Investigations; arthroscopy and meniscal surgery; meniscal disorders and transplants; biomechanics of ligamentous injuries of the knee; acute ACL rupture; chronic ACL deficiency; PCL injuries; patellofemoral joint disorders; chondral and osteochondral lesions; synovial disorders; children's knee derangements; the discoid meniscus; fractures around the knee; osteoarthritis; conservative surgery; osteotomy in osteoarthritis; unicompartmental replacement arthroplasty; revision arthroplasty of the knee; medical management of the rheumatoid knee; evaluation and documentation for disorders of the knee.