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Louisiana Court Limits Use of Biomechanical Expert Testimony

Published on: June 7, 2022

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.

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What to do if your Home or Business is Damaged by Flood or Storm

Unfortunately, recent flooding and storm events have again affected our area in Louisiana. Many people experienced flooding and storm damage to their homes and businesses. If you experienced flood or storm damage, please consider following these steps to ensure your damage claim is properly documented and submitted:

  • DOCUMENT, DOCUMENT, DOCUMENT - Once you are able, make sure to document the damages to your home and contents. Whether for a homeowners or flood insurance policy or to obtain government assistance, take plenty of photos and video of the damage. Make a list of the items that were damaged or destroyed. One way to organize this list is to group items from each room together, approximate its age, where it was purchased, and its value when purchased. It will be more difficult to document your claim once the cleanup or rebuilding begins.
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When It Comes to Real Estate, Get It In Writing

As the old adage goes, it’s always safest to get an agreement in writing. In Louisiana, when an agreement is about the sale of real estate, the adage is law. A contract for sale must be in writing as provided in Louisiana Civil Code articles 1839 and 2440.

This long-standing rule was at issue in the recent case of Holmes v. Paul, 19-130 (La. App. 5 Cir. 10/2/19), 279 So. 3d 1068. In Holmes, the plaintiff/seller and defendants/purchasers entered into a purchase agreement for a Metairie home which required a closing by no later than April 29, 2016. The contract was a standard form Louisiana purchase agreement which required that any change in the closing deadline be written and signed by both parties. The parties later entered a written extension of the closing deadline to May 6, 2016.

Three days before the closing, the home appraised for $14,000 below the purchase price, leading the seller’s agent to encourage the purchasers’ agent to pursue an appraisal review. However, the parties did not sign a written extension of the May 6, 2016 closing deadline. Thereafter, the seller agreed to decrease the purchase price to the appraised value, but on the same day the purchasers sent a signed cancellation. The seller sued the purchasers for breach of contract, arguing that the parties verbally agreed to extend the closing deadline and intended to execute a written extension as soon as they determined a feasible closing date.

The purchasers moved for summary judgment on the ground that the purchase agreement had expired and was unenforceable. The Court agreed. The purchase agreement expressly required that extensions be made in writing signed by both parties. Upon the expiration of the May 6, 2016 closing deadline, the contract was unenforceable.

The seller also asserted a detrimental reliance claim, arguing she was lulled into not insisting on a written extension because the purchasers’ agent agreed to it orally. However, the seller conceded her awareness that an extension had to be in writing. As such, her reliance was not reasonable. The court further noted the absence of evidence that the purchasers themselves agreed to orally extend the contract or to waive the writing requirement.

Unfortunately, business deals in the modern world cannot be finalized by a handshake. Remember that when you buy and sell property in Louisiana -- get it in writing.

Marty Golden has been practicing law based in Baton Rouge, Louisiana for over thirty years, concentrating in civil litigation primarily involving injuries, property damage, insurance coverage, and contract disputes. Much of his practice is defending and advising real estate agents in suits by property buyers and sellers, but Marty also defends other professionals, insurance companies, manufacturers, and business owners. Marty has a special interest in all things procedural, because they are the rules of the road for litigators and knowing them better than his opponent gives him a leg up in court.

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Premises Liability: Defense Summary Judgment in an Accident Involving Rolling Chair

A recent decision from the Louisiana Third Circuit Court of Appeal re-affirms the merchant liability rules. In Carolyn R. Miller and Steven Rathjen v. Willis Communications, et. al., 19-787 (La. App. 3 Cir. 6/24/20), the plaintiff was an elderly patron of an AT&T store. Plaintiff and her daughter were assisted at the customer service desk, and plaintiff took a seat in a rolling chair. When she attempted to stand up, the rolling chair moved, and she fell to the floor breaking a hip.

Plaintiff filed suit under the merchant’s liability statute, La. R.S. 9:2800.6. Per the statute, if a negligence claim is brought against a merchant by a person lawfully on the merchant’s premises for injuries sustained because of a fall, then plaintiff must prove: 1) that the condition of the merchant’s premises presented an unreasonable risk of harm that was reasonably foreseeable; 2) that the merchant created the risk or had actual or constructive knowledge of the condition; and 3) that the merchant failed to exercise reasonable care to address the unreasonable risk of harm. Plaintiff argued that an unreasonable risk of harm was created when she was given a chair on rollers on flooring allegedly unsafe for use with a rolling chair.

The defendants filed a motion for summary judgment, which was denied by the trial court. The appellate court reversed and entered summary judgment. The appellate court found that the critical element of plaintiff’s burden of proof was missing – any defect in the rolling chair. Plaintiff admitted that the chair was not defective. Instead, she argued that she should not have been given a rolling chair to sit in because of her age, obvious mobility issues, and because the rolling chair was unsafe on the flooring of the store.

Evidence was presented that: 1) plaintiff’s daughter was able to maneuver the rolling chair without incident; 2) the daughter did not believe that plaintiff would have trouble navigating the rolling chair; and 3) no other customer had ever fallen out of one of the rolling chairs. Simply, what occurred at the AT&T store was an accident, for which AT&T and its employees were not responsible. Plaintiff, well aware of her own physical limitations, chose to sit in a rolling chair that she physically was unable to get out of on her own. Based upon this evidence, the court reasoned that plaintiff did not prove that: 1) the rolling chair posed an unreasonable risk of harm; or 2) the merchant possessed actual or constructive knowledge of any defect.

Following decisions which imposed harsh standards upon retailers, the Louisiana Legislature adopted the merchant’s liability statute to limit recovery to cases involving true negligence. The Carolyn R. Miller decision demonstrates that the statute is properly used in motion practice to resolve cases where the merchant lacks advance knowledge of the claimed unreasonable risk. Sometimes, an accident is just an accident.

Virginia “Jenny” McLin is a partner at Keogh Cox who practices in the fields of corporate litigation, insurance defense and workers compensation defense. When she is not practicing law, Jenny can be found volunteering with the Junior League of Baton Rouge; cheering for the LSU Tigers with her husband Ryan; or shuffling her two kids to and from dance practice.

Brian T. Butler

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