Long Island Internal
Injury Lawyer

Medical Overview

What Are Internal Injuries in Car Accidents?

Internal injuries are damage to organs, blood vessels, and tissues that result from crash forces, even when the skin is intact. Unlike fractures, they are invisible from the outside — a victim may walk away feeling shaken, unaware that blood is pooling in their abdomen, only to be in hypovolemic shock hours later. This makes them among the most serious and legally significant injuries from car accidents on Long Island. The mechanism is blunt force trauma: crash energy transfers through the vehicle frame and seatbelt directly into the occupant’s body. Seatbelts transmit compressive force across the abdomen (the “seatbelt sign” bruise is a red flag for underlying organ injury); airbag deployment and steering wheel impact compress the chest and upper abdomen; door intrusion in side impacts directly damages the spleen and kidneys.

Head-on collisions and rollover accidents generate the highest deceleration forces and cause a disproportionate share of internal injuries — the forces routinely exceed the threshold required to cause solid organ lacerations, vascular injury, and pneumothorax.

Types of Internal Injuries From Car Accidents

Internal Bleeding: Hematoma and Hemorrhage

Internal bleeding is the hallmark of most serious crash-related organ injuries. A hematoma is a localized collection of blood outside blood vessels, often forming around an injured organ. A hemorrhage is active, ongoing bleeding into a body cavity. Free blood in the abdominal cavity (hemoperitoneum) is detectable by FAST ultrasound and CT scan and is a surgical emergency. Progressive blood loss without intervention leads to hypovolemic shock, organ failure, and death.

Spleen Laceration and Rupture

The spleen is the most commonly injured solid organ in blunt abdominal trauma. Located in the upper left abdomen beneath the left ribs, it is highly vascular and vulnerable to deceleration forces from any left-side impact or frontal crash with seatbelt engagement. Splenic injuries are graded I through V: Grade I and II (minor lacerations and subcapsular hematomas) may be managed non-operatively with monitoring; Grade III through V injuries (deep lacerations through major vessels, or shattered spleen) typically require emergency splenectomy — removal of the entire spleen. Splenectomy is permanent organ loss. Under New York Insurance Law §5102(d), permanent loss of a body organ is a qualifying serious injury category, making splenectomy cases among the legally strongest internal injury claims.

Liver Laceration

The liver occupies the right upper abdomen and is susceptible to injury in right-side impacts, frontal crashes, and seatbelt compression. Liver lacerations are graded I through VI. Higher-grade injuries involving hepatic veins require emergent surgery. Even successfully repaired liver injuries can result in delayed complications including bile leaks and abscesses requiring additional procedures.

Kidney Contusion and Laceration

The kidneys sit in the retroperitoneal space, partially protected by the lower ribs. Renal injuries range from minor contusions managed conservatively to lacerations involving the collecting system or renal vasculature requiring surgery or angioembolization. High-grade lacerations can result in urine extravasation, hematoma, and in severe cases, nephrectomy.

Pneumothorax and Hemothorax (Collapsed Lung)

A pneumothorax is air in the pleural space between the lung and chest wall, causing the lung to partially or fully collapse. In car accidents, pneumothorax typically results from rib fractures puncturing the lung or direct blunt chest trauma. A tension pneumothorax — in which air accumulates under pressure, compressing the heart and great vessels — is immediately life-threatening and requires emergency needle decompression. A hemothorax is blood in the pleural space, often from intercostal vessel laceration or lung parenchymal injury. Both conditions typically require chest tube placement and potentially thoracic surgical intervention.

Bowel Perforation, Aortic Injury, and Pelvic Fracture

Bowel perforation — a hole in the small or large intestine — results from seatbelt compression or direct abdominal impact and causes life-threatening peritonitis. It can be missed on initial FAST ultrasound and requires CT diagnosis and emergency surgery. Traumatic aortic injury is the most fatal internal crash injury: approximately 80% of aortic ruptures are immediately fatal. Survivors require emergency endovascular or open repair — this injury is most common in high-speed frontal and lateral impacts like those described on our Long Island car accident lawyer page. Pelvic fractures can disrupt iliac arteries and cause massive retroperitoneal hemorrhage requiring pelvic packing or angioembolization. Pancreatic injuries are frequently missed on initial imaging and may present days later with pancreatitis or fistula.

Why Internal Injuries Are So Dangerous

Internal injuries are dangerous precisely because they are invisible and delayed in presentation. Unlike fractures that announce themselves immediately, internal injuries may produce only mild symptoms for hours while blood loss progresses. Progressive blood loss and hypovolemic shock are the primary killers: the body compensates for blood loss of 15–30% through increased heart rate and vasoconstriction — maintaining near-normal blood pressure deceptively. When loss exceeds 30–40%, decompensation occurs rapidly: blood pressure drops precipitously, mental status deteriorates, and cardiac arrest approaches within minutes.

Emergency diagnostic tools include the FAST ultrasound, which detects free fluid (blood) in the abdominal cavity within minutes of arrival, and CT scanning of the chest, abdomen, and pelvis with contrast, which provides detailed imaging of specific organ injuries and active bleeding. Surgically, internal injuries often require emergency intervention within hours: ruptured spleens require splenectomy; high-grade liver lacerations require damage control surgery; aortic injuries require endovascular or open repair. Post-operative care involves the surgical ICU, serial imaging, and management of complications including infection, bile leak, and renal insufficiency.

Internal Injuries and New York’s Serious Injury Threshold

New York’s no-fault system requires proving a serious injury under Insurance Law §5102(d) to pursue non-economic damages against the at-fault driver. Internal injuries almost universally qualify under multiple categories: Permanent loss of use of a body organ — splenectomy and nephrectomy are explicit qualifying events. Permanent consequential limitation of use — permanent structural damage following liver laceration, kidney laceration, or pulmonary contusion qualifies with objective medical evidence. Significant limitation of use of a body function — respiratory compromise after pneumothorax, GI dysfunction after bowel resection, and chronic post-surgical limitation all qualify. 90/180-day disability — emergency abdominal surgery with an ICU stay almost always satisfies this category. Our firm documents every applicable category working directly with treating trauma surgeons. See our Long Island car accident lawyer page for more on no-fault and the threshold.

What Compensation Can Internal Injury Victims Recover?

Emergency surgery costs range from $50,000 to $500,000 or more. A splenectomy may cost $80,000–$150,000 in hospital charges; a complex liver repair or aortic procedure may exceed $300,000–$500,000 before accounting for the ICU stay. ICU stays run $5,000–$10,000 per day; a two-week SICU admission represents $70,000–$140,000. Blood transfusions and prolonged hospitalization add further costs. Total inpatient bills for serious internal injury cases routinely exceed $200,000–$600,000.

Permanent organ loss after splenectomy creates lifelong compensable medical consequences. After splenectomy, patients face permanent increased risk of overwhelming post-splenectomy infection (OPSI) — a rapidly fatal sepsis syndrome with 50–70% mortality — requiring lifelong vaccinations (pneumococcal, meningococcal, Hib) and in some cases prophylactic antibiotics. These ongoing needs are fully compensable as future medical damages. Lost wages during extended surgical recovery, future lost earning capacity, and pain and suffering from major surgery, ICU admission, and organ loss are all recoverable. When internal injuries are fatal, surviving family members pursue a wrongful death claim for loss of support, companionship, and pre-death conscious pain and suffering.

Proving Fault in Internal Injury Cases

Fault evidence begins with the police accident report (MV-104). VTL violations — VTL §1180 (speeding) and VTL §1141 (failure to yield) — establish negligence per se. EDR/black box data records speed, braking, and steering inputs in the seconds before impact and must be preserved immediately before vehicle repair overwrites it. Medical causation is established through trauma surgeon records, operative reports, radiology reads, and expert testimony on injury mechanism. Under CPLR §1411, your recovery is reduced proportionally by your fault percentage but you are never barred — our firm uses crash evidence to keep fault allocation accurate. Contact our Long Island car accident lawyers as soon as you are medically stable.

Statute of Limitations and Immediate Steps

Under CPLR §214, you have three years from the date of the car accident to file a personal injury lawsuit for internal injuries in New York. For wrongful death from fatal internal injuries, the deadline is two years from the date of death under EPTL §5-4.1. If the at-fault vehicle was a government-owned vehicle — a police car, MTA bus, LIRR vehicle, or other municipal or state vehicle — a Notice of Claim under GML §50-e must be filed within 90 days of the incident. Failure to file the Notice of Claim within 90 days is a jurisdictional bar to any claim against a government entity. This 90-day requirement frequently surprises accident victims who believe they have three years.

Do not wait for the deadline: surveillance footage is overwritten in 30 days, EDR data is lost when vehicles are repaired, and witnesses’ memories fade quickly. Early retention allows our firm to issue preservation demands, obtain the police report, and secure emergency medical records from the trauma center and ICU before evidence disappears. Do not provide a recorded statement to the at-fault driver’s insurer, sign any releases, or accept any early settlement offer — the full extent of your damages, including permanent organ loss and future medical needs, may not be apparent for weeks or months. Early offers in serious internal injury cases are almost always inadequate.