Cylindrical hemi-lunar parallel array threaded disc prosthesis

摘要: A small profile, cylindrically or conically shaped prosthetic disc device (20) is provided. The housing comprised of two longitudinally split hollow halves (22, 24), between which contained a hemi-lunar resilient body (41) may be polymeric type, it contain hydrogel. This lies in concave surfaces (51) located on the interior each side cylindrical housing. even under maximum physiological loads, do not contact one another directly. Threads (31) exterior surface (30) facilitates insertion, and retention theprepared bone opening.