Clinical and statistical comparison between the Lord and Mittelmeier total hip prostheses.

After a five year experience with two models of uncemented total hip prosthesis (Lord model and Mittelmeier model), two surgical teams analysed and compared the results in 88 cases with a view to ascertaining if there were any advantages of one model over the other. This was a prospective survey recording the standard parameters of assessment commonly accepted, and was subjected to statistical analysis. The results showed no superiority of one model over the other but they have reinforced our conviction of the superiority of uncemented prostheses over the cemented type.