Total metatarsophalangeal joint prosthesis, modular
Definition
An implantable substitute for the metatarsophalangeal (MTP) joint of the foot (toe) intended to repair both articulating surfaces with matching metatarsal and phalangeal components, typically to treat degenerative or traumatic arthritis, hallux valgus, hallus rigidus, and/or an unstable or painful MTP joint. The device is made of metal [e.g., titanium (Ti), cobalt-chrome (Co-Cr)] and polymer materials and implantation may be performed with or without bone cement. Disposable instruments associated with implantation may be included.