Meriton v AAI Limited t/as GIO

In the matter of Meriton v AAI Limited t/as GIO, the claimant, Meriton, sought compensation for injuries sustained in a serious single vehicle accident. Meriton alleged injuries to the neck, lower back, upper and lower limbs, head, and scarring due to surgery for a fractured ulnar and radius, as well as severe ankle ligament damage. The dispute centred around the assessment of whole person impairment (WPI) and the insurer’s review under section 63 of the Motor Accidents Compensation Act 1999. The court was tasked with determining the appropriate WPI rating for Meriton's injuries and whether a brain injury had occurred as a result of the accident.

The legal issues before the court involved the correct interpretation and application of the Motor Accidents Compensation Act 1999 in assessing WPI and the extent of Meriton's injuries. The court had to consider the medical evidence provided by various experts and decide on the credibility and weight of this evidence. Specifically, the court needed to determine the WPI rating for each of Meriton's alleged injuries, including the neck, lower back, upper and lower limbs, and whether a brain injury had occurred. The court also needed to consider the scarring resulting from surgery and its impact on the WPI assessment.

The court found that Meriton had recovered well, with a neck and back Diagnosis Related Estimate (DRE) of I. The ankle and wrist had restrictions of motion amounting to 4% and 1% respectively, while the scarring was assessed at 1% according to the table for the evaluation of minor skin impairment. Although the Panel was satisfied that Meriton sustained a head injury in the accident, they were not convinced that a brain injury had occurred. The total WPI was assessed at 6%. The court concluded that the insurer's review of the WPI was appropriate given the evidence presented.

The court's final orders were that Meriton's WPI should be assessed at 6%, and there was no evidence of a brain injury resulting from the accident. The court ruled in favour of the insurer, determining that the claimant's WPI rating and the extent of injuries did not warrant a different outcome.