Abstract: A lunate implant includes a one-piece, at least semi-rigid body defining a triquetrum face, a scaphoid face, a cupped, concave, distal surface adapted to articulate with the capitate bone, a proximal surface, a palmar surface and a dorsal surface. A pair of spaced, generally parallel suture passages extend between and open through the triquetrum and scaphoid faces. A pair of sutures are stitched to ligaments of the wrist. The ends of the sutures are passed through the suture passages so that one of the sutures has ends extending away from the triquetrum face and the other suture has ends extending away from the scaphoid face. The ends are grasped and the lunate implant is pulled down into the desired position in the distal carpal row of the wrist. The sutures are tied adjacent the implant to stabilize and position the implant.

Abstract: A lunate implant includes a one-piece, at least semi-rigid body defining a triquetrum face, a scaphoid face, a cupped, concave, distal surface adapted to articulate with the capitate bone, a proximal surface, a plamar surface and a dorsal surface. A pair of spaced, generally parallel suture passages extend between and open through the triquetrum and scaphoid faces. A pair of sutures are stitched to ligaments of the wrist. The ends of the sutures are passed through the suture passages so that one of the sutures has ends extending away from the triquetrum face and the other suture has ends extending away from the scaphoid face. The ends are grasped and the lunate implant is pulled down into the desired position in the distal carpal row of the wrist. The sutures are tied adjacent the implant to stabilize and position the implant.

Abstract: A scaphoid implant surgically insertable adjacent the trapezium, the trapezoid, the lunate, the capitate and the radius bones includes a rigid, metal body. The body defines a capitate articulating surface, a radius articulating surface and a lunate articulating surface. A stem extends from an inferior surface of the body. The stem defines a trapezium engaging ledge. The ledge when implanted engages the trapezium to prevent vertical or dorsal movement of the implant out of the plane of the wrist. The body defines a bore for receiving a suture to prevent rotation at the scapholunate junction.

Abstract: A wrist implant for stabilizing the proximal carpal row and prevent ulnar migration thereof while permitting movement at the radiocarpal joint includes a body having a generally planar, proximal surface which has a teardrop shape. The body further defines a generally triangular or wedge-shaped dorsal surface which is joined to a curved medial surface. The body defines a smooth recess including a lunate surface. The recess is configured to receive the carpal row lunate bone and is open distally and palmarly. The implant further includes a proximal stem which extends perpendicular to the proximal surface. The implant is adapted to be positioned at the distal end of the radius with the stem inserted into the intramedullary canal of the radius bone. The implant constrains the proximal row of the carpal bones, stabilizing the joint and preventing ulnar migration of the wrist bones.

Abstract: A wrist implant for stabilizing the proximal carpal row and preventing ulnar migration thereof includes a body having a generally planar, radial surface which has a teardrop shape defined by curvilinear dorsal and palmar lateral edges and a semicircular medial edge. The body further defines generally triangular or wedge-shaped dorsal and palmar surfaces which join to form a curved medial surface. The body defines a smooth, cup-shaped, concave recess including a lunate surface. The recess is configured to receive the carpal row lunate bone. The implant further includes a proximal stem which extends perpendicular to the radial surface. The implant is adapted to be positioned at the distal end of the radius with the stem inserted into the intramedullary canal of the radius bone. The implant constrains the proximal row of the carpal bones, stabilizing the joint and preventing ulnar migration of the wrist bones.

Abstract: The child restraint of the present invention includes a waistband which is placed around the child. The waistband is retained in that position by hook and napped loop means such as VELCRO. The use of hook and napped loop means permits the waistband to be easily adjusted to fit the size of any particular child. The restraint further includes an elongated strap which is securely attached to the waistband. The strap is adapted to be looped around a suitable anchor, such as the parent's seatbelt or the armrest of the parent's seat. The end of the strap is passed around the fixed object and then threaded through a ring attached to the waistband. The strap is then pulled back across the ring so that it overlaps the portion of the strap projecting toward the ring. The overlapped portions of the strap are secured together by hook and napped loop means such as VELCRO. The device restrains the child from becoming dislodged from his parent's lap during landing and take-off or when turbulence is encountered.

Abstract: A bone plug is disclosed for plugging the intramedullary canal of a bone to restrict the flow of cement used to affix a prosthesis. The bone plug includes a resilient body of medical grade material. The body has a smooth, blunt, rounded nose, a midportion joined to the nose and having a toroidal shape and an upper, open ended portion joined to the midportion and defining a recess. The upper, open ended portion is generally frusto-conical in shape and further defines a plurality of circumferentially spaced petal-like elements.

Abstract: A prosthesis for replacing the elbow joint includes a humeral component having a body portion defining a plurality of generally semi-circular distal bearing surfaces extending therefrom and a proximally extending intramedullary canal stem. An ulnar component has a body portion defining a convex posterior surface adapted to be received within a prepared semi-lunar notch of the ulna, a plurality of semi-circular grooves configured to matingly receive the distal bearing surfaces of the humeral component, and a distally extending intramedullary canal stem. The ulnar component further defines a laterally positioned capitulum process having a distal surface adapted to be abutted against by the head of the radius bone upon implantation. The humeral component defines an aperture and the ulnar component includes a hook-like member adapted to detachably and hingingly interconnect the components in a slipfit fashion.

Abstract: A flexible implant for replacing the scaphoid bone of the wrist includes a one-piece body of resilient material. The body defines an inferior surface of slightly convex and oval shape with the apex of the surface lying in substantially a single plane and defining a trapezium articulate facet and a trapezoid articulate facet. A stabilizing stem extends outwardly from the inferior surface and generally perpendicular thereto. The body further defines a superior surface having a smooth, slightly convex shape and being adapted to articulate with the radius. An internal surface defined by the body has a lunate articular facet and a deep concavity, the latter adapted to articulate with the capitate. An external surface of generally smooth and convex shape is bounded by the inferior surface and the superior surface and defines a dorsal edge of the internal surface concavity. A posterior surface extends between the external surface and the proximal edge of the lunate articular facet.

Abstract: A protectable device for preventing lacerations or tearing of a surgically implantable, flexible prosthesis by sharp bone edges includes a member having a generally curvilinear shield portion configured to conform to the prosthesis and a stem portion extending from the curvilinear shield portion and dimensioned to cover at least the top surface of a prosthesis intramedullary stem.

Abstract: A flexible implant for replacement of the lunate bone of the wrist includes a one-piece body of resilient material defining a planar triquetrum face having a general U-shape in plan and further including a stabilizing stem extending outwardly from and perpendicular to the planar triquetrum face and a planar scaphoid face having a generally U-shape in plan extending at an angle with respect to the triquetrum face. The body further includes a cupped, concave, smooth distal surface adapted to articulate with the head of the capitate bone. The body defines a proximal surface having a smooth convex shape and extending between the proximal edges of the triquetrum and scaphoid faces. Generally planar palmar and dorsal surfaces extend between the dorsal lateral edges and the palmar lateral edges of the triquetrum and scaphoid faces.

Abstract: A protective device for a surgically implantable prosthesis having a pair of outwardly directed intramedullary stem portions, includes an elongated, one-piece sleeve defining a passage for receipt of one of said stem portions and insertable within one of the intramedullary canals of the bones adjacent the joint. The sleeve has an end portion extending from the canal and protecting the implant from lacerations or tearing by the edges of the bone.