A prosthetic intervertebral disc, characterized by comprising: (a) a resiliently flexible and compressible nucleus having an upper face, a lower face, and a peripheral outer surface extending between said upper and lower faces; (b) an upper end plate located proximate said upper face and having a first plurality of fingers extending radially and having respective tips located radially outwardly beyond said peripheral outer surface of said nucleus; (c) a lower end plate located proximate said lower face and having a second plurality of fingers extending radially and having respective tips located radially outwardly beyond said peripheral outer surface of said nucleus; (d) a strand of flexible tension-bearing material separate from the nucleus extending around one of the-first plurality of fingers and to and around a respective one of the second plurality of fingers, separate from but adjacent said peripheral outer surface of said nucleus as a winding interconnecting said upper and lower end plates (40, 42) with each other; and (e) a respective end cap (32, 34) covering each of said end plates (40, 42) and attached thereto by at least one threaded fastener (36, 38) extending through said end cap (32, 34) and engaged in a respective threaded bore defined in the respective one of said end plates (40, 42), each said end cap (32, 34) including a peripheral rim, extending in an axial direction with respect to the prosthetic intervertebral disc and located closely outwardly adjacent to and surrounding a part of the respective end plate (40,42) to which it is attached, including said tips of said fingers (72, 74), and preventing said winding from being disengaged from said fingers (72, 74). (a) a resiliently flexible and compressible nucleus having an upper face, a lower face, and a peripheral outer surface extending between said upper and lower faces; (b) an upper end plate located proximate said upper face and having a first plurality of fingers extending radially and having respective tips located radially outwardly beyond said peripheral outer surface of said nucleus; (c) a lower end plate located proximate said lower face and having a second plurality of fingers extending radially and having respective tips located radially outwardly beyond said peripheral outer surface of said nucleus; (d) a strand of flexible tension-bearing material separate from the nucleus extending around one of the-first plurality of fingers and to and around a respective one of the second plurality of fingers, separate from but adjacent said peripheral outer surface of said nucleus as a winding interconnecting said upper and lower end plates (40, 42) with each other; and (e) a respective end cap (32, 34) covering each of said end plates (40, 42) and attached thereto by at least one threaded fastener (36, 38) extending through said end cap (32, 34) and engaged in a respective threaded bore defined in the respective one of said end plates (40, 42), each said end cap (32, 34) including a peripheral rim, extending in an axial direction with respect to the prosthetic intervertebral disc and located closely outwardly adjacent to and surrounding a part of the respective end plate (40,42) to which it is attached, including said tips of said fingers (72, 74), and preventing said winding from being disengaged from said fingers (72, 74).