Liddell Coal Operations Pty Ltd v Hector

Liddell Coal Operations Pty Ltd appealed to the Court of Appeal of New South Wales against a decision of the primary judge who had found that the respondent, a coal miner, had suffered a work injury. The dispute concerned whether the respondent's employment as a coal miner was a contributing factor to the aggravation, acceleration, exacerbation, or deterioration of his pre-existing degenerative condition of osteoarthritis in his right knee, as contemplated by section 4(b)(ii) of the *Workers Compensation Act 1987* (NSW).

The central legal issue before the Court of Appeal was whether the primary judge had erred in point of law in finding that the respondent's employment constituted a work injury. This required the court to consider the application of section 4(b)(ii) of the Act to the facts of the case, specifically whether the evidence supported a causal link between the physical demands of the respondent's work and the progression of his knee condition.

The Court of Appeal dismissed the appeal, upholding the primary judge's finding. The court reasoned that the primary judge had correctly applied the principles of causation under the *Workers Compensation Act 1987* (NSW). The evidence presented, including medical opinions, established that the repetitive and strenuous nature of the respondent's work as a coal miner had indeed contributed to the aggravation and deterioration of his osteoarthritis. The court found no error of law in the primary judge's assessment of this evidence and the resulting conclusion that the employment was a contributing factor to the worker's condition.

Consequently, the appeal was dismissed, and the appellant, Liddell Coal Operations Pty Ltd, was ordered to pay the respondent's costs.