These submissions required an acceptance of the appellant's medical witnesses over those of the respondent in circumstances where the trial judge had accepted the respondent's doctors.
31 The thrust of the appellant's attack was that Professor Dorsch a neurologist, Dr. Scougall an orthopaedic surgeon and Dr. Yeo a rehabilitation specialist, each of whom had been qualified by the respondent to provide medico-legal reports, did not have an accurate pre-accident history in that, although the respondent had continued at work after the tyre changing incident, he did so in circumstances where he had been prescribed and was taking strong pain relief medication and had also asked for time off work. The appellant made an anterior submission that when Drs. Scougall and Yeo provided their initial reports they were not even aware of the previous incident in October. It followed on the appellant's submissions that the evidence of these doctors ought not to have been accepted.
32 The respondent made a number of responses to the appellant's challenge. First, he said that although the respondent had asked for time off work, his employers had not been able, as at the date of the motor vehicle accident, to provide that to him so that the respondent had in fact continued on at work after the tyre changing incident.
33 Secondly, notwithstanding the omission in the information originally provided to Drs. Scougall and Yeo, by the time of giving their final reports in the matter, each had been provided with a complete history other than the request for time off work. In particular, each was aware of the treatment which had been provided by Dr. Rombola, including the prescription of pain relief medication.
34 To this extent I am of the opinion that the absence of a complete history at the time these experts first gave their reports, does not affect his Honour's acceptance of their ultimate opinions. That leaves the question whether the fact that none of the respondent's medical experts knew that the respondent had taken time off work means that his Honour's acceptance of their opinions should be set aside. Given the appellant's failure to cross-examine any of these experts, and given that the respondent had in fact been able to continue at work, I do not consider that this omission provides a sufficient appellate basis to displace his Honour's acceptance of the respondent's medical evidence. The appellant's contention, therefore, that the medical evidence of his experts should have been accepted rises no higher than being a complaint that one body of medical evidence should have been preferred over the evidence given by others. That of itself, is never sufficient.
35 In further response to the appellant's challenge to the medical evidence, the respondent also submitted that Dr. Zeman, a specialist in rehabilitation medicine qualified on behalf of the appellant, agreed in cross-examination that an accident of the severity of this accident was likely to cause back injury and, more particularly, in the case of someone with a pre-existing lumbar disc problem, was likely to cause a significant exacerbation of that disc problem. In re-examination, Dr. Zeman said that, if there was an exacerbation of a pre-existing lumbar disc injury, it would be expected that the exacerbation would occur "at the time not hours or days afterwards". The appellant relied upon this as evidence that the respondent's ongoing incapacity could not be related to the accident. However, that evidence fell to be assessed with the evidence as a whole. Mrs. Adams' evidence supported a case that the respondent suffered an immediate exacerbation of his problems. In those circumstances, the qualification made by Dr. Zeman in re-examination, even if accepted, was one which was satisfied on the evidence before his Honour. In those circumstances, I consider that there has been nothing in the challenge to the medical evidence accepted by the trial judge which requires or even permits that finding to be set aside.
36 However, there is a further issue which is not resolved by the rejection of the appellant's challenge to his Honour's acceptance of the respondent's medical evidence. His Honour found that "[T]he sciatica already contracted [by the respondent] by the time of the motor vehicle accident would have continued for some period even if this accident had not occurred, though not so as to produce continuing pain and disability". The effect of this finding was that his Honour attributed all of the respondent's on-going disability to the accident. This finding is also challenged. Senior counsel for the respondent, was not able to point to any medical evidence which supported his Honour's finding. In fact, all the medical evidence is to the contrary. Senior counsel for the respondent sought, however, to support the finding in another way. He submitted that the respondent's history was that, when he had previously had back problems in 1980, 1985 and 1986, he had recovered completely so that it was probable that he would recover from the tyre incident in October. In my opinion, a finding of this nature could not be made without the support of medical evidence. As I have already stated, and as was acknowledged, there was none. In those circumstances, it seems to me that the quantum of his Honour's award cannot stand.
37 That leads to the question of what an appropriate award of damages should be. Both parties urged that this Court make that assessment, (albeit with momentary wavering on the issue by senior counsel for the appellant). Senior counsel for the appellant submitted that an appropriate way of reassessing the damages was to increase the percentage deduction for vicissitudes made by his Honour across the whole of the amount of damages. Senior counsel for the respondent accepted that this was an appropriate approach for the Court to take. He submitted that there ought not be any increase in the discount applied by the trial judge, as vicissitudes had been assessed at a very high level (35%) so as not to warrant any interference, even on the changed basis on which the respondent's claim was to be assessed. He also submitted that, in respect of non-economic loss, his Honour's finding that the respondent was 28% of a most extreme case was moderate in the extreme. Although no cross-appeal had been filed, he submitted that that assessment remained appropriate, even taking into account the fact that some of the disabilities from which the respondent now suffered were attributable to the tyre changing incident.
38 Notwithstanding counsel's brave attempt to sustain the verdict amount, I do not consider that it can stand. I have found that his Honour erred in attributing the whole of the on-going disability to the motor vehicle accident. The respondent's medical experts provided a range of assessments as to the extent to which each incident had made an contribution to his on-going disabilities. Dr. Scougall considered both incidents were substantial contributing factors, Dr. Yeo considered that 50% of his present level of disability was attributable to the motor vehicle accident and Professor Dorsch considered that the major cause of the respondent's continuing level of disability was the motor vehicle accident, contributing about two-thirds overall. He based this assessment in part upon the fact that the respondent was able to continue at work for 12 hours a day after the tyre changing incident. That basis, as I have already explained, contains some distortion of the true position.
39 Although I have concluded that the fact that none of the doctors were aware that the respondent had in fact requested time off work prior to the motor vehicle accident was insufficient to interfere with the trial judge's acceptance of their evidence, it is a matter which, in my opinion, is to be borne in mind for the purposes of the reassessment which this Court has been requested to make. Having regard to the medical evidence accepted by his Honour, I consider that an appropriate discount for vicissitudes is 50%.
40 That raises the next question as to whether that discount should be applied to all components of the damages awarded. In my opinion, it is appropriate to do so in respect of all items which relate to economic loss and out of pocket expenditure. I do not consider, however that it is an appropriate approach to the assessment of non-economic loss. In that regard, as I have said, his Honour considered that the respondent should be assessed on the basis of 28% of a most extreme case. Consistently with the approach I have considered appropriate, that assessment should be reduced. In my opinion, an appropriate assessment is 23%. The award of future economic loss and non-economic loss, thus, remain above the thresholds specified in the Motor Accidents Act 1988.
41 That leaves one final matter for determination. The trial judge awarded economic loss to the respondent on the basis of nett earnings of $883.00 per week. This amount was applied to both past economic loss and future economic loss. His Honour awarded past economic loss, based on this figure, in a total amount of $139,746.00. This amount was challenged as was the amount for future economic loss based on the same figure. It was said that the amount was based upon a nett weekly payment, after deducting tax of 20% under the Prescribed Payment System which applied to the respondent, given the terms of his employment with Rowley Earthmoving. It was said, however, that the appropriate taxation rate was 43%. The appellant handed a schedule to the Court setting out awards of past and future economic loss based on this rate.
42 In dealing with the amount to be awarded for past loss of earnings, his Honour stated that "the amount submitted by [counsel for the respondent at trial] …, not disputed by [counsel for the appellant at trial] is $139,746". Senior counsel for the appellant submitted that the amount was indeed in dispute. When pressed, neither counsel was able to provide much assistance to the Court as to whether this amount had or had not been disputed by the appellant at trial, except by reference to that counsel's "usual practice" of "never agreeing to anything". Senior counsel for the respondent frankly conceded that it is likely that there was no dispute as to the mathematical quantification but that it was likely there was no agreement beyond that. All this stands at odds with his Honour's statement, notwithstanding senior counsel's concession. His Honour's judgment is a well written, carefully reasoned judgment so that it might be thought that it would be unlikely for his Honour to make such an error. Further, there was no evidence adduced by the appellant to enable his Honour to make an assessment based upon a tax rate of 43%. Such evidence as was before his Honour supported the amount awarded, and thus supported his Honour's stated premise that there was no dispute as to the amount.
43 The question is however, what is the most appropriate way to deal with this issue. It was submitted to this Court that the amount can be appropriately determined by having regard to tax rates, and the appellant's schedules now provide the necessary calculations. Had this been the only challenge to his Honour's award, the appellant would, I suspect, have been harshly dealt with in respect of costs. That, at least, would have been the position taken by me. However, as damages have to be reassessed on the view I have taken, it is both appropriate, and I consider incumbent upon this Court, to award damages using the appropriate tax rate. As I understand it, senior counsel for the respondent did not dispute that the appropriate rate was 43%. However, as he was confronted with that material during the course of the appeal I propose to direct the parties to bring in Short Minutes to accord with these reasons, reserving liberty to the respondent to apply in respect of the appropriate taxation rate should the parties not be able to agree. Accordingly, I would propose the following Orders: