An improved technique for allogeneic hip joint implantations.

A new technique which has been developed for the allogeneic hip-joint transplantation to enable minutely accurate processing of donor and recipient femoral head, neck, and hip-joints is dependent upon the manual skill of the surgeon. The donor and recipient parts had to be made congruent by free hand fitting. Even the most experienced surgeon cannot produce perfect form congruity of the whole contact surface between donor and recipient parts. The foregoing article presents new instruments and the techniques for 0.5 mm precision fit. An ideal fit of donor and recipient parts represents an important prerequisite for successful allogeneic joint implantations and accounts for improvement in previous results from such operations. Obviously, the cell-devitalized cold-conserved joints cannot produce optimum or permanent results, but can be implanted as an alternative to arthrosis in patients in vary young age groups. Further research on viable cartilage and bone in joint implantations await new advances in immunology and tissue typing.