Tag: minor accident

Louisiana Court Limits Use of Biomechanical Expert Testimony

The use of biomechanical expert testimony in Louisiana courts has evolved over the last few years. A recent decision from the Louisiana Fifth Circuit Court of Appeal provides an example of the changing standards for the admissibility of biomechanical expert testimony and its relation to medical causation.

In Pollard v. 21st Century Centennial Ins. Co., 21-65 (La. App. 5 Cir. 12/23/21), 334 So. 3d 1013, writ denied, 2022-00163 (La. 4/20/22), the defendants argued that the underlying accident involved a minor rear-end impact not likely to cause injury. The defendants hired a biomechanical expert who was also a medical doctor. The expert performed an “impact severity analysis” to determine the force of impact in the collision.

The expert concluded that the accident involved a minimum damage collision; he relied upon the “force reflection method” and test data at his crash test facility to determine how fast the rear-ending vehicle would have traveled to cause the damage present on the plaintiff’s vehicle. Based upon his findings, the expert opined that the plaintiff was not seriously injured in the collision. He went further to testify that specific injuries could not have been caused by the forces involved.

The Fifth Circuit noted the same expert was previously excluded in a case that went to the Louisiana Supreme Court in Blair v. Coney, 2019-00795 (La. 4/3/20), reh’g denied, 2019-00795 (La. 7/9/20), 298 So. 3d 168, where the Court found the expert’s testimony to be based upon insufficient facts or data. In Blair, the Supreme Court found the expert’s testimony should be excluded because he did not (1) inspect either vehicle involved in the collision; (2) speak with the damage appraisers; (3) know the plaintiff’s body position at the time of the accident; (4) inspect plaintiff’s vehicle for variance from the test-vehicle or (5) interview the plaintiff.  Thus, his testimony failed to meet the requirements of C.E. art. 702(A)(2). 

Citing the Blair decision, the Louisiana Fifth Circuit in Pollard concluded that the expert “relied on the same [improper] methodology in reaching his conclusions.” Therefore, the appellate court found the trial court erred in denying a motion in limine to exclude the expert’s testimony. Although the expert cited to peer-reviewed literature to support his conclusions, the evidence revealed that “most of the research and articles” he cited were either written by him or one of his employees.

Effective January 1, 2021, Louisiana amended La. R.S. 32.295.1, which now allows the admission of a plaintiff’s failure to wear a seat belt as a factor to be considered in comparative fault. Defendants will seek to use biomechanical experts to prove that the failure to use a seatbelt substantially caused or contributed to the damages.

Biomechanical testimony may be allowed. However, as shown in Pollard, biomechanical opinions which lack sufficient inquiry to match the analysis to the real-world impact will be treated with skepticism. Taking Blair and Pollard together, the courts appear to resist expert biomechanical opinions which seek to definitively resolve medical causation which often involves subjective elements and credibility determinations reserved for the trier of fact.

It is certain that defendants will continue to advance the “low impact” argument because force-of-impact testimony is a relevant factor in determining causation or extent of injuries. See, e.g., Merrells v. State Farm Mutual Auto, Ins. Co., 33-404 (La. App. 2 Cir. 6/21/00), 764 So. 2d 1182. What is less than certain is the role of the biomechanical expert. Following the Fifth Circuit’s decision in Pollard, the Louisiana Supreme court denied the defendant’s writ application 4 to 3, with all three dissenters advising they would have granted the writ. Issues surrounding the use and scope of testimony from biomechanical experts appear far from settled.

Minimal Force of an Impact Matters in Car Accident Litigation

For years, Louisiana plaintiffs attorneys have argued that the force of impact in an auto accident is not determinative of their clients’ injuries and should be afforded little, if any, weight. A recent decision out of the Louisiana First Circuit Court of Appeal does damage to that argument. In Jones v. Bravata, Jr. and The City of Baton Rouge, 2018 CA 0837 (La. App. 1 Cir. 5/9/19), the First Circuit upheld the trial court’s jury instruction on “force of impact” where photographs showed only minor damage and the defendant described the accident as a “bump.”

The accident occurred when a City employee rear-ended the plaintiffs’ vehicle. Liability was stipulated and the only question at trial was damages. Mrs. Jones alleged severe neck and back injuries. She began treatment with an orthopedist within a week of the accident and thereafter received five “relatively non-invasive surgical procedures” in lieu of a lumbar fusion surgery. The jury returned a verdict of $200,000, which included $150,000 in past medical expenses and $35,000 in future medical expenses, but awarded little for general damages. Mrs. Jones appealed the verdict, asserting that the trial court erred in instructing the jury on force of impact.

The “force of impact” jury instruction in dispute provided:

While the force of a collision may be considered in determining whether a person was injured by an accident and the extent of the injuries sustained, it should not be the only factor to consider in making such a determination. Even though the force of impact may be slight, it does not preclude an award of damages. However, in determining causation, you may consider the minimal nature of the accident.

In considering the plaintiff’s assignment of error, the First Circuit noted that Mrs. Jones was correct that no witness specifically testified that the accident was too minor to have caused her injuries. However, there was evidence in the record upon which the jury could have reached the conclusion that this was a minimal impact.

Common sense would appear to support a connection between the force of an impact and the injury one could be expected to suffer. The recent Jones decision allows defendants to promote this common sense argument. Where the claimed injuries are disproportionate to the forces involved, this argument can make the difference at trial.

John Grinton is a partner of the firm admitted in state, federal and appellate courts throughout Louisiana.  His practice focuses on commercial and construction litigation, representing insurance companies, architects, engineers, contractors and other businesses in all aspects of litigation.  His workers’ compensation practice includes representing clients in medical billing disputes, healthcare provider disputes, statutory/borrowing/special employer disputes, and court approved settlements. John has been involved in complex cases involving construction defect claims, breach of contract and negligence actions, insurance coverage issues, lender liability, securities litigation and personal injury matters. He has firsthand experience in jury trials and arbitration’s, as well as mediation, appellate briefing and oral argument.