NY Serious Injury Threshold: Does a Knee Injury Qualify? (2026)

A torn meniscus or other significant knee injury can qualify as a serious injury after a New York car accident. Still, the diagnosis alone does not automatically satisfy New York’s serious-injury threshold. For motor vehicle personal injury actions governed by Insurance Law Article 51, medical evidence must show that the knee injury falls within one of the serious-injury categories under Insurance Law § 5102(d). Depending on the nature and severity of the injury, a torn meniscus, ligament tear, cartilage injury, or other traumatic knee condition may support a claim based on significant limitation of use or, with evidence of permanence, permanent consequential limitation of use.

Knee injuries can substantially interfere with walking, standing, climbing stairs, kneeling, squatting, exercising, working, driving, and performing ordinary activities. Yet insurance companies may argue that a meniscus tear or other abnormality shown on an MRI is degenerative, existed before the collision, or does not produce a sufficiently significant functional limitation. A serious-injury claim therefore should not depend solely on an MRI report. The medical evidence may include measured restrictions in knee movement, orthopedic examinations, instability, weakness, swelling, positive clinical testing, injections, physical therapy, arthroscopic findings, surgical repair, and physician opinions addressing causation and prognosis.

These issues have become especially important since New York changed its serious-injury law in 2026. For actions and proceedings commenced on or after May 26, 2026, the former 90/180-day category has been eliminated. A person with a knee injury must instead establish one of the eight serious-injury categories that remain under § 5102(d). If you suffered a torn meniscus, ligament tear, cartilage injury, or other serious knee injury in a New York motor vehicle accident, call Greenstein & Pittari, LLP at 1-800-VICTIM2 (1-800-842-8462) for a free consultation. No fee unless successful.

Can a torn meniscus meet New York’s serious injury threshold?

Yes. A torn meniscus can potentially satisfy New York’s serious-injury threshold when the tear and resulting functional impairment meet one of the categories contained in Insurance Law § 5102(d). A meniscus tear itself is not a separately enumerated serious-injury category like a fracture. The medical evidence therefore generally must establish that the injury produces a qualifying limitation, such as a significant limitation of use of a body function or system or, when supported by evidence of permanence, a permanent consequential limitation of use of a body organ or member. The MRI, orthopedic examinations, measured restrictions, instability, weakness, treatment history, surgical findings (where applicable), prognosis, and medical evidence connecting the condition to the accident can all be important.

Is an MRI showing a torn meniscus enough to prove serious injury?

An MRI can provide important objective evidence that a meniscus tear exists, but the serious-injury analysis generally requires more than identifying an abnormality on imaging. The medical evidence should address what the tear actually does to knee function. A physician may document restricted flexion or extension, swelling, instability, weakness, positive orthopedic testing, difficulty bearing weight, altered gait, or other clinical abnormalities. The evidence should connect the structural condition shown on imaging with a meaningful functional limitation. The defense may also challenge whether the tear is traumatic or degenerative, making causation a separate and important part of the case.

What is a torn meniscus?

The menisci are structures within the knee that help distribute load and contribute to stability and normal joint function. Trauma can tear a meniscus, and symptoms may include pain, swelling, clicking, catching, locking, difficulty bending or straightening the knee, and problems with walking, squatting, pivoting, or climbing stairs. Meniscal tears occur in different types and locations, and their medical significance varies. For purposes of New York’s serious-injury law, the important question is not simply whether an MRI uses the word “tear,” but whether the condition and its resulting limitations satisfy one of the statutory serious-injury categories.

What other knee injuries can qualify as serious injuries in New York?

A motor vehicle accident can produce numerous knee injuries in addition to a torn meniscus, including ACL, PCL, MCL, or LCL injuries, cartilage damage, patellar injuries, traumatic chondral defects, tendon injuries, fractures, instability, and other structural damage. § 5102 (d) expressly includes fractures as a serious injury. Other knee conditions generally require analysis under another applicable category, such as significant limitation or permanent consequential limitation. Evaluate the diagnosis, objective findings, degree of functional impairment, treatment, prognosis, and causation individually, rather than assuming every knee injury automatically qualifies or automatically fails the threshold.

What serious injury category usually applies to a torn meniscus?

The significant-limitation and permanent-consequential-limitation categories can be particularly important in meniscus and other soft-tissue knee injury cases. Insurance Law § 5102(d) recognizes a significant limitation of use of a body function or system and a permanent consequential limitation of use of a body organ or member. A knee injury that substantially restricts bending, walking, weight bearing, stability, or other important functions may potentially support the significant-limitation category. If the medical evidence demonstrates a lasting consequential impairment and supports permanence, the permanent-consequential-limitation category may also apply. The medical evidence, not automatic characterization, should determine the appropriate category.

Does a torn meniscus have to be permanent under the new 2026 law?

No. The 2026 amendment did not require every serious injury to be permanent. Insurance Law § 5102(d) still recognizes significant limitation of use of a body function or system without expressly requiring permanence. The statute separately recognizes permanent consequential limitation and permanent loss of use, which expressly require permanence. A person with a torn meniscus therefore may potentially establish serious injury through a significant limitation even when the evidence does not support a permanent-injury category. The limitation must still be medically significant rather than minor, and the evidence should establish its nature and degree.

How did eliminating the 90/180-day category affect knee injury cases?

The 2026 reform removed a former avenue for establishing serious injury. Before the amendment, a claimant could potentially rely on a medically determined nonpermanent injury or impairment that prevented substantially all usual and customary daily activities for at least 90 of the first 180 days after the injury. For actions and proceedings commenced on or after May 26, 2026, that category is no longer included in § 5102(d). A claimant who could not work, walk normally, exercise, drive, climb stairs, or perform ordinary activities for several months because of a knee injury must now establish one of the eight remaining serious-injury categories. Those restrictions can still be important evidence of functional impact and damages, but they no longer constitute an independent 90/180 category.

How can range-of-motion testing help prove a serious knee injury?

Range-of-motion testing can objectively document how much a knee injury restricts normal movement. A physician may measure knee flexion and extension and compare those measurements with normal values. Substantial restrictions documented over time can help demonstrate that an MRI-confirmed meniscus or ligament injury has meaningful functional consequences. New York courts evaluate whether the limitation is significant or consequential based on the medical significance and degree or qualitative nature of the impairment compared with normal function, purpose, and use. Range-of-motion evidence should therefore be considered together with imaging, orthopedic findings, instability, strength, gait, treatment, surgical findings where applicable, prognosis, and causation.

Does knee instability help establish serious injury?

Knee instability can be important evidence when it is objectively documented and medically connected to the injury. Ligament damage or other structural pathology may cause the knee to buckle, give way, or feel unstable during walking, turning, climbing stairs, or other activities. Orthopedic testing may evaluate ACL, PCL, MCL, LCL, meniscus, patella, and other structures. Instability alone does not automatically satisfy the serious-injury threshold. Still, it can help demonstrate the functional consequences of a traumatic knee injury when supported by clinical findings, imaging, treatment records, and medical opinions.

Can an ACL tear qualify as a serious injury in New York?

Yes. An ACL tear can potentially qualify as a serious injury when the resulting impairment satisfies one of the statutory categories under § 5102(d). ACL injuries may produce instability, weakness, swelling, restricted motion, difficulty pivoting or changing direction, and limitations in walking, running, climbing stairs, exercising, or performing occupational duties. Some ACL tears require reconstructive surgery, while others may be managed differently depending on the patient and injury. Surgery is not itself required to satisfy the threshold. The medical evidence should establish the extent of the injury, its functional consequences, causation, and the statutory category being claimed.

Can an MCL or other ligament tear qualify as a serious injury?

Potentially, yes. MCL, PCL, LCL, and other ligament injuries can cause significant functional impairment, depending on severity. A ligament tear may affect stability, range of motion, strength, weight bearing, and the ability to walk, turn, squat, climb, or perform physical work. The statutory analysis does not turn solely on the ligament’s name or whether an MRI labels the injury a sprain, partial tear, or complete tear. The relevant inquiry is whether the medical evidence establishes a qualifying serious injury and connects that impairment to the accident.

Can cartilage damage qualify as a serious knee injury?

Yes, depending on the medical evidence and resulting limitation. Trauma can damage articular cartilage or produce chondral defects that interfere with smooth knee movement and may contribute to pain, swelling, crepitus, catching, or functional restriction. Cartilage damage can also coexist with meniscus tears, ligament injuries, or other knee pathology. MRI findings, arthroscopic observations, clinical examinations, range-of-motion restrictions, treatment history, and prognosis may all become relevant. As with a meniscus tear, cartilage damage is not automatically a serious injury merely because it appears on imaging. The evidence must establish a statutory category and the condition’s functional consequences.

Do I need knee surgery to meet New York’s serious injury threshold?

No. Surgery is not a requirement under Insurance Law § 5102(d). A claimant can potentially establish a significant limitation or another applicable category through sufficient medical evidence even when the knee is treated conservatively. Some meniscus, ligament, and cartilage injuries may be managed with physical therapy, bracing, medication, injections, activity modification, or other nonsurgical care. If an injury nevertheless produces objectively documented significant limitations, the absence of surgery does not automatically defeat the claim. The patient’s physicians should determine medical treatment based on medical need rather than undertaken to strengthen a lawsuit.

Does arthroscopic knee surgery automatically establish serious injury?

No. Arthroscopic surgery can provide strong evidence of the nature and severity of a knee injury. Still, surgery itself does not automatically place a knee injury in a serious-injury category under § 5102(d). During arthroscopy, the surgeon may directly observe a meniscus tear, cartilage damage, synovitis, ligament pathology, or other abnormalities and may repair, trim, debride, or otherwise treat the damaged structures. Those operative findings can become important evidence. The case must still establish the applicable statutory category and causation. The defense may contend that the surgery addressed degenerative rather than traumatic pathology, making the operative report, preoperative imaging, clinical history, and surgeon’s causation opinion particularly important.

What is a meniscectomy, and does having one make my injury serious?

A meniscectomy is a surgical procedure in which a surgeon removes damaged meniscal tissue, often arthroscopically. Depending on the tear, a surgeon may perform a partial meniscectomy rather than remove the entire meniscus. The fact that a meniscectomy was medically necessary can be significant evidence of the nature of the knee condition, but the procedure does not automatically satisfy the statutory threshold. The medical evidence should establish why surgery was required, what the surgeon observed, what was removed or repaired, how the knee functioned before and after surgery, whether significant limitations remain, and whether the accident caused or aggravated the condition requiring surgery.

What if my torn meniscus was surgically repaired?

A meniscus repair can provide strong evidence of a structural knee injury, especially when the operative findings confirm the tear and the surgeon links it to the accident. Recovery from repair may involve restricted weight bearing, bracing, physical therapy, and a gradual return to activity. The post-surgical course can help document the injury’s functional consequences. Nevertheless, a surgical repair does not eliminate the need to establish a statutory serious-injury category or medical causation. Evaluate operative findings, rehabilitation, residual restrictions, prognosis, and the treating surgeon’s opinions as part of the complete case.

Can physical therapy help establish a serious knee injury?

Physical therapy records can help demonstrate how a knee injury affects function over time. Therapists may document reduced flexion or extension, weakness, swelling, altered gait, difficulty bearing weight, problems with stairs, instability, and limitations performing exercises. Therapy can also document whether the condition improves, plateaus, or continues to produce restrictions despite treatment. Attendance at therapy alone does not establish serious injury, however. Evaluate the treatment history alongside diagnostic imaging, physician examinations, objective measurements, surgical findings (where applicable), causation evidence, and the statutory category being claimed.

Do knee injections help establish a serious injury?

Knee injections can become part of the treatment evidence when symptoms persist despite more conservative measures. Depending on the condition and medical judgment, physicians may recommend injections to address inflammation, pain, or other symptoms. The fact that an injection was performed does not automatically establish a serious injury. The medical record should identify the condition being treated, why the procedure was recommended, whether the patient obtained relief, and what functional limitations remained. A progression from therapy to injections and potentially surgery can help document the course of an injury, but the statutory threshold ultimately depends on the medical evidence establishing a qualifying serious injury.

What if my MRI says the meniscus tear is degenerative?

A degenerative finding can create a causation dispute, but it does not automatically establish that the accident caused no knee injury. Meniscal and cartilage abnormalities can develop over time, particularly as a person ages, and imaging may identify degenerative changes even when the person had no significant knee symptoms before the collision. The medical issue may be whether the accident caused a new traumatic tear, aggravated an existing condition, made a previously asymptomatic condition symptomatic, or produced additional functional impairment. Prior medical records, earlier imaging, pre-accident symptoms and activity levels, post-accident examinations, operative findings, and a physician’s reasoned causation opinion can all become important.

How can doctors tell whether a meniscus tear was traumatic or degenerative?

No single fact resolves every causation dispute. Physicians may consider the mechanism of injury, the tear’s appearance and location on imaging, the patient’s age and medical history, whether symptoms began after the collision, prior knee complaints or treatment, physical examination findings, and what is observed during surgery. A surgeon who directly visualizes the knee may also describe the pathology encountered during arthroscopy. The medical opinion should address relevant degenerative findings rather than ignore them. In litigation, the defense may present a competing interpretation, making a well-supported causation analysis especially important.

Can I recover if I already had arthritis in my knee?

Preexisting arthritis does not automatically prevent a personal injury claim. An accident can potentially cause a separate traumatic injury or aggravate a preexisting arthritic condition. The relevant question is what changed because of the collision. A person may have radiographic arthritis while functioning normally before an accident and develop substantial pain, swelling, restricted movement, or the need for treatment afterward. Prior medical records, earlier imaging, pre-accident activity, post-accident findings, and physician opinions can help distinguish the underlying condition from the injury or aggravation attributed to the collision.

What if I injured the same knee before the car accident?

A prior injury to the same knee can complicate causation, but it does not automatically defeat the claim. The defense may compare prior MRIs, surgeries, injections, therapy, complaints, and functional limitations with the condition following the new accident. Evidence that the claimant recovered, returned to normal activities, stopped treating, or developed new structural findings after the later collision may become important. The medical evidence should address the prior condition directly and explain, where medically supportable, whether the new accident caused an additional injury or aggravated the existing condition.

What if I had no knee problems before the accident?

The absence of prior knee symptoms or treatment can be important evidence when the defense argues that an MRI abnormality is degenerative. A claimant who walked, exercised, worked, climbed stairs, and performed ordinary activities without knee complaints before the collision but developed significant symptoms and restrictions afterward may have evidence supporting causation. However, symptom timing alone does not conclusively establish that every MRI finding was caused by the accident. Medical evidence should explain the relationship between the trauma, diagnostic findings, clinical examination, and resulting impairment.

Can difficulty walking or climbing stairs help prove serious injury?

Yes, those limitations can help demonstrate the real-world consequences of a knee injury. A torn meniscus or ligament injury may interfere with walking long distances, standing, climbing or descending stairs, kneeling, squatting, running, exercising, or getting in and out of a vehicle. Those restrictions are relevant to understanding the functional impact of the condition and damages. Under the amended serious-injury law, however, difficulty performing activities does not by itself replace the need to establish one of the eight remaining statutory categories. The strongest presentation connects those limitations with objective medical findings and a qualifying significant or permanent limitation.

Does limping help prove a serious knee injury?

An altered gait or limp can be relevant when medical professionals observe and document it, and it is consistent with the diagnosed knee condition. A claimant may change the way they walk because of pain, weakness, instability, restricted movement, or difficulty bearing weight. A documented abnormal gait can therefore form part of the evidence showing functional impairment. It should be considered alongside objective findings such as imaging, range-of-motion measurements, swelling, instability testing, strength deficits, surgical findings, and the overall treatment history, rather than treated as conclusive on its own.

Does returning to work mean my knee injury is not serious?

No. A person can return to work while still experiencing significant knee limitations. Some people return because of financial necessity, work with restrictions, avoid particular duties, receive assistance, or tolerate symptoms to remain employed. The significant-limitation category under current § 5102(d) does not require the claimant to prove an inability to work for a specified period. Work restrictions and lost earnings can still matter for damages, but the serious-injury determination focuses on whether the medical evidence establishes one of the statutory categories.

What if I never missed work because of my knee injury?

Not missing work does not automatically prevent a serious-injury claim. The former 90/180-day category has been eliminated for actions governed by the 2026 amendment, and the current significant-limitation category does not depend on missing a particular number of workdays. A claimant may remain employed despite objectively documented restrictions in knee motion, stability, strength, walking, or other functions. Conversely, simply missing work does not establish serious injury without supporting medical evidence. The focus should remain on the actual injury and the statutory category being asserted.

Can a gap in treatment hurt my knee injury claim?

Yes. A significant unexplained cessation of treatment can become a defense issue, particularly when the claimant alleges continuing significant or permanent limitations. There may be legitimate explanations for stopping treatment, including denial of No-Fault benefits, a physician determining that additional therapy would provide no further improvement, transition to a home-exercise program, surgery, or another medically supported reason. A claimant is not required to undergo unnecessary treatment indefinitely. Still, the treatment history should be accurately documented so that a legitimate cessation is not later portrayed as evidence that the injury resolved.

Can the defense argue that my knee injury healed?

Yes. A defense medical examiner may measure knee range of motion, test stability and strength, review the MRI and surgical records, and conclude that the knee has normal function or that any accident-related injury has resolved. The examiner may also characterize MRI abnormalities as degenerative rather than traumatic. Plaintiff’s medical evidence may reach different conclusions based on measured restrictions, continuing symptoms, instability, surgical findings, or prognosis. Serious-injury litigation often involves these competing medical opinions, which is why objective documentation throughout the treatment course can matter.

What happens if the defendant moves to dismiss my knee injury for lack of serious injury?

A defendant may seek summary judgment by arguing that the knee condition does not constitute a serious injury or was not caused by the collision. Depending on the defendant’s evidence, the plaintiff may need to submit competent, objective medical evidence to create a factual issue as to the existence of a qualifying injury, causation, or both. New York courts distinguish between proving that an injury is sufficiently serious and proving that the accident caused it. A medical record that documents the diagnosis but contains no meaningful opinion connecting the knee condition to the collision can therefore create substantial problems for the claim.

Does proving a torn meniscus mean the other driver is liable?

No. Medical proof of a serious knee injury does not establish who caused the collision. Liability and serious injury are separate issues. Under New York’s 2026 reforms, fault has become particularly important because CPLR § 1411(b) can bar recovery in an Article 51 personal injury action when the claimant’s culpable conduct is greater than the culpable conduct of the person against whom recovery is sought or greater than the combined culpable conduct of the persons against whom recovery is sought. A strong knee injury case therefore requires careful development of both the medical evidence and the evidence showing how the accident occurred.

Does knee surgery determine how much my car accident case is worth?

No. Knee surgery can significantly affect the evaluation of a personal injury case, but no fixed dollar amount attaches to a meniscus repair, meniscectomy, ACL reconstruction, or other procedure. Case value depends on the complete circumstances, including the type and severity of the injury, treatment, surgical findings, recovery, residual limitations, prognosis, lost earnings, medical expenses, pain and suffering, liability, comparative fault, causation, prior knee conditions, and available insurance coverage. Two people with similar MRI diagnoses, or even similar operations, may have substantially different cases because their outcomes, limitations, liability facts, and insurance coverage differ.

Why Choose Greenstein & Pittari, LLP?

Meniscus tears and other knee injuries can become heavily contested motor vehicle claims because insurance companies may acknowledge an MRI abnormality while disputing whether the accident caused it or whether it produces a sufficiently significant limitation under New York law. A defense may characterize the tear as degenerative, point to preexisting arthritis or an earlier knee injury, rely on a treatment gap, or obtain a medical examination claiming that the knee has returned to normal function. Under the 2026 serious-injury law, these issues must be evaluated under one of the eight remaining statutory categories.

Greenstein & Pittari, LLP has decades of experience representing people with serious knee injuries throughout New York. Our attorneys examine MRI and other diagnostic findings, orthopedic examinations, quantified range-of-motion testing, stability and strength findings, physical therapy records, injections, surgical recommendations, operative reports, postoperative rehabilitation, prior medical records, and physician opinions concerning causation and prognosis. When arthroscopic surgery is performed, we examine what the surgeon actually observed and treated rather than relying solely on the name of the procedure.

We also investigate the accident itself from the beginning. Our attorneys work to preserve surveillance, dashcam, and other electronic evidence; obtain relevant accident records; identify witnesses and potentially responsible parties; and investigate all applicable primary, excess, umbrella, UM, and SUM insurance coverage. New York’s 2026 automobile reforms make this combined approach especially important because establishing a qualifying knee injury does not replace the need to establish liability and address comparative fault.

Greenstein & Pittari, LLP represents injured people throughout Manhattan, Brooklyn, Queens, the Bronx, Staten Island, Westchester, Long Island, and throughout New York. Our attorneys and English- and Spanish-speaking staff provide personalized attention while preparing serious knee injury cases for aggressive litigation when necessary.

Don’t Be a Victim Twice. If you suffered a torn meniscus, ligament tear, cartilage injury, or other serious knee injury in a New York motor vehicle accident, call Greenstein & Pittari, LLP at 1-800-VICTIM2 (1-800-842-8462) for a free consultation. No fee unless successful.