Joint hypermobility, joint laxity or "double-jointedness" is no longer regarded as just a quaint clinical entity, but has gained recognition as a feature common to a heterogeneous group of generalized hereditary connective tissue disorders. This monograph examines the scientific basis, clinical features and treatment of this syndrome. The second edition has been thoroughly updated, with new contributions to cover in depth three areas in which new scientific advances have been made: biochem...