17 I pause to make this comment upon the films, which I have watched a number of times. I consider that his Honour's conclusion concerning the second film, his understanding of which was assisted by the evidence of Dr Gordon, was well justified. With respect to the first film, however, I consider that his Honour's conclusion was unduly favourable to the appellant. It seemed to me that the respondent exhibited throughout a flexion deformity of at least her thumb.
18 His Honour noted in his reasons Dr Gordon's response to seeing the first film. The doctor had conceded that what was depicted was in marked contrast to the respondent's presentation to him. He could not say whether the exaggeration was conscious or unconscious. Whilst complex regional pain syndrome does vary, the respondent's use of her hand was much better than he would expect from a person suffering from that syndrome.
19 I pause for a moment to note two matters. First, the doctor was not squarely asked if he abandoned the diagnosis. Second, in re-examination he described clinical findings consistent with its presence.
20 Returning to the narrative, his Honour next considered the evidence of Dr Savas, the respondent's general practitioner. He noted the doctor's observation, in October 2002, that the respondent exhibited atrophy of the thenar muscles of her right hand; and added "... there is uncontradicted evidence of the wasting of those muscles, which is (apparently) a classic indication of medial nerve neuropathy". He noted also the doctor's opinion that the respondent's original carpal tunnel injury had been exaggerated by a concurrent sympathetic dystrophy, that the respondent now had a "claw hand deformity," and that her prognosis was guarded and unlikely to improve in the foreseeable future.
21 The judge then made reference to the report of Dr Warren Kemp, a rheumatologist, who had examined rhe respondent once, in August 2002. That doctor had noticed the muscle wasting to which I referred a moment ago, fixed flexion of the right thumb, limited movement of joints of the hand, and a glove-like sensory disturbance which indicated functional amplification of symptoms. The doctor having seen the respondent only once, and his report being old, his Honour understandably did not find it to be of much assistance.
22 His Honour then referred to the report of a neurologist, Dr Sedal, who had examined the respondent only once, on behalf of the appellant, in February 2003. He noted that the report was relied upon by the appellant only to show exaggerated presentation by the respondent. The respondent had presented to that doctor with a flexion deformity of the hand, general restriction of movement and non-specific sensory disturbance. The doctor had concluded that the respondent continued to have "symptoms and signs suggestive of medial nerve dysfunction", whilst suspecting that there was "a significant functional overlay".
23 His Honour then turned to the reports of Mr Stapleton, a hand surgeon, who had examined the respondent on the appellant's behalf in March 2003 and March 2005. His Honour recorded the circumstance that the doctor had advanced the opinion that carpal tunnel syndrome is unrelated to work - a proposition that counsel for the appellant had not invited him to accept. In that setting, his Honour observed that there was a real risk that Mr Stapleton's view had "infected other observations" which he had made. Mr Stapleton's observations, which led him to say that the respondent's presentation did "not make sense as far as the anatomy of the problem is concerned", and to express the conclusion that he saw "no evidence of complex regional pain syndrome" had been supplemented by viewing the films. They led him to say that "the videos ... certainly indicate that this lady's presentation is, to say at least, inconsistent".
24 Next, the learned judge considered the reports of Mr Flanc, a general and vascular surgeon, who had examined the respondent in October 2002 and October 2005. The appellant's counsel, he noted, relied upon the respondent's account to Mr Flanc as to the extent of her disabilities, and upon her presentation with a claw hand, as evidencing her exaggeration. The doctor, it should be said, initially opined that the respondent had suffered a right carpal tunnel syndrome, had possibly residual significant compression of the median nerve, and also exhibited features to support a significant degree of functional overlay. I will return to his Honour's consideration of Mr Flanc's reports a little later in these reasons.
25 His Honour next noted the report of Dr Blombery, a vascular physician who had examined the respondent in late 2004. She had presented with her right arm virtually immobilised. It exhibited a slight tremor. The wrist was splinted, and the hand was in a semi-flexed position. The patient reported changes in temperature and colour in her hand in association with pain. The doctor diagnosed complex regional pain syndrome type 1. It was not in debate, I interpolate, that this was a diagnosis of an organic, not a functional, illness. The doctor further opined that this condition was secondary to a carpal tunnel compression of the median nerve, and that the respondent's prognosis was poor.
26 The learned judge observed that the doctor's opinions were "called into question by the marked difference between the respondent's presentation to the doctor and her behaviour when filmed five months earlier". There could be no suggestion that his Honour failed to appreciate the difference between the respondent's presentation to the doctor and the apparent freedom with which she had used her right hand when filmed earlier on. It is implicit in what his Honour said that he treated the doctor's opinion, at least in terms of the severity of the diagnosed condition, with some reservations.
27 His Honour then returned to consideration of Mr Flanc's evidence, specifically the doctor's report arising out of his examination of the respondent on 31 October 2005. The doctor, at that time, was in receipt of Dr Blombery's report. The judge observed, shortly, that the degree of limitation of movement exhibited by the respondent to Mr Flanc was much greater than shown in the films, and greater than that which she had demonstrated in the witness box. His Honour understandably commented that "(t)here is something odd here".
28 This was but one instance of his Honour using his impression of the films to gainsay the reliability of examination findings - and so reflect upon the conclusions expressed by a medical witness. Mr Flanc's conclusions, it may be noted, were that the respondent's probable permanent loss of arm function was attributable mainly to non-organic factors - the residual carpal tunnel syndrome not being significant, and complex regional pain syndrome type 1, if present, being mild.
29 The learned judge then considered the evidence of the general surgeon Mr Karna. He had reported in May 2004 after examining the respondent on the appellant's behalf. At examination, the respondent had held her right hand in a clawed position. She complained of a non-anatomical numbness of the lower arm, and she could not make a pincer movement. This last finding, his Honour noted, was at odds with actions performed by the respondent in the first of the surveillance films.
30 The film having been shown to Mr Karna, he had commented that it re-affirmed his "clinical impression that her presentation realistically is being exaggerated". The same was his opinion, in essence, when contrasting his examination findings in March 2005 with the second surveillance film.
31 Then the learned judge considered the evidence of a surgeon, Mr Hadj, who had examined the respondent in October 2002[5] and in October 2005. On the second occasion, she had complained of pain along the length of her right arm, and had presented as being very restricted in use of her right arm, which was splinted. She had exhibited constant flexion of the thumb and fingers. His Honour noted that this presentation contrasted with the situation revealed by the second film.
32 Next, his Honour referred to the evidence of Mr Mangos, a general surgeon, who had examined the respondent at her solicitors' request in October 2005. That doctor had noted, as had others, "marked wasting in the thenar eminence of the right hand and the small muscles of the right hand also". His Honour added -