knee. 1

The angle made by the bend of the leg; the femorotibial articulation, together with the surrounding structures. 2. A sharp bend in a structure, housemaid's k. Inflammation anterior to the bursa patellae followed by effusion, hysterical k. The simulation of inflammation of the k. joint, but pain and often contracture are the only symptoms present, in-k. See knock-knee. k.-cap. See patella, k.-jerk. See patellar reflex, under reflex, k.-pan. See patella. k. of the corpus callosum. See genu of the corpus callosum. k. phenomenon. See patellar reflex, under reflex. knock-k. Syn.: in-k., genu valgum. A deformity in which the leg is deflected outward, so that the feet cannot be brougnt together side by side, with both legs extended. lawn tennis k. A sprain of the internal semilunar cartilage of the k. joint caused by a violent motion of rotation of the body while the foot is fixed. The symptoms are those usually caused by a sprain, and the affection is liable to recur on slight provocation. out-k. _ Syn.: genu varum. A deformity in which one or both knees is carried outward, owing to the bending of the tibia, or the fibula, or both. [Teut., old Eng., old Fris., cneo, cne, kne.1