The decision in Nguyen v Motor Accidents Authority of NSW
11The proper officer's decision to refer the matter for review was based upon the judgment of Hall J in Nguyen v Motor Accidents Authority (NSW) [2011] NSWSC 351; (2011) 58 MVR 296.
12In that case, Hall J was concerned with the meaning of the statutory term "the degree of permanent impairment ... as a result of the injury caused by the motor accident". The term is to be found in ss 58, 131 and 133, provisions which are all relevant in the present case. His Honour found (at [119]) that the words should be accorded their ordinary meaning.
13The facts of that case are similar to the present. Immediately after a motor accident the claimant reported symptoms of a soft tissue injury to the neck (it was not disputed that there was a cervical spine injury). It was not until four months later that right shoulder symptoms were noted. At some stage within that four month period there was an entry in hospital notes of "neck pain passing to left shoulder".
14A medical assessor (Dr Menogue) accepted that there was a "significant range of movement involving the right shoulder ... [which] is directly related to her cervical injury". However the assessor also said:
There is no evidence whatsoever supporting causation between the subject accident and any primary and isolated injury to either the right or left shoulder in the subject motor vehicle accident.
15An application for referral for review was rejected by the proper officer of the Authority on the basis that there was no error in the approach taken by the medical assessor. Ms Nguyen sought judicial review of the decision of the proper officer.
16The proceedings turned on the construction of ss 131 and 133(1) of the Act. They provide:
131 No damages may be awarded for non-economic loss unless the degree of permanent impairment of the injured person as a result of the injury caused by the motor accident is greater than 10%. (Emphasis added)
131(1) The assessment of the degree of permanent impairment of an injured person as a result of the injury caused by a motor accident is to be expressed as a percentage in accordance with this Part. (Emphasis added)
17After referring to these and certain other provisions, Hall J stated:
[92] It is trite to say, and in accordance with ordinary human experience, that injury to one part of a person's body can affect or lead to impairment in both the part directly injured and in a related or connected part.
[93] In the present case, there was no dispute as to the following facts:-
(1) The plaintiff was injured in a motor accident.
(2) That as a result of the accident, she suffered an injury to the cervical/neck area: "cervical injury".
(3) The injury to the neck has led to permanent impairment (assessed at 5%).
(4) The plaintiff has, as a consequence of the neck injury, also suffered an impairment in her right shoulder ("... the right shoulder noted today is directly related to her cervical injury" - Dr Menogue at p.12 of the Certificate).
[94] Application of common law causation principles would, in my opinion, support the conclusion that impairment in one or both of the plaintiff's upper limbs consequent upon injury to the cervical spine would be compensable as the natural and direct consequence of spinal injury.
[95] The question, however, in the present case is whether the provisions of the Act operate to alter, constrain or limit common law principles so as to disentitle an injured person to have what might be described as consequential impairment taken into account in the assessment of "permanent impairment".
18Hall J considered, as I have foreshadowed earlier, that the expression "as a result of" in ss 131 and 133(1) should be given its ordinary meaning:
[119] ... [I]t is unnecessary for the requisite causal connection to be established to give the expression "as a result of" some broad or artificial meaning. It is, in my opinion, in context, to be given its ordinary meaning. The medical assessment that was required to be carried out in the present case pursuant to s.60 of the Act was to establish the plaintiff's permanent impairment (as an injured person as a result of the motor accident) that required an assessment of the injury to the cervical spine and its direct effects on related areas including, in particular, the plaintiff's right shoulder.
[120] It follows that, in my respectful opinion, the medical assessment undertaken pursuant to s.60 of the Act was affected by legal error, in that the medical assessor proceeded upon a different basis, namely, that there needed to be a causal connection between the motor accident and a "primary and isolated" injury to the right and/or left shoulder(s).
19His Honour's conclusion on the facts of the case was:
[125] The opinion of Dr Menogue assumes that there is a statutory requirement that in order for there to be a causal relationship between the accident and impairment in this case there must be a "primary and related injury" to the shoulders themselves, as well as, separately to the cervical spine from the motor accident.
[126] That, with respect, involves an approach to statutory construction by the medical assessor which does not accord with the terms of the relevant statutory provisions nor with common law principles concerned with the concept of proximate causation.
[127] In those circumstances, I have concluded that the Certificate of the medical assessor was vitiated by an error of law, as was the decision of the proper officer made on 19 July 2010.