A clamp for linking first and second parts of a prosthesis, the clamp comprising a clamp body 4 having a first receiving portion 72 for receiving a first component 19 of a prosthesis assembly and a second receiving portion 74 for receiving a second component 67 of the prosthesis assembly, the clamp having a deflectable member 70 which deflects from a first position to a second position when one of the first and second components is introduced to its corresponding receiving portion, wherein when the deflectable member is in the second position and the other one of the first and second components is received by the clamp, the deflectable member engages with said other one of the first and second components. A locking member 78 may lock the clamp. The clamp 4 is part of a linkage 8 used to connect first 6 and second 7 parts of a prosthesis assembly 1.
