Résumé : The undertaking of complex and major surgical procedures on frail elderly patients with multiple disorders has always been and still remains a controversial and enigmatic issue. At the same time, in an increasingly ageing society, the need for such procedures will extend and patients will expect a more favourable outcome. Surgery in old age will, therefore, pose an ongoing challenge. With better anaesthetic management, surgical techniques and comprehensive geriatric assessment, the overall results for all surgery have improved remarkably over the last few decades. Stringent pre-operative assessment and rigorous post-operative care have achieved a significant reduction in mortality and morbidity; surgery has become a lot safer.