1. The boldness with which we accepted Rush pin fixation was not justified, and our period of external immobilization was too short -this will need to be extended.
2. A prebent Rush pin inserted in or near Lister's tubercle and adequate immobilization is an acceptable treatment for fractures of the radius.
3. A Rush pin is probably inadequate fixation for fractures of the ulna, because of poor fixation for rotatory stress. A slotted plate, or possibly a triangular or a diamond nail, appears to be preferable for internal fixation of the ulna.
4. The judicious use of primary iliac grafts and early bone-grafting in delayed union will improve the end results.