title: Polycentric knee arthroplasty using tibial prosthetic units of a variable height. A preliminary report of design characteristics and a concept of clinical use.
mesh_terms: D000368:Aged; D001172:Arthritis, Rheumatoid / Q000601:surgery; D001178:Arthroplasty; D005260:Female; D006801:Humans; D007595:Joint Prosthesis; D007717:Knee / Q000502:physiology / Q000601:surgery*; D008768:Methylmethacrylates; D008875:Middle Aged; D009068:Movement; D010146:Pain; D011474:Prosthesis Design; D013977:Tibia / Q000033:anatomy & histology
chemical_list: D008768:Methylmethacrylates