Modular prosthesis having neck component connected to stem component through cavity in body component

A modular assembly used in the replacement of a portion of a bone, the modular assembly comprising:

• a stem component for insertion into the bone, said stem component having a distal portion and a proximal portion;
• a body component connected to said stem component, said body component defining a stem-receiving cavity, and including a first taper;
• and
• a neck component connected to said stem component through said stem-receiving cavity, said neck component including a second taper that mates with said first taper;
• wherein the distal portion of the stem component has a shape which fits within said bone;
• wherein the body component has a shape such that at least a portion of the body component fits within said bone;
• and
• wherein the proximal portion of the stem component is shaped to insert into the stem-receiving cavity of the body component and the proximal portion of the stem component is shaped to engage with the neck component.

A modular assembly used in the replacement of a portion of a bone, the modular assembly comprising:

• a stem component for insertion into the bone;
• said stem component having a distal portion and a proximal portion;
• a body component connected to said stem component, said body component defining a first axis and having a cavity for receiving the proximal portion of the stem component, and including a first taper;
• and
• a neck component connected to said stem component through said cavity, said neck component defining a second axis, and including a second taper that mates with said first taper:
• wherein the distal portion of the stem component has a shape which fits within said bone;
• wherein the proximal portion of the stem component is shaped to engage with the neck component;
• wherein the second axis of the neck component is substantially parallel to the first axis of the body component;
• and
• wherein the neck component is shaped so that the neck component is rotatable about the second axis while maintaining the body component stationary.

A modular assembly having a length and being used in the replacement of a portion of a bone, the modular assembly comprising:

• a stem component for insertion into the bone, said stem component having a distal portion and a proximal portion, said stem component defining a stem component length;
• a body component connected to said stem component, said body component defining a stem-receiving cavity, and including a first taper;
• and
• a neck component connected to said stem component through said stem-receiving cavity, said neck component defining a neck component length, and including a second taper that mates with said first taper;
• wherein the distal portion of the stem component has a shape which fits within said bone;
• wherein the proximal portion of the stem component is shaped to fit within the stem-receiving cavity of the body component;
• and wherein the stem component length and the neck component length establish the length of the modular assembly.