Content : 3-11 Review of pathogenesis and treatment of degenerative joint disease. 12-18 A clinical perspective on lameness originating in the carpus. 19-22 Use of autogenous cartilage particles to create a model of naturally occurring degenerative joint disease in the horse. 23-27 Experimental use of small osteochondral grafts for resurfacing the equine third carpal bone. 28-32 The effect of drugs used in the treatment of osteoarthrosis on stromelysin(proteoglycanase) of equine synovial cell origin. 33-42 Incidence, location and classification of 371 third carpal bone fractures in 313 horses. 43-52 Some observations on lameness associated with pain in the proximal metacarpal region. 53-59 Clinical, radiographic, and scintigraphic findings associated with enthesitis of the lateral collateral ligaments of the tarsocrural joint in standardbred racehorses. 60-65 The use of radionuclide bone scanning in the diagnosis of tibial 'stress'fractures in the horse: a review of five cases. 66-70 Bony fragments in the tarsocrural and metacarpo- or metatarsophalangeal joints in the standardbred horse-a radiographic survey. 71-79 Non-invasive measurement of bone: a review of clinical and research applications in the horse. 80-87 Ultrasonic transmission velocity and single photon absorptiometric measurement f metacarpal bone strength: an in vitro study in the horse. 88-92 Monitoring the effects of treadmill exercise on bone by non-invasive means during a progressive fitness programme. 93-98 The hock as a potential site for non-invasive bone measurement. 99-106 valuation of equine locomotion during different degrees of experimentally induced lameness. I: Lameness model and quantification of ground reaction force patterns of the limbs. 107-112 Evaluation of equine locomotion during different degrees of experimentally induced lameness. II: Distribution of ground reaction force patterns of the concurrently loaded limbs. 113-119 Instant centres of rotation of equine limb joints and their relationship to standard skin marker locations. 120-124 Curettage of subchondral bone cysts in medial femoral condyles of the horse. 125-130 Arthrodesis of the equine distal tarsal joints by perforated stainless steel cylinders. 131-132 Bone fragments stimulate equine synovial lining cells to produce the inflammatory mediator prostaglandin E2.