurance system’s limitations on litigation.

For personal injury attorneys practicing in Long Island and New York City, understanding the nuances of 5102(d) cases is essential for effectively representing clients who have sustained significant injuries in motor vehicle accidents. The threshold requirement serves as a gatekeeper, separating minor injuries that remain within the no-fault system from serious injuries that warrant full tort recovery.

The Gilmonio v Toussaint Decision: A Critical Analysis

Gilmonio v Toussaint, 2010 NY Slip Op 50258(U)(App. Term 1st Dept. 2010).

An appellate court found that the a knee surgery was insufficient to defeat a threshold motion based upon a knee injury. The court found that the plaintiff’s expert’s opinion was inappropriate “since conclusions were premised on an incomplete history of plaintiff’s medical treatment”.

Read the case – it is quite interesting. Can you see the no-fault link?

The Significance of Complete Medical History in Expert Testimony

The Gilmonio decision highlights a fundamental principle in New York personal injury litigation: the critical importance of providing medical experts with complete and accurate medical histories. When a plaintiff’s expert testimony is based on incomplete information, it can undermine the entire case, regardless of the severity of the treatment received.

This case is particularly instructive because it demonstrates that even significant medical interventions, such as knee surgery, may not be sufficient to establish a prima facie case for serious injury if the supporting expert testimony is flawed. The court’s rejection of the expert’s opinion based on an “incomplete history” serves as a cautionary tale for attorneys who must ensure their medical experts have access to all relevant medical records and documentation.

The No-Fault Connection: Understanding the Broader Implications

The reference to the “no-fault link” in this case points to the interconnected nature of New York’s insurance laws. While 5102(d) cases involve tort litigation, they exist within the framework of New York’s no-fault insurance system, which was designed to provide prompt payment of medical expenses and lost wages regardless of fault, while limiting access to the tort system for less serious injuries.

In the context of knee injuries specifically, the courts have consistently required substantial objective evidence to support threshold claims. This includes not only the fact that surgery was performed, but also comprehensive documentation of the injury’s impact on the plaintiff’s daily activities, range of motion limitations, and long-term prognosis.

Strategic Considerations for Personal Injury Attorneys in Long Island and NYC

Building a Strong Foundation for Expert Testimony

The Gilmonio case underscores several critical strategies that personal injury attorneys must employ when handling 5102(d) threshold cases:

Complete Medical Record Collection: Before retaining any medical expert, attorneys must conduct a thorough investigation to identify and obtain all relevant medical records. This includes pre-accident medical history, emergency room records, diagnostic imaging, surgical reports, post-operative care documentation, and physical therapy records.

Expert Selection and Preparation: Choosing the right medical expert is crucial. The expert must not only be qualified in the relevant medical specialty but must also be thoroughly prepared with complete medical documentation. The Gilmonio case demonstrates that courts will scrutinize the foundation of expert opinions, particularly when dealing with surgical interventions that might otherwise seem to clearly establish serious injury.

Documentation of Functional Limitations: Beyond the medical records themselves, attorneys should work to document how the injury has affected their client’s daily life, work capacity, and recreational activities. This functional evidence can be crucial in supporting expert opinions about the permanency and significance of the injury.

Common Pitfalls in Knee Injury Cases

Knee injuries present unique challenges in 5102(d) litigation. Unlike some other types of injuries where objective findings may be more readily apparent, knee injuries often require careful analysis of multiple factors including range of motion testing, functional capacity evaluations, and long-term prognosis assessments.

The fact that the plaintiff in Gilmonio underwent surgery might initially suggest a clear case of serious injury. However, as the court’s decision demonstrates, the mere fact of surgical intervention is not necessarily dispositive if the expert testimony supporting the threshold claim is inadequately founded.

The Evolution of 5102(d) Jurisprudence in New York

The Gilmonio decision fits within the broader evolution of New York’s serious injury threshold jurisprudence. Over the years, New York courts have refined the standards for what constitutes adequate proof of serious injury, consistently emphasizing the need for objective medical evidence and properly founded expert testimony.

This case law development reflects the ongoing tension between the no-fault system’s goal of limiting litigation while ensuring that individuals with truly serious injuries retain access to full tort recovery. For practitioners in Long Island and New York City, staying current with these developments is essential for effective client representation.

Practical Applications for Current Practice

For personal injury attorneys handling motor vehicle accident cases, the lessons from Gilmonio v Toussaint have immediate practical applications:

Early Case Assessment: During the initial client interview and case evaluation process, attorneys should immediately begin identifying all potential sources of medical records and treatment history. This early preparation can prevent later problems with incomplete expert testimony.

Client Communication: Clients must understand the importance of providing complete and accurate medical histories. Sometimes clients may inadvertently omit relevant pre-accident conditions or treatment that could be crucial to the case development.

Expert Retention Strategy: When retaining medical experts, attorneys should provide a comprehensive medical chronology and ensure that experts understand the complete scope of the plaintiff’s medical history, both before and after the accident.

Frequently Asked Questions About 5102(d) Cases and Knee Injuries

What qualifies as a “serious injury” under New York Insurance Law § 5102(d)?

New York Insurance Law § 5102(d) defines serious injury as death; dismemberment; significant disfigurement; a fracture; loss of a fetus; permanent loss of use of a body organ, member, function or system; permanent consequential limitation of use of a body organ or member; significant limitation of use of a body function or system; or a medically determined injury or impairment of a non-permanent nature which prevents the injured person from performing substantially all of the material acts which constitute such person’s usual and customary daily activities for not less than ninety days during the one hundred eighty days immediately following the occurrence of the injury or impairment.

Can knee surgery alone establish the serious injury threshold?

While knee surgery may be evidence of serious injury, it is not automatically sufficient to meet the threshold requirement. As demonstrated in Gilmonio v Toussaint, courts will examine the underlying medical evidence and expert testimony. The surgery must be supported by proper medical documentation and expert analysis showing how the injury fits within one of the serious injury categories.

What happens if my expert’s opinion is based on incomplete medical records?

As shown in the Gilmonio case, expert testimony based on incomplete medical records may be deemed inappropriate or insufficient to establish a prima facie case. This can result in the dismissal of your case on a threshold motion, regardless of the severity of the injury or treatment received.

How can I ensure my expert has complete medical documentation?

Attorneys should conduct thorough discovery, subpoena all relevant medical records, and provide experts with a comprehensive medical chronology. This includes pre-accident medical history, all accident-related treatment records, and any subsequent medical care. It’s also important to verify with clients that all treating providers have been identified.

What role does pre-accident medical history play in 5102(d) cases?

Pre-accident medical history is crucial because it helps establish baseline function and can distinguish between accident-related injuries and pre-existing conditions. Courts require experts to consider the complete medical picture when forming opinions about causation and the extent of injury.

If you or a loved one has suffered a serious knee injury or other significant harm in a motor vehicle accident in Long Island or New York City, you need experienced legal representation that understands the complexities of New York’s serious injury threshold requirements. The attorneys at The Law Office of Jason Tenenbaum have extensive experience handling 5102(d) cases and know how to build strong cases that can withstand threshold challenges.

Don’t let inadequate legal preparation jeopardize your right to full compensation for your injuries. Our team understands the importance of complete medical documentation, proper expert testimony, and thorough case preparation. We work with qualified medical experts and conduct comprehensive investigations to ensure that your case is positioned for success.

Call us today at 516-750-0595 for a free consultation. We’ll review your case, explain your rights under New York law, and help you understand the best path forward for obtaining the compensation you deserve. With offices serving Long Island and New York City, we’re here to help you address the complex world of personal injury law and achieve the best possible outcome for your case.


Legal Update (February 2026): Since this 2010 post, New York’s no-fault regulations have undergone several amendments, including updates to the fee schedules under 11 NYCRR 65 and potential modifications to threshold determination standards under Insurance Law § 5102(d). Additionally, appellate decisions may have further refined the requirements for medical expert testimony in threshold cases. Practitioners should verify current regulatory provisions and recent case law developments when handling similar knee injury threshold matters.

Legal Context

Why This Matters for Your Case

New York law is among the most complex and nuanced in the country, with distinct procedural rules, substantive doctrines, and court systems that differ significantly from other jurisdictions. The Civil Practice Law and Rules (CPLR) governs every stage of civil litigation, from service of process through trial and appeal. The Appellate Division, Appellate Term, and Court of Appeals create a rich and ever-evolving body of case law that practitioners must follow.

Attorney Jason Tenenbaum has practiced across these areas for over 24 years, writing more than 1,000 appellate briefs and publishing over 2,353 legal articles that attorneys and clients rely on for guidance. The analysis in this article reflects real courtroom experience — from motion practice in Civil Court and Supreme Court to oral arguments before the Appellate Division — and a deep understanding of how New York courts actually apply the law in practice.

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Attorney Jason Tenenbaum

About the Author

Jason Tenenbaum, Esq.

Jason Tenenbaum is the founding attorney of the Law Office of Jason Tenenbaum, P.C., headquartered at 326 Walt Whitman Road, Suite C, Huntington Station, New York 11746. With over 24 years of experience since founding the firm in 2002, Jason has written more than 1,000 appeals, handled over 100,000 no-fault insurance cases, and recovered over $100 million for clients across Long Island, Nassau County, Suffolk County, Queens, Brooklyn, Manhattan, the Bronx, and Staten Island. He is one of the few attorneys in the state who both writes his own appellate briefs and tries his own cases.

Jason is admitted to practice in New York, New Jersey, Florida, Texas, Georgia, and Michigan state courts, as well as multiple federal courts. His 2,353+ published legal articles analyzing New York case law, procedural developments, and litigation strategy make him one of the most prolific legal commentators in the state. He earned his Juris Doctor from Syracuse University College of Law.

24+ years in practice 1,000+ appeals written 100K+ no-fault cases $100M+ recovered

Disclaimer: This article is published by the Law Office of Jason Tenenbaum, P.C. for informational and educational purposes only. It does not constitute legal advice, and no attorney-client relationship is formed by reading this content. The legal principles discussed may not apply to your specific situation, and the law may have changed since this article was last updated.

New York law varies by jurisdiction — court decisions in one Appellate Division department may not be followed in another, and local court rules in Nassau County Supreme Court differ from those in Suffolk County Supreme Court, Kings County Civil Court, or Queens County Supreme Court. The Appellate Division, Second Department (which covers Long Island, Brooklyn, Queens, and Staten Island) and the Appellate Term (which hears appeals from lower courts) each have distinct procedural requirements and precedents that affect litigation strategy.

If you need legal help with a 5102(d) issues matter, contact our office at (516) 750-0595 for a free consultation. We serve clients throughout Long Island (Huntington, Babylon, Islip, Brookhaven, Smithtown, Riverhead, Southampton, East Hampton), Nassau County (Hempstead, Garden City, Mineola, Great Neck, Manhasset, Freeport, Long Beach, Rockville Centre, Valley Stream, Westbury, Hicksville, Massapequa), Suffolk County (Hauppauge, Deer Park, Bay Shore, Central Islip, Patchogue, Brentwood), Queens, Brooklyn, Manhattan, the Bronx, Staten Island, and Westchester County. Prior results do not guarantee a similar outcome.

Jason Tenenbaum, Personal Injury Attorney serving Long Island, Nassau County and Suffolk County

About the Author

Jason Tenenbaum

Jason Tenenbaum is a personal injury attorney serving Long Island, Nassau & Suffolk Counties, and New York City. Admitted to practice in NY, NJ, FL, TX, GA, MI, and Federal courts, Jason is one of the few attorneys who writes his own appeals and tries his own cases. Since 2002, he has authored over 2,353 articles on no-fault insurance law, personal injury, and employment law — a resource other attorneys rely on to stay current on New York appellate decisions.

Education
Syracuse University College of Law
Experience
24+ Years
Articles
2,353+ Published
Licensed In
7 States + Federal

Discussion

Comments (2)

Archived from the original blog discussion.

DM
David M. Gottlieb
Check out Byong Yol Yi v Canela, 2010 NY Slip Op 01580 (App. Div., 1st, 2010): Plaintiff did not rely solely on MRIs showing bulging and herniated discs, as his doctor also performed straight-leg raising tests, which constitute “objective evidence of serious injury” (Brown v Achy, 9 AD3d 30, 32 [2004]).
J
JT Author
They have said that before. I find it interesting how a completely subjective test can be deemed objective. I think, and do not quote me on this, but New Jersey Courts that have evaluated threshold issues (to the extent DiProspero has not eviscerated threshold in New Jersey) have considered SLR testing to be subjective.

Legal Resources

Understanding New York 5102(d) issues Law

New York has a unique legal landscape that affects how 5102(d) issues cases are litigated and resolved. The state's court system includes the Civil Court (for claims up to $25,000), the Supreme Court (the primary trial court for unlimited jurisdiction), the Appellate Term (which hears appeals from lower courts), the Appellate Division (divided into four Departments, with the Second Department covering Long Island, Brooklyn, Queens, Staten Island, and several upstate counties), and the Court of Appeals (the state's highest court). Each court has its own procedural requirements, local rules, and case-assignment practices that can significantly impact the outcome of your case.

For 5102(d) issues matters on Long Island, cases are typically filed in Nassau County Supreme Court (at the courthouse in Mineola) or Suffolk County Supreme Court (in Riverhead). No-fault arbitrations are heard through the American Arbitration Association, which assigns arbitrators throughout the metropolitan area. Workers' compensation claims go to the Workers' Compensation Board, with hearings at district offices across the state. Understanding which forum is appropriate for your case — and the specific procedural rules that apply — is essential for a successful outcome.

The procedural landscape in New York also includes important timing requirements that can affect your case. Most civil actions are subject to statutes of limitations ranging from one year (for intentional torts and claims against municipalities) to six years (for contract actions). Personal injury cases generally have a three-year deadline under CPLR 214(5), while medical malpractice claims must be filed within two and a half years under CPLR 214-a. No-fault insurance claims have their own regulatory deadlines, including 30-day filing requirements for applications and 45-day deadlines for provider claims. Understanding and complying with these deadlines is critical — missing a filing deadline can permanently bar your claim, regardless of how strong your case may be on the merits.

Attorney Jason Tenenbaum regularly practices in all of these venues. His office at 326 Walt Whitman Road, Suite C, Huntington Station, NY 11746, is centrally located on Long Island, providing convenient access to courts and offices throughout Nassau County, Suffolk County, and New York City. Whether you need representation in a no-fault arbitration, a personal injury trial, an employment discrimination hearing, or an appeal to the Appellate Division, the Law Office of Jason Tenenbaum, P.C. brings $24+ years of real courtroom experience to your case. If you have questions about the legal issues discussed in this article, call (516) 750-0595 for a free, no-obligation consultation.

New York's substantive law also presents distinct challenges. In motor vehicle cases, the no-fault system under Insurance Law Article 51 provides first-party benefits regardless of fault, but limits the right to sue for non-economic damages unless the plaintiff establishes a "serious injury" under one of nine statutory categories. This threshold — codified at Insurance Law Section 5102(d) — requires medical evidence showing more than a minor or subjective injury, and courts have developed detailed standards for each category. Fractures must be documented through imaging studies. Claims of permanent consequential limitation or significant limitation of use require quantified range-of-motion testing with comparison to norms. The 90/180-day category demands proof that the plaintiff was unable to perform substantially all of their usual daily activities for at least 90 of the 180 days following the accident.

In employment discrimination cases, the legal standards vary depending on whether the claim arises under state or local law. The New York State Human Rights Law employs a burden-shifting framework: the plaintiff must first establish a prima facie case by showing membership in a protected class, qualification for the position, an adverse employment action, and circumstances giving rise to an inference of discrimination. The burden then shifts to the employer to articulate a legitimate, non-discriminatory reason for its decision. If the employer meets this burden, the plaintiff must demonstrate that the stated reason is pretextual. The New York City Human Rights Law, by contrast, applies a broader standard, asking whether the plaintiff was treated less well than other employees because of a protected characteristic.

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