Lisfranc injury: The Lisfranc injury (also known as the Lisfranc fracture, Lisfranc dislocation, Lisfranc fracture dislocation, tarsometatarsal injury, or simply midfoot injury) is an injury of the foot in which one or more of the metatarsal bones are displaced from the tarsus. The injury is named after Jacques Lisfranc de St.Dorsalis pedis artery: In human anatomy, the dorsalis pedis artery (dorsal artery of foot), is a blood vessel of the lower limb that carries oxygenated blood to the dorsal surface of the foot. It arises at the anterior aspect of the ankle joint and is a continuation of the anterior tibial artery.Dredge ball joint: A dredge ball joint is a connection between two pipes that are used to transport a mixture of water and sand from a dredger to the discharging area.Osteoporosis circumscripta: Osteoporosis Circumscripta Cranii refers to a highly circumscribed (focal) lytic lesion of the skull bone as seen on X-ray in patients with Paget's disease of bones. This focal lesion can be fairly large.Diabetic foot ulcer: Diabetic foot ulcer is a major complication of diabetes mellitus, and probably the major component of the diabetic foot.Knee pain: Knee pain is a common complaint for many people. There are several factors that can cause knee pain.Foot deformityDag Vidar Kristoffersen: Dag Vidar Kristoffersen (born 1957 in Drammen) is a Norwegian football coach, best known for his time in Strømsgodset where he led the team to two silver medals in the Norwegian Football Cup and bronze medals in the Tippeligaen. Kristoffersen is a former football and bandy player, having represented Drafn in both sports.