Prosthesis for Partial and Total Joint Replacement

摘要

A prosthetic joint is secured to the bones forming the original joint by utilizing strictly mechanical fasteners, for example, a threaded rod engaging a tapped intramedullary canal. Cross locking members may be provided. The need for bone cement is avoided. The prosthetic joint may be used to replace one end of one bone forming the joint, utilizing the naturally occurring end of the other bone. Alternatively, both bone ends may be replaced with prosthetic joint portions. The decision to replace one or both bone ends may be made mid-surgery. The prosthetic joint portions are secured together utilizing ligament reconstruction members made from portions of the patient's tendons or allograft tendons. A bearing forming the interface between the two joint portions is designed to wear in order to protect the remaining components from wear, and to be easily replaced in relatively simple future surgeries.

主权项

1. A prosthetic joint, comprising:
a first joint component that is structured for attachment to a first bone, the first joint component defining a channel therein, the channel being dimensioned and configured to receive a viscoelastic ligament reconstruction member passing completely therethrough; and a second joint component that is structured for attachment to a second bone, the second joint component including a ligament retention member, the ligament retention member being secured to the second joint component in a manner that permits compressing a portion of a viscoelastic ligament reconstruction member between the ligament retention member and the second bone; whereby the viscoelastic ligament reconstruction member is retained therein.