Cartilage Repair Strategies is a comprehensive update of the present state of cartilage repair and regeneration. The information in this volume addresses what methods are effective, what methods are safe, and what methods will lead to an alteration in the short history of articular cartilage injury repair. Contributors present examinations of a variety of topics including the structure and function of articular cartilage, the evaluation of cartilage repair techniques, and the latest cartilage sensitive imaging techniques. Several chapters anticipate new and emerging cartilage repair techniques - such as second generation ACI, resorbable scaffold-based repair, and arthroscopically performed cartilage transplantation - and include descriptions of the rationale and application of these procedures. Leading experts present updates on current and emerging methodologies, making Cartilage Repair Strategies a unique and essential reference.

It is now more than twenty years since a proposal was first mooted to hold an international tunnelling symposium in Britain. At the time of the first symposium, held in London in 1976, the Channel Tunnel pro ject had just been shelved. Last weekend a charity walk was held in the finished tunnel, which will be open for business later in the year. Tunnels have figured prominently, and at times spectacularly, in the development of national and international links and it is hoped that such links gather pace in the future. It is particularly pleasing that Alastair Biggart of Storebrelt has agreed to deliver the twenty-sixth Sir Julius Wernher Memorial Lecture of the Institution of Mining and Metallurgy, entitled 'The changing face of tunnelling', at the start of this event. * Although almost every edition of the technical journals on tunnelling reports another GBP1 billion scheme somewhere in the world, it would be unfair of me to suggest that tunnelling is restricted to these prestigious schemes for major transport links. Much of the work that makes mod ern life possible receives hardly a mention outside the technical press and one suspects that society at large applies the 'out of sight, out of mind' attitude even more readily to underground construction than it does to other forms of engineering. Clearly, there is a contiiming need to improve the capacity and performance of our infrastructure, while hav ing a careful regard for the environment.